Pass the Cisco CCNP Security 300-720 Questions and answers with CertsForce

The PVO cannot be enabled and shows this type of error message.

Unable to proceed with Centralized Policy, Virus and Outbreak Quarantines

configuration as host1 and host2 in Cluster have content filters / DLP actions

available at a level different from the cluster Level.

The error message can indicate that one of the hosts does not have a DLP feature key applied and DLP is disabled. The solution is to add the missing feature key and apply DLP settings identical as on the host that has the feature key applied. This feature key inconsistency might have the same effect with Outbreak Filters, Sophos Antivirus, and other feature keys.

https://www.cisco.com/c/en/us/support/docs/security/email-security-appliance/118026-technote-esa-00.html

 The reason why the CEO did not receive an important message expected from a trusted sender after adding them to a safelist is beca use end-user safelists apply to antispam engines only. End-user safelists are lists of sender addresses or domains that end users can create and manage through their quarantine accounts or email clients. End-user safelists allow end users to accept or exem pt messages from certain senders or domains from being identified as spam by the antispam engines. However, end-user safelists do not affect other filtering engines such as antivirus, outbreak filters, or content filters. References =  User Guide for AsyncOS 12.0 for Cisco Email Security Appliances - GD (General Deployment) - Safelists and Blocklists [Cisco Secure Email Gateway] - Cisco

With DomainKeys or DKIM email authentication, the sender signs the email using public key cryptography. Configuring DomainKeys and DKIM Signing A signing key is the private key stored on the appliance. https://www.cisco.com/c/en/us/td/docs/security/esa/esa11-1/user_guide/b_ESA_Admin_Guide_11_1/b_ESA_Admin_Guide_chapter_010101.html?bookSearch=true

The default behavior of any listener for TLS communication is B. off. This means that TLS is not allowed for incoming connections to the listener and connection s to the listener do not require encrypted Simple Mail Transfer Protocol (SMTP) conversations. This is stated in the web search result  1 .  To enable TLS for a listener, you need to configure the Use TLS option in the mail flow policy settings for the listener on the Mail P olicies > HAT Overview page 1 .  You can choose from three different settings for TLS: No, Preferred, or Required 1 .

Spam threshold is a setting that determines the minimum score that a message must have to be classified as spam by Cisco ESA. The lower the threshold, the more aggressive the spam detection is.

one of the methods to enable Cisco SecureX integration on a Cisco Secure Email Gateway appliance is to use the Threat Response service 1 .  This s ervice allows the appliance to send telemetry data to the SecureX cloud and provide visibility and response capabilities across multiple security products 1 .  To use this service, the administrator needs to perform the following steps 1 :

Enable the Threat Respons e service: The administrator needs to go to Network > Cloud Service Settings and enable the Threat Response service.  This will generate a registration token that can be use d to register the appliance with SecureX 1 .

Select the correct Threat Response Server: The administrator needs to select the appropriate Threat Response server based on the region where the appliance is located.  The availa ble regions are North America, Europe, and Asia Pacific 1 .

A TXT record is a type of DNS record that contains arbitrary text data that can be used for various purposes such as verification, configuration, or authentication. A TXT record can contain the DKIM public key per RFC 6376, which is used to verify the digital signature of an email message generated by the DKIM private key of the sender domain.

The other options are not valid because:

A. A CNAME record is