set gsib vServer vServer-GSLB-1 -MIR ENABLED What will the Citrix ADC appliance send when the above command is executed?

Question

Options

• AThe Remote GSLB service as the first record in the response and adds the remaining active
• BThe Local GSLB service as the first record in the response and adds the remaining active services
• CThe best global server load balancing (GSLB) service as the first record in the response, and the
• DOnly the best GSLB service in the response

• A
  10% (4)
• B
  3% (1)
• C
  79% (31)
• D
  8% (3)

Explanation

MIR (Multiple IP Response) is the key concept here. When -MIR ENABLED is set on a GSLB vServer, the Citrix ADC returns all active GSLB service IP addresses in the DNS response - not just one - placing the best-performing (highest-priority) service first, followed by the remaining active services. This matches option C exactly.

Why the distractors are wrong:

• A is wrong because MIR has no concept of "Remote first" - it doesn't bias toward remote sites over local ones.
• B is wrong for the same reason in reverse - MIR doesn't prioritize local services; it orders by the GSLB load balancing algorithm result (i.e., the "best" service wins the first slot).
• D is the behavior when MIR is disabled (the default), where only the single best GSLB service IP is returned. Enabling MIR is specifically what changes this behavior to multi-IP responses.

Memory tip: Think of MIR as "More IPs Returned." Disabled = one winner; Enabled = the winner leads the pack, but everyone gets listed. The "best" service always heads the list, making C the only option that captures both the ordering and the completeness of the response.

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