Network Protocols: A Comprehensive Guide for Beginners

Question 1

Which layer of the TCP/IP model handles routing data between different networks?

Accepted Answer

Internet Layer

Answer

Network Access Layer

Answer

Transport Layer

Answer

Application Layer

Question 2

What is the primary function of the Address Resolution Protocol (ARP)?

Accepted Answer

Resolving IP addresses to MAC addresses

Answer

Establishing connections between devices

Answer

Transferring data between devices

Answer

Detecting and correcting errors in data transmission

Question 3

Which transport layer protocol is commonly used for web browsing?

Accepted Answer

Transmission Control Protocol (TCP)

Answer

User Datagram Protocol (UDP)

Answer

Internet Protocol (IP)

Answer

Internet Control Message Protocol (ICMP)

Question 4

What is the purpose of a network interface card (NIC)?

Accepted Answer

Connecting a device to a network

Answer

Managing network traffic

Answer

Storing data on the network

Answer

Providing network security

Question 5

What is the primary purpose of a subnet mask?

Accepted Answer

Dividing a network into smaller subnetworks

Answer

Identifying the default gateway of a network

Answer

Assigning IP addresses to specific devices

Answer

Protecting the network from unauthorized access

Question 6

What is the key difference between a network protocol and a standard?

Accepted Answer

A protocol defines communication rules, while a standard specifies technology requirements.

Answer

A protocol is a physical device, while a standard is a set of guidelines.

Answer

A protocol is a temporary agreement, while a standard is a permanent agreement.

Answer

There is no difference between a protocol and a standard.

Question 7

What is the primary purpose of a MAC address?

Accepted Answer

To uniquely identify a host device on the network

Answer

To route data packets across the internet

Answer

To encrypt data before transmission

Answer

To store user credentials

Question 8

Which protocol is commonly used to transfer files over the internet?

Accepted Answer

FTP

Answer

HTTP

Answer

SMTP

Answer

Telnet

Question 9

What is the role of a subnet mask?

Accepted Answer

To specify which parts of an IP address represent the network and host portions

Answer

To divide a network into smaller segments

Answer

To filter incoming traffic

Answer

To provide error correction for data transmission

Question 10

Which type of routing protocol uses distributed algorithms to determine the best path for data transmission?

Accepted Answer

Dynamic

Answer

Static

Answer

Gateway

Answer

Bridged

Question 11

Which network topology connects devices in a continuous loop, with data flowing in one direction?

Accepted Answer

Ring

Answer

Bus

Answer

Star

Answer

Mesh

Question 12

Explain how the encapsulation process in network protocols contributes to efficient and reliable data transmission in a network.

Accepted Answer

Encapsulation adds headers and trailers to data packets, providing crucial information for routing, error detection, and synchronization.

Answer

Encapsulation reduces the size of data packets, optimizing bandwidth utilization.

Answer

Encapsulation is limited to the transport layer of the TCP/IP model.

Answer

Encapsulation has no impact on data transmission performance or reliability.

Question 13

Which of the following is NOT a characteristic of the TCP protocol?

Accepted Answer

Broadcast

Answer

Connection-oriented

Answer

Reliable

Answer

Flow control

Question 14

What is the primary purpose of the DNS protocol?

Accepted Answer

To translate domain names into IP addresses

Answer

To transfer files between computers

Answer

To route packets through a network

Answer

To provide security for network communications

Question 15

Which of the following protocols is connectionless?

Accepted Answer

UDP

Answer

TCP

Answer

FTP

Answer

HTTP

Question 16

What is the primary function of a firewall in a computer network?

Accepted Answer

To block unauthorized access to the network

Answer

To improve the speed of the network

Answer

To connect different networks together

Answer

To provide encryption for data transmission

Question 17

What is a primary role of a router?

Accepted Answer

To connect different networks together

Answer

To manage network traffic

Answer

To translate domain names into IP addresses

Answer

To provide security for network communications

Question 18

What is the purpose of the subnet mask in an IP address?

Accepted Answer

To determine the network portion of an IP address

Answer

To determine the host portion of an IP address

Answer

To translate IP addresses into domain names

Answer

To provide security for network communications

Question 19

Which network protocol is responsible for routing data packets across the Internet?

Accepted Answer

IP (Internet Protocol)

Answer

TCP (Transmission Control Protocol)

Answer

HTTP (Hypertext Transfer Protocol)

Answer

UDP (User Datagram Protocol)

Question 20

Which protocol is used by a web server to deliver web pages to clients?

Accepted Answer

HTTP (Hypertext Transfer Protocol)

Answer

FTP (File Transfer Protocol)

Answer

DNS (Domain Name System)

Answer

SMTP (Simple Mail Transfer Protocol)

Question 21

What is the primary function of TCP (Transmission Control Protocol)?

Accepted Answer

Ensure reliable and ordered delivery of data packets.

Answer

Translate domain names into IP addresses.

Answer

Route data packets across the Internet.

Question 22

A network administrator intends to monitor network traffic and identify potential security threats. Which protocol is most commonly used for this purpose?

Accepted Answer

SNMP (Simple Network Management Protocol)

Answer

DHCP (Dynamic Host Configuration Protocol)

Answer

FTP (File Transfer Protocol)

Answer

Telnet (Remote Login Protocol)

Question 23

Which protocol provides secure communication over the Internet, often used for online banking and shopping?

Accepted Answer

HTTPS (Hypertext Transfer Protocol Secure)

Answer

FTP (File Transfer Protocol)

Answer

Telnet (Remote Login Protocol)

Answer

SMTP (Simple Mail Transfer Protocol)

Question 24

Which of the following is NOT a characteristic of a network protocol?

Accepted Answer

It guarantees data delivery without errors.

Answer

It specifies the rules for communication.

Answer

It ensures compatibility between devices.

Answer

It defines the format of data.

Question 25

A user wishes to transfer a large file securely across a network. Which protocol is the most appropriate for this task?

Accepted Answer

SFTP (Secure File Transfer Protocol)

Answer

SMTP (Simple Mail Transfer Protocol)

Answer

DNS (Domain Name System)

Answer

HTTP (Hypertext Transfer Protocol)