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Solved Objective Questions on jQuery Library set-1

0
1) Which of the following statements about the features of jQuery are True.

i) jQuery has an expressive syntax for referring to elements in the document.

ii) jQuery has an efficient query method for finding the set of document elements that match a CSS selector.

iii) jQuery has a useful set of methods for manipulating selected elements.

A. i, ii and iii only

B. i, ii and iv only

C. i, iii and iv only

D. All i, ii, iii and iv


2) If you are using $ in your own code, or are using another library, such as prototype, that uses $, you can call .......... to restore $ to its original value.

A. jQuery.noConflict()

B. jQuery.removeConflict()

C. jQuery.restoreDefault()

D. jQuery.restoreFunction()


3) Which of the following is/are the sources of Content Distribution Network(CDN) for jQuery.

A. jQuery CDN

B. Microsoft CDN

C. Google CDN

D. All of the above


4) Which of the following are the different ways of invoking jQuery() function.

i) invoke $() is to pass a CSS selector to it

ii) invoke $() is to pass an element or document or window object

iii) invoke $() is to pass a string of JavaScript code

iv) invoke $() is to pass a function to it

A. i, ii and iii only

B. i, ii and iv only

C. i, iii and iv only

D. All i, ii, iii and iv


5) The jQuery library defines a number of utility functions, one of them is ............ function for general purpose iteration and another is ............ function for parsing JSON text.

A. jQuery.each(), jQuery.JSONtext()

B. jQuery.iterate(), jQuery.parseJSON()

C. jQuery.each(), jQuery.parseJSON()

D. jQuery.general(), jQuery.parseJSON()


6) The value returned by $() are ......... ,they are array like, they have a length property and have numeric properties from o to length -1.

A. jQuery result

B. jQuery objects

C. jQuery array

D. jQuery length


7) In order to loop over all elements in a jQuery object, you can call the .......... method instead of writing a for loop.

A. array.map()

B. index()

C. each()

D. map()


8) ......... method expects a callback function as its sole argument, and it invokes that callback function once for each element in the jQuery object in document order.

A. array.map()

B. index()

C. each()

D. map()


9) ........... accepts a callback function as its argument and invokes that function once for each element of the jQuery object.

A. is()

B. index()

C. each()

D. map()


10) ........ takes a selector as its argument and returns true if at least one of the selected elements also matches the specified selector.

A. is()

B. index()

C. each()

D. map()



11) ........ handles browser incompatibilities and special cases and allows you to use either HTML attribute names of their JavaScript property equivalents.

A. attr()

B. removeattr()

C. handleattr()

D. useattr()


12) Match the following methods for working with the class attribute defined by jQuery with their definitions.

i) addClass()           a) tests for the presence of specified class

ii) toggleClass()      b) adds classes to elements that don't already have

iii) hasClass()          c) remove classes from selected elements

iv) removeClass()   d) adds classes from selected elements

A. i-b, ii-c, iii-d, iv-a

B. i-c, ii-d, iii-a, iv-b

C. i-d, ii-c, iii-b, iv-a

D. i-d, ii-b, iii-a, iv-c


13) ........ is a method for setting and querying the value attribute of HTML form elements and also for querying and setting the selection state of check boxes, radio buttons and <select> elements.

A. set()

B. val()

C. query()

D. attr()


14) In jQuery, .......... method measures positions relative to the document and returns them in the form of an object with left and top properties that hold the X and Y coordinates.

A. offset()

B. position()

C. offsetparent()

D. setparent()


15) The .......... method is like offset(), except that it is a getter only and it returns element positions relative to their offset parent, rather to the document as a whole.

A. width()

B. position()

C. offsetparent()

D. setparent()


Answers

1) D. All i, ii, iii and iv
2) A. jQuery.noConflict()
3) D. All of the above
4) B. i, ii and iv only
5) C. jQuery.each(), jQuery.parseJSON()
6) B. jQuery objects
7) C. each()
8) C. each()
9) D. map()
10) A. is()
11) A. attr()
12) D. i-d, ii-b, iii-a, iv-c
13) B. val()
14) A. offset()
15) B. position()

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Solved MCQ on Handling Events in Client Side JavaScript set-8

0
1) ........... include legacy event types such as "mousedown", "mousemove", "mouseup", "keydown", "keypress","keyup","touchmove" and "gesturechange" events.

A. Device dependent input events

B. Device independent input events

C. User interface events

D. State change events


2) ............ are not triggered directly by user activity, but by network or browser activity, and indicate some kind of lifecycle.

A. Device dependent input events

B. Device independent input events

C. User interface events

D. State change events


3) ............ include the focus event, the change event when the user changes the value and the submit event when the user clicks a submit button.

A. Device dependent input events

B. Device independent input events

C. User interface events

D. State change events


4) ........... allows the same event handler function to be registered more than once. When an event of the specified type occurs, the registered function will be invoked as many times as it was registered.

A. addEvent()

B. addMultipltEvent()

C. attachEvent()

D. reattachEvent()


5) Which of the following statements about the arguments of addEventListener() is/are True.

i) The first argument to addEventListener() is the event type for which the handler is being registered.

ii) The second argument to addEventListener() is the function that should be invoked when the specified type of event occurs.

iii) The third argument to addEventListener() is a numerical value.

