CompTIA JK0-023 : CompTIA Network+ certification

  • Exam Code: JK0-023
  • Exam Name: CompTIA Network+ certification
  • Updated: Sep 06, 2025
  • Q & A: 995 Questions and Answers

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CompTIA Network+ certification Sample Questions:

1. Which of the following is used to define how much bandwidth can be used by various protocols on the network?

A) Fault tolerance
B) Traffic shaping
C) Load balancing
D) High availability


2. Which of the following records allows for reverse DNS lookups?

A) CNAME
B) A
C) AAAA
D) PTR


3. Which of the following capabilities of a firewall allows Zach, an administrator, to block traffic based on key words determined by the company?

A) Content filter
B) Signature identification
C) Stateless traffic monitor
D) Stateful traffic monitor


4. Which of the following reside at a minimum of Layer 3 of the OSI model? (Select TWO).

A) MAC address
B) Router
C) IP address
D) Hub
E) Switch


5. Hubs are differentiated from switches in that between the two, only hubs have:

A) A single collision domain.
B) Multiple broadcast domains.
C) A single broadcast domain.
D) Multiple collision domains.


Solutions:

Question # 1
Answer: B
Question # 2
Answer: D
Question # 3
Answer: A
Question # 4
Answer: B,C
Question # 5
Answer: A

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