Which of the following is correct when creating route summarization from the hub sites (a dual- hub scenario) to the spokes? (Choose three.)

Question

Options

• ADecrease the routing table of the spokes.
• BDecrease the routing table of the hubs.
• CIncrease the routing table of the spokes.
• DIncrease the routing table of the spoke.
• EProvide more optimal routing.
• FMay introduce suboptimal routing.
• GOptimize convergence time.

• A
  76% (13)
• B
  12% (2)
• C
  6% (1)
• F
  6% (1)

Explanation

When hub sites advertise summary routes toward spokes: (A) the spokes' routing tables shrink because many specific prefixes are replaced by a single summary route, reducing memory and processing overhead. (E) routing can become more optimal because spokes receive a concise, stable view of reachable prefixes rather than constant churn from specific route changes deep in the network. (G) convergence time is optimized because fewer routes mean faster SPF/DUAL calculations, and a single summary route remains stable even when specific routes behind the hub change. Option B is false - the hubs themselves maintain full routing tables, not summaries. Options C and D (increasing spoke routing tables) are the opposite of what summarization achieves. Option F (suboptimal routing) is a concern with summarization in certain scenarios but is not one of the three correct answers identified here.

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