A. i and ii only

B. i and iii only

C. ii and iii only

D. All i, ii and iii



6) When an event occurs on an object, all of the handlers registered for that type of event are invoked, in the order in which they were .........

A. occurred

B. registered

C. invoked

D. initialized


7) Invoking .......... more than once on the same object with the same arguments has no effect, the handler function remains registered only once, and repeated invocation does not alter the order in which handlers are invoked.

A. addEvent()

B. addMultipltEvent()

C. attachEvent()

D. addEventListener()


8) State which of the following statements are True or False about the rules of invocation order for event handler in JavaScript.

i) Handlers registered by setting an object property of HTML attribute, if any are always invoked first.

ii) Handlers registered with addEventListner() are invoked in the order in which they were registered.

iii) Handlers registered with attachEvent() may be invoked in any order and the code should not depend on sequential invocation.

A. i-True, ii-True, iii-False

B. i-True, ii-False, iii-False

C. i-True, ii-True, iii-True

D. i-False, ii-False, iii-True


9) .......... is universally supported also it works in all browsers including IE, and works for all handlers, regardless of how they are registered.

A. Event bubbling

B. Event handling

C. Event capturing

D. Event registering


10) ............, only works with event handlers registered with addEventListner() when the third argument is True.

A. Event bubbling

B. Event handling

C. Event capturing

D. Event registering



11) In browsers that support addEventListner(), we can also cancel the default action for an event by invoking the ........... method of the event object.

A. preventBrowsers()

B. preventDefault()

C. preventPropagation()

D. preventEvent()


12) The .............. event is fired when the document has been loaded and parsed and any deferred scripts have been executed.

A. DOMContent()

B. DOMContentLoad()

C. DOMLoaded()

D. DOMContentLoaded()


13) .......... is a user interface for transferring data between a "drag source" and "drop target" that may be in the same application or in different applications.

A. Drag-and-drop

B. User-drag-and-drop

C. Drag source-and-drop target

D. Source-drag-and-drop-target


14) Which of the following statements are True about the APIs for Implementing Drag-and-drop.

i) They have to tie into the underlying OS so that they can work between unrelated applications.

ii) They must provide a way for a drag source to specify the icon or image to be dragged.

iii) They must provide event-based notification to both the drag source and drop target of the progress of the Drag-and-drop interaction.

A. i and ii only

B. i and iii only

C. ii and iii only

D. All i, ii and iii


15) ......... objects have altKey, ctrlKey, metaKey and shiftKey properties, which are set to True if the corresponding modifier key is held down when the event occurs.

A. Key down

B. Key event

C. Key up

D. Key press

Answers


1) A. Device dependent input events
2) D. State change events
3) C. User interface events
4) C. attachEvent()
5) A. i and ii only
6) B. registered
7) D. addEventListener()
8) C. i-True, ii-True, iii-True
9) A. Event bubbling
10) C. Event capturing
11) B. preventDefault()
12) D. DOMContentLoaded()
13) A. Drag-and-drop
14) D. All i, ii and iii
15) B. Key event

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MCQ on Scripting Documents in Client Side JavaScript set-7

0
1) .......... method of the window object takes the X and Y coordinates of a point in document coordinates and sets these as the scroll bar offsets.

A. scrollTo()

B. scrollLeft()

C. scrollTop()

D. scrollFor()


2) We can compute the position of the element with ..........., converts that position to document coordinates and then use the scrollTo() method.

A. getBoundingClient()

B. getBounding()

C. getBoundingClientRect()

D. getBoundingRect()


3) The read-only .......... properties of any HTML element return its on screen size, in CSS pixels.

A. offsetWidth()

B. offsetHeight()

C. Both A and B

D. None of the above


4) ......... are like offesetWidth and offesetHeight except that they do not include the border size, only content area and its padding.

A. offesetLeft and offesetTop

B. clientWidth and clientHeight

C. clientLeft and clientTop

D. scrollWidth and scrollHeight


5) ............. properties return the horizontal and vertical distance between the outside of an element's padding and the outside of its border.

A. offesetLeft and offesetTop

B. clientWidth and clientHeight

C. clientLeft and clientTop

D. scrollWidth and scrollHeight



6) ........... are the size of an element's content area plus its padding plus any overflowing content.

A. offesetLeft and offesetTop

B. clientWidth and clientHeight

C. clientLeft and clientTop

D. scrollWidth and scrollHeight


7) Which of the following expressions in JavaScript is/are True, if we have to select a form name "address" has a first element with name "street".

A. document.forms.address[0]

B. document.forms.address.street

C. document.address.street

D. All of the above


8) Which of the following is/are the valid expressions, if we have to select a <form> with a name="address" attribute.

i) window.address

ii) document.address

iii) document.forms.address

iv) document.forms[n]

A. i, ii and iii only

B. ii, iii and iv only

C. i, ii and iv only

D. All i, ii, iii and iv


9) .......... method returns a selection object that describes the current selection as a sequence of one or more range objects.

