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Punjab (PTB) · Chapter test · Free

2nd Year Computer Chapter 1 TestCOMPUTER NETWORKS

30 marks · 40 minutes · 21 questions. Covers: CHAP 1: COMPUTER NETWORKS.

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2nd Year Computer Chapter 1 Test

2nd Year · Computer · Punjab (PTB)

Name: ____________Roll No: ________Class/Section: ________Date: ________Total marks: 30Time: 40 minutes

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

  1. What is a key benefit of wireless network connections in a home environment?

    1. They are always faster than wired connections

    2. They completely eliminate the need for a modem

    3. Devices can move freely within the network range

    4. They do not require configuration or passwords

  2. Which device connects different networks together and links a local network to the Internet?

    1. Router

    2. Monitor

    3. Ethernet Port

    4. Power supply

  3. Which type of network provides high data transfer speed?

    1. WAN

    2. Public WAN

    3. LAN

    4. Satellite network

  4. What key advantage does load balancing offer when network traffic is high?

    1. It reduces physical power consumption

    2. It helps networks handle more users easily

    3. It replaces the need for Ethernet cables

    4. It converts IPv4 into IPv6 automatically

  5. Which type of backup saves all data at once?

    1. Incremental backup

    2. Differential backup

    3. Full backup

    4. Selective backup

  6. Which command is specifically used to test network connectivity and check if a device is reachable?

    1. traceroute

    2. ping

    3. ipconfig

    4. netstat

  7. What happens if the central hub or switch fails in a Star Topology?

    1. Only connected printers stop working

    2. The entire network stops working

    3. Data reroutes automatically through a secondary cable

    4. The network switches to Ring Topology

  8. How many total hexadecimal digits are present in a full IPv6 address?

    1. 16 digits

    2. 64 digits

    3. 32 digits

    4. 128 digits

  9. In what unit is network bandwidth usually measured?

    1. Gigahertz (GHz)

    2. Megabits per second (Mbps)

    3. Milliseconds (ms)

    4. Bytes per minute

  10. Which layer sends raw data as electrical, optical, or radio signals over the medium?

    1. Physical Layer

    2. Data Link Layer

    3. Transport Layer

    4. Application Layer

Q2. Short questions (Attempt any 6 of 8 · 6 × 2 = 12)

  1. What is the difference between how a router and a switch direct data?

  2. What is a network protocol?

  3. Briefly describe the Round Robin method of load balancing.

  4. What is Telnet?

  5. Define Switch.

  6. Write advantages of mesh topology.

  7. What functions does the Transport Layer perform to ensure reliable delivery of data?

  8. What is the difference between HTTP and HTTPS regarding data security?

Q3. Long questions (Attempt any 2 of 3 · 2 × 4 = 8)

  1. Explain the types of computer networks. Describe LAN, WAN, and the Internet.

  2. Explain the concept of data backup and its types. Also discuss the common causes of data loss and explain the methods and tools used for effective data recovery.

  3. Explain network architecture and describe the main components of a computer network.