Top interview questions | Practice Quiz, MCQ Questions | Solutions for interview

Question 1

Which layer of the OSI model is responsible for routing?

1

Application Layer

2

Network Layer

3

Data Link Layer

4

Transport Layer

Question 2

Which of the following is the main function of the OSI model?

1

To break down complex network operations into manageable layers

2

To ensure that devices communicate

3

To define the way a network operates

4

To manage network resources

Question 3

What is the purpose of a subnet mask?

1

To divide an IP address into network and host portions

2

To identify the device’s physical address

3

To provide encryption for communication

4

To determine the gateway IP address

Question 4

What protocol is used for secure communication over the internet?

1

FTP

2

HTTP

3

SMPT

4

HTTPS

Question 5

Which of the following is an example of a Layer 2 device?

1

Switch

2

Gateway

3

Router

4

Hub

Question 6

Which type of IP address is used to communicate with all devices in a network?

1

Broadcast

2

UniCast

3

MultiCast

4

Anycast

Question 7

Which of the following is used to assign IP addresses to devices automatically on a network?

1

DHCP

2

NAT

3

ARP

4

DNS

Question 8

Which of the following protocols is used for email retrieval?

1

SMTP

2

HTTP

3

IMAP

4

FTP

Question 9

What is the purpose of the ARP protocol in networking?

1

To control the flow of data packets between devices

2

To translate IP addresses to MAC addresses

3

To establish secure communication between devices

4

To convert domain names to IP addresses

Question 10

What is the main purpose of the DNS (Domain Name System)?

1

To resolve domain names to IP addresses

2

To transfer files over the network

3

To send emails between servers

4

To encrypt data between clients and servers

Question 11

Which protocol is used to establish a secure connection between a web browser and a web server?

1

SSL/TLS

2

IMAP

3

SSH

4

FTP

Question 12

Which of the following is true about IPv6 addresses?

1

They are 128 bits in length

2

They are written in decimal format

3

They are 32 bits in length

4

They are backward compatible with IPv4

Question 13

Which of the following types of IP address is used to communicate with a single device on the network?

1

Multicast

2

Anycast

3

Broadcast

4

Unicast

Question 14

What does the term "subnetting" refer to in networking?

1

Converting domain names to IP addresses

2

Providing encryption for secure communication

3

Assigning IP addresses dynamically

4

Dividing a network into smaller networks

Question 15

What does the "ping" command do in networking?

1

It assigns an IP address to a device

2

It checks the availability of a device in the network

3

It transfers files between two devices

4

It encrypts data between devices

Question 16

Which of the following is a Layer 3 device that forwards packets based on IP addresses?

1

Bridge

2

Switch

3

Hub

4

Router

Question 17

Which type of address is used to uniquely identify a device on a network at Layer 2 of the OSI model?

1

MAC address

2

Hostname

3

Port Number

4

IP address

Question 18

Which of the following is an example of a connectionless protocol?

1

FTP

2

TCP

3

UDP

4

HTTP

Question 19

Which of the following describes a "collision domain" in networking?

1

A device used to route data between two different networks

2

A device used to boost the network signal

3

A set of devices that share the same IP address

4

A network segment where data packets may collide

Question 20

Which of the following protocols operates at the transport layer of the OSI model?

1

IP

2

DNS

3

TCP

4

ARP

Question 21

Which of the following is a private IP address range?

1

192.168.0.0 to 192.168.255.255

2

10.0.0.0 to 10.255.255.255

3

172.16.0.0 to 172.31.255.255

4

All of the above

Question 22

How many layers are there in the OSI model?

1

7

2

6

3

5

4

8

Question 23

Which of the following is the main function of the Data Link Layer in the OSI model?

1

Routing of packets

2

Data encryption

3

Provides end-to-end communication

4

Error detection and correction

Question 24

Which layer of the OSI model is responsible for end-to-end communication and error recovery?

1

Session Layer

2

Data Link Layer

3

Network Layer

4

Transport Layer

Question 25

Which layer of the OSI model is responsible for logical addressing, routing and forwarding of data packets?

1

Data Link Layer

2

Network Layer

3

Transport Layer

4

Session Layer

Question 26

Which of the following protocols operates at the Application Layer of the OSI model?

1

Ethernet

2

FTP

3

TCP

4

IP

Question 27

Which of the following is NOT a function of the Presentation Layer in the OSI model?

1

Routing of packets

2

Data formatting

3

Data compression

4

Encryption and decryption

Question 28

At which layer of the OSI model does the IP protocol operate?

1

Transport Layer

2

Network Layer

3

Application Layer

4

Data Link Layer

Question 29

Which layer of the OSI model is responsible for physical addressing and error detection during data transmission?

1

Session Layer

2

Data Link Layer

3

Network Layer

4

Transport Layer

Question 30

Which of the following is a device used in the Data Link Layer of the OSI model?

1

Gateway

2

Hub

3

Switch

4

Router