Which two caches must be cleared on a Cisco WSA to resolve an issue in processing requests? (Choose two.)
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A. B. C. D. E.AD.
https://www.cisco.com/c/en/us/support/docs/security/web-security-appliance/118259-technote-wsa-00.htmlThe Cisco Web Security Appliance (WSA) is a security solution that helps organizations to monitor, control, and protect their web traffic. The appliance is designed to perform a range of tasks, including content filtering, malware protection, and user authentication. To ensure the efficient operation of the appliance, it may be necessary to clear certain caches.
The question asks which two caches must be cleared on a Cisco WSA to resolve an issue in processing requests. Let's examine each option in turn:
A. Authentication cache: The authentication cache on a Cisco WSA stores user credentials, such as usernames and passwords, for a specified period of time. This cache allows the appliance to quickly authenticate users who have already logged in recently, without having to re-verify their credentials with the authentication server. If there is an issue with user authentication, clearing the authentication cache can sometimes help to resolve the problem.
B. Application cache: The application cache on a Cisco WSA stores frequently accessed web content, such as images and JavaScript files, to improve the performance of web browsing. This cache can sometimes become corrupted or outdated, which can lead to errors when loading web pages. Clearing the application cache can help to resolve these issues.
C. Logging cache: The logging cache on a Cisco WSA stores log data for a specified period of time. This cache allows administrators to review web traffic logs to identify security threats or policy violations. If there is an issue with logging, clearing the logging cache may be necessary to resolve it.
D. DNS cache: The DNS cache on a Cisco WSA stores the IP addresses of recently accessed domain names. This cache allows the appliance to quickly resolve domain names to their corresponding IP addresses without having to perform a full DNS lookup. If there is an issue with DNS resolution, clearing the DNS cache can sometimes help to resolve the problem.
E. HTTP cache: The HTTP cache on a Cisco WSA stores recently accessed web content, such as HTML pages and images, to improve the performance of web browsing. If there is an issue with loading web pages, clearing the HTTP cache can sometimes help to resolve the problem.
Based on the above descriptions, the two caches that should be cleared on a Cisco WSA to resolve an issue in processing requests are:
A. Authentication cache D. DNS cache
Clearing the authentication cache can help to resolve issues with user authentication, while clearing the DNS cache can help to resolve issues with DNS resolution. However, it is important to note that clearing caches should be done with caution, as it can sometimes have unintended consequences, such as increased network traffic or slower web browsing.