Web Development Mock Test 9

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

The NOT Like operator is an:

1 Mark(s)

Your Answer:

Special operator Special operator
Procedural operator Procedural operator
Operational operator Operational operator
Comparison operator Comparison operator

Who is the inventor of Mouse?

1 Mark(s)

Your Answer:

Leo Tolstoy Leo Tolstoy
Douglas Engelbert Douglas Engelbert
Saint Helena Saint Helena
James Chadwick Answer James Chadwick Answer

What does the "else" statement in an "if-else" statement block indicate?

1 Mark(s)

Your Answer:

A syntax error A syntax error
A comment A comment
The end of the if statement The end of the if statement
The block of code to execute if the condition is false

Which of the following jQuery method is used to reduce the set of matched elements to a single element?

1 Mark(s)

Your Answer:

isEqual() method isEqual() method
val() method val() method
eq() method eq() method
delegate() method delegate() method

What will be the output? class Parent{ public void method(){ System.out.println("Hi i am parent"); } } public class Child extends Parent{ protected void method(){ System.out.println("Hi i am Child"); } public static void main(String args[]){ Child child = new Child(); child.method(); } }

1 Mark(s)

Your Answer:

Compiles successfully and print Compiles successfully and print
Run Time error Run Time error
Compile time error Compile time error
None of These None of These

What will be the output of the following C code? #include <stdio.h> int main() { int i = 0; do { i++; if (i == 2) continue; printf("In while loop "); } while (i

1 Mark(s)

Your Answer:

In while loop 2 In while loop 2
In while loop in while loop 3 In while loop in while loop 3
In while loop 3 In while loop 3
Infinite loop Infinite loop

What is the color of an unvisited link?

1 Mark(s)

Your Answer:

red red
blue blue
purple purple
green green

Large transaction processing systems in automated organisations use___________?

1 Mark(s)

Your Answer:

Online processing Online processing
Batch Processing Batch Processing
Once-a-day Processing Once-a-day Processing
End-of-day processing End-of-day processing

In a distributed system, a client sends the request, and the server provides_____

1 Mark(s)

Your Answer:

Data Data
Service Service
Information Information
All of the above All of the above

<P> is called

1 Mark(s)

Your Answer:

Paragraph tag Paragraph tag
Container tag Container tag
Head tag Head tag
None of the above None of the above

When AUTOCOMMIT is set on, changes will be made automatically at the end of each SQL statement.

1 Mark(s)

Your Answer:

True True
False False

Computer's critical parts which is used to process and store data is called:

1 Mark(s)

Your Answer:

hard disk hard disk
system unit system unit
mother board mother board
monitor monitor

The singular word for stomata is:

1 Mark(s)

Your Answer:

stomata stomata
stomata's stomata's
stoma stoma
stomas stomas

What will be the output of the following PHP code? <?php echo(atan(0.50)); ?>

1 Mark(s)

Your Answer:

0.11845976421345 0.11845976421345
0.23568451142521 0.23568451142521
0.46364760900081 0.46364760900081
1 1

HTTP uses the services of TCP on well-known port:

1 Mark(s)

Your Answer:

80 80
1022 1022
404 404
505 505

The primary key is selected from the:

1 Mark(s)

Your Answer:

composite keys. composite keys.
determinants. determinants.
candidate keys. candidate keys.
foreign keys. foreign keys.

Which one of the following is not a valid reserved keyword in C++

1 Mark(s)

Your Answer:

Explicit Explicit
Public Public
Implicit Implicit
Private Private

Which of these about a dictionary is false?

1 Mark(s)

Your Answer:

The values of a dictionary can be accessed using keys
The keys of a dictionary can be accessed using values
Dictionaries aren't ordered Dictionaries aren't ordered
Dictionaries are mutable Dictionaries are mutable

Excel is a program that is used to prepare a ______?

