CompTIA Network+ certification JK0-023 Dumps in PDF

Free CompTIA JK0-023 Real Questions (page: 10)


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

A crossover cable is MOST commonly associated with which of the following layers of the OSI model?

  1. Session
  2. Application
  3. Network
  4. Physical

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 are used to view and send mail from a local host off of a remote server? (Select TWO).

  1. TFTP
  2. SNMP
  3. POP3
  4. IMAP4
  5. SFTP

Answer(s): C,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

Frame relay occurs at which of the following layers of the OSI model?

  1. Layer 1
  2. Layer 2
  3. Layer 4
  4. Layer 6

Answer(s): B




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

A technician has narrowed down the cause of a problem to two possible sources. Which of the following should the technician do NEXT?

  1. Implement a solution for both causes to be sure all possibilities are covered.
  2. Choose the more likely cause and test to confirm.
  3. Establish a plan of action for each.
  4. Choose the less likely cause and test to eliminate.

Answer(s): B




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 port numbers is used for SNMP?

  1. 61
  2. 151
  3. 161
  4. 1611

Answer(s): C



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