[Free] 2018(June) Dumps4cert CompTIA JK0-023 Dumps with VCE and PDF Download 221-230

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

Question No: 221 – (Topic 3)

Which of the following can operate on BOTH the 2.4GHz and 5.8GHz frequencies?

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

Answer: D

Question No: 222 – (Topic 3)

Which of the following is the FASTEST Ethernet technology?

  1. 10GBaseSR

  2. 10BaseT

  3. 100BaseFX

  4. 1000BaseT

Answer: A

Question No: 223 – (Topic 3)

Which of the following is the radio frequency and data rate for 802.11g as specified by the IEEE standards?

  1. 2.0 GHz at 33 Mbps

  2. 2.4 GHz at 54 Mbps

  3. 2.4 GHz at 128 Mbps

  4. 5.0 GHz at 54 Mbps

Answer: B

Question No: 224 – (Topic 3)

The wireless network inside a large training room has been saturated with client requests. Most of the client requests are coming from smartphones and laptops. The network technician has been tasked with increasing the performance of the wireless access point. Which of the following would BEST accomplish this?

  1. Switch the channel

  2. Change frequencies

  3. Channel bonding

  4. Increase the signal

Answer: C

Question No: 225 – (Topic 3)

Which of the following cable types use pins 1 and 2 to transmit and 3 and 6 to receive?

  1. Coaxial

  2. Crossover

  3. Multimode fiber

  4. Straight-though

Answer: D

Question No: 226 – (Topic 3)

Which of the following 802.3 classifications has a MAXIMUM segment distance of 984 feet (300 meters)?

  1. 1000Base

  2. 100BaseFX

  3. 1000BaseSX

  4. 1000BaseT

Answer: C

Question No: 227 – (Topic 3)

Which of the following is used for SONET connections and requires a wavelength of 1310nm?

  1. 10GBASECX4

  2. 10GBASELX4

  3. 10GBASELW

  4. 10GBASESR

Answer: C

Question No: 228 – (Topic 3)

Which of the following cables covers the LONGEST distance?

  1. 10GBaseT

  2. 10GBaseFR

  3. 100BaseTX

  4. 1000BaseX

Answer: B

Question No: 229 – (Topic 3)

Ann, a technician, is installing network cables for an office building. Some of the cables are not showing active on the switch even when moved to different ports. Which of the following is MOST likely the cause?

  1. Port speed mismatch

  2. Faulty F-connectors

  3. Bad wiring

  4. Bad switch

Answer: C

Question No: 230 – (Topic 3)

Which of the following WAN technologies has synchronous up/down speeds?

  1. T1

  2. ADSL

  3. Satellite

  4. Cable broadband

Answer: A

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