Concepts of TCP/IP and the Link Layer GCIA Practice Questions (Page 1)

Questions 1–5

1. 1application · medium

   A developer is designing a real-time voice application that must minimize delay and tolerate some packet loss. The application does not require retransmission of lost packets. Which transport protocol should the developer choose, and why?

   • AUDP, because it has low overhead and no retransmission, reducing delay.
   • BTCP, because it guarantees delivery and ordering of packets.
   • CUDP, because it provides flow control and congestion avoidance.
   • DTCP, because it uses a smaller header than UDP.
   Reveal Solution Discussion Select an answer first
2. 2foundation · easy

   Which IPv4 header field indicates the version of IP being used?

   • AType of Service
   • BProtocol
   • CVersion
   • DIHL
   Reveal Solution Discussion Select an answer first
4. 3foundation · easy

   Which address is used by the link layer to deliver a frame within a local network?

   • APort number
   • BIP address
   • CDNS name
   • DMAC address
   Reveal Solution Discussion Select an answer first
5. 4foundation · easy

   In a TCP connection, what does the destination port number identify?

   • AThe application on the receiving host
   • BThe MAC address of the destination
   • CThe IP address of the destination
   • DThe network path the packet takes
   Reveal Solution Discussion Select an answer first
6. 5foundation · easy

   During encapsulation, what is added to the data as it moves down the TCP/IP stack?

   • AOnly a single header at the transport layer
   • BNo additional information is added
   • CHeaders at each layer, and a trailer at the link layer
   • DOnly a trailer at the network layer
   Reveal Solution Discussion Select an answer first