14.1.7 Check Your Understanding – Transportation of Data Answers

1. Which layer is responsible for establishing a temporary communication session between the source and destination host applications?

  • application layer
  • data link layer
  • network layer
  • physical layer
  • transport layer

Explanation: The transport layer is responsible for establishing a temporary communication session between the source and destination host applications.

2. Which three are transport layer responsibilities? (Choose three.)

  • conversation multiplexing
  • identifying frames
  • identifying routing information
  • segmenting data and reassembling segments
  • tracking individual conversations

Explanation: The transport layer is responsible for conversation multiplexing, segmenting data and reassembling segments, and tracking individual conversations.

3. Which transport layer protocol statement is true?

  • TCP has fewer fields than UDP.
  • TCP is faster than UDP.
  • UDP is a best-effort delivery protocol.
  • UDP provides reliability.

Explanation: UDP is a best-effort delivery protocol while TCP is a reliable transport protocol.

4. Which transport layer protocol would be used for VoIP applications?

  • Session Information Protocol (SIP)
  • Transmission Control Protocol (TCP)
  • User Datagram Protocol (UDP)
  • VoIP Transfer Protocol

Explanation: UDP would be used by time sensitive VoIP applications.

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