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201 · Question #318

Which two statements describe differences between the active and standby systems? (Choose two.)

The correct answer is C. Virtual server addresses are hosted only by the active system. E. Floating selfIP addresses are hosted only by the active system.. In an active-standby BIG-IP configuration, the active system exclusively hosts virtual server addresses and floating self-IP addresses, while the standby system remains passive.

Section 6: Configure High Availability

Question

Which two statements describe differences between the active and standby systems? (Choose two.)

Options

  • AMonitors are performed only by the active system.
  • BFailover triggers only cause changes on the active system.
  • CVirtual server addresses are hosted only by the active system.
  • DConfiguration changes can only be made on the active system.
  • EFloating selfIP addresses are hosted only by the active system.

How the community answered

(58 responses)
  • A
    2% (1)
  • B
    3% (2)
  • C
    93% (54)
  • D
    2% (1)

Why each option

In an active-standby BIG-IP configuration, the active system exclusively hosts virtual server addresses and floating self-IP addresses, while the standby system remains passive.

AMonitors are performed only by the active system.

Monitors are typically performed by both active and standby systems to independently assess the health of pool members and ensure the standby is ready to take over.

BFailover triggers only cause changes on the active system.

Failover triggers cause the standby system to become active, meaning changes occur on both the former active (now standby) and the new active system.

CVirtual server addresses are hosted only by the active system.Correct

Virtual server addresses are the destination IPs clients connect to. Only the active system responds to ARP requests for these addresses and processes traffic directed to them.

DConfiguration changes can only be made on the active system.

While best practice is to make configuration changes on the active system, it is technically possible to make changes on the standby directly, though this can lead to synchronization issues.

EFloating selfIP addresses are hosted only by the active system.Correct

Floating self-IP addresses are used for network communication that must persist across a failover event. These are hosted by the active system and migrate to the new active system upon failover.

Concept tested: F5 BIG-IP active-standby differences

Source: https://clouddocs.f5.com/clouddocs/big-ip-system-and-application-security-manager/latest/bigip_ha_configuration.html

Topics

#active/standby#high availability#virtual server#floating self-IP

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