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 wired Ethernet?

  1. AIEEE 802.3
  2. BIEEE 802.11
  3. CIEEE 802.16
  4. DIEEE 802.5
2.Easy

In which network topology is every device connected to one central switch or hub?

  1. ABus
  2. BFull mesh
  3. CRing
  4. DStar
3.Easy

Which command shows the routers a packet passes through on its way to a destination?

  1. Anetstat
  2. Bipconfig
  3. Cnslookup
  4. Dtraceroute (tracert on Windows)
4.Medium

How many usable host addresses does a /24 IPv4 network have?

  1. A254
  2. B255
  3. C256
  4. D252
5.Medium

How long does it take to put a 1500-byte packet onto a 12 Mbit/s link (transmission delay)?

  1. A12 ms
  2. B0.125 ms
  3. C8 ms
  4. D1 ms
6.Medium

How many usable host addresses does a /26 IPv4 subnet have?

  1. A126
  2. B64
  3. C30
  4. D62
7.Hard

An 8-port switch (no VLANs) has one host on each port. How many collision domains and broadcast domains are there?

  1. A8 collision domains, 8 broadcast domains
  2. B1 collision domain, 8 broadcast domains
  3. C1 collision domain, 1 broadcast domain
  4. D8 collision domains, 1 broadcast domain
8.Hard

Why does IPv6 not need NAT for address shortage?

  1. AIPv6 only works on local networks, so addresses never need to be shared globally
  2. BIPv6 does not use addresses
  3. CIPv6 encrypts all addresses
  4. DIts 128-bit address space is large enough to give every device a global address

Answer key

  1. 1. A · IEEE 802.3
  2. 2. D · Star
  3. 3. D · traceroute (tracert on Windows)
  4. 4. A · 254
  5. 5. D · 1 ms
  6. 6. D · 62
  7. 7. D · 8 collision domains, 1 broadcast domain
  8. 8. D · Its 128-bit address space is large enough to give every device a global address

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