Citrix Endpoint Management Administration — Question 68

Scenario: A Citrix Engineer needs to limit Front End Optimization (FEO) on a web application to mobile users with mobile devices. The engineer deckles to create and bind an FEO policy.

Which advanced expression should the engineer use in the FEO policy?

Answer options

• A. CLIENT.IP.SRC.IS_MOBILE
• B. HTTP.REQ.HEADER(“User-Agent”).CONTAINS(“IOS”)||HTTP.REQ.HEADER(“User-Agent”).CONTAINS(“Android”)
• C. HTTP.REQ.HEADER(“User-Agent”).CONTAINS(“Mobile”) && CLIENT.IP.SRC.IN_SUBNET(192.168.10.0/24).NOT
• D. HTTP.REQ.HEADER(“User-Agent”).NOTCONTAINS(“Windows”) && CLIENT.IS_MOBILE

Correct answer: B

Explanation

The correct answer is B because it specifically checks if the User-Agent header contains identifiers for mobile operating systems, ensuring that only mobile users are targeted for FEO. Option A only checks if the source IP is mobile without considering the User-Agent, while C includes a subnet check that is unnecessary. Option D incorrectly combines a negative check for Windows with a mobile check, which may exclude valid mobile users.