CompTIA JK0-023 Exam Questions
CompTIA Network+ certification (Page 16 )

Updated On: 10-Mar-2026
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A technician finds that the network card is no longer functioning. At which of the following OSI layers is the problem occurring?

  1. Layer 1
  2. Layer 3
  3. Layer 5
  4. Layer 7

Answer(s): A



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Which of the following routing protocols utilizes the DUAL algorithm for determining best path?

  1. EIGRP
  2. RIPv2
  3. OSPF
  4. RIP

Answer(s): A



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Which protocol is represented by the packet capture below?
UDP 0.0.0.0:68 -> 255.255.255.255:67

  1. DHCP
  2. FTP
  3. SNMP
  4. DNS

Answer(s): A



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Which of the following would be considered a Class C private address?

  1. 10.0.0.125
  2. 192.168.50.125
  3. 192.169.0.132
  4. 255.255.255.0

Answer(s): B



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After Kurt, a technician, has established a plan of action to resolve the problem, which of the following steps should he perform NEXT?

  1. Establish a theory of probable cause.
  2. Implement preventative measures.
  3. Verify full system functionality.
  4. Implement the solution or escalate as necessary.

Answer(s): D



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