1.5 Compare TCP to UDP 200-301 Practice Questions (Page 2)

Questions 6–10

1. 6application · medium

   A company deploys a new inventory-management web application. The application must display real-time stock levels to employees, and the data is critical—if a request is lost, the employee must see an error rather than stale data. Which transport protocol should the application use?

   • AUDP, because it supports connection-oriented sessions for tracking requests
   • BTCP, because it minimizes latency for real-time updates
   • CUDP, because it provides faster delivery with lower overhead
   • DTCP, because it provides reliable delivery and error recovery
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2. 7foundation · easy

   Which statement correctly compares TCP and UDP?

   • ATCP is connection-oriented and provides reliable, ordered delivery, while UDP is connectionless and provides best-effort delivery.
   • BTCP is connectionless and provides low overhead, while UDP is connection-oriented and provides error recovery.
   • CTCP is connectionless and provides best-effort delivery, while UDP is connection-oriented and guarantees ordered delivery.
   • DBoth TCP and UDP provide reliable, ordered delivery, but TCP uses a three-way handshake while UDP does not.
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4. 8application · medium

   A network engineer is analyzing a TCP connection and notices that the sender is reducing its window size. What is the most likely reason for this behavior?

   • AThe sender is experiencing network congestion and is using flow control to reduce the amount of data sent.
   • BThe sender is using UDP, which does not support flow control.
   • CThe receiver is requesting retransmission of lost segments.
   • DThe receiver is using a larger buffer to accommodate more data.
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5. 9application · medium

   A network engineer is comparing TCP and UDP for a new monitoring system that sends periodic status updates. The updates are small and can be lost without significant impact, but the system must minimize bandwidth usage. Which protocol should the engineer choose?

   • AUDP, because it is connectionless and has low overhead, reducing bandwidth usage.
   • BUDP, because it guarantees delivery and ordering of packets.
   • CTCP, because it uses sequence numbers to order packets, ensuring updates arrive in order.
   • DTCP, because it provides reliable delivery and ensures every status update is received.
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6. 10expert · hard

   A company is designing a system that collects sensor data from remote devices. The data is sent every second, and the server must process it in real time. However, the company also needs to send occasional configuration commands to the devices, and these commands must be reliably delivered. The engineer proposes using UDP for sensor data and TCP for configuration commands. What is the primary advantage of this mixed approach?

   • AIt allows the sensor data to be delivered with low latency while ensuring commands are not lost
   • BIt reduces the total number of packets on the network
   • CIt eliminates the need for sequence numbers in the sensor data
   • DIt simplifies firewall configuration by using only two ports
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