Internet & Networking

J&K Bank PO · Computer Aptitude · 180 practice questions with answers and explanations: 135 Easy, 45 Medium, 0 Hard.

Sample questions

Sample Easy question 1

An intranet is:

  1. A type of virus
  2. A public network for everyone
  3. A satellite network
  4. A private network within an organisation
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Answer: D. Intranets are internal.

Sample Easy question 2

An extranet allows:

  1. Unlimited public access
  2. Controlled access to a company's network for outsiders such as partners
  3. No network access
  4. File sharing on one PC
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Answer: B. Selected outsiders get limited access.

Sample Easy question 3

In a star topology, failure of the central hub causes:

  1. The entire network to fail
  2. No effect
  3. The cable to heat up
  4. Just one device to fail
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Answer: A. All traffic passes through the centre.

Sample Medium question 4

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.

Sample Medium question 5

Which of the following is a private IP address?

  1. 11.0.0.1
  2. 172.15.0.1
  3. 8.8.8.8
  4. 192.168.0.5
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Answer: D. 192.168.x.x is private; 172.15.x.x is outside the 172.16–172.31 private range.

Sample Medium question 6

Which device connects different networks and forwards data packets between them?

  1. Scanner
  2. Router
  3. Hub
  4. Repeater
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Answer: B. A router uses IP addresses to forward packets between networks.

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