LAN Switching and Wireless

161. A sine wave is _________.

  1. periodic and continuous
  2. aperiodic and continuous
  3. periodic and discrete
  4. aperiodic and discrete

Correct answer: (C)
periodic and discrete

162. A spanning tree is a graph in which there is no _________.

  1. node
  2. branch
  3. loop
  4. arc

Correct answer: (C)
loop

163. A switch in a datagram network uses a routing table that is based on the _________ address.

  1. source
  2. destination
  3. local
  4. none of the above

Correct answer: (B)
destination

164. A switched WAN is normally implemented as a _________ network.

  1. virtual-circuit
  2. datagram
  3. circuit-switched
  4. none of the above

Correct answer: (A)
virtual-circuit

165. A television broadcast is an example of _________ transmission.

  1. simplex
  2. half-duplex
  3. full-duplex
  4. automatic

Correct answer: (A)
simplex

166. A three-layer switch is a kind of _________.

  1. repeater
  2. bridge
  3. router
  4. none of the above

Correct answer: (C)
router

167. A traditional cable TV network transmits signals _________.

  1. upstream
  2. downstream
  3. upstream and downstream
  4. none of the above

Correct answer: (B)
downstream

168. A two-layer switch is a _________.

  1. repeater
  2. bridge
  3. router
  4. none of the above

Correct answer: (B)
bridge

169. A virtual local area network (VLAN) is configured by _________.

  1. software
  2. physical wiring
  3. hardware
  4. none of the above

Correct answer: (A)
software

170. A(n) _________ is the interface between a user and an ATM switch.

  1. UNI
  2. NNI
  3. NNN
  4. None of the above

Correct answer: (A)
UNI

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