1 Mark(s)

Your Answer:

Spreadsheet Spreadsheet
Database Database
Workbook Workbook
None of these None of these

Determine output of the following program code? public class Test{ public static void main(String args[]){ int i; try{ i = calculate(); System.out.println(i); }catch(Exception e){ System.out.println("Error occured"); } } static int calculate(){ return (7/2); } }

1 Mark(s)

Your Answer:

3 3
3.5 3.5
Error occured Error occured
Compilation Error Compilation Error
None of these None of these

Prefix exa has factor of:

1 Mark(s)

Your Answer:

1024 1024
1021 1021
1018 1018
1015 1015

In a Binary Search Tree (BST), what does the term "node height" refer to?

1 Mark(s)

Your Answer:

The number of edges from the node to its deepest descendant.
The number of nodes in the subtree. The number of nodes in the subtree.
The number of edges from the node to its parent.
The total number of nodes in the tree. The total number of nodes in the tree.

Ctrl + Z Shortcut is used in Microsoft Word to_____________?

1 Mark(s)

Your Answer:

Undo the last Action Undo the last Action
Redo the last Action Redo the last Action
Add the new page Add the new page
Paste the contents from clipboard Paste the contents from clipboard

fwrite() can be used only with files that are opened in binary mode.

1 Mark(s)

Your Answer:

true true
false false

1 Byte =___________?

1 Mark(s)

Your Answer:

8 bits 8 bits
4 bits 4 bits
2 bits 2 bits
9 bits 9 bits

Which one of the file systems applies gossip protocols?

1 Mark(s)

Your Answer:

CODA CODA
Ficus Ficus
Rover Rover
None of the above None of the above

What is the S.I unit of acceleration?

1 Mark(s)

Your Answer:

m / s m / s
m / s2 m / s2
m / s3 m / s3
ms2 ms2

Out of these which source of energy used in photosynthesis?

1 Mark(s)

Your Answer:

A) Coal A) Coal
B) Petrol B) Petrol
C) Wood C) Wood
D) Sunlight D) Sunlight

What type of binary tree has all levels fully filled except possibly the last level?

1 Mark(s)

Your Answer:

Complete binary tree Complete binary tree
Full binary tree Full binary tree
Perfect binary tree Perfect binary tree
Balanced binary tree Balanced binary tree

What is the primary role of the Pig Latin scripting language in Apache Pig?

1 Mark(s)

Your Answer:

Perform data analytics in Hadoop Perform data analytics in Hadoop
Manage computation resources Manage computation resources
Define data transformation steps Define data transformation steps
Execute MapReduce jobs Execute MapReduce jobs

To avoid eyestrain we have to:

1 Mark(s)

Your Answer:

use an anti large screen to reduce reflection
keep our screen clean keep our screen clean
avoid looking at a monitor more than 30 mins without taking a break
all of these all of these

Correlated subqueries are similar to a regular subquery.

1 Mark(s)

Your Answer:

True True
False False

What is the keyboard shortcut to insert a SUM formula in MS Excel?

1 Mark(s)

Your Answer:

CRTL+ = CRTL+ =
ALT + = ALT + =
ALT + S ALT + S
CTRL + ALT+ = CTRL + ALT+ =

What will happen if you try to set a value to a constant once it has been declared?

1 Mark(s)

Your Answer:

The value of the variable will change The value of the variable will change
The value of the variable will not change
Parse Error Parse Error
Nothing Nothing

In peer-to-peer networking:

1 Mark(s)

Your Answer:

there is only one server and many clients
there is only one client and many servers
every computer is capable of playing the role of server
every computer is capable of playing the role of client, server or both at the same time

Which of the following jQuery method is used to hide the selected elements?

1 Mark(s)

Your Answer:

The hidden() method The hidden() method
The hide() method The hide() method
The visible(false) method The visible(false) method
The display(none) method The display(none) method

R has many functions regarding . . . . . . . .

1 Mark(s)

Your Answer:

Statistics, Biotechnology Statistics, Biotechnology
Probability, Microbiology Probability, Microbiology
Distributions, Physics Distributions, Physics
Statistics, Probability, Distributions Statistics, Probability, Distributions

What is the purpose of the `ActionEvent` class in Java event handling?

