CompTIA JK0-023 Exam Questions
CompTIA Network+ certification (Page 34 )

Updated On: 17-Feb-2026
View Related Case Study

In which of the following layers of the OSI model does the TCP protocol operate?

  1. Session
  2. Network
  3. Data link
  4. Transport

Answer(s): D



View Related Case Study

Which of the following protocols is used to send time synchronization updates on a given network?

  1. NTP
  2. POP3
  3. DNS
  4. IMAP

Answer(s): A



View Related Case Study

DHCP uses which of the following ports by default?

  1. 21
  2. 23
  3. 68
  4. 443

Answer(s): C



View Related Case Study

Which of the following layers of the OSI model is responsible for stripping the TCP port information before sending the packet up to the next layer?

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

Answer(s): C



View Related Case Study

Which of the following BEST describes how a layer 2 switch functions?

  1. Switches packets within the same subnet based on MAC addresses
  2. Switches packets between different subnets based on IP addresses
  3. Switches packets between different subnets based on MAC addresses
  4. Switches packets within the same subnet based on IP addresses

Answer(s): A






Post your Comments and Discuss CompTIA JK0-023 exam dumps with other Community members:

Join the JK0-023 Discussion