JavaScript Mock Test 7 - Online MCQ Exam

Which of the following property is used to control column element breaks after an associated element when flowing multicolumn text?

1 Mark(s)

Your Answer:

column-break column-break
column-break-after column-break-after
column-count column-count
column-break-before column-break-before

What is database connectivity in Python?

1 Mark(s)

Your Answer:

Connecting to internet databases Connecting to internet databases
Establishing a connection between Python and databases
Creating new databases using Python Creating new databases using Python
Sending emails from Python to databases Sending emails from Python to databases

Function used for modelling density of an idealized point charge, as a function that is equal to zero everywhere except for zero and whose integral over the entire real line is one is:

1 Mark(s)

Your Answer:

unit impulse function unit impulse function
unit step function unit step function
dual step function dual step function
Heaviside step function Heaviside step function

First Operating System implemented by General Motors Research Laboratories in ___Generation In___?

1 Mark(s)

Your Answer:

1st Generation-1940 1st Generation-1940
2nd Generation-1940 2nd Generation-1940
2nd Generation-1950 2nd Generation-1950
3rd Generation-1960 Answer 3rd Generation-1960 Answer

All trees with n vertices consists of n-1 edges.

1 Mark(s)

Your Answer:

True True
False False

In advanced MapReduce, what is the purpose of the Hadoop MapReduce "Map-side Aggregation" technique?

1 Mark(s)

Your Answer:

Aggregate values on the mapper side Aggregate values on the mapper side
Combine intermediate key-value pairs on the mapper side
Sort and shuffle data Sort and shuffle data
Distribute data to reducers Distribute data to reducers

What will be the output of the following C++ code? #include <iostream> using namespace std; int main() { char *ptr; char Str[] = "abcdefg"; ptr = Str; ptr += 5; cout << ptr; return 0; }

1 Mark(s)

Your Answer:

fg fg
cdef cdef
defg defg
abcd abcd

In an abstract syntax tree, each internal node represents an operand and each leaf node represents an operator.

1 Mark(s)

Your Answer:

True True
False False

The _______________ takes on different shapes depending on the task you are performing?

1 Mark(s)

Your Answer:

active tab active tab
insertion point insertion point
mouse pointer mouse pointer
ribbon ribbon

What will be the output of the following? array1 = [100, 200, 300, 400, 500] array2 = [1,2,3,4,5] if array1 == array2 print "They are equal" else print "Not equal" end

1 Mark(s)

Your Answer:

They are equal They are equal
Not equal Not equal
Nil Nil
None of the mentioned None of the mentioned

Which of the following helps keys to be mapped into addresses?

1 Mark(s)

Your Answer:

hash function hash function
separate chaining separate chaining
open addressing open addressing
chaining using a linked list chaining using a linked list

Inverse Laplace transform of f(s)=4/(s2-2s-3) is:

1 Mark(s)

Your Answer:

e3t-et e3t-et
e-3t-et e-3t-et
e-3t-e-t e-3t-e-t
e3t-e-t e3t-e-t

What timestamp property denotes?

1 Mark(s)

Your Answer:

time at which WIFI is used time at which WIFI is used
the time at which data of the location is retrieved
the time at which callback function is evoked
current time current time

In advanced MapReduce, what is the purpose of the Hadoop MapReduce "Side Data Distribution"?

1 Mark(s)

Your Answer:

Distribute data to reducers Distribute data to reducers
Share data between Map and Reduce tasks Share data between Map and Reduce tasks
Manage computation resources Manage computation resources
Execute MapReduce jobs Execute MapReduce jobs

Which of the following is not window object method?

1 Mark(s)

Your Answer:

blur() blur()
close() close()
confirm() confirm()
unescape() unescape()

The exploration problem is where______.

1 Mark(s)

Your Answer:

Agent contains the knowledge of State and actions.
Agent does not contain the knowledge of State and actions.
Only actions are known to the agent. Only actions are known to the agent.
None of the above None of the above

Which of the following testing is also called Acceptance testing?

1 Mark(s)

Your Answer:

Beta testing Beta testing
White-box testing White-box testing
Grey box testing Grey box testing
Alpha testing Alpha testing

An Internet Protocol Version (IPv4) address is a:

1 Mark(s)

Your Answer:

8 bit address 8 bit address
16 bit address 16 bit address
32bit address 32bit address
48 bit address 48 bit address

What is the purpose of the def keyword in Python?

