Algorithms Mock Test 4 - Online MCQ Exam

In the function malloc(), each byte of allocated space is initialized to zero.

1 Mark(s)

Your Answer:

True True
False False

How many predefined exceptions does SPL provide access to?

1 Mark(s)

Your Answer:

13 13
14 14
15 15
16 16

What is the output of ["apple", "banana", "cherry"].join(", ") in Ruby?

1 Mark(s)

Your Answer:

"apple, banana, cherry" "apple, banana, cherry"
["apple", "banana", "cherry"] ["apple", "banana", "cherry"]
"applebanana cherry" "applebanana cherry"
["apple, banana, cherry"] ["apple, banana, cherry"]

Perihelion of Moon about the Sun is:

1 Mark(s)

Your Answer:

147.1x106 Km 147.1x106 Km
107.5x106 Km 107.5x106 Km
0.363x106 Km 0.363x106 Km
46.0x106 Km 46.0x106 Km

Which of the following is not necessary for standalone computer? RAM , LAN Card ,Operating System , None of these

1 Mark(s)

Your Answer:

RAM RAM
LAN Card LAN Card
Operating System Operating System
None of these None of these

What is the purpose of the 'std::queue' container adapter in C++ STL?

1 Mark(s)

Your Answer:

To provide first-in, first-out (FIFO) access to elements
To provide last-in, first-out (LIFO) access to elements
To store elements in a sorted sequence To store elements in a sorted sequence
To store elements in a hash table To store elements in a hash table

Which option is used to copy formatting from one place and apply it to another?

1 Mark(s)

Your Answer:

Copy Copy
Copy formatter Copy formatter
Format painter Format painter
Formatting Formatting

An SQL view is said to be updatable, if the from clause has:

1 Mark(s)

Your Answer:

Only 1 database relation Only 1 database relation
Only 2 database relation Only 2 database relation
Only 3 database relation Only 3 database relation
Only 4 database relation Only 4 database relation

Computer output which can be represent on screen and is not tangible is called:

1 Mark(s)

Your Answer:

software software
window window
softcopy softcopy
desktop desktop

What is the correct postfix expression for the following expression? a+b*(c^d-e)^(f+g*h)-i

1 Mark(s)

Your Answer:

abc^de-fg+*^*+i- abc^de-fg+*^*+i-
abcde^-fg*+*^h*+i- abcde^-fg*+*^h*+i-
abcd^e-fgh*+^*+i- abcd^e-fgh*+^*+i-
ab^-dc*+ef^gh*+i- ab^-dc*+ef^gh*+i-

Choose the most appropriate statement about the code enum color:byte { yellow = 500, green = 1000, pink = 1300 } :

1 Mark(s)

Your Answer:

byte value cannot be assigned to enum elements
num elements should always take successive values
enum must always be of int type enum must always be of int type
When the valid range of byte exceeds, the compiler will report an error

Monitor device of computer system is an:

1 Mark(s)

Your Answer:

input input
output output
I/O I/O
memory memory

Which of the following is true about the head pointer in a linked list?

1 Mark(s)

Your Answer:

It always points to the last node It always points to the last node
It is null if the list is empty It is null if the list is empty
It always points to the middle node It always points to the middle node
It always points to the second node It always points to the second node

Collection of characters, numbers and symbols is?

1 Mark(s)

Your Answer:

Data Data
Keyboard Keyboard
Monitor Monitor
Ram Ram

What will be the output of the following C# code? static void Main(string[] args) { int const p = 0; switch (3 * 5 / 6) { case p: Console.WriteLine("A"); break; case p * 1: Console.WriteLine("B"); break; case p - 2: Console.WriteLine("C"); break; default: Console.WriteLine("D"); } }

1 Mark(s)

Your Answer:

A A
B B
C C
Compile time error Compile time error

What is the purpose of the 'sizeof' operator in C?

