CompTIA Network+ certification JK0-023 Dumps in PDF

Free CompTIA JK0-023 Real Questions (page: 23)


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

After the technician has established a theory of probable cause of a user reported problem, which of the following should the technician do NEXT in the troubleshooting process?

  1. Implement the solution to the problem.
  2. Establish a plan of action.
  3. Identify the problem.
  4. Implement preventative measures.

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 company has been given a Class C address to be utilized for all devices. The company has several subnets and the largest subnet has 15 hosts. Which of the following represents the MINIMUM CIDR notation of this subnet mask?

  1. /26
  2. /27
  3. /28
  4. /29

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 default ports are used with DHCP? (Select TWO).

  1. 22
  2. 23
  3. 53
  4. 67
  5. 68

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

Which of the following DNS record types provides the hostname to IP address mapping?

  1. A record
  2. NS record
  3. CNAME record
  4. MX record

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

Creating a uniform user environment throughout the network can BEST be achieved by using which of the following?

  1. Honeypots
  2. Virtual switches
  3. Virtual PBX
  4. Virtual desktops

Answer(s): D



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