Java Programming Mock Test 3

What will be the output of the following C code? #include <stdio.h> int main() { int i = 10; void *p = &i; printf("%d\n", (int)*p); return 0; }

1 Mark(s)

Your Answer:

Compile time error Compile time error
Segmentation fault/runtime crash Segmentation fault/runtime crash
10 10
Undefined behaviour Undefined behaviour

The method of communication in which transmission takes place in both directions, but only one direction at a time is called

1 Mark(s)

Your Answer:

Simplex Simplex
Four wire circuit Four wire circuit
Full Duplex Full Duplex
Half Duplex Half Duplex

Polymorphism is also possible in C language. Is it correct?

1 Mark(s)

Your Answer:

Yes Yes
No No
both A & B both A & B
none of these none of these

What is the syntax for a single-line comment in C++?

1 Mark(s)

Your Answer:

-- --
# #
// //
/* */ /* */

Which of the following is an application of linked lists?

1 Mark(s)

Your Answer:

Implementing stacks Implementing stacks
Implementing queues Implementing queues
Both A and B Both A and B
None of the above None of the above

What will be the output of the following Python code? class A: def test(self): print("test of A called") class B(A): def test(self): print("test of B called") super().test() class C(A): def test(self): print("test of C called") super().test() class D(B,C): def test2(self): print("test of D called") obj=D() obj.test()

1 Mark(s)

Your Answer:

test of B called test of C called test of A called
test of C called test of B called test of C called test of B called
test of B called test of C called test of B called test of C called
Error, all the three classes from which D derives has same method test()

Which of the following is not essential component to perform a mail merge operation?

1 Mark(s)

Your Answer:

Main document Main document
Data source Data source
Merge fields Merge fields
Word fields Word fields

What will be the output of the following R code? > x <- 1:3 > y <- 10:12 > rbind(x, y)

1 Mark(s)

Your Answer:

[,1] [,2] [,3] x 1 2 3 y 10 11 12 [,1] [,2] [,3] x 1 2 3 y 10 11 12
[,1] [,2] [,3] x 1 2 3 y 10 11 [,1] [,2] [,3] x 1 2 3 y 10 11
[,1] [,2] [,3] x 1 2 3 y 4 5 6 [,1] [,2] [,3] x 1 2 3 y 4 5 6
[,4] [,5] [,3] x 1 3 5 y 4 5 2 [,4] [,5] [,3] x 1 3 5 y 4 5 2

In a computer, ALU can performs both arithmetic and:

1 Mark(s)

Your Answer:

logic operation logic operation
logging operation logging operation
loading operation loading operation
learning operation learning operation

You can check the conditions against __________ when applying conditional formatting

1 Mark(s)

Your Answer:

Cell value Cell value
Formula Formula
Both of above Both of above
None of above None of above

What traversal over trie gives the lexicographical sorting of the set of the strings?

1 Mark(s)

Your Answer:

postorder postorder
preorders preorders
inorder inorder
level order level order

What is the significance of the Hadoop OutputFormat?

1 Mark(s)

Your Answer:

Manage storage layer Manage storage layer
Manage computation resources Manage computation resources
Execute MapReduce jobs Execute MapReduce jobs
Manage Hadoop ecosystem tools Manage Hadoop ecosystem tools

What will be the output of the following PHP code ? <?php $x = 1; $y = 2; if (++$x == $y++) { echo "true ", $y, $x; } ?>

1 Mark(s)

Your Answer:

no output no output
true 23 true 23
true 22 true 22
true 33 true 33

Which of the following items are not necessary for client/server?

1 Mark(s)

Your Answer:

Assure that tools will connect with middleware.
Understand the requirements. Understand the requirements.
Determine network bandwidth capabilities.
Include the use of a file server. Include the use of a file server.

The process to process delivery of the entire message is the responsibility of the layer:

1 Mark(s)

Your Answer:

Session layer Session layer
Transport layer Transport layer
Presentation layer Presentation layer
Physical layer Physical layer

In MS Excel, a formula that looks for a value in the leftmost column of a table and then returns a value in the same row for a specific column is called:

1 Mark(s)

Your Answer:

Horizontal Lookup Horizontal Lookup
Vertical Lookup Vertical Lookup
Average Average
None of these None of these

Which of the following is not the way to maintain state ?

1 Mark(s)

Your Answer:

Request object Request object
Hidden fields Hidden fields
View state View state
Cookies Cookies

Boolean comparison operators are also called:

1 Mark(s)

Your Answer:

Arithmetic Operators Arithmetic Operators
Relational Operators Relational Operators
Bitwise Operators Bitwise Operators
Logical operators Logical operators

Which of the following statements about exception handling in C++ is correct?

1 Mark(s)

Your Answer:

It is an alternative to error codes It is an alternative to error codes
It is faster and more efficient than error codes
It is used only for compile-time errors It is used only for compile-time errors
It cannot handle runtime errors It cannot handle runtime errors

What would be the output for the following Turbo C code? #include<stdio.h> void main() { int a[]={ 1, 2, 3, 4, 5 }, *p; p=a; ++*p; printf("%d ", *p); p += 2; printf("%d", *p); }

1 Mark(s)

Your Answer:

2 4 2 4
3 4 3 4
2 2 2 2
2 3 2 3
3 3 3 3

Which of the following is a risk associated with using hypertext in web applications?

1 Mark(s)

Your Answer:

Loss of sense of locality and direction Loss of sense of locality and direction
Cognitive overload for users Cognitive overload for users
All of the mentioned All of the mentioned
None of the mentioned None of the mentioned

Which technology is used to make web pages interactive and dynamic by updating parts of the page without a full page reload?