A. window.objectSelection()

B. window.getSelection()

C. document.getSelection()

D. document.currentSelection()


10) State whether the following statements are True or False for the document.write() method in client side JavaScript.

i) The document.write() method was one of the very first scriptable APIs implemented by Netscape2 web browser.

ii) document.write() concatenates its string arguments and inserts the resulting string into the document at the location of the script element that invoked it.

iii) The document.write() method is commonly used in modern code i.e. innerHTML property and other DOM techniques.

A. i-True, ii-True, iii-False

B. i-True, ii-False, iii-False

C. i-True, ii-True, iii-True

D. i-False, ii-False, iii-True



11) When a document contains scrollable elements with overflowing content, the ............ method doesn't work correctly because it does not take scroll bar position into account.

A. getElementPosition()

B. getScrollPosition()

C. getScrollOffsets()

D. getBoundingClientRect()


12) .......... method is used in the case of passing the coordinates of the mouse pointer to determine which element the mouse is over.

A. getBoundingClientRect()

B. getElementFromPoint()

C. elementFromPoint()

D. getElementCoordinates()


13) The .......... method of the window is similar to scroll() and scrollTo(), but its arguments are relative and are added to the current scroll bar offsets.

A. scrollTop()

B. scrollBy()

C. scrollLeft()

D. scrollIntoView()


14) The ......... method ensures that the element on which it is invoked is visible in the view-port.

A. scrollTop()

B. scrollBy()

C. scrollLeft()

D. scrollIntoView()


15) The .......... property specifies which element the properties are relative to and if it is null, the properties are document object.

A. offsetLeft

B. offsetTop

C. offsetParent

D. offsetRelative


Answers:


1) A. scrollTo()
2) C. getBoundingClientRect()
3) C. Both A and B
4) B. clientWidth and clientHeight
5) C. clientLeft and clientTop
6) D. scrollWidth and scrollHeight
7) D. All of the above
8) D. All i, ii, iii and iv
9) B. window.getSelection()
10) A. i-True, ii-True, iii-False
11) A. getElementPosition()
12) C. elementFromPoint()
13) B. scrollBy()
14) D. scrollIntoView()
15) C. offsetParent


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MCQ on Scripting Documents in Client Side JavaScript set-6

0
1) ........ method allows you to insert a string of arbitrary HTML markup "adjacent" to the specified element.

A. insertAdjacentHTML()

B. insertBeforeHTML()

C. insertAfterHTML()

D. insertAfterendHTML()


2) ..........property is used to insert plain text into a document without having to escape the angle brackets and ampersands used in HTML markup.

A. insertText

B. plainContent

C. textContent

D. plainText


3) ........... is similar to textContent property introduced by Microsoft for Internet Explorer browser.

A. insertText

B. plainContent

C. textContent

D. innerText


4) ........ does not return the content of <script> elements, also omits extraneous white-space and attempts to preserve table formatting.

A. insertText

B. innerText

C. textContent

D. plainContent


5) State whether the following statements about inserting element content as plain text are True or False.

i) The textContent and innerText properties are similar enough that we can usually use them interchangeably.

ii) innerText is treated as a read-only property for certain table elements such as <table>, <tbody> and <tr>

iii) The textContent property is a straightforward concatenation of all Text node descendants of the specified element.

A. i-True, ii-True, iii-False

B. i-True, ii-False, iii-False

C. i-True, ii-True, iii-True

D. i-False, ii-False, iii-True



6) To insert element content as Text Nodes, .......... property is read/write and you can set it to change the content displayed by a Text or CDATASection node.

A. nodeContent

B. nodeType

C. nodeText

D. nodeValue


7) We can create new element nodes with the ........ method of the document object which can pass the tag name of the element as the method argument.

A. createElement

B. createNode

C. createDocumentNode

D. createElementNode


8) Every node has ........... method that returns a new copy of the node and passes true to recursively copy all descendants as well, or false to only make a shallow copy.

A. importNode()

B. cloneNode()

C. copyNode()

D. passNode()


9) ........... returns a copy suitable for insertion into the document and passes true as the second argument to recursively import all descendants.

A. importNode()

B. cloneNode()

C. copyNode()

D. passNode()


10) ........ is invoked on the element node that you want to insert into, and it inserts the specified node so that it becomes the last child of that node.

A. insertBefore()

B. appendChild()

C. insertAfter()

D. appendNode()



11) .......... takes two arguments, the first argument is the node to be inserted and the second argument is the node before which that node is to be inserted.

A. insertBefore()

B. appendChild()

C. insertAfter()

D. appendNode()


12) State whether the following statements are True or False for inserting nodes.

i) If you pass null in the second argument, the insertBefore() behaves like appendChild() and inserts at the end.

ii) If you call appendChild() or insertBefore() to insert a node that is already in the document, that node will automatically be removed from its current position and reinserted at its new position.

A. i-True, ii-False

B. i-False, ii-True

C. i-False, ii-False

D. i-True, ii-True


13) A .......... is a special kind of node that serves as a temporary container for other nodes.

A. Document Node

B. Document Partial

C. Document Fragment

D. Document Temporary


14) .......... can have any number of children, which we can manipulate with appendChild(), insertBefore() and so on.

A. Document Node

B. Document Partial

C. Document Fragment

D. Document Temporary


15) The ........... method allows us to determine the current position of an element in a view-port.

