CompTIA JK0-023 Online Practice Questions and Exam Preparation

CompTIA JK0-023 Online Questions & Answers

• Question 571:

  Which of the following networking devices can exist at several layers of the OSI model at the same tme? (Select TWO).

  A. Switch
  B. Cable
  C. Repeater
  D. Router
  E. Bridge
  F. Hub
  A. Switch
  D. Router

• Question 572:

  At which of the following locatons does the responsibility of a Telco provider cease?

  A. IDF
  B. CSU
  C. Demarc
  D. MDF
  C. Demarc

• Question 573:

  A network has a large number of users who connect for short periods of tme and the network needs to maximiie the number of devices that can be confgured using DHCP. Which of the following should be confgured to solve this issue?

  A. Increase the number of reservatons
  B. Increase exclude list
  C. Decrease lease tmes
  D. Decrease the scope
  C. Decrease lease tmes

• Question 574:

  In which of the following would Sandyf a technicianf fnd the LARGEST number of 110 block patch panels?

  A. MDF
  B. Caching engines
  C. Demarc
  D. IDF
  A. MDF

• Question 575:

  A network technician has recently discovered rogue devices on their network and wishes to implement a security feature that will prevent this from occurring. Which of the following will prevent unauthoriied devices from connectng to a network switch?

  A. Implement 802.11i on all switches in the network.
  B. Implement port security on all computers in the company.
  C. Implement port security on all switches in the network.
  D. Implement rules on the frewall to block unknown devices.
  C. Implement port security on all switches in the network.

• Question 576:

  Which of the following is an example of two-factor authentcaton?

  A. A username and PIN
  B. A username and password
  C. A usernamef passwordf fnger print scanf and smart card
  D. A usernamef passwordf and key fob number
  D. A usernamef passwordf and key fob number

• Question 577:

  Which of the following protocols uses port 3389 by default?

  A. RDP
  B. TFTP
  C. IMAP
  D. DNS
  A. RDP

• Question 578:

  Which of the following is a square shaped fber connector that is slightly smaller than a standard copper network cable connector?

  A. BNC
  B. FSMA
  C. MT-RJ
  D. ST
  C. MT-RJ

• Question 579:

  A stateful point to point wireless connecton going down for a few hours at a tme is MOST likely due to which of the following?

  A. Interference
  B. Confguraton
  C. Incorrect MTU siie
  D. Incorrect IP
  A. Interference

• Question 580:

  A network administrator is troubleshootng an intermitent network issue between devices that have a partcularly long cable run. The issue was escalated to a network designer who alluded to potental atenuaton issues. Which of the following BEST describes what the network designer was referring to?

  A. Bad connectors
  B. Cross-talk
  C. EMI / Interference
  D. dB loss
  D. dB loss