300-720 Exam Dumps - Securing Email with Cisco Email Security Appliance (300-720 SESA)

When Cisco ESA is configured to perform antivirus scanning, the default timeout value is 60 seconds, which means that Cisco ESA will wait for 60 seconds for the antivirus engine to scan a message before applying the configured action for unscannable messages, such as deliver, drop, or quarantine.

References: User Guide for AsyncOS 15.0 for Cisco Secure Email Gateway, page 7-3.

A benefit of implementing URL filtering on the ESA is that it provides URL reputation protection. URL filtering uses SenderBase, a web-based service that collects information about URLs and domains from various sources, to assign a reputation score and a category to each URL. Based on these attributes, you can configure content or message filters to take actions on messages containing malicious or undesirable URLs.

References: User Guide for AsyncOS 12.0 for Cisco Email Security Appliances - GD (General Deployment), Chapter: Protecting Against Malicious or Undesirable URLs, Section: URL-Related Protections and Controls

When CRES (Cisco Registered Envelope Service) is unavailable, Cisco ESA will requeue the message and attempt to resend it later, until the maximum number of retries or the maximum age of the message is reached. The message will not be sent in clear text, dropped, or encrypted by another appliance.

References: User Guide for AsyncOS 15.0 for Cisco Secure Email Gateway, page 12-8.

Load balancing and failover are two configurations that can be used on multiple LDAP servers to connect with Cisco ESA. Load balancing means that Cisco ESA will distribute the LDAP queries among the available LDAP servers in a round-robin fashion, improving the performance and efficiency of the LDAP queries. Failover means that Cisco ESA will switch to another LDAP server if the current one is unavailable or unresponsive, ensuring the continuity and reliability of the LDAP queries.

References: User Guide for AsyncOS 15.0 for Cisco Secure Email Gateway, page 10-8.

You can enter multiple host names to configure the LDAP servers for failover or load-balancing. Separate multiple entries with commas.