Which two settings can be used when creating a Cache Content group? (Choose two.)

A Citrix Engineer has received the following message after setting up Application Firewall in Learning mode.
August 28 6 03:14:27 <local0.info>XXX.0.0.2.08/28/2017:03:14:27 GMT VPXExtProd01 0-PPE-0:
default GUI CMD_EXECUTED 1670370 0: User CitrixAdmin- Remote_ip XXX.19.XXX.XXX- Command "show appfwlearningdata WebPub_vs_af_1 startURL"- Status "ERROR:
Communication error with aslearn"
What can the engineer perform to resolve the issue?

Which security model should a Citrix Engineer implement to make sure that no known attack patterns pass through Citrix Web App Firewall?

A Citrix Engineer has deployed Front-end Optimization on NetScaler. The following are the snippets of the content before and after optimization.
Before Optimization:

After Optimization:

Which optimization technique has been applied to the content?

A Citrix Engineer needs to deploy the NetScaler Management and Analytics System (NMAS) in their company environment to ensure that NMAS provides uninterrupted operation in all situations.
Which deployment type can meet this requirement?