Scenario 3 Data is transmitted over the internet as a series of packets. Each packet is sent to its destination via the best available route. The decision on the best available route is made by a…

Question

Options

• ATesting that the receivers PC can store emails routed to it.
• BTesting that large organisations can scan incoming files routed to them for viruses.
• CTesting that packets are delivered by the routers in the required timescales.
• DTesting that files can be sent in any language.

• A
  6% (2)
• B
  13% (4)
• C
  77% (24)
• D
  3% (1)

Explanation

Option C is correct because the scenario explicitly states that routers handle millions of packets simultaneously, making timely delivery a core function and a significant performance testing challenge - you must verify the router meets required throughput and latency under realistic, high-volume load conditions.

Why the distractors are wrong:

• A is wrong because storing emails on a receiver's PC is the responsibility of the end device and mail client, not the router - it falls outside the router's application domain entirely.
• B is wrong because virus scanning is performed by security software at the destination organisation, not by the routing infrastructure described in the scenario.
• D is wrong because file language/encoding is an application-layer concern handled by the sending and receiving systems; routers simply forward packets regardless of content.

Memory tip: The phrase "application domain" is the key - always ask "what does this specific system actually do?" Routers route packets fast and at scale, so the testing challenge must relate to speed and volume, not what happens to content before or after routing.

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