City Guilds Model Questions Vol1 2018 Information Technology Question 30
Practice objective / multiple choice question 30 from the 2018 City Guilds Model Questions Vol1 Information Technology examination.
A user accesses a remote server over a path that contains three identical links, each \(2000\) km long. The propagation speed on the current copper links is \(1.5\times10^{8}\) m/s, the bandwidth is \(10\) Mbps, the packet size is \(1500\) bytes, and each router adds a processing delay of \(2\) ms. Queuing delay is negligible.\n\n(a) Compute the current round‑trip time (RTT) in milliseconds.\n(b) The organisation can either (i) upgrade the bandwidth of all three links to \(100\) Mbps, or (ii) replace the copper links with fiber that raises the propagation speed to \(2.5\times10^{8}\) m/s. Which single upgrade will reduce the RTT by at least 30 %? State the chosen upgrade.
Answer Options
About This Question
This is City Guilds Model Questions Vol1 2018 Information Technology Question 30. It is one of the objective questions from the 2018 City Guilds Model Questions Vol1 Information Technology examination.
Difficulty level: Hard .
Master the Exam!
You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.