CompTIA JK0-023 Online Practice Questions and Exam Preparation

CompTIA JK0-023 Online Questions & Answers

• Question 991:

  When examining a suspected faulty copper network cablef Kimf the administratorf notces that some of the pairs are untwisted too much. This is MOST likely causing which of the following?

  A. DB loss
  B. Dispersion
  C. Collisions
  D. Cross-talk
  D. Cross-talk

• Question 992:

  Jeff a userf can no longer access the accountng fle sharef but others are stll able to access the share. Which of the following would be the FIRST step in troubleshootng the issue?

  A. Notfy senior management of the issue.
  B. Develop a probable cause theory.
  C. Ask Jef if anything has changed on the system.
  D. Escalate the issue to the vendor.
  C. Ask Jef if anything has changed on the system.

• Question 993:

  A technician has notced that the RJ-45 connector on the end of a userns patch cable was stripped too far back from the connector allowing for cross talk. Which of the following tools would a technician use to atach a new connector to eliminate this issue?

  A. Crimper
  B. Cable certfer
  C. Loopback plug
  D. Punch down tool
  A. Crimper

• Question 994:

  A switch in IDF 3 has shut down at 3 p.m. everyday this week. Which of the following network tools should Kimf a technicianf use to troubleshoot this problem?

  A. Environmental monitor
  B. Cable tester
  C. TDR
  D. Loopback plug
  A. Environmental monitor

• Question 995:

  Which of the following IP addresses would be classifed as private?

  A. 10.100.200.0
  B. 169.253.10.20
  C. 172.168.5.0
  D. 200.100.25.0
  A. 10.100.200.0

• Question 996:

  Kimf a network technicianf is troubleshootng a problem and has just established a plan of acton to resolve the problem. Which of the following is the NEXT step in the troubleshootng methodology?

  A. Verify full system functonality and if applicable implement preventatve measures.
  B. Implement the soluton or escalate as necessary.
  C. Document fndingsf actonsf and outcomes.
  D. Establish a theory of probable cause (e.g. queston the obvious).
  B. Implement the soluton or escalate as necessary.

• Question 997:

  Which IEEE protocol is used with VLAN technology?

  A. 802.11a
  B. 802.11b
  C. 802.1m
  D. 802.1q
  D. 802.1q

• Question 998:

  A technician has replaced the Internet gateway routerf and now no users can reach the Internet. The technician can ping the router Ethernet port but not the ISPns router IP address. Which of the following is the MOST likely problem?

  A. Faulty crossover cable
  B. DNS server is down
  C. Switching loop
  D. Outside interface shutdown
  D. Outside interface shutdown

• Question 999:

  Lisaf an administratorf has been tasked with running cables from one ofce to another neighboring ofce by running cables over the light fxtures in the ceiling that connects them. To prevent interferencef which of the following cable types should Lisa use?

  A. CAT5e
  B. CAT6
  C. Coaxial
  D. Multmode fber
  D. Multmode fber

• Question 1000:

  Which of the following network devices hides network nodes behind one public IP address?

  A. Layer 3 switch
  B. Content flter
  C. VPN server
  D. Proxy server
  D. Proxy server