Internet & Networking

JKSSB Junior Assistant · Basic Concepts of Computers · 165 practice questions with answers and explanations: 125 Easy, 40 Medium, 0 Hard.

Sample questions

Sample Easy question 1

The ping command is used to:

  1. Test connectivity to another host
  2. Edit the registry
  3. Format the disk
  4. Delete files
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Answer: A. Ping checks reachability.

Sample Easy question 2

The ipconfig command in Windows displays:

  1. Disk usage
  2. Installed software
  3. Running programs
  4. The IP configuration of network adapters
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Answer: D. ipconfig shows IP address, mask and gateway.

Sample Easy question 3

The unique address assigned to a device on a network using the Internet Protocol is called its:

  1. Firewall
  2. Domain extension
  3. IP address
  4. Cookie
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Answer: C. An IP address identifies a device on a network.

Sample Medium question 4

ICMP is used by the ping command to:

  1. Encrypt data
  2. Send error and diagnostic messages
  3. Send email
  4. Transfer files
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Answer: B. ICMP carries echo requests and replies.

Sample Medium question 5

NAT (Network Address Translation) allows:

  1. Higher bandwidth
  2. Encryption of email
  3. Translation of languages
  4. Many private devices to share one public IP address
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Answer: D. NAT maps private addresses to a public one.

Sample Medium question 6

A VLAN is:

  1. A very large network cable
  2. A logical grouping of devices in a network regardless of physical location
  3. A virus LAN
  4. A video network
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Answer: B. VLANs segment a network logically.

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