1 Mark(s)

Your Answer:

It is used to define a function It is used to define a function
It is used to declare a variable It is used to declare a variable
It is used to import a module It is used to import a module
It is used to create a loop It is used to create a loop

Data integrity is the process of protecting data from unauthorized:

1 Mark(s)

Your Answer:

Access Access
Control Control
Modification Modification
Interruption Interruption

What will be the output of the following PHP code ? <?php for ($i = 0;$i = -1;$i = 1) { print $i; if ($i != 1) break; } ?>

1 Mark(s)

Your Answer:

0 0
infinite loop infinite loop
-1 -1
1 1

Rendering engine is not responsible for

1 Mark(s)

Your Answer:

parsing the markup content (HTML) parsing the markup content (HTML)
parsing style information (CSS, XSL, and so on)
generating a visual presentation of the formatted content including media files referenced
none of the mentioned none of the mentioned

One popular classification technique in Business Intelligence (BI) reporting is ________ .

1 Mark(s)

Your Answer:

cluster analysis only cluster analysis only
regression analysis only regression analysis only
RFM analysis only RFM analysis only
both cluster analysis and regression analysis

Choose the statements which indicate the differences between the thread based multitasking and process based multitasking.

1 Mark(s)

Your Answer:

Process-based multitasking handles the concurrent execution of programs
Process-based multitasking handles the concurrent execution of pieces of the same program
Thread-based multitasking handles the concurrent execution of programs
Thread-based multitasking deals with the concurrent execution of pieces of the same program

In MS PowerPoint we press _____ key to start slideshow from current slide.

1 Mark(s)

Your Answer:

F5 F5
Ctrl + F5 Ctrl + F5
Shift + F5 Shift + F5
Alt + F5 Alt + F5

On-line real time systems become popular in______________generation?

1 Mark(s)

Your Answer:

First Generation First Generation
Second Generation Second Generation
Third Generation Third Generation
Fourth Generation Fourth Generation

Which of the following methods is used to merge two hashes together in Ruby?

1 Mark(s)

Your Answer:

merge merge
join join
combine combine
concat concat

What is the data type of the value "Hello, World" in Ruby?

1 Mark(s)

Your Answer:

Integer Integer
Float Float
String String
Boolean Boolean

Which of the following controls the process of interaction between the user and the operating system?

1 Mark(s)

Your Answer:

User interface User interface
Language translator Language translator
Platform Platform
Screen saver Screen saver

To distinguish between different streams, Stream Control Transmission Protocol (SCTP) uses:

1 Mark(s)

Your Answer:

stream borders stream borders
stream identifier stream identifier
stream wall stream wall
Stream ID code Stream ID code

In Stream Control Transmission Protocol (SCTP), the whole purpose of an association is to transfer data between:

1 Mark(s)

Your Answer:

2 ends 2 ends
multi ends multi ends
single end single end
3 ends 3 ends

What will be the output of the following C++ code? #include <iostream> #include <valarray> using namespace std; int main() { valarray<int> varr = { 10, 2, 20, 1, 30 }; cout<<"Sum of array: "<<varr.sum(); return 0; }

1 Mark(s)

Your Answer:

Sum of array: 20 Sum of array: 20
Sum of array: 53 Sum of array: 53
Sum of array: 12 Sum of array: 12
Sum of array: 63 Sum of array: 63

What type of graph traversal does Depth-First Search (DFS) utilize?

1 Mark(s)

Your Answer:

Recursive Recursive
Iterative Iterative
Level-by-level Level-by-level
Random Random

What is the code snippet to find all container elements with class “reveal”?

1 Mark(s)

Your Answer:

var elements = document.getElementsByClassName("reveal");
var elements = document.getElementByClassName("reveal");
var elements = document.getElementByName("reveal");
var elements = document.getElementsClassName("reveal");

Which of the following is a requirement when merging modified data into a DataSet ?

1 Mark(s)

Your Answer:

The DataSet schemas must match in order to merge
The destination DataSet must be empty prior to merging
A primary key must be defined on the DataTable objects
A DataSet must be merged into the same DataSet that created it.

SQL statements can be embedded with in general-purpose programming languages, like:

1 Mark(s)

Your Answer:

C C
C++ C++
JAVA JAVA
All of the Above All of the Above

What is the output of the given code? boolean_1 = 77<78 puts(boolean_1)

1 Mark(s)

Your Answer:

Nil Nil
True True
False False
Error Error

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JavaScript Mock Test 7 : Question 1 of 37