Free Citrix 1Y0-241 Practice Exam with Questions & Answers | Set: 2

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

https://docs.citrix.com/en-us/citrix-adc/current-release/appexpert/http-callout/configuring-http-callouts.html

During startup of a virtual server, or whenever the state of a virtual server changes, the virtual server can initially use the round-robin method to distribute the client requests among the physical servers. This type of distribution, referred to as startup round robin, helps prevent unnecessary load on a single server as the initial requests are served. After using the round-robin method at the startup, the virtual server switches to the loadbalancing method specified on the virtual server

Correct Answer: D. Round-robin

Short Explanation with reference:

A load-balancing vServer is a virtual server that distributes the incoming traffic among a group of services that provide the same content or functionality. A load-balancing vServer can use different load-balancing methods to select the best service for each request, based on various criteria, such as availability, performance, or load. The least bandwidth load-balancing method selects the service that is currently handling the least amount of traffic, measured in megabits per second.

However, during the startup of a vServer, the least bandwidth load-balancing method is not used by default. This is because the Citrix ADC appliance does not have enough data to calculate the bandwidth usage of each service at the beginning. Therefore, the appliance uses the round-robin load-balancing method by default, which selects the services in a circular order, without any weighting or priority. The round-robin load-balancing method is also used as a fallback method when other load-balancing methods fail or are not applicable.

Therefore, the correct answer is D. Round-robin.

Load balancing methods | NetScaler : How Load Balancing Methods Work - Citrix Customer Support

https://support.citrix.com/article/CTX101990

https://support.citrix.com/article/CTX109013/troubleshooting-netscaler-high-availability-ha-issues

Reduces the image to the size indicated in the image tag by Citrix ADC, enabling client browsers to load images faster. https://docs.citrix.com/en-us/citrix-adc/current-release/optimization/front-end-optimization.html

https://docs.citrix.com/en-us/citrix-adc/current-release/load-balancing/load-balancing-advanced-settings/graceful-shutdown.html

https://support.citrix.com/article/CTX226058