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MCQOPTIONS
This section includes 183 Mcqs, each offering curated multiple-choice questions to sharpen your Javascript knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
_ Which is the property that is triggered in response to JavaScript errors?$? |
| A. | onexception |
| B. | onmessage |
| C. | onerror |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 102. |
_ What value does the keyCode property holds when a Shift key is pressed for adding punctuation character?$? |
| A. | Special characters |
| B. | Alphabets |
| C. | Alphanumeric |
| D. | Digits |
| Answer» E. | |
| 103. |
_ Which property holds a DataTransfer object that contains information about the data being transferred and the formats in whichh it is available?$? |
| A. | dataTransfer |
| B. | transferData |
| C. | dataExchange |
| D. | exchangeData |
| Answer» B. transferData | |
| 104. |
_ The events that is emulated by the jQuery library are$? |
| A. | focusarea and focusover |
| B. | focusall and focusnone |
| C. | focusdown and focusup |
| D. | focusin and focusout |
| Answer» C. focusdown and focusup | |
| 105. |
_ Which property reports rotation around three different mouse wheel axes?$? |
| A. | ctrlKey |
| B. | alterX |
| C. | alterY |
| D. | deltaX |
| Answer» E. | |
| 106. |
__The client-side JavaScript’s asynchronous programming model contains__ |
| A. | Timers and error handlers |
| B. | User interface events |
| C. | State change events |
| D. | API-specific events |
| Answer» B. User interface events | |
| 107. |
__Which of the following uses scripted HTTP?__ |
| A. | XML |
| B. | HTML |
| C. | Ajax |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 108. |
_What is the purpose of the method item()?$? |
| A. | Returns node after the specified index |
| B. | Returns node before the specified index |
| C. | Returns node at specified index |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 109. |
_How to test if two nodes are equal?$? |
| A. | isEqualNode() |
| B. | equal() |
| C. | == |
| D. | none of the mentioned |
| Answer» B. equal() | |
| 110. |
_Which of the following explains Cookies nature?$? |
| A. | Non Volatile |
| B. | Volatile |
| C. | Intransient |
| D. | Transient |
| Answer» E. | |
| 111. |
_How many nodetype – named constants are available?$? |
| A. | 13 |
| B. | 11 |
| C. | 12 |
| D. | 10 |
| Answer» D. 10 | |
| 112. |
_Which of the following is a boolean cookie attribute?$? |
| A. | bool |
| B. | secure |
| C. | lookup |
| D. | domain |
| Answer» C. lookup | |
| 113. |
_What will happen if we call setTimeout() with a time of 0 ms?$? |
| A. | Placed in stack |
| B. | Placed in queue |
| C. | Will run continuously |
| D. | None of the mentioned |
| Answer» C. Will run continuously | |
| 114. |
_Which among the following is not a property of the Location object?$? |
| A. | protocol |
| B. | host |
| C. | hostee |
| D. | hostname |
| Answer» D. hostname | |
| 115. |
_Why is the replace() method better than the assign() method?$? |
| A. | Reliable |
| B. | Highly managable |
| C. | More efficient |
| D. | Handles unconditional loading |
| Answer» E. | |
| 116. |
_The node directly above a node is called$? |
| A. | sibling |
| B. | child |
| C. | parent |
| D. | ancestors |
| Answer» D. ancestors | |
| 117. |
_The length property belongs to which of the following objects?$? |
| A. | Window |
| B. | Element |
| C. | History |
| D. | Document |
| Answer» D. Document | |
| 118. |
_Which is the preferred testing nowadays for scripting?$? |
| A. | Software testing |
| B. | Feature testing |
| C. | Blackbox testing |
| D. | Whitebox testing |
| Answer» C. Blackbox testing | |
| 119. |
_What is the distinction made by the Client-side JavaScript between windows, tabs, iframes, and frames ?$? |
| A. | They are all browsing contexts |
| B. | They are all browsing informations |
| C. | They are all Window contexts |
| D. | They are all Window objects |
| Answer» B. They are all browsing informations | |
| 120. |
_Which is the property of a Window object that holids the name of the frame?$? |
| A. | name |
| B. | title |
| C. | description |
| D. | none of the mentioned |
| Answer» B. title | |
| 121. |
_Which of the following is a factory function?$? |
| A. | $() |
| B. | jQuery() |
| C. | Queryanalysis() |
| D. | None of the mentioned |
| Answer» C. Queryanalysis() | |
| 122. |
_Which of the following is an equivalent replacement of $(document).ready(f)?$? |
| A. | jQuery(f) |
| B. | $(f) |
| C. | #(f) |
| D. | None of the mentioned |
| Answer» C. #(f) | |
| 123. |
_Which of the following are the features of an HTTP request?$? |
| A. | URL being requested |
| B. | Optional request body |
| C. | Optional set of request headers |
| D. | All of the mentioned |
| Answer» E. | |
| 124. |
_Which of the following are objective database and not a relational database?$? |
| A. | Web SQL Database |
| B. | FileSystem API |
| C. | IndexedDB |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 125. |
_What is the alternate way to search in an IndexedDB API?$? |
| A. | Key |
