LAN Switching and Wireless

131. A _________ switch combines crossbar switches in several (normally three) stages.

  1. multistage
  2. multiple crossbar
  3. multiple path
  4. none of the above

Correct answer: (A)
multistage

132. A _________ switch combines space-division and time-division technologies to take advantage of the best of both.

  1. TST
  2. SSS
  3. TTT
  4. none of the above

Correct answer: (A)
TST

133. A _________ switch is a faster and more sophisticated router.

  1. two-layer
  2. three-layer
  3. four-layer
  4. none of the above

Correct answer: (B)
three-layer

134. A _________ switch is a multistage switch with microswitches at each stage that route the packets based on the output port represented as a binary string.

  1. crossbar
  2. TSI
  3. banyan
  4. none of the above

Correct answer: (C)
banyan

135. A _________ bridge can forward and filter frames and automatically build its forwarding table.

  1. simple
  2. dual
  3. transparent
  4. none of the above

Correct answer: (C)
transparent

136. A _________ is a device in which the stations are completely unaware of its existence.

  1. passive hub
  2. repeater
  3. simple bridge
  4. transparent bridge

Correct answer: (D)
transparent bridge

137. A _________ is normally a computer that operates in all five layers of the Internet model or seven layers of OSI model.

  1. repeater
  2. bridge
  3. router
  4. gateway

Correct answer: (D)
gateway

138. A _________ link acts as a LAN in a remote backbone connected by remote bridges.

  1. point-to-point
  2. multipoint
  3. multidrop
  4. none of the above

Correct answer: (A)
point-to-point

139. A _________ operates in both the physical and the data link layer.

  1. passive hub
  2. repeater
  3. bridge
  4. router

Correct answer: (C)
bridge

140. A __________ forwards every frame; it has no filtering capability.

  1. passive hub
  2. repeater
  3. bridge
  4. router

Correct answer: (B)
repeater

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