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cs4024_2025T3_Q1_NA.pdf

Computer Networks · Quiz 1 · Sep 2025

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Question 81 MCQ · 1.0 marks

In computer networking, an **endpoint (or host)** refers to a machine running a user application.
  1. True
  2. False

A published solution is not available for this question yet.

Question 82 MCQ · 1.0 marks

The unique physical address of a device’s **network interface card (NIC)** is called a **MAC address.**
  1. True
  2. False

A published solution is not available for this question yet.

Question 83 MCQ · 1.0 marks

In packet-switched networks, buffer management is important mainly to prevent packet loss during traffic spikes.
  1. True
  2. False

A published solution is not available for this question yet.

Question 84 MCQ · 1.0 marks

In a TCP connection, a socket is uniquely identified only by the Source IP and Destination IP.
  1. True
  2. False

A published solution is not available for this question yet.

Question 85 MCQ · 1.0 marks

If **packet #7** is lost in **Selective Repeat ARQ** with a window size of **4**, only **1 packet** must be retransmitted.
  1. True
  2. False

A published solution is not available for this question yet.

Question 86 MCQ · 3.0 marks

A switch needs to transmit a packet of size 10,000 bits over a link with a transmission rate of 100 Mbps. What is the transmission delay?
  1. 5 × 10\(^{−5}\) seconds
  2. 1 × 10\(^{−4}\) seconds
  3. 2 × 10\(^{−6}\) seconds
  4. None of these

A published solution is not available for this question yet.

Question 87 MCQ · 4.0 marks

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  1. [[IMAGE:aaf697bffb63496d_4_6]]
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  2. [[IMAGE:aaf697bffb63496d_4_7]]
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  5. [[IMAGE:aaf697bffb63496d_4_10]]
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A published solution is not available for this question yet.

Question 88 MCQ · 4.0 marks

A link has a round-trip time (RTT) of 10 ms and a packet transmission time of 90 ms. In **Stop-and-** **Wait ARQ**, what percentage of the time is the sender actually transmitting (i.e., the utilization of the link)?
  1. 50%
  2. 75%
  3. 90%
  4. 95%

A published solution is not available for this question yet.

Question 89 MSQ · 2.0 marks

[[IMAGE:aaf697bffb63496d_5_11]]
Source diagram or notation
  1. P
  2. Q
  3. R
  4. T

A published solution is not available for this question yet.

Question 90 NAT · 3.0 marks

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    A published solution is not available for this question yet.

    Question 91 NAT · 3.0 marks

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      A published solution is not available for this question yet.

      Question 92 NAT · 3.0 marks

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        A published solution is not available for this question yet.

        Question 93 NAT · 3.0 marks

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          A published solution is not available for this question yet.

          Question 94 NAT · 3.0 marks

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            A published solution is not available for this question yet.

            Question 95 NAT · 3.0 marks

            [[IMAGE:aaf697bffb63496d_7_17]]
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              A published solution is not available for this question yet.

              Question 96 NAT · 4.0 marks

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                A published solution is not available for this question yet.