CompTIA JK0-023 Online Practice Questions and Exam Preparation

CompTIA JK0-023 Online Questions & Answers

• Question 261:

  A router operates at which of the following layers of the OSI model?

  A. Layer 2
  B. Layer 3
  C. Layer 4
  D. Layer 5
  B. Layer 3

• Question 262:

  Which of the following assists a network administrator in reverse engineering malware and viruses?

  A. Virtual switches
  B. Virtual machines
  C. VLANs
  D. IDS
  B. Virtual machines

• Question 263:

  Which wireless standard works at a MAXIMUM data rate of up to 54Mbps?

  A. 802.11b
  B. 802.11g
  C. 802.11n
  D. 802.1q
  B. 802.11g

• Question 264:

  A user has three diferent subnets in an ofce. Which of the following can be confgured to allow two of the subnets to communicate directly with each other at the switch level?

  A. 802.1af
  B. 802.1q
  C. 802.1x
  D. 802.2
  B. 802.1q

• Question 265:

  Which of the following defnes access for a network?

  A. ACL
  B. RDP
  C. RAS
  D. ARP
  A. ACL

• Question 266:

  The BEST way to determine the next hop of a packet is to check the:

  A. link state
  B. routng table
  C. routng metrics
  D. convergence
  B. routng table

• Question 267:

  Network upgrades have been completed and the WINS server was shutdown. It was decided that NetBIOS network trafc will no longer be permited. Which of the following will accomplish this objectve?

  A. Content fltering
  B. Port fltering
  C. MAC fltering
  D. IP fltering
  B. Port fltering

• Question 268:

  Afer a new user moves furniture into a cubiclef the computer does not connect to the network any longer. Which of the following would be the MOST likely reason? (Select TWO).

  A. Bad Ethernet switch port
  B. TX/RX reversed
  C. Bad connectors
  D. Bad patch cable
  E. Mismatched MTU
  C. Bad connectors
  D. Bad patch cable

• Question 269:

  A company has gone through several upgrades on their network but unfortunately have no way of identfying who approved the upgrades. Which of the following should be implemented to track this type of work?

  A. Change management
  B. Asset management
  C. Access log
  D. Baselines
  A. Change management

• Question 270:

  A network administrator wants to balance the amount of data between two networking cards. Which of the following can be used for two or more networking cards?

  A. NIC bonding
  B. Proxy server
  C. Firewall ACLs
  D. VLANs
  A. NIC bonding