Free JK0-023 Exam Braindumps
CompTIA Network+ certification Questions 276–280 (page: 57)

Updated On: 10-Feb-2026

Kim, an administrator, is attempting to connect a laptop to a server via RJ-45 ports on both a device and a CAT5 patch cable. All of the IP settings have been verified to be correct, yet there is a connectivity problem. Which of the following would MOST likely fix the IP connectivity problem?

  1. Wires 1, 2 and 3, 6 need to be swapped on one end of the connecting cable.
  2. Use the DB-9 port with a DB-9 to RJ-45 adapter on the server.
  3. Manually adjust the duplex mode on the server's link.
  4. Configure the laptop to receive a DHCP address from the server, rather than manually setting one.

Answer(s): A



Which of the following would be used to connect a singlemode fiber cable to a CAT6 connection?

  1. Media converter
  2. T1-crossover
  3. Multimode cable
  4. Coaxial

Answer(s): A



Which of the following WAN technologies has a MAXIMUM speed of 155.52Mbps?

  1. OC-3
  2. T3
  3. OC-12
  4. E1

Answer(s): A



Which of the following connectors is usable in SFP modules?

  1. ST
  2. LC
  3. LX
  4. SX

Answer(s): B



Which of the following would be considered a Demarc extension?

  1. A patch cable connecting a cable modem with a wireless router
  2. Patch panel wiring
  3. Punch down block wiring
  4. Copper wire connecting the main PSTN point of entry to a wall data outlet

Answer(s): D



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