CompTIA JK0-016 Online Practice Questions and Exam Preparation

CompTIA JK0-016 Online Questions & Answers

• Question 661:

  A technician has been dispatched to investigate an issue where several users in the same aisle have stated they have had no network connection for over an hour. When the technician gets there, the network seems to be up and running. Which of the following should the technician do NEXT?

  A. Ask the users for more information, such as which applications were not functioning.
  B. Power-cycle the switch that the users share to clear out cached DNS records.
  C. Escalate the issue to the network administrator to have their domain credentials reset.
  D. Close and document the service call, as there was no actual issue affecting the users.
  A. Ask the users for more information, such as which applications were not functioning.

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  Because the system was up and running when the technician reached there, he can ask for applications that were not working or can ask for more information so that he can isolate the problem. Power cycling will not help because the system is already up and recycling can wipe out logs. Escalation will also not help because the system is now up and running. Closing the call will be unfair because the same instance can occur again.

• Question 662:

  Which of the following antenna types has a flat circular radiation pattern?

  A. Diversity
  B. Yagi
  C. Omni
  D. Patch
  C. Omni

• Question 663:

  A network administrator is implementing a wireless honeypot to detect wireless breach attempts. The honeypot must implement weak encryption to lure malicious users into easily breaking into the network. Which of the following should the network administrator implement on the WAP?

  A. WPA
  B. WPA2
  C. WEP
  D. VPN
  C. WEP

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  Wired Equivalent Privacy (WEP) is a security algorithm for IEEE 802.11 wireless networks. Introduced as part of the original 802.11 standard ratified in September 1999, its intention was to provide data confidentiality comparable to that of a traditional wired network.WEP, recognizable by the key of 10 or 26 hexadecimal digits, is widely in use and is often the first security choice presented to users by router configuration tools

• Question 664:

  Which of the following is the unit used to transfer information at Layer 2 of the OSI model?

  A. Packet
  B. Socket
  C. Session
  D. Frame
  D. Frame

• Question 665:

  When a loop occurs, which of the following STP components determines which port to disable?

  A. Convergence
  B. Root bridge
  C. BPDU guard
  D. MAC address
  B. Root bridge

• Question 666:

  Which of the following protocols is used to send time synchronization updates on a given network?

  A. NTP
  B. POP3
  C. DNS
  D. IMAP
  A. NTP

• Question 667:

  Which of the following would be used in a firewall to block incoming TCP packets that are not from established connections?

  A. Access control lists
  B. Port address translation
  C. Blocking unauthorized ports
  D. Stateful inspection
  D. Stateful inspection

• Question 668:

  Which of the following connector types is only used with copper media?

  A. ST
  B. SC
  C. MTRJ
  D. DB-9
  D. DB-9

• Question 669:

  Which of the following tools would a technician use to determine if a CAT6 patch cable has an open or short?

  A. OTDR
  B. Cable tester
  C. Toner probe
  D. Protocol analyzer
  B. Cable tester

• Question 670:

  A technician is configuring a new DSL router. The technician can communicate with the LAN, but not the WAN. Which of the following is the MOST likely cause?

  A. Duplicate IP addresses
  B. Bad GBIC
  C. Wrong gateway
  D. Switching loop
  C. Wrong gateway