CompTIA JK0-019 Online Practice Questions and Exam Preparation

CompTIA JK0-019 Online Questions & Answers

• Question 711:

  A technician has narrowed down the cause of a problem to two possible sources. Which of the following should the technician do NEXT?

  A. Implement a solution for both causes to be sure all possibilities are covered.
  B. Choose the more likely cause and test to confirm.
  C. Establish a plan of action for each.
  D. Choose the less likely cause and test to eliminate.
  B. Choose the more likely cause and test to confirm.

• Question 712:

  Which of the following are authentication methods that can use AAA authentication? (Select TWO).

  A. Kerberos
  B. PKI
  C. TKIP/AES
  D. MS-CHAP
  E. RADIUS
  F. TACACS+
  E. RADIUS
  F. TACACS+

• Question 713:

  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. Proxy server
  D. DNS server
  C. Proxy server

• Question 714:

  A technician is troubleshooting a network issue and needs to view network traffic on a switch in real-time. Which of the following would allow the technician to view network traffic on a switch?

  A. ISAKMP
  B. Port forwarding
  C. Port security
  D. Port mirroring
  D. Port mirroring

• Question 715:

  Users are reporting that all of a sudden some of the files stored on the remote file server share are becoming corrupted and cannot be opened. A technician is dispatched to the server room to troubleshoot. The technician verifies that no changes to the network infrastructure occurred recently. Which of the following tools is MOST likely to reveal why files are becoming corrupted?

  A. Environmental monitor
  B. OTDR
  C. Cable tester
  D. Punch down tool
  A. Environmental monitor

• Question 716:

  Which of the following are standard fiber cable connector types? (Select TWO).

  A. RJ-11
  B. F-connector
  C. MTRJ
  D. DB-9
  E. ST
  C. MTRJ
  E. ST

• Question 717:

  An 802.11a wireless network is functioning at which of the following frequencies?

  A. 1.0 GHz
  B. 1.5 GHz
  C. 2.4 GHz
  D. 5.0 GHz
  D. 5.0 GHz

• Question 718:

  Joe, a technician, is attempting to connect two hubs to add a new segment to his local network. He uses one of his CAT5 patch cables to connect them; however, he is unable to reach the new network segment from his workstation. He can only connect to it from a workstation within that segment. Which of the following is MOST likely the problem?

  A. One of the hubs is defective.
  B. The new hub is powered down.
  C. The patch cable needs to be a CAT6 patch cable.
  D. The technician used a straight-through cable.
  D. The technician used a straight-through cable.

• Question 719:

  A user is unable to open up websites on the Internet from a browser. The administrator determines that the workstation can ping its local gateway, but not the remote web server. At which of the following layers of the OSI model does the problem MOST likely exist?

  A. Data link
  B. Network
  C. Session
  D. Physical
  B. Network

• Question 720:

  A technician is troubleshooting a problem where data packets are being corrupted. Which of the following connectivity problems should the technician check?

  A. Attenuation
  B. Latency
  C. Crosstalk
  D. External interference
  C. Crosstalk