Free JK0-023 Exam Braindumps
CompTIA Network+ certification Questions 311–315 (page: 64)

Updated On: 10-Feb-2026

CAT6 has how many twisted copper pairs?

  1. 2
  2. 4
  3. 6
  4. 8
  5. 16

Answer(s): B



Which of the following connector types would Sandy, a network technician, use to connect a serial cable?

  1. RJ-11
  2. BNC
  3. LC
  4. DB-9

Answer(s): D



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

  1. 10GBASECX4
  2. 10GBASELX4
  3. 10GBASELW
  4. 10GBASESR

Answer(s): C



CAT6 Ethernet cabling has a rated maximum transmission capability of:

  1. 10Mbps
  2. 100Mbps
  3. 20, 000Mbps
  4. 10, 000Mbps

Answer(s): D



A network administrator has just been notified about the loss of Internet connectivity. Another technician had just performed non-scheduled maintenance and mentioned that some cabling may have been moved. Which of the following MOST likely caused the loss of Internet connectivity?

  1. Broadcast storm
  2. TX/RX cables reversed
  3. Mismatched MTU
  4. Incorrect routing table

Answer(s): B



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