A. getBoundingClientRect()

B. elementFromPoint()

C. getElementByTagName()

D. pageXoffset()


Answers:

1) A. insertAdjacentHTML()
2) C. textContent
3) D. innerText
4) B. innerText
5) C. i-True, ii-True, iii-True
6) D. nodeValue
7) A. createElement
8) B. cloneNode()
9) A. importNode()
10) B. appendChild()
11) A. insertBefore()
12) D. i-True, ii-True
13) C. Document Fragment
14) C. Document Fragment
15) A. getBoundingClientRect()


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Solved MCQ on Scripting Documents in JavaScript set-5

0
1) The DOM defines a number of ways to select elements, by using which of the following methods we can query a document for an element or elements.

i) with a specified id attribute

ii) with a specified name attribute

iii) with the specified tag name

iv) with the specified CSS class or classes

A. i, ii and iii only

B. i, ii and iv only

C. i, iii and iv only

D. All i, ii, iii and iv



2) We can select an element based on unique ID with the ........... method of the document object.

A. getElementById()

B. getElementsById()

C. selectElementById()

D. selectElementsById()



3) The ......... attribute is only valid on a handful or HTML elements, including forms, form elements, <iframe> and <img> elements.

A. id

B. name

C. tag

D. class



4) .......... return NodeList objects and properties like document.images and document.forms are HTML Collection objects.

A. getElementsByName() and getElementsById()

B. getElementsById() and getElementsByTagName()

C. getElementsByName() and getElementsByTagName()

D. getElementsByClassName() and getElementsByTagName()



5) Like getElementsByTagName(), .......... can be invoked on both HTML documents and HTML elements, and it returns a live NodeList containing all matching descendants of the document or element.

A. getElementsById()

B. getElementsByName()

C. getElementsByClassName()

D. All of the above



6) .......... takes a single string argument containing a CSS selector and returns a Nodelist that represents all elements in the document that match the selector.

A. getElementsById()

B. getElementsByName()

C. getElementsByClassName()

D. querySelectorAll()



7) ........... is the ultimate element selection method and very powerful technique by which client side JavaScript programs can select the document elements that they are going to manipulate.

A. querySelectAll()

B. querySelector()

C. querySelectorAll()

D. querySelect()



8) The CSS selector ............ selects any <span> descendant of the element with id="log".

A. #log span

B. #log>span

C. #log=span

D. #log:span



9) The CSS selector ............ selects any <span> child of the element with id="log".

A. #log span

B. #log>span

C. #log=span

D. #log:span



10) The CSS selector .......... selects all <div> elements plus the element with id="log".

A. div #log

B. div.#log

C. div>#log

D. div, #log



11) ........... defines properties for the universal HTTP attributes such as id, title lang, and dir and event handler properties like onClick.

A. Element properties

B. HTMLElement

C. HTMLProperty

D. HTMLAttribute



12) ......... are not case sensitive, but JavaScript property names are.

A. Element properties

B. HTML element

C. HTML property

D. HTML attributes



13) .............. methods can be used to query and set non standard HTML attributes and to query and set attributes on elements of an XML document.

A. getAttribute() and setAttribute()

B. getElement() and setElement()

C. getDocument() and setDocument()

D. getHTML() and setHTML()



14) HTML elements defines two methods ............ to check for the presence of named attribute and remove an attribute entirely.

A. getAttribute() and setAttribute()

B. hasAttribute() and removeAttribute()

C. hasDocument() and removeDocument()

D. hasElement() and removeElement()



15) For XML documents the include attributes from other namespaces, can use the namespace variants of which of the following method(s).

A. getAttributeNS()

B. setAttributeNS()

C. hasAttributeNS()

D. All of the above


Answers:

1) D. All i, ii, iii and iv
2) A. getElementById()
3) B. name
4) C. getElementsByName() and getElementsByTagName()
5) C. getElementsByClassName()
6) D. querySelectorAll()
7) C. querySelectorAll()
8) A. #log span
9) B. #log>span
10) D. div, #log
11) B. HTMLElement
12) D. HTML attributes
13) A. getAttribute() and setAttribute()
14) B. hasAttribute() and removeAttribute()
15) D. All of the above


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Solved MCQ on JavaScript Window Object set-4

0
1. State whether the following statement are True or False for timers.

i) Like setTimeout(), setInterval() returns a value that can be passed to clearInterval() to cancel any future invocations of the scheduled function.

ii) If you call setTimeout() with a time of 0ms, the function you specify is not invoked right way.

A. i-True, ii-False

B. i-False,ii-True

C. i-True, ii-True

D. i-False, ii-False


2. The href property of the .......... object is a string that contains the complete text of the URL.

A. location

B. pathname

C. port

D. search


3. The .......... method of the Location object makes the window load and display the document at the URL you specify.

A. search()

B. load()

C. replace()

D. assign()


4) The ......... method removes the current document from the browsing history before loading a new document.

A. search()

B. remove()

C. replace()

D. assign()


5) Which of the following statements are True or False for Location object.

i) When a script unconditionally loads a new document, the replace() method is often a better choice than assign().

ii) In addition to the assign() and replace() methods, the Location object also defines reload(), which makes the browser reload the document.

iii) A only way to make the browser navigate to a new page is to simply assign the new full URL directly to the location property.

