Which portfolio of Cisco routers supports Aggregation?

Question

Options

• ACSR 1000V
• BASR 1000
• CISR 4000
• DISR 900

• A
  3% (1)
• B
  3% (1)
• C
  88% (30)
• D
  6% (2)

Explanation

Note on the provided answer: There appears to be an error in the stated correct answer. Based on standard Cisco nomenclature, the correct answer should be B. ASR 1000, not C.

ASR literally stands for Aggregation Services Router - Cisco's own naming convention makes this the definitive answer for any question about aggregation support. The ASR 1000 series is purpose-built for WAN aggregation and service provider edge roles, handling high-throughput traffic aggregation from multiple downstream devices.

Why the other options are wrong:

• A. CSR 1000V is a Cloud Services Router - a virtual router for cloud and hybrid environments, not aggregation.
• C. ISR 4000 is an Integrated Services Router targeting branch offices with features like SD-WAN, security, and voice - not an aggregation platform.
• D. ISR 900 is a small-footprint branch/edge router for small offices - far from aggregation scale.

Memory tip: Just decode the acronyms - ASR = Aggregation Services Router. Cisco's naming directly tells you the primary use case. For exam questions on router roles, match the letter: ASR → Aggregation, ISR → Integrated branch services, CSR → Cloud.

If this question came from a specific Cisco study guide, I'd recommend cross-referencing it, as C (ISR 4000) contradicts standard Cisco product taxonomy.

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