Computer Network Quizzes

 Here's a computer network quiz for you. Each question is followed by multiple-choice answers. Choose the correct option for each question.

(You will find the answers to the questions at the end of the quiz)

1. What is the primary purpose of the OSI model in computer networks?

   a. To define the physical layer standards

   b. To provide a conceptual framework for understanding network functions

   c. To specify the addressing scheme for IP networks

   d. To develop encryption algorithms for secure communication

2. Which of the following is a valid IPv4 address?


   b. 2001:db8::1



3. What is the role of ARP (Address Resolution Protocol) in networking?

   a. It converts IP addresses to MAC addresses

   b. It converts MAC addresses to IP addresses

   c. It establishes a secure connection between two devices

   d. It encrypts data for secure transmission

4. In the context of networking, what does DNS stand for?

   a. Dynamic Network Services

   b. Domain Name System

   c. Digital Network Security

   d. Data Networking Service

5. What is the purpose of a router in a computer network?

   a. To connect devices within the same local network

   b. To forward data packets between different networks

   c. To provide centralized storage for network data

   d. To secure network communication using encryption

6. What is the function of a firewall in a network security system?

   a. To filter and control network traffic based on a set of rules

   b. To physically connect different network segments

   c. To assign IP addresses to devices on the network

   d. To encrypt data during transmission

7. Which of the following protocols is used for secure communication over the internet?

   a. HTTP

   b. FTP

   c. HTTPS

   d. SMTP

8. What is the purpose of the subnet mask in networking?

   a. To identify the network portion of an IP address

   b. To specify the range of available IP addresses in a network

   c. To control access to a network

   d. To encrypt data during transmission

9. What is the difference between TCP (Transmission Control Protocol) and UDP (User Datagram Protocol)?

   a. TCP is connection-oriented, while UDP is connectionless

   b. UDP is more reliable than TCP

   c. TCP is faster than UDP

   d. TCP uses port numbers, while UDP uses IP addresses

10. Which layer of the OSI model is responsible for error detection and correction?

    a. Physical layer

    b. Data link layer

    c. Transport layer

    d. Presentation layer

11. What is the purpose of NAT (Network Address Translation) in networking?

    a. To translate domain names to IP addresses

    b. To hide internal IP addresses from external networks

    c. To provide encryption for data transmission

    d. To allocate IP addresses to devices on a network

12. What is the default port number for the HTTP protocol?

    a. 80

    b. 443

    c. 21

    d. 25

13. What is a MAC address used for in networking?

    a. To identify a device on a network

    b. To assign an IP address to a device

    c. To establish a secure connection between devices

    d. To encrypt data during transmission

14. What is the purpose of the traceroute command?

    a. To measure the round-trip time of packets between two hosts

    b. To trace the path of packets through the network

    c. To encrypt network traffic

    d. To test the integrity of network cables

15. What is the role of DHCP (Dynamic Host Configuration Protocol) in networking?

    a. To dynamically assign IP addresses to devices on a network

    b. To secure network communication using encryption

    c. To route data between different networks

    d. To provide domain name resolution services


1. b,

2. c, 

3. a, 

4. b, 

5. b, 

6. a, 

7. c, 

8. a, 

9. a, 

10. c, 

11. b, 

12. a, 

13. a, 

14. b, 

15. a

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