CompTIA JK0-023 Online Practice Questions and Exam Preparation

CompTIA JK0-023 Online Questions & Answers

• Question 221:

  A technician has been dispatched to investgate connectvity problems of a recently renovated ofce. The technician has found that the cubicles were wired so that the network cables were run inside the conduit with the electrical cabling. Which of the following would MOST likely resolve the connectvity issue?

  A. Power-cycle the computers and switches to re-establish the network connecton.
  B. Re-run the network cabling through the ceiling alongside the lights to prevent interference.
  C. Test the wiring in the network jacks for faults using a cable verifer.
  D. Re-run the network cabling so that they are 12 inches or more away from the electrical lines.
  D. Re-run the network cabling so that they are 12 inches or more away from the electrical lines.

• Question 222:

  Which of the following will a frewall NOT protect the network from?

  A. Intrusion
  B. DDoS
  C. Denial of Service
  D. Spam e-mails
  D. Spam e-mails

• Question 223:

  Which of the following would the telecommunicatons carrier use to segregate customer trafc over long fber links?

  A. VLAN
  B. MPLS
  C. VPN
  D. PSTN
  B. MPLS

• Question 224:

  The protocols that use a three way handshake to transfer informaton can be found within which layer of the OSI model?

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

• Question 225:

  Sandyf an administratorf needs to install a wireless network that will allow legacy devices to connect to the network and also ofer both 5GHi and 2.4GHi frequencies. Which of the following would BEST describe the type of WAP needed?

  A. 802.11a
  B. 802.11b
  C. 802.11g
  D. 802.11n
  D. 802.11n

• Question 226:

  Afer plugging a cable into a computerf a user reports there is no network access. Which of the following tools would the technician MOST likely check to verify that the cable was crimped correctly?

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

• Question 227:

  Which of the following devices exist as either hardware or sofware to assist in routng trafc? (Select TWO).

  A. Cable modem
  B. Layer 2 switch
  C. Router
  D. NIDS
  E. Layer 3 switch
  C. Router
  E. Layer 3 switch

• Question 228:

  A technician is trying to add another switch to the network with multple VLANs. Which of the following should the technician confgure on the interface to allow multple VLANs?

  A. Mirroring
  B. Trunking
  C. Authentcatng
  D. Bonding
  B. Trunking

• Question 229:

  Karenf a technicianf is installing network cables for an ofce building. Some of the cables are not showing actve on the switch even when moved to diferent ports. Which of the following is MOST likely the cause?

  A. Port speed mismatch
  B. Faulty F-connectors
  C. Bad wiring
  D. Bad switch
  C. Bad wiring

• Question 230:

  Which of the following can a network technician change to help limit war driving?

  A. Signal strength
  B. SSID
  C. Frequency
  D. Channel
  A. Signal strength