CompTIA JK0-023 Exam Questions
CompTIA Network+ certification (Page 18 )

Updated On: 17-Feb-2026
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Which of the following is a reason to use dynamic DNS?

  1. The host IP address is not listed in the firewall.
  2. The host IP address is assigned by DHCP.
  3. Static routes cannot be used on the host network.
  4. A third-party certificate is being used.

Answer(s): B



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Which of the following is the definition of a DNS server?

  1. Hosts proprietary business applications
  2. Translates FQDN's to IP addresses
  3. Provides network IDS/IPS security
  4. Assigns IP addresses to network devices

Answer(s): B



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The protocols that use a three way handshake to transfer information can be found within which layer of the OSI model?

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

Answer(s): C



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Which of the following uses eight groups of characters for addressing?

  1. MAC
  2. IPv4
  3. IPv6
  4. DHCP

Answer(s): C



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A technician is developing a shortcut sheet for the network to be able to assist in future troubleshooting scenarios. Which of the following should the network devices have to ease manageability efforts?

  1. MAC spoofing
  2. Dynamic IPs
  3. MAC filtering
  4. Static IPs

Answer(s): D






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