On the Cisco ASR 5000, which three features help to ensure high availability? (Choose three.)

Question

Options

• Ainter-chassis redundancy
• Bonline software upgrades are not supported
• Cno single point of failure
• Dvirtual memory protects software tasks
• Eterminated tasks have to be manually restarted
• Fno session recovery for common services

• A
  86% (24)
• B
  4% (1)
• E
  4% (1)
• F
  7% (2)

Explanation

Cisco ASR 5000 High Availability

The ASR 5000 is built around three real HA pillars: inter-chassis redundancy (A) allows a standby chassis to seamlessly take over from a failed active chassis; no single point of failure (C) is achieved through redundant route processors, fabrics, and power supplies; and virtual memory protection (D) isolates each software task in its own protected memory space so a single crashing process cannot bring down the system.

The distractors all describe the opposite of how the ASR 5000 actually behaves - which is the trick:

• B is false: the ASR 5000 does support online (in-service) software upgrades (ISSU)
• E is false: the system automatically restarts terminated tasks - no manual intervention needed
• F is false: session recovery for common services is supported, preserving active subscriber sessions during failures

Memory tip: The wrong answers (B, E, F) all describe limitations or manual burdens - if a choice makes the ASR 5000 sound less capable or more fragile, it's a distractor. True HA features are always about automation, redundancy, and isolation.

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