GATE Mock Test 1 - Online MCQ Exam

A combination of an encryption algorithm and a decryption algorithm is called a:

1 Mark(s)

Your Answer:

plain text plain text
cipher cipher
original text original text
shift cipher shift cipher

How Exception handling is implemented in the C++ program?

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Your Answer:

Using Exception keyword Using Exception keyword
Using try-catch block Using try-catch block
Using Exception block Using Exception block
Using Error handling schedules Using Error handling schedules

How to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?

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Your Answer:

Thicknet coax Thicknet coax
Thinnet coax Thinnet coax
Category 5 UTP cable Category 5 UTP cable
Fiber-optic cable Fiber-optic cable

Baud rate is the number of:

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Your Answer:

signal elements per second signal elements per second
bits per second bits per second
frames per second frames per second
none none

In a Red-Black tree, what does the term "splaying" refer to?

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Your Answer:

Moving a node to the root to improve access times.
Rotating nodes to maintain balance. Rotating nodes to maintain balance.
Re-coloring nodes to restore properties.
Inserting nodes while maintaining balance.

In OSI model, when data is sent from device A to device B, the fifth layer to receive data at B is

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Your Answer:

Session layer Session layer
application layer application layer
transport layer transport layer
None None

A variable (often denoted by y) whose value depends on that of another is:

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Your Answer:

Independent variable Independent variable
Dependent variable Dependent variable
Controlled variable Controlled variable
Discrete variable Discrete variable

What data structure would you use for efficiently managing a set of time-ordered events?

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Your Answer:

Queue Queue
Stack Stack
Array Array
Priority Queue Priority Queue

What will be the output of the following PHP code? <?php $str = "Hello! My name is Cameron Fox. Coffee?" $find = array('/is/','/coffee/'); $replace = array('/was/','/tea/'); echo preg_replace ($find, $replace, $str); ?>

1 Mark(s)

Your Answer:

Hello! My name was Cameron Fox. tea? Hello! My name was Cameron Fox. tea?
Hello! My name is Cameron Fox. tea? Hello! My name is Cameron Fox. tea?
Hello! My name is Cameron Fox. Coffee? Hello! My name is Cameron Fox. Coffee?
Hello! My name was Cameron Fox. Coffee? Hello! My name was Cameron Fox. Coffee?

What will happen when the exception is not caught in the program?

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Your Answer:

error error
program will execute program will execute
block of that code will not execute block of that code will not execute
program will execute & displays wrong output

Which of the following is a Change Case in MS-Word ?

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Your Answer:

Sentence Case Sentence Case
Lowercase Lowercase
Toggle Case Toggle Case
All of these All of these

Day-to-day transactions at departmental stores, banks, reservation counter and other businesses are all dependent upon computer:

1 Mark(s)

Your Answer:

softwares softwares
systems systems
programs programs
networks networks

Consider the following snippet code var string1 = ”123”; var intvalue = 123; alert( string1 + intvalue );

1 Mark(s)

Your Answer:

123246 123246
246 246
123123 123123
Exception Exception

Light atoms can move with the help of:

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Your Answer:

strong energy strong energy
atom's energy atom's energy
surrounding's energy surrounding's energy
force force

What is the purpose of using unions in C++?

1 Mark(s)

Your Answer:

To group related data together To group related data together
To define loops in the program To define loops in the program
To save memory space To save memory space
To represent true/false values To represent true/false values

Memory space in a computer is used to:

1 Mark(s)

Your Answer:

hold applications hold applications
hold information temporarily hold information temporarily
provide additional speed when needed provide additional speed when needed
all of these all of these

Which method is used to send a message over a UDP connection in C#?

1 Mark(s)

Your Answer:

Connect() Connect()
Accept() Accept()
Listen() Listen()
Send() Send()

What will be the output of the following C code? #include <stdio.h> int i; int main() { extern int i; if (i == 0) printf("scope rules\n"); }

1 Mark(s)

Your Answer:

scope rules scope rules
Compile time error due to multiple declaration
Compile time error due to not defining type in statement extern i
Nothing will be printed as value of i is not zero because i is an automatic variable

What happens if a derived class redefines a method that is already defined in its base class in C++?

1 Mark(s)

Your Answer:

Compilation error Compilation error
Both methods are available separately Both methods are available separately
Method in the derived class overrides the base class method
Method in the base class overrides the derived class method

What is the result of 7 << 2 ?

1 Mark(s)

Your Answer:

28 28
7 7
14 14
4 4

Apache . . . . . . . . is a serialization framework that produces data in a compact binary format.

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Your Answer:

Oozie Oozie
Impala Impala
kafka kafka
Avro Avro

How do you define a range in Ruby?

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Your Answer:

range = "start..end" range = "start..end"
range = start..end range = start..end
range = Range.new("start", "end") range = Range.new("start", "end")
range = start.to(end) range = start.to(end)

In Java, can a "catch" block catch exceptions of a superclass type?

1 Mark(s)

Your Answer:

Yes, a "catch" block can catch exceptions of a superclass type
No, a "catch" block can only catch exceptions of the exact type
Only if the superclass is marked as "final"
Only if the subclass is marked as "static"

Replication should be used when which of the following exist?

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Your Answer:

When transmission speeds and capacity in a network prohibit frequent refreshing of large tables.
When using many nodes with different operating systems and DBMSs and database designs.
The application's data can be somewhat out-of-date.
All of the above. All of the above.