1 Mark(s)

Your Answer:

Calculate square root Calculate square root
Determine size Determine size
Perform division Perform division
Convert to string Convert to string

What does the following declaration mean? int (*ptr)[10];

1 Mark(s)

Your Answer:

ptr is array of pointers to 10 integers ptr is array of pointers to 10 integers
ptr is a pointer to an array of 10 integers
ptr is an array of 10 integers ptr is an array of 10 integers
ptr is an pointer to array ptr is an pointer to array

Which among the following concept is correct if a user using the concept of encapsulation in a code?

1 Mark(s)

Your Answer:

The modification of the code can be additional overhead
Member functions can be used for modifying the data type of data members
The data type of data member cannot be modified.
The data type of the data member can be easily modified without modifying any other code

Which of following is a web browser?

1 Mark(s)

Your Answer:

Paint and Database Paint and Database
Word and PowerPoint Word and PowerPoint
Fire fox and Chrome Fire fox and Chrome
None of these None of these

A set of processes is deadlock if ?

1 Mark(s)

Your Answer:

each process is blocked and will remain so forever
each process is terminated each process is terminated
all processes are trying to kill each other
None of these None of these

The browser _____keep a list of web pages you have visited in the current session?

1 Mark(s)

Your Answer:

History History
Cache Cache
Trail Trail
None None

Hour glass was used in past days to know:

1 Mark(s)

Your Answer:

time time
length length
mass mass
volume volume

All attribute declarations begin with the keyword ____________ followed by the element name, attribute name, attribute type, and default data information.

1 Mark(s)

Your Answer:

XML XML
SGML SGML
ATTLIST ATTLIST
None of the mentioned None of the mentioned

Which statements among following are correct?

1 Mark(s)

Your Answer:

We can derive a class from a base class even if source code of base class not available
Multiple inheritance is different from multiple levels of inheritance
It is legal to make objects of one class as members of another class
All of the mentioned All of the mentioned

In Network Address Translation (NAT), the range of addresses for private networks from 10.0.0.0 to 10.255.255.255 makes a total of:

1 Mark(s)

Your Answer:

224 224
225 225
226 226
228 228

What is polymorphism in Ruby?

1 Mark(s)

Your Answer:

The ability for objects of different classes to be treated as objects of a common superclass
The ability to hide the implementation details of a class
The ability to restrict access to certain methods
The ability to create objects from a class

In HTML Audio/Video DOM, __________ sets or returns whether the audio/video should be loaded when the page loads.

1 Mark(s)

Your Answer:

preload preload
autoplay autoplay
buffered buffered
controller controller

Which of the following is known as the step by step procedure to solve a problem?

1 Mark(s)

Your Answer:

Graph Graph
Table Table
Algorithm Algorithm
None of the above None of the above

In Ruby, what is the purpose of the `case` statement when combined with `when` clauses?

1 Mark(s)

Your Answer:

To define a block of code that executes when a condition is met
To iterate over a collection of elements
To perform mathematical calculations To perform mathematical calculations
To define a class To define a class

What does the command 'ipconfig /release' do?

1 Mark(s)

Your Answer:

Renews IP Renews IP
Releases IP Releases IP
Shows IP Shows IP
Tests IP Tests IP

SQL was developed, as part of the System R project in the early:

1 Mark(s)

Your Answer:

1960s 1960s
1970s 1970s
1980s 1980s
1990s 1990s

How do you find the difference in seconds between two Time objects in Ruby?

1 Mark(s)

Your Answer:

Use the diff method with the seconds option
Use the difference method with the seconds option
Subtract one Time object from another and convert the result to seconds
Use the delta method with the seconds option

In the token passing method, the stations are organized in the logical:

1 Mark(s)

Your Answer:

ring ring
bus bus
star star
hybrid hybrid

Which is the property of a Window object that holids the name of the frame?

1 Mark(s)

Your Answer:

name name
title title
description description
none of the mentioned none of the mentioned

Evaluating Your Answers

Algorithms Mock Test 4 : Question 1 of 34