CompTIA Network+ certification JK0-023 Dumps in PDF

Free CompTIA JK0-023 Real Questions (page: 33)


Which of the following differentiates a layer 3 switch from a layer 2 switch?

A. Routing
B. Bridging
C. Switching
D. Repeating

Answer(s): A

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




Which of the following differentiates a layer 3 switch from a layer 2 switch?

A. Routing
B. Bridging
C. Switching
D. Repeating

Answer(s): A

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




Which of the following differentiates a layer 3 switch from a layer 2 switch?

A. Routing
B. Bridging
C. Switching
D. Repeating

Answer(s): A

DHCP uses which of the following ports by default?

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

Answer(s): C




Which of the following differentiates a layer 3 switch from a layer 2 switch?

A. Routing
B. Bridging
C. Switching
D. Repeating

Answer(s): A

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




Which of the following differentiates a layer 3 switch from a layer 2 switch?

A. Routing
B. Bridging
C. Switching
D. Repeating

Answer(s): A

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



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