Scenario: A Citrix Administrator is managing a Citrix ADC SDX running eight Citrix ADC instances. The administrator needs to upgrade the firmware on the instances. However, the administrator is…

Question

Options

• AThe Citrix ADC instances must be upgraded simultaneously.
• BThe Citrix ADC instances can be upgraded on an individual basis, allowing all instances to run
• CThe Citrix ADC instances can be upgraded from the lights out management (LOM) port and Citrix
• DThe Citrix ADC instances can be upgraded at the SDX management level, allowing all instances to

• A
  2% (1)
• B
  95% (57)
• D
  3% (2)

Explanation

Option B is correct because the Citrix ADC SDX platform is specifically designed to allow each hosted ADC instance to be upgraded independently through the SDX Management Service, meaning different instances can run different firmware versions simultaneously - eliminating the need for a risky all-at-once upgrade window.

Option A is incorrect because it directly contradicts the core value proposition of SDX; requiring simultaneous upgrades would eliminate the platform's flexibility and increase downtime risk. Option C is a distractor because the Lights Out Management (LOM) port is an out-of-band hardware management interface used for remote power cycling and console access, not for upgrading ADC instance firmware. Option D is misleading because while SDX does have a management-level interface, it does not force all instances to upgrade together - the flexibility lies precisely in per-instance control, not bulk enforcement.

Memory tip: Think of SDX as a "hotel for ADC instances" - just like hotel guests can check in and out independently, each ADC instance on an SDX can be upgraded on its own schedule without affecting the others.

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