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CompTIA JK0-023 Exam - CompTIA Academic/E2C Network+ Voucher Only

Questions & Answers for CompTIA JK0-023

Showing 1-15 of 963 Questions

Question #1 - Topic 1

Which of the following is a purpose of a VLAN?

A. Decreases bandwidth on a network

B. Segments broadcast traffic

C. Increases port speed

D. Allows another connection to the router

Question #2 - Topic 1

Which of the following protocols resolves IP addresses to MAC addresses?

A. DNS

B. ARP

C. RARP

D. NTP

Question #3 - Topic 1

Which of the following routing protocols can be utilized as both an IGP and EGP?

A. EIGRP

B. RIP

C. IGRP

D. RIPv2

Question #4 - Topic 1

Which of the following routing protocols utilizes the DUAL algorithm for determining best
path?

A. EIGRP

B. RIPv2

C. OSPF

D. RIP

Question #5 - Topic 1

Which of the following uses types and codes rather than ports?

A. EIGRP

B. ICMP

C. UDP

D. IPv6

Question #6 - Topic 1

After Kurt, a technician, has established a plan of action to resolve the problem, which of
the following steps should he perform NEXT?

A. Establish a theory of probable cause.

B. Implement preventative measures.

C. Verify full system functionality.

D. Implement the solution or escalate as necessary.

Question #7 - Topic 1

Which of the following defines an IP address that is NOT routed on the Internet?

A. Multicast

B. Public

C. Private

D. Classful

Question #8 - Topic 1

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

A. Honeypots

B. Virtual switches

C. Virtual PBX

D. Virtual desktops

Question #9 - Topic 1

Which of the following services would have assigned the IP address 169.254.1.89?

A. DHCP

B. APIPA

C. IDS

D. DNS

Question #10 - Topic 1

Which of the following protocols does DNS utilize on port 53?

A. TCP

B. FTP

C. RTP

D. ICMP

Question #11 - Topic 1

Which of the following is the MOST appropriate to use when routing Internet traffic through
multiple ISP connections?

A. BGP

B. SNAT

C. RIP

D. GPG

Question #12 - Topic 1

Lisa, an administrator, attempts to open a web page and sees the following error: Error
404: Page not found. She then uses the ping command and finds that the default gateway
cannot be pinged. At which of the following layers does the problem MOST likely reside?

A. Layer 1

B. Layer 4

C. Layer 5

D. Layer 7

Question #13 - Topic 1

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

A. Routing tables

B. Collision domains

C. Port mirroring

D. Spanning-tree protocol

Question #14 - Topic 1

IP address based routing occurs on which of the following layers of the OSI model?

A. Layer 2

B. Layer 3

C. Layer 4

D. Layer 5

Question #15 - Topic 1

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?

A. Implement the solution to the problem.

B. Establish a plan of action.

C. Identify the problem.

D. Implement preventative measures.

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