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  1. Home
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  3. JK0-023

CompTIA JK0-023 Exam (page: 3)
CompTIA Network+ certification
Updated on: 31-Mar-2026

Viewing Page 3 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

The TCP/IP application layer contains which of the following OSI layers?

  1. Layers 1, 5, 6, 7
  2. Layers 4, 7
  3. Layers 5, 6, 7
  4. Layer 7

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

In order for switching loops to be automatically disabled, which of the following needs to be implemented?

  1. Routing tables
  2. Collision domains
  3. Port mirroring
  4. Spanning-tree protocol

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

Joe has a small office and is looking to replace his phone system with a lower cost solution that requires minimal in-house support. Which of the following is the BEST choice?

  1. Wide Area Network
  2. NAT
  3. Virtual PBX
  4. Virtual LAN

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 protocols is commonly used for VoIP technology?

  1. Telnet
  2. SMTP
  3. SIP
  4. SNMP

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

If a NIC does not have a link light, there is a failure at which of the following OSI layers?

  1. Physical
  2. Session
  3. Data link
  4. Presentation

Answer(s): A



Viewing Page 3 of 193



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