Question 81 MCQ · 1.0 marks
In computer networking, an **endpoint (or host)** refers to a machine running a user application.
True
False
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Computer Networks · Quiz 1 · Sep 2025
Computer Networks · Quiz 1 · Sep 2025
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Question 82 MCQ · 1.0 marks
The unique physical address of a device’s **network interface card (NIC)** is called a **MAC address.**
True
False
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Question 83 MCQ · 1.0 marks
In packet-switched networks, buffer management is important mainly to prevent packet loss
during traffic spikes.
True
False
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Question 84 MCQ · 1.0 marks
In a TCP connection, a socket is uniquely identified only by the Source IP and Destination IP.
True
False
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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.
True
False
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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?
5 × 10\(^{−5}\) seconds
1 × 10\(^{−4}\) seconds
2 × 10\(^{−6}\) seconds
None of these
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Question 87 MCQ · 4.0 marks
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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)?
50%
75%
90%
95%
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Question 89 MSQ · 2.0 marks
P
Q
R
T
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Question 90 NAT · 3.0 marks
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Question 91 NAT · 3.0 marks
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Question 92 NAT · 3.0 marks
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Question 93 NAT · 3.0 marks
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Question 94 NAT · 3.0 marks
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Question 95 NAT · 3.0 marks
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Question 96 NAT · 4.0 marks
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