A. i-True, ii-True, iii-False

B. i-True, ii-False, iii-False

C. i-False, ii-True, iii-True

D. i-False, ii-False, iii-True


6) The .......... properties of the location object are writable, and setting them changes the location URL and also causes the browser to load a new document.

A. URL composition

B. URL decomposition

C. URL parsing

D. URL component


7) The properties like protocol, host, hostname, port, pathname, search and hash of Location object specify the various individual parts of the URL, they are known as ............ properties.

A. URL composition

B. URL decomposition

C. URL parsing

D. URL component


8) Which of the following statements are True for history property of the window object.

i) The length property of the history object specifies the number of elements in the browsing history list.

ii) The history object has back() and forward() methods that behave like the browsers back and forward buttons do.

A. i only

B. ii only

C. Both i and ii

D. None of the above


9) ......... method of the history object, takes an integer argument and can skip any number of pages forward for positive arguments or backward for negative arguments in the history list.

A. back()

B. backward()

C. forward()

D. go()


10) ........ method brings webpage back like clicking the back button twice.

A. history.go(-2)

B. history.back.back()

C. history.back(2)

D. history.go(2)


11) Match the following properties of Navigator object to their description.

i) appName            a) that identifies the operating system

ii) appVersion        b) all the information along with appVersion

iii) UserAgent        c) browser vender and version information

iv) platform           d) full name of the web browser

A. i-b, ii-c, iii-d, iv-a

B. i-c, ii-d, iii-a, iv-b

C. i-d, ii-c, iii-b, iv-a

D. i-a, ii-d, iii-c, iv-b


12) The .......... property specifies whether the browser is currently connected to the network.

A. navigator.online

B. geolocation

C. javaEnabled()

D. cookiesEnabled()


13) A ........... object that defines an API for determining the user's geographical location.

A. navigator.online

B. geolocation

C. javaEnabled()

D. cookiesEnabled()


14) .......... displays a model dialog box containing HTML formatted content and allows arguments to be passed to, and a value returned from, the dialog.

A.alert()

B. conform()

C. prompt()

D. showModelDialog()


15) State whether the following statements are True or False for methods for displaying simple dialog box on window object.

i) alert() displays a message to the user and waits for the user to dismiss the dialog.

ii) conform() displays a message, waits for the user to click an OK or Cancel button and returns positive or negative value.

iii) prompt() displays a message, waits for the user to enter a string, and returns that string.

A. i-True, ii-False, iii-True

B. i-True, ii-True, iii-False

C. i-False, ii-True, iii-True

D. i-False, ii-False, iii-False



Answers:

1) C. i-True, ii-True
2) A. location
3) D. assign()
4) C. replace()
5) A. i-True, ii-True, iii-False
6) B. URL decomposition
7) B. URL decomposition
8) C. Both i and ii
9) D. go()
10) A. history.go(-2)
11) C. i-d, ii-c, iii-b, iv-a
12) A. navigator.online
13) B. geolocation
14) D. showModelDialog()
15) A. i-True, ii-False, iii-True


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Solved MCQ on Basic Client Side JavaScript set-3

0

1. JavaScript can help to increase the user experience with which of the following method for a web page.

A. By creating animation and other effects to guide a user and help with page navigation.

B. By sorting the columns of a table to make it easier for searching on table.

C. By hiding certain content and revealing details progressively as the user "drills down" into that content.

D. All of the above.



2. Which of the following are the ways to embed Client side JavaScript code within HTML documents.

i) Inline, between a pair of <script> and </script> tags.

ii) From an external file specified by the src attribute of a <script> tag

iii) In an HTML event handler attribute, such as on-click or mouse over.

iv) In a URL that uses the special JavaScript protocol.

A. i, ii and iii only

B. ii, iii and iv only

C. i, ii and iv only

D. All i, ii, iii and iv



3. State Whether the following Statement about src attribute on JavaScript.

i) It simplifies the HTML files by allowing you to remove large blocks of JavaScript code from them.

ii) If a file of JavaScript code is shared by more than one page, it only needs to be downloaded once, by the first page that uses it.

iii) Linking to JavaScript code on Google servers can decrease the start-up time for the web pages, since the code already existed on all of the user's browser.

A. i-True, ii-False, iii-True

B. i-True, ii-True, iii-False

C. i-False, ii-True, iii-False

D. i-False, ii-False, iii-True



4) JavaScript code can register a/an ............. by assigning a function to a property of an element object that represents an HTML document in the document.

A. event handler

B. function handler

C. document handler

D. HTML handler



5) .......... specifies that the body of the URL is an arbitrary string of JavaScript code to be run by the JavaScript interpreter.

A. Javascript:web

B. JavaScript:code

C. JavaScript:protocol

D. JavaScript:interpreter




6) The ...... attribute causes the browser to defer execution of the script until after the document has been loaded and parsed and is ready to be manipulated.

A. sync

B. async

C. defer

D. All



7) The .......... attribute causes the browser to run the script as soon as possible but not to block document parsing while the script is being downloaded.