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

1 Mark(s)

Your Answer:

To close the file To close the file
To reset the file pointer to the beginning
To delete the file To delete the file
To check if the file is empty To check if the file is empty

Iron, cobalt and nickel are metals which are:

1 Mark(s)

Your Answer:

non-magnetic non-magnetic
magnetic magnetic
insulator insulator
none of them none of them

The Facebook diplomacy was coined in _____?

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Your Answer:

2012 2012
2008 2008
2004 2004
2000 2000

To copy a picture of the screen to the clipboard use?

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Your Answer:

Print screen key Print screen key
Alt key Alt key
Both Both
Shift key Shift key

The successive discounts 20% and 15% are equal to a single discount of__________?

1 Mark(s)

Your Answer:

35% 35%
38% 38%
32% 32%
29% 29%
None of these None of these

Integrity constraints can also be added to an existing relation by using the command:

1 Mark(s)

Your Answer:

Modify table Modify table
Change Table Change Table
Define table Define table
Alter table Alter table

The charge on beta particle is________________?

1 Mark(s)

Your Answer:

1 1
-1 -1
+2 +2
-2 -2

For synchronization, the communication of a message between two processes implies some level of:

1 Mark(s)

Your Answer:

Descriptive Descriptive
Synchronized Synchronized
Synchronization Synchronization
Inscriptive Inscriptive

Quality of X-rays depends upon ____________ A-filament current B-accelerating voltage C-material of the target ?

1 Mark(s)

Your Answer:

A & B A & B
B & C B & C
A & C A & C
A B & C A B & C

Which among the following can be taken as the discrete object?

1 Mark(s)

Your Answer:

People People
Rational numbers Rational numbers
Integers Integers
All of the mentioned All of the mentioned

Three 6 faced dice are thrown together. The probability that all the three show the same number on them is -.

1 Mark(s)

Your Answer:

1/216 1/216
1/36 1/36
5/9 5/9
5/12 5/12

What is the role of the @staticmethod decorator in Python?

1 Mark(s)

Your Answer:

To define static variables To define static variables
To make a method callable without an instance
To add static typing to variables To add static typing to variables
To prevent method overriding To prevent method overriding

Consider a drop of rain water having mass 1g falling from a height of 1km. It hits the ground with a speed of 50 m/s. The work done by the resistive force of air is ($g=10$):

1 Mark(s)

Your Answer:

$-10 J$ $-10 J$
$-8.75 J$ $-8.75 J$
$8.75 J$ $8.75 J$
$-1.25 J$ $-1.25 J$

Wavelength of light in a medium depends on the:

1 Mark(s)

Your Answer:

index of refraction index of refraction
index of reflection index of reflection
index of incidence index of incidence
index of retardation index of retardation

The displacement of a particle is given by $x = a \cos(\omega t) + b \sin(\omega t)$. The motion is SHM with amplitude:

1 Mark(s)

Your Answer:

$\sqrt{a^2+b^2}$ $\sqrt{a^2+b^2}$
$a+b$ $a+b$
$(a+b)/2$ $(a+b)/2$
$\sqrt{ab}$ $\sqrt{ab}$

What is Oozie in the context of Hadoop?

1 Mark(s)

Your Answer:

A workflow scheduler for Hadoop jobs A workflow scheduler for Hadoop jobs
A distributed storage system A distributed storage system
A query language for Hadoop A query language for Hadoop
A data processing engine for Hadoop A data processing engine for Hadoop

What will be the output of the following C code? #include <stdio.h> struct student { char *c; struct student *point; }; void main() { struct student s; struct student *m = &s; printf("%d", sizeof(student)); }

1 Mark(s)

Your Answer:

Compile time error Compile time error
8 8
5 5
16 16

The equation θ = 1.22 λ/D was devised by_______________?

1 Mark(s)

Your Answer:

Newton Newton
Einstein Einstein
Raleigh Raleigh
Planks Planks

What is the purpose of the `@Path` annotation in JAX-RS (Java API for RESTful Web Services) applications?

1 Mark(s)

Your Answer:

To create JavaBeans To create JavaBeans
To execute SQL queries To execute SQL queries
To specify the base URI for a resource class or method
To define JavaBean properties To define JavaBean properties

What is the correct syntax to initialize bit-fields in an structure?

1 Mark(s)

Your Answer:

struct temp { unsigned int a : 1; }s; struct temp { unsigned int a : 1; }s;
struct temp { unsigned int a = 1; }s; struct temp { unsigned int a = 1; }s;
struct temp { unsigned float a : 1; }s;
None of the mentioned None of the mentioned

Which shortcut command is used to Reload the current page in Google Chrome?

1 Mark(s)

Your Answer:

F5 F5
Ctrl + r Ctrl + r
Both A and B are correct Both A and B are correct
None of the above None of the above

What does the zip method do in Ruby enumerators?

1 Mark(s)

Your Answer:

Removes duplicate elements from a collection
Applies a block of code to each element and returns a new collection
Reverses the order of elements in a collection
Combines elements from multiple collections into arrays

How do you establish a connection to an SQLite database using sqlite3?

1 Mark(s)

Your Answer:

connect("database.db") connect("database.db")
create_connection("database.db") create_connection("database.db")
sqlite_connect("database.db") sqlite_connect("database.db")
open_connection("database.db") open_connection("database.db")

The reverse of LED is______?

1 Mark(s)

Your Answer:

Diode Diode
Resistor Resistor
Photodiode Photodiode
Capacitor Capacitor

Evaluating Your Answers

GATE Mock Test 1 : Question 1 of 48