[Free] 2018(Aug) Dumps4cert CompTIA JK0-023 Dumps with VCE and PDF Download 281-290

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2018 Aug CompTIA Official New Released JK0-023
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CompTIA Network certification

Question No: 281 – (Topic 3)

Which of the following colors represents the outer leads on a connector head of a 568B patch cable? (Select TWO).

  1. Blue, brown/white

  2. Green/white, blue

  3. Orange/white, orange

  4. Blue, blue/white

  5. Brown/white, brown

Answer: C,E

Question No: 282 – (Topic 3)

A technician is trying to add another switch to the network with multiple VLANs. Which of

the following should the technician configure on the interface to allow multiple VLANs?

  1. Mirroring

  2. Trunking

  3. Authenticating

  4. Bonding

Answer: B

Question No: 283 – (Topic 3)

In contrast to earlier Wi-Fi speeds, which of the following BEST describes the antenna and channelization properties used in 802.11n?

  1. MIMO, DSSS

  2. MIMO, OFDM

  3. CSMA, DSSS

  4. CSMA, CDMA

Answer: B

Question No: 284 – (Topic 3)

Which of the following can MOST likely cause intermittent connection problems with a CAT5 network cable?

  1. Cable has been looped too many times.

  2. Cable has a twist tie attached too close to the connector.

  3. Cable is too warm.

  4. Cable is run too close to a fluorescent light.

Answer: D

Question No: 285 – (Topic 3)

Which of the following is a packet switching WAN technology?

  1. Frame relay

  2. T1

  3. Asynchronous transfer mode

  4. ISDN

Answer: A

Question No: 286 – (Topic 3)

Which of the following standards can operate at either 20MHz or 40MHz channel spacing?

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

Answer: D

Question No: 287 – (Topic 3)

T568B wiring scheme is typically found on which of the following components?

  1. Demarc extension

  2. 66 block

  3. Patch panel

  4. Vertical cross connect

Answer: C

Question No: 288 – (Topic 3)

Which of the following connectors would be found on a fiber optic cable?

  1. BNC

  2. RJ-11

  3. RS-232

  4. MTRJ

Answer: D

Question No: 289 – (Topic 3)

Which of the following wireless standards can operate on the same frequency but are not compatible?

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

Answer: B

Question No: 290 – (Topic 3)

Which of the following WAN technologies uses four wires for digital and a 66 block?

  1. Cable

  2. ATM

  3. T3

  4. POTS

Answer: D

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