1.5 Compare TCP to UDP 200-301 Practice Questions (Page 4)

Questions 16–20

1. 16application · medium

   A network engineer is comparing two applications: one transfers large files and the other streams live audio. The engineer notes that the file-transfer application uses TCP and the audio application uses UDP. What is the primary reason for this difference?

   • ATCP is faster than UDP for large transfers
   • BUDP provides lower latency, while TCP provides reliability
   • CUDP guarantees ordering, which is needed for audio
   • DTCP is connectionless, making it easier to scale
   Reveal Solution Discussion Select an answer first
2. 17foundation · easy

   Which TCP feature is responsible for preventing a fast sender from overwhelming a slow receiver?

   • AThree-way handshake
   • BSequence numbers
   • CFlow control
   • DError recovery
   Reveal Solution Discussion Select an answer first
4. 18application · medium

   A network administrator is analyzing a packet capture of a web server connection. The capture shows a three-packet exchange at the start of the session: SYN, SYN-ACK, ACK. What is the purpose of this exchange?

   • ATo establish a reliable connection and synchronize sequence numbers
   • BTo negotiate the maximum segment size for the session
   • CTo authenticate the client to the server
   • DTo encrypt the data that will be transmitted
   Reveal Solution Discussion Select an answer first
5. 19expert · hard

   A network administrator is troubleshooting a TCP connection that is experiencing frequent timeouts and retransmissions. The administrator suspects that the network is dropping packets. Which TCP feature is most directly responsible for detecting and recovering from packet loss?

   • AFlow control, which adjusts the window size to prevent congestion.
   • BUDP's checksum, which detects corrupted packets.
   • CSequence numbers and acknowledgments, which allow the sender to detect missing segments and retransmit them.
   • DThe three-way handshake, which establishes the connection.
   Reveal Solution Discussion Select an answer first
6. 20foundation · easy

   What is a fundamental difference between TCP and UDP?

   • AUDP guarantees delivery of datagrams, while TCP only makes a best-effort attempt.
   • BTCP uses a fixed header size, while UDP uses a variable header size.
   • CTCP provides ordered delivery of segments, while UDP provides no ordering of datagrams.
   • DUDP establishes a session before sending data, while TCP sends data without a prior session.
   Reveal Solution Discussion Select an answer first