1 Mark(s)

Your Answer:

It represents an exception It represents an exception
It represents a listener interface It represents a listener interface
It represents an event source It represents an event source
It represents an action event generated by a component like a button

When any program, no matter how small, occupies an entire partition, this is known as:

1 Mark(s)

Your Answer:

Fragmentation Fragmentation
External fragmentation External fragmentation
Internal fragmentation Internal fragmentation
Prior fragmentation Prior fragmentation

Yellow pus in the wound is actually:

1 Mark(s)

Your Answer:

red blood cells red blood cells
plasma plasma
platelets platelets
infected white blood cells infected white blood cells

What does the term 'immutable' means in term of string objects?

1 Mark(s)

Your Answer:

We can modify characters included in the string
We cannot modify characters contained in the string
We cannot perform various operation of comparison, inserting, appending etc
None of the mentioned None of the mentioned

16-bit data bus is:

1 Mark(s)

Your Answer:

ISA ISA
PCI PCI
AGP AGP
USB USB

The HDFS file system is temporarily unavailable whenever the HDFS . . . . . . . . is down.

1 Mark(s)

Your Answer:

DataNode DataNode
NameNode NameNode
ActionNode ActionNode
None of the mentioned None of the mentioned

Substances which burn in air rapidly and catch fire easily are called:

1 Mark(s)

Your Answer:

flammable flammable
inflammable inflammable
both a and b both a and b
not flammable not flammable

Kubernetes is used for:

1 Mark(s)

Your Answer:

Container Orchestration Container Orchestration
Virtualization Virtualization
Coding Coding
Networking Networking

How do you check if a file exists in C?

1 Mark(s)

Your Answer:

Use the 'fileexist' function Use the 'fileexist' function
Check the return value of fopen() Check the return value of fopen()
Use the 'filestatus' variable Use the 'filestatus' variable
Use the 'fileopen' function Use the 'fileopen' function

In computer, process of converting analog signal into digital one is known as:

1 Mark(s)

Your Answer:

modulation modulation
data routing data routing
data sequencing data sequencing
demodulation demodulation

Choose the advantages of using generics?

1 Mark(s)

Your Answer:

Generics facilitate type safety Generics facilitate type safety
Generics facilitate improved performance and reduced code
Generics promote the usage of parameterized types
All of the mentioned All of the mentioned

The message digest needs to be:

1 Mark(s)

Your Answer:

public public
private private
kept secret kept secret
integrity integrity

A Blob URL can be created using which of the following function?

1 Mark(s)

Your Answer:

createURL() createURL()
createObjectURL() createObjectURL()
designURL() designURL()
URLCreation() URLCreation()

Which of the following are not done by Business Intelligence (BI) systems?

1 Mark(s)

Your Answer:

Analyze past and current activities only
Process and record transactions only Process and record transactions only
Both of the above are correct. Both of the above are correct.
Neither of the above is correct. Neither of the above is correct.

You may specify an object identifier with only one unique tag name.

1 Mark(s)

Your Answer:

True True
False False

What does the built-in function round() do in Python?

1 Mark(s)

Your Answer:

Rounds a floating-point number to the nearest integer
Returns the square of a number Returns the square of a number
Returns the absolute value of a number Returns the absolute value of a number
Converts a number to a string Converts a number to a string

Two or more atoms chemically combined together form a:

1 Mark(s)

Your Answer:

atom atom
molecule molecule
nucleus nucleus
atomic number atomic number

A numeric value can be treated as label value if ________ precedes it.

1 Mark(s)

Your Answer:

Apostrophe ( ‘ ) Apostrophe ( ‘ )
Exclamation ( ! ) Exclamation ( ! )
Hash ( # ) Hash ( # )
Tilde ( ~ ) Tilde ( ~ )

Is the output of the function abs() the same as that of the function math.fabs()?

1 Mark(s)

Your Answer:

sometimes sometimes
always always
never never
none of the mentioned none of the mentioned

Evaluating Your Answers

Web Development Mock Test 9 : Question 1 of 57