CompTIA Network+ certification : JK0-023

  • Exam Code: JK0-023
  • Exam Name: CompTIA Network+ certification
  • Updated: May 28, 2026     Q & A: 995 Questions and Answers

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CompTIA Network+ certification Sample Questions:

1. A Windows server has a problem after booting up. Kim, a technician, should immediately check the:

A) history logs.
B) application logs.
C) cron logs.
D) system logs.


2. Which of the following would be used on a network to ensure access to resources if a critical host becomes unavailable?

A) VLAN
B) DHCP server
C) CARP
D) QoS


3. Which of the following utilities would Karen, a technician, use to resolve the FQDN of a web server to its IP address?

A) route
B) arp
C) nslookup
D) netstat


4. Lisa, an administrator, wants to limit the wireless guest network traffic to 100Kbps so that utilization issues do not occur on the company's T1 Internet access network. Which of the following optimizations should Lisa implement?

A) Traffic shaping
B) Quality of service
C) Caching engine
D) Load balancing


5. Which of the following is used to ensure traffic flows efficiently on multiple T-1 circuits?

A) DNS server
B) Proxy server
C) Content filter
D) Load balancer


Solutions:

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

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