CompTIA Network+ certification : JK0-023 Exam Questions

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CompTIA JK0-023 Exam Syllabus Topics:

CompTIA Network+ certification Sample Questions:

1. A proxy server would MOST likely be installed to provide which of the following functions? (Select TWO).

A) Encryption
B) Fault tolerance
C) Content filtering
D) Combined DNS and DHCP hosting
E) Website caching

2. A technician notices that network access is becoming increasingly slow. All of the activity lights, on the only network layer 2 switch, are blinking at steadily increasing rates. Which of the following is the MOST likely cause of the increased traffic?

A) Duplicate IP addresses
B) MTU mismatch
C) STP blocking
D) Switching loop

3. After a new firewall is installed, users report that they do not have connectivity to the Internet. The output of the ipconfig command shows an IP address of 169.254.0.101. Which of the following ports would need to be opened on the firewall to allow the users to obtain an IP address? (Select TWO).

A) UDP 68
B) TCP 67
C) TCP 68
D) TCP 53
E) UDP 67
F) UDP 53

4. Which of the following describes an IPv6 address of ::1?

A) Multicast
B) Broadcast
C) Classless
D) Loopback

5. Which of the following security devices can receive and process HTTP requests from hosts to allow or deny traffic for web browsing purposes only?

A) Load balancer
B) VPN concentrator
C) DNS server
D) Proxy server

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