| B. | Address |
| C. | Indexes |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 126. |
_Which is the Microsoft’s own proprietary client-side storage?$? |
| A. | IE User Data |
| B. | Offline Web Applications |
| C. | Cookies |
| D. | All of the mentioned |
| Answer» B. Offline Web Applications | |
| 127. |
_What is the lifetime of the data stored through localStorage?$? |
| A. | Permanant |
| B. | Temporary |
| C. | Both Permanant and Temporary at times |
| D. | Cannot store |
| Answer» B. Temporary | |
| 128. |
_In general, event handler is nothing but$? |
| A. | function |
| B. | interface |
| C. | event |
| D. | handler |
| Answer» B. interface | |
| 129. |
_The events that are directly tied to a specific input device are$? |
| A. | Device-independent input events |
| B. | Device-dependent input events |
| C. | User interface events |
| D. | State change events |
| Answer» C. User interface events | |
| 130. |
_Which of the following is the ultiate element selection method?$? |
| A. | querySelectorAll() |
| B. | querySelector() |
| C. | queryAll() |
| D. | query() |
| Answer» B. querySelector() | |
| 131. |
_Which of the following is the default positioning elements with CSS?$? |
| A. | relative |
| B. | static |
| C. | absolute |
| D. | none of the mentioned |
| Answer» C. absolute | |
| 132. |
_Which of the following can be used to select HTML elements based on the value of their name attributes?$? |
| A. | getElementByName() |
| B. | getElementsByName() |
| C. | getElementsName() |
| D. | getElementName() |
| Answer» C. getElementsName() | |
| 133. |
_Which is the handler method used to invoke when uncaught JavaScript exceptions occur?$? |
| A. | Onhalt |
| B. | Onerror |
| C. | Both onhalt and onerror |
| D. | None of the mentioned |
| Answer» C. Both onhalt and onerror | |
| 134. |
Which of the following Node object property returns the local part of the name of a node?$? |
| A. | lastName |
| B. | localName |
| C. | firstName |
| D. | none of the mentioned |
| Answer» C. firstName | |
| 135. |
Which method is used to add a binding?$? |
| A. | binding() |
| B. | add_bind() |
| C. | bind() |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 136. |
Which of the following keys are set to true when the keyboard modifier keys are held down?$? |
| A. | altKey |
| B. | ctrlKey |
| C. | metaKey |
| D. | all of the mentioned |
| Answer» E. | |
| 137. |
Which is the opposite to the load event in JavaScript?$? |
| A. | dontload |
| B. | postload |
| C. | preload |
| D. | unload |
| Answer» E. | |
| 138. |
Which property is used to specify the key type when pressed?$? |
| A. | keyCode |
| B. | keyType |
| C. | keyName |
| D. | keyProperty |
| Answer» B. keyType | |
| 139. |
Which of the following are the drag and drop events?$? |
| A. | drop |
| B. | dragstart |
| C. | both drop and dragstart |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 140. |
The element that can also register handlers for load and error events is$? |
| A. | html |
| B. | img |
| C. | body |
| D. | form |
| Answer» C. body | |
| 141. |
Which object is passed as the argument to handlers for keydown, keyup, and keypress events?$? |
| A. | KeyboardEvent |
| B. | Key Event |
| C. | Mouse Event |
| D. | Alphabet Event |
| Answer» B. Key Event | |
| 142. |
The video and the audio belong to the$? |
| A. | Timers and error handlers |
| B. | API-Specific events |
| C. | State change events |
| D. | User interface events |
| Answer» C. State change events | |
| 143. |
Which method is an alternative of the property location of a window object?$? |
| A. | submit() |
| B. | locate() |
| C. | load() |
| D. | none of the mentioned |
| Answer» B. locate() | |
| 144. |
What does the nodeName of the nodeType Document return?? |
| A. | doctype name |
| B. | target |
| C. | #comment |
| D. | #document |
| Answer» E. | |
| 145. |
What is the purpose of the method getUserData(key)?? |
| A. | Returns the associated object |
| B. | Gets the user data |
| C. | Returns the user data |
| D. | None of the mentioned |
| Answer» B. Gets the user data | |
| 146. |
The Cookie manipulation is done using which property?? |
| A. | cookie |
| B. | cookies |
| C. | manipulate |
| D. | none of the mentioned |
| Answer» B. cookies | |
| 147. |
What is the purpose of the DocumentFragment node type?? |
| A. | To hold a portion of a document |
| B. | To split the document into fragments |
| C. | To hold the entire document |
| D. | None of the mentioned |
| Answer» B. To split the document into fragments | |
| 148. |
How can you set a Cookie visibility scope to localStorage?? |
| A. | / |
| B. | % |
| C. | * |
| D. | All of the mentioned |
| Answer» B. % | |
| 149. |
Which method receives the return value of setTimeout() to cancel future invocations?? |
| A. | clearTimeout() |
| B. | clearInterval() |
| C. | clearSchedule() |
| D. | none of the mentioned |
| Answer» B. clearInterval() | |
| 150. |
What does the location property represent?? |
| A. | Current DOM object |
| B. | Current URL |
| C. | Both DOM object and URL |
| D. | None of the mentioned |
| Answer» B. Current URL | |