City Guilds Model Questions Vol1 2017 Information Technology Question 14

Practice objective / multiple choice question 14 from the 2017 City Guilds Model Questions Vol1 Information Technology examination.

City Guilds Model Questions Vol1 2017 Information Technology Objective / Multiple Choice Hard Difficulty
Question 14 CITY_GUILDS_MODEL_QUESTIONS_VOL1 • 2017 • INFORMATION_TECHNOLOGY • objective

A packet of \(1500\) bytes is transmitted over a link that is \(2500\) km long. The link bandwidth is \(10\) Mbps and the signal propagation speed is \(2\times10^{8}\) m/s. Each router adds a processing delay of \(2\) ms and an average queueing delay of \(5\) ms.\ (a) Compute the total end‑to‑end delay for the packet.\ (b) If the bandwidth is upgraded to \(20\) Mbps while all other parameters remain unchanged, what is the new total delay?\ (c) Which component of the delay is responsible for the greatest reduction when the bandwidth is doubled?

Answer Options

A. (a) 22.5 ms; (b) 21.9 ms; (c) propagation delay
B. (a) 21.0 ms; (b) 20.4 ms; (c) queueing delay
C. (a) 19.8 ms; (b) 19.2 ms; (c) processing delay
Correct Answer D. (a) 20.7 ms; (b) 20.1 ms; (c) transmission delay
Correct Answer
D
Correct Option:
(a) 20.7 ms; (b) 20.1 ms; (c) transmission delay

About This Question

This is City Guilds Model Questions Vol1 2017 Information Technology Question 14. It is one of the objective questions from the 2017 City Guilds Model Questions Vol1 Information Technology examination.

Difficulty level: Hard .

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