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 protocol gives secure, encrypted remote login to another computer?

  1. ASNMP
  2. BTelnet
  3. CFTP
  4. DSSH
2.Easy

Which protocol lets an email client read mail while keeping messages and folders on the server?

  1. AIMAP
  2. BSMTP
  3. CSNMP
  4. DDHCP
3.Easy

Which IEEE standard family defines Wi-Fi wireless LANs?

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

Which metric does RIP use to choose routes?

  1. ALink bandwidth
  2. BMeasured delay
  3. CBusiness policy
  4. DHop count
5.Medium

What is a cyclic redundancy check (CRC) used for in Ethernet frames?

  1. AChoosing the best route
  2. BCorrecting every bit error automatically
  3. CEncrypting the frame
  4. DDetecting transmission errors
6.Medium

Which medium access method did classic shared (half-duplex) Ethernet use?

  1. ACSMA/CA
  2. BToken passing
  3. CCSMA/CD
  4. DTDMA
7.Hard

A remote-terminal application feels sluggish because small keystroke packets are held back. Which TCP mechanism is often responsible?

  1. AThe three-way handshake
  2. BFast retransmit
  3. CSlow start
  4. DNagle's algorithm
8.Hard

In the TCP/IP model, which layer adds port numbers?

  1. AInternet layer
  2. BTransport layer
  3. CLink layer
  4. DApplication layer

Answer key

  1. 1. D · SSH
  2. 2. A · IMAP
  3. 3. C · IEEE 802.11
  4. 4. D · Hop count
  5. 5. D · Detecting transmission errors
  6. 6. C · CSMA/CD
  7. 7. D · Nagle's algorithm
  8. 8. B · Transport layer

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