Computer networks worksheet with answers

Free printable Computer networks worksheet: 8 problems from easy to exam level, with an answer key. Print it or save it as a PDF.

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Name: ____________________   Date: ____________

1.Easy

Which IEEE standard family defines Wi-Fi wireless LANs?

  1. AIEEE 802.15
  2. BIEEE 802.3
  3. CIEEE 802.11
  4. DIEEE 802.1Q
2.Easy

Which transport protocol provides reliable, ordered delivery with acknowledgements?

  1. AICMP
  2. BTCP
  3. CIP
  4. DUDP
3.Easy

A MAC address identifies:

  1. AA user account
  2. BA website
  3. CA network interface on the local link
  4. DA router's public IP
4.Medium

TLS provides which security properties for HTTPS?

  1. AProtection against all malware and phishing on the visited site
  2. BConfidentiality, integrity and server authentication
  3. COnly faster loading
  4. DAnonymity of the user
5.Medium

What uniquely identifies one end of a TCP connection on the internet?

  1. AAn IP address together with a port number
  2. BA MAC address alone
  3. CA domain name alone
  4. DA subnet mask and gateway
6.Medium

A router has routes for 10.0.0.0/8 and 10.1.0.0/16. Which route does it use for a packet to 10.1.5.5?

  1. A10.1.0.0/16, because it is the longest matching prefix
  2. B10.0.0.0/8, because it was added first
  3. CBoth routes, splitting the traffic equally
  4. D10.0.0.0/8, because it covers more addresses than the /16
7.Hard

What is the maximum transmission unit (MTU) of standard Ethernet payload?

  1. A64 bytes
  2. B9000 bytes in every network
  3. C65,535 bytes
  4. D1500 bytes
8.Hard

Which mechanism prevents broadcast loops in a network with redundant switch links?

  1. ADHCP snooping
  2. BSpanning Tree Protocol
  3. CARP caching
  4. DNAT

Answer key

  1. 1. C · IEEE 802.11
  2. 2. B · TCP
  3. 3. C · A network interface on the local link
  4. 4. B · Confidentiality, integrity and server authentication
  5. 5. A · An IP address together with a port number
  6. 6. A · 10.1.0.0/16, because it is the longest matching prefix
  7. 7. D · 1500 bytes
  8. 8. B · Spanning Tree Protocol

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