Which of the following statements BEST describes the IntServ model?

Question

Options

• AHas the ability to distinguish traffic in 32 different ways.
• BUses the RSVP protocol to create microflows through a network.
• CHas the ability to manually configure foiwarding classes through a network.
• DUses the RSVP protocol to create macroflows through a network.

• A
  2% (1)
• B
  91% (48)
• C
  6% (3)
• D
  2% (1)

Explanation

IntServ (Integrated Services) uses RSVP (Resource Reservation Protocol) to reserve network resources for individual microflows - meaning each application flow gets its own dedicated, end-to-end resource reservation, which is exactly what option B describes.

Why the distractors are wrong:

• A is wrong - distinguishing traffic in a fixed number of ways describes DiffServ, which uses a 6-bit DSCP field (64 possible codepoints), not IntServ.
• C is wrong - manually configuring forwarding classes is a DiffServ behavior, where traffic is grouped into aggregate classes (not individual flows).
• D is a trap - it correctly names RSVP but pairs it with macroflows, which belong to DiffServ's aggregated approach. IntServ is specifically about microflows (per-flow granularity).

Memory tip: Think "Int"Serv = "Individual" flows - IntServ treats each flow as a unique citizen requiring its own RSVP reservation, while DiffServ lumps traffic into macro-level classes. If you remember micro = IntServ and macro = DiffServ, the RSVP-based options become easy to separate.

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