220-1101 / 1102 Domain 5: Hardware and Network Troubleshooting

A workstation cannot reach internal sites by name but can by IP. Likely cause?

Multiple choice — select one answer

Answer choices

  1. a. Verify cable pairs, switch port VLANs, and link lights
  2. b. Roll back the driver and test RAM with a memory diagnostic
  3. c. Disable unnecessary startup programs
  4. d. DNS failure or misconfiguration

Architectural breakdown & explanation

Name resolution failures point to DNS.

Correct answer(s): d. DNS failure or misconfiguration

Exam domain: Domain 5: Hardware and Network Troubleshooting (29% weight on the official guide).

Official documentation & study links

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