A. sync

B. async

C. defer

D. All



8) When the parser encounters a <script> element that has the ...... attribute set, it begins downloading the script text and continues parsing the document.

A. async

B. sync

C. parse

D. load



9) When the document is completely parsed, the document.readystate property changes to ......

A. ready

B. parsed

C. interactive

D. activated



10) Which of the following statements for restricted features of JavaScript is/are True.

A) A JavaScript program can open new browser windows, but must of the browsers restrict this feature.

B. A JavaScript program can close browser windows that it opened itself, but it is not allowed to close other windows without user conformation.

C. A script can read the content of documents loaded from different servers than the document that contains the script.

D. All of the above




11) ........... libraries are "frameworks" in the sense that they build a new higher-level API for client side programming on top of the standard and proprietary APIs offered by web browsers.

A. client-side framework

B. server-side framework

C. higher-level framework

D. web framework



12) The .......... library focuses on DOM and Ajax utilities, like jQuery does, and adds quite a few core-language utilities as well.

A. Dojo

B. Prototype

C. YUI

D. Closure



13) The ...... library is the client side library that Google uses for Gmail, Google Docs and other web applications.

A. Dojo

B. Prototype

C. GWT

D. Closure



14) ........ allow you to register a function to be invoked once or repeatedly after a specified amount of time has elapsed.

A. setTimeout()

B. setInterval()

C. Both A and B

D. None of the above



15) State True or False for the following Statements.

i) The setTimeout() method of the window object schedules a function to run after a specified number of milliseconds elapses.

ii) setTimeout() returns a value that can be passed to clearTimeout() to cancel the execution of the scheduled function.

iii) setTimeout() is like setInterval() except taht the specified function is invoked repeatedly at intervals of the specified number of milliseconds.

A. i-True, ii-False, iii-True

B. i-True, ii-True, iii-False

C. i-False, ii-True, iii-False

D. i-False, ii-False, iii-True




Answers:


1) D. All of the above.
2) D. All i, ii, iii and iv
3) B. i-True, ii-True, iii-False
4) A. event handler
5) C. JavaScript:protocol
6) C. defer
7) B. async
8) A. async
9) C. interactive
10) D. All of the above
11) A. client-side framework
12) B. Prototype
13) D. Closure
14) C. Both A and B
15) B. i-True, ii-True, iii-False


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Objective Questions on CSS Syntax and Property set-6

0

1) ....... media type is used for use with printed material and documents viewed onscreen in print preview mode.

A. Print

B. Projection

C. Aural

D. Screen



2) In CSS length measurement unit ....... defines a measurement in picas.

A. pi

B. pc

C. pt

D. px



3) In CSS length measurement unit ......defines a measurement in screen pixel.

A. pi

B. pc

C. pt

D. px




4) ........ defines a measurement relative to a font's x-height. The x-height is determined by the height of the font's lowercase letter x.

A. cm

B. em

C. ex

D. hx




5) Which of the following is the correct CSS code to set the background color of all h1, h2 and h3 elements to orange.

A. h1.h2.h3{background-color:orange;}

B. h1, h2, h3{background-color:orange;}

C. h1 h2 h3{background-color:orange;}

D. h1, h2, h3{set-background:orange;}




6) The CSS selector E>F selects ...

A. direct decedents

B. adjacent siblings

C. preceding siblings

D. all elements



7) The CSS selector E-F selects .....

A. direct decedents

B. adjacent siblings

C. preceding siblings

D. all elements



8) ........... selects all elements of E that have an attribute attr that starts with the value given in a list of hyphen-separated values.

A. E[attr-=value]

B. E[attr|=value]

C. E[attr~=value]

D. E[attr^=value]



9) .......... selects all elements of E that have the attribute attr that begins with the given value.

A. E[attr-=value]

B. E[attr|=value]

C. E[attr~=value]

D. E[attr^=value]



10) A single @charset rule can be used in a/an ........... to define character set encoding of the style rules and values.

A. external sheet

B. internal sheet

C. inline codes

D. Both A and B




11) An ......... rule can be used to define style rules for multiple media types in a single embedded style sheet.

A. @embedded

B. @media

C. @page

D. @multiple



12) An ........... rule is used to define a page block for printed styles. Generally, within this construct we see various CSS properties like size, page, and margin to control the dimensions of the page.

A. @embedded

B. @media

C. @page

D. @print



13) Which of the following are the sub properties of background property used in CSS Except.

A. background-color

B. background-scroll

C. background-image

D. background-repeat



14) Which of the following is the default value of background-image property in CSS.

A. url

B. inherit

C. none

D. both A and B



15) State whether the following statements are True or False.

i) Background-position property determines how a background image is positioned within the canvas space by associated element.

ii) The default value for background-attachment property is fixed.

iii) The background image requires a URL(complete or relative) to link it to the source image specified with the url() syntax.

A. i-True, ii-True, iii-False

B. i-True, ii-False, iii-False

C. i-False, ii-True, iii-True

D. i-True, ii-False, iii-True



16) Which of the following is/are the sub properties of border property in CSS.