1 Mark(s)

Your Answer:

HTML HTML
CSS CSS
AJAX AJAX
None of these None of these

Interferometer was first introduced in:

1 Mark(s)

Your Answer:

1881 1881
1850 1850
1991 1991
1920 1920

Light is absorbed by some substances, these substances are known as:

1 Mark(s)

Your Answer:

pigment pigment
surface surface
vein vein
Salk Salk

Which of the following languages is more suited to a structured program?

1 Mark(s)

Your Answer:

PL/1 PL/1
FORTRAN FORTRAN
BASIC BASIC
PASCAL PASCAL

Natural cellulose is aggregated into:

1 Mark(s)

Your Answer:

fine microfibrils fine microfibrils
rough microfibrils rough microfibrils
rigidity rigidity
flexibility flexibility

Which one of the following is the default PHP session name?

1 Mark(s)

Your Answer:

PHPSESSID PHPSESSID
PHPSESID PHPSESID
PHPSESSIONID PHPSESSIONID
PHPIDSESS PHPIDSESS

What will be the output of the following C code? #include <stdio.h> #define MIN 0 #if defined(MIN) + defined(MAX) #define MAX 10 #endif int main() { printf("%d %d\n", MAX, MIN); return 0; }

1 Mark(s)

Your Answer:

10 0 10 0
Compile time error Compile time error
Undefined behaviour Undefined behaviour
Somegarbagevalue 0 Somegarbagevalue 0

In dplyr, what is the purpose of the %>% operator (pipe operator)?

1 Mark(s)

Your Answer:

Performs bitwise OR operation Performs bitwise OR operation
Chains together a sequence of operations
Separates elements in a character vector
Concatenates strings Concatenates strings

Which one of the following is considered a type of cloud computing model involving the three different service models together?

1 Mark(s)

Your Answer:

CPI CPI
SIP SIP
SPI SPI
All of the mentioned All of the mentioned

Which is not a Mozilla value?

1 Mark(s)

Your Answer:

caret caret
resizer resizer
listbox listbox
scrollbar scrollbar

What is the purpose of the 'memset' function in C?

1 Mark(s)

Your Answer:

To allocate memory To allocate memory
To set memory to zero To set memory to zero
To find memory leaks To find memory leaks
To copy memory To copy memory

Which data structure is used for implementing a FIFO branch and bound strategy?

1 Mark(s)

Your Answer:

stack stack
queue queue
array array
linked list linked list

In a table, ______(s) are displayed in the order in which they were entered. Most often this order is not useful.

1 Mark(s)

Your Answer:

formula formula
format format
layout layout
record record

In java, jar stands for_____.

1 Mark(s)

Your Answer:

Java Archive Runner Java Archive Runner
Java Application Resource Java Application Resource
Java Application Runner Java Application Runner
None of the above None of the above

In Excel which key is used to select entire row?

1 Mark(s)

Your Answer:

Ctrl+Space Ctrl+Space
Shift+Space Shift+Space
Alt+Space Alt+Space
None of these None of these

What is the primary difference between Bottom-Up and Top-Down approaches in Dynamic Programming?

1 Mark(s)

Your Answer:

Bottom-Up builds the solution iteratively from base cases; Top-Down uses recursion with memoization.
Bottom-Up uses recursion; Top-Down builds solutions iteratively.
Bottom-Up is used for sorting; Top-Down is for searching.
There is no difference between them. There is no difference between them.

. . . . . . . . maps input key/value pairs to a set of intermediate key/value pairs.

1 Mark(s)

Your Answer:

Mapper Mapper
Reducer Reducer
Both Mapper and Reducer Both Mapper and Reducer
None of the mentioned None of the mentioned

What will be the output of the following C# code? static void Main(string[] args) { int x = 10; do { Console.WriteLine( x++); } while(Convert.ToBoolean(5) && Convert.ToBoolean(4) && Convert.ToBoolean(3) && Convert.ToBoolean(2) && Convert.ToBoolean(1) && Convert.ToBoolean(0)); Console.ReadLine(); }

1 Mark(s)

Your Answer:

13 13
15 15
11 11
10 10

The shift ciphers sometimes referred to as the:

1 Mark(s)

Your Answer:

Caesar cipher Caesar cipher
Julia cipher Julia cipher
plain cipher plain cipher
XOR cipher XOR cipher

Scalar subqueries are also useful in SQL:

1 Mark(s)

Your Answer:

Insertion statements Insertion statements
Deletion statement Deletion statement
Update statements Update statements
Retrieval statement Retrieval statement

Wireless communication was initiated in:

1 Mark(s)

Your Answer:

1880 1880
1885 1885
1890 1890
1895 1895

Which method is used to remove a key-value pair from a dictionary?

1 Mark(s)

Your Answer:

pop() pop()
remove() remove()
delete() delete()
discard() discard()

Internet users use the:

1 Mark(s)

Your Answer:

high-level data link control high-level data link control
password authentication protocol password authentication protocol
multipoint protocol multipoint protocol
point to point protocol point to point protocol

Which Ruby tool is commonly used for formatting code according to community style guides?

1 Mark(s)

Your Answer:

RuboCop RuboCop
RSpec RSpec
Pry Pry
Guard Guard

Initial Value Problems 'IVP' are solved without first determing a general solution in:

1 Mark(s)

Your Answer:

differentiation differentiation
integration integration
Laplace transform Laplace transform
none of above none of above

Evaluating Your Answers

Java Programming Mock Test 3 : Question 1 of 46