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  1. Home
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  3. JK0-023

CompTIA JK0-023 Exam (page: 5)
CompTIA Network+ certification
Updated on: 12-Feb-2026

Viewing Page 5 of 193
JK0-023 PDF 1112 Questions

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

Zach, a network administrator, is responding to a support ticket. The ticket does not have enough information to determine the problem. Which of the following should Zach perform FIRST before responding to the ticket?

  1. Determine if anything has changed.
  2. Test a theory to determine a cause.
  3. Establish a plan of action to resolve the problem.
  4. Escalate the problem if necessary.

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

Which of the following ports would have to be allowed through a firewall to allow SNMP traffic to pass on its default port? (Select TWO).

  1. 22
  2. 23
  3. 143
  4. 161
  5. 162
  6. 8080

Answer(s): D,E




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

Lisa, an administrator, attempts to open a web page and sees the following error: `Error 404: Page not found'. She then uses the ping command and finds that the default gateway cannot be pinged. At which of the following layers does the problem MOST likely reside?

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

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

Which of the following protocols uses port 3389 by default?

  1. RDP
  2. TFTP
  3. IMAP
  4. DNS

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

Which of the following operates at OSI layer 2 to forward traffic based on the MAC address?

  1. Switch
  2. Proxy Server
  3. Router
  4. VPN Concentrator

Answer(s): A



Viewing Page 5 of 193



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