CompTIA DHTI+ Practice Questions - Question List

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81. Which of the following statements about Universal Powerline Bus, or UPB, is not true?
  1. UPB uses a 40-volt transmission line.
  2. UPB supports up to 64,000 addresses.
  3. UPB has a transmission reliability of over 99 percent.
  4. UPB is slower than PLC.
82. Which of the following display types is not commonly used on keyboard controls?
  1. LCD
  2. Plasma
  3. CRT
  4. LED
83. Which of the following should you do before you start using a voice-activated remote control that is just installed?
  1. IR range test
  2. RF range test
  3. Voice training
  4. Video range test
84. Which of the following is a power connector?
  1. Lug
  2. Receptacle
  3. Molded cable
  4. Backboard
85. What are the number of contacts in a RJ-61x jack?
  1. 4
  2. 6
  3. 8
  4. 10

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