Full Access Citrix 1Y0-241 Tutorials

Correct Answer: B. MIR DISABLED

Short Explanation with reference:

MIR (Multiple IP Response) is a feature that allows the Citrix ADC appliance to send the IP addresses of all the active services in the DNS response when a client requests the IP address of a GSLB (Global Server Load Balancing) virtual server. This can improve the performance and availability of the GSLB service, as the client can choose the best service based on its own criteria, such as round-trip time or proximity. However, MIR can also cause some issues, such as DNS caching, client-side load balancing, and security risks. Therefore, a Citrix Administrator can use the set gslb vServer<name> -MIR DISABLED parameter to change this behavior and disable MIR for a specific GSLB virtual server. This will make the appliance send only one IP address in the DNS response, which is selected based on the configured load balancing method. Therefore, the correct answer is B. MIR DISABLED.

Configuring multiple IP addresses for a GSLB domain | NetScaler : Global Server Load Balancing - Citrix Docs : How to Configure Multiple IP Response (MIR) for GSLB - Citrix Customer Support : Configuring GSLB load balancing methods | NetScaler

Correct Answer: A. It replaces the date header in the HTTP response with the Citrix ADC system time in a conventional date format.

Short Explanation with reference:

A rewrite action is a set of rules that defines how the Citrix ADC appliance modifies the requests and responses that it processes. A rewrite action can use different parameters, such as target, expression, and pattern, to specify what part of the message to modify and how to modify it. The target parameter specifies the part of the message that is modified, such as the header or the body. The expression parameter specifies the new value that replaces the target. The pattern parameter specifies a string or a regular expression that matches the part of the target that is replaced.

In this scenario, the administrator configured a rewrite action as follows:

add rewrite action sync_date replace http.res.date.sys.time

This rewrite action uses the replace parameter, which replaces the entire target with the expression. The target is http.res.date, which is the date header in the HTTP response. The expression is sys.time, which is a built-in function that returns the Citrix ADC system time in a conventional date format, such as “Wed, 06 Sep 2023 12:45:12 GMT”. Therefore, this rewrite action replaces the date header in the HTTP response with the Citrix ADC system time in a conventional date format. This can be useful for synchronizing the time between the server and the client, or for preventing caching issues.

Therefore, the correct way to interpret this rewrite action is A. It replaces the date header in the HTTP response with the Citrix ADC system time in a conventional date format.

Configuring rewrite actions | NetScaler : How to Configure Rewrite Action - Citrix Customer Support : How to Use Built-in Functions in Expressions - Citrix Customer Support