A. border-width

B. border-style

C. border-color

D. All of the above



17) Match the following CSS cursor resizing property with their descriptions.

i) e-resize a) pointing north south.

ii) ne-resize b) pointing northwest-southeast

iii) nw-resize c) pointing northeast-southwest

iv) n-resize d) pointing east-west(left-right)

A. i-d, ii-c, iii-b, iv-a

B. i-c, ii-b, iii-a, iv-d

C. i-b, ii-c, iii-d, iv-a

D. i-d, ii-a, iii-b, iv-c



18) ......... property controls how spaces, tabs, and newline charters are handled in an element.

A. visibility

B. white-space

C. tab-space

D. line-space



19) ......... property controls the algorithm used to lay out the table, cells, rows, and columns.

A. table-layout

B. cell-layout

C. row-column-layout

D. None of the above



20) ......... property is used to force or prohibit a printing page break within an element.

A. page-break-outside

B. page-break-inside

C. printing-page-break

D. page-break-element


Answers:

1) A. Print
2) B. pc
3) D. px
4) C. ex
5) B. h1, h2, h3{background-color:orange;}
6) A. direct decedents
7) C. preceding siblings
8) B. E[attr|=value]
9) D. E[attr^=value]
10) A. external sheet
11) B. @media
12) C. @page
13) B. background-scroll
14) C. none
15) D. i-True, ii-False, iii-True
16) D. All of the above
17) A. i-d, ii-c, iii-b, iv-a
18) B. white-space
19) A. table-layout
20) B. page-break-inside
478f8ffac419307280ec7a8194f9ee837ed62daf3f47597227


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Solved Multiple Choice Questions on Basic CSS set-5

0

1) All of the following statement about CSS styles are True Except.

A. External style sheets can set and update styles for many documents at once.

B. In inline style, it can be easily control style to a single character instance.

C. In some cases @import is used in inline styles

D. There is no additional network requests required to retrieve style information.



2) ............. requires extra download round-trip for t he style sheet, which might delay page rendering, particularly when multiple files are in use.

A. External Style Sheets

B. Document Wide Style

C. Inline Style

D. All of the above



3) For .............., it needs to reapply style information throughout the document and outside documents.

A. External Style Sheets

B. Document Wide Style

C. Inline Style

D. All of the above



4) Which of the following is the correct example of document wide style in CSS.

A. <h1 style="color:red;"> I am red !</h1>

B. <h1 color="red"> I am red ! </h1>

C. <style type="text/css" media="all"> h1{color:red;}</style>

D. <style type="stylesheet" media="all"> h1{color:red;}</style>



5) .......... overrides any document styles in the absence of !import directive.

A. Document Wide Style

B. Inline Style

C. External Style Sheets

D. All of the above



6) Which of the following statements are True about the types of CSS stylesheets.

i) Document wide style can easily control style document by document.

ii) Document wide style needs additional network requests to retrieve style information.

iii) With external style sheets, style information is cached by the browser, so there's no need to repeat.

A. i-True, ii-True, iii-False

B. i-True, ii-False, iii-True

C. i-True, ii-False, iii-False

D. i-False, ii-True, iii-True



7) Media type defined under CSS 2.1 for use with low resolution teletypes, terminals, or other devices with limited display capabilities is

A. tt

B. tv

C. ttd

D. tty



8) Which of the following is/are the media types defined in CSS.

A. aural

B. embossed

C. print

D. All of the above



9) As defined in CSS2 ........ selects all elements of E that have a space separated list of values for attr where one of those values is equal to the given value.

A. E[attr~=value]

B. E[attr|=value]

C. E[attr=value]

D. All of the above



10) Which of the following selector selects all elements of E that have the attribute attr that ends with the given value in CSS3.

A. E[attr#=value]

B. E[attr$=value]

C. E[attr^=value]

D. E[attr!=value]




11) Which of the following CSS code sets the font style to italic on all p tags that have one word in their title equal to test.

A. p[title~="Test"]{font-style:italic;}

B. p[title|="Test"]{font-style:italic;}

C. p[title="Test"]{font-style:italic;}

D. p[title^="Test"]{font-style:italic;}



12) Which of the following CSS code sets the font-weight to bold on all a tags that have their href attribute set to http://www.siteforinfotech.com

A. a[href*="http://www.siteforinfotech.com"]{font-weight:bold;}

B. a[href~="http://www.siteforinfotech.com"]{font-weight:bold;}

C. a[href$="http://www.siteforinfotech.com"]{font-weight:bold;}

D. a[href="http://www.siteforinfotech.com"]{font-weight:bold;}



13) Match the following CSS selectors with their respective definitions.

i) a:link a) specifies the link as it is being pressed.

ii) a:active b) specifies the link after being pressed

iii) a:visited c) specifies the unvisited link

A. i-a, ii-c, iii-b

B. i-b, ii-a, iii-c

C. i-c, ii-a, iii-b

D. i-a, ii-c, iii-b



14) The following CSS code strong:first-of-type{font-size: bigger;}

A. sets the font size bigger on the first strong tag of its parent.

B. sets the font size bigger on all of the strong tag of its parent.

C. sets the font size bigger on the strong tag if only the child of its parent.

D. None of the above options.



15) Which of the following selector is not defined in CSS3.

