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

Question 1

Which layer of the OSI model is responsible for routing?

1

Network Layer

2

Transport Layer

3

Data Link Layer

4

Application Layer

Question 2

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

1

To manage network resources

2

To ensure that devices communicate

3

To break down complex network operations into manageable layers

4

To define the way a network operates

Question 3

What is the purpose of a subnet mask?

1

To determine the gateway IP address

2

To provide encryption for communication

3

To identify the device’s physical address

4

To divide an IP address into network and host portions

Question 4

What protocol is used for secure communication over the internet?

1

SMPT

2

HTTPS

3

HTTP

4

FTP

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

MultiCast

2

Broadcast

3

UniCast

4

Anycast

Question 7

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

1

NAT

2

DHCP

3

ARP

4

DNS

Question 8

Which of the following protocols is used for email retrieval?

1

FTP

2

SMTP

3

HTTP

4

IMAP

Question 9

What is the purpose of the ARP protocol in networking?

1

To convert domain names to IP addresses

2

To translate IP addresses to MAC addresses

3

To establish secure communication between devices

4

To control the flow of data packets between devices

Question 10

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

1

To transfer files over the network

2

To send emails between servers

3

To encrypt data between clients and servers

4

To resolve domain names to IP addresses

Question 11

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

1

SSL/TLS

2

SSH

3

IMAP

4

FTP

Question 12

Which of the following is true about IPv6 addresses?

1

They are 32 bits in length

2

They are written in decimal format

3

They are backward compatible with IPv4

4

They are 128 bits in length

Question 13

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

1

Unicast

2

Anycast

3

Broadcast

4

Multicast

Question 14

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

1

Dividing a network into smaller networks

2

Assigning IP addresses dynamically

3

Providing encryption for secure communication

4

Converting domain names to IP addresses

Question 15

What does the "ping" command do in networking?

1

It checks the availability of a device in the network

2

It transfers files between two devices

3

It encrypts data between devices

4

It assigns an IP address to a device

Question 16

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

1

Bridge

2

Switch

3

Router

4

Hub

Question 17

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

1

Port Number

2

MAC address

3

IP address

4

Hostname

Question 18

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

1

HTTP

2

UDP

3

FTP

4

TCP

Question 19

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

1

A set of devices that share the same IP address

2

A device used to route data between two different networks

3

A device used to boost the network signal

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

ARP

2

TCP

3

IP

4

DNS

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

6

2

7

3

8

4

5

Question 23

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

1

Provides end-to-end communication

2

Data encryption

3

Routing of packets

4

Error detection and correction

Question 24

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

1

Data Link Layer

2

Session 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

Network Layer

2

Transport Layer

3

Session Layer

4

Data Link Layer

Question 26

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

1

TCP

2

FTP

3

IP

4

Ethernet

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

Data Link Layer

2

Transport Layer

3

Network Layer

4

Application Layer

Question 29

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

1

Session Layer

2

Transport Layer

3

Network Layer

4

Data Link Layer

Question 30

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

1

Router

2

Switch

3

Hub

4

Gateway