Free CompTIA JK0-023 Exam Braindumps (page: 47)

Which of the following is an invalid MAC address?

  1. AA:CE:58:FD:90:08
  2. 44:98:3E:F8:33:23
  3. 56:AD:BX:89:55:54
  4. 94:9E:FE:EE:8C:DF

Answer(s): C



Users notice a problem with their network connectivity when additional lights are turned on. Which of the following would be the cause for this problem?

  1. DDOS
  2. Cross talk
  3. Open short
  4. EMI

Answer(s): D



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(s): B



Which of the following would the telecommunications carrier use to segregate customer traffic over long fiber links?

  1. VLAN
  2. MPLS
  3. VPN
  4. PSTN

Answer(s): B






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