A. :root

B. :empty

C. :not(a)

D. :lang(value)



16) Which of the following is/are the sub properties of borders property in CSS.

i) border

ii) border-top

iii) border-top-style

iv) border-bottom-position

v) border-top-width

A. i, ii, iv and v

B. ii, iii, iv and v

C. i, ii, iii and v

D. iii, iv and v



17) Which of the following is not the CSS propery to display the generated content.

A. conter-reset

B. counter-stop

C. counter-increment

D. content



18) The CSS properties page-break-before, page-break-after, page, and size are included in which CSS property.

A. print property

B. print preview property

C. page setup property

D. All of the above



19) Which of the following is/are the sub properties of background property in CSS.

A. background-color

B. background-image

C. background-attachment

D. All of the above



20) In CSS3, ......... selects an element that has no children.

A. :not(a)

B. :empty

C. :root

D. :lang(value)


Answers:


1) C. In some cases @import is used in inline styles
2) A. External Style Sheets
3) C. Inline Style
4) C. <style type="text/css" media="all"> h1{color:red;}</style>
5) B. Inline Style
6) B. i-True, ii-False, iii-True
7) D. tty
8) D. All of the above
9) A. E[attr~=value]
10) B. E[attr$=value]
11) A. p[title~="Test"]{font-style:italic;}
12) D. a[href="http://www.siteforinfotech.com"]{font-weight:bold;}
13) C. i-c, ii-a, iii-b
14) A. sets the font size bigger on the first strong tag of its parent.
15) D. :lang(value)
16) C. i, ii, iii and v
17) B. counter-stop
18) A. print property
19) D. All of the above
20) B. :empty


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Solved MCQ on Core Operating System Principle set-13

0
1) In memory management, a technique called as paging, the physical memory is broken into fixed sized blocks called .........

A. pages

B. frames

C. blocks

D. segments


2) Which method is used to recover from deadlock?

A. Process termination

B. Resource preemption

C. Resource non-preemption

D. Process termination and Resource preemption


3) Saving the state of the old process and loading the saved state of the new process is called ....

A. context switch

B. static

C. multi programming

D. none of the above


4) The degree of Multiprogramming is controlled by ......

A. CPU scheduler

B. context switching

C. long term scheduler

D. medium term scheduler


5) Input transfers are done in advance and output transfers are done after sometimes in which of these technique?

A. Spooling

B. Buffering

C. Swapping

D. Paging


6) A binary semaphore .........

A. has the values one or zero

B. is essential to binary computers

C. is used only for synchronization

D. is used only for mutual exclusion


7) A scheduling algorithm is fair .......

A. if no process faces starvation.

B. if a process is starved, detect it and run it with high priority

C. if it uses semaphores

D. only if a queue is used for scheduling


8) Which of the following is also known as Double buffering?

A. anticipated buffering

B. buffer swapping

C. circular buffering

D. swapping buffering


9) .......... is the ability of a system to continue functioning in the event of partial system failure.

A. fault avoidance

B. fault tolerance

C. fault detection

D. fault recovery


10) Virtual memory is .........

A. an extremely large main memory

B. an extremely large secondary memory

C. an illusion of extremely large main memory

D. a type of memory used in super computers


11) Error handling and I/O interrupt handling are the functions of ......

A. I/O device Handler

B. I/O traffic controller

C. I/O scheduler

D. I/O buffer


12) In a multi-threaded environment..........

A. each thread is allocated with new memory from main memory

B. main thread terminates after the termination of child threads

C. every process can have only one thread

D. none of the above


13) The kernel keeps track of the state of each task by using a data structure called ......

A. process control block

B. user control block

C. memory control block

D. hardware control block


14) A virtual device is a ..........

A. dedicated for none purpose

B. shared device converted to a dedicated device

C. dedicated device converted to a shared device

D. shared device


15) CPU scheduling is the basis of ...........operating system.

A. batch

B. real time

C. multiprogramming

D. monoprogramming


16) ......... is a high speed cache used to hold recently referenced page table entries a part of paged virtual memory.

A. Translation look a side buffer

B. Inverse page table

C. Segmented page table

D. Indexed page table


17) A technique that smooths out peaks in I/O demand is ........

A. spooling

B. buffering

C. swapping

D. paging


18) In kernel model, the operating system services such as process management, memory management are provided by the kernel.

A. monolithic

B. micro

C. macro

D. Complex


19) A process is said to be in ........... state if it was waiting for an event that will never occur.

A. safe

B. unsafe

C. starvation

D. dead lock


20) Which of the following is an example of spooled device?

A. The terminal used to enter the input data for a program being executed

B. The secondary memory device in a virtual memory system

C. A line printer used to print the output of a number of jobs

D. None of the above

Answers:

1) B. frames
2) D. Process termination and Resource preemption
3) A. context switch
4) C. long term scheduler
5) B. Buffering
6) A. has the values one or zero
7) A. if no process faces starvation
8) B. buffer swapping
9) B. fault tolerance
10) C. an illusion of extremely large main memory
11) A. I/O device Handler
12) B. main thread terminates after the termination of child threads
13) A. process control block
14) B. shared device converted to a dedicated device
15) C. multiprogramming
16) A. Translation look a side buffer
17) B. buffering
18) A. monolithic
19) D. dead lock
20) C. A line printer used to print the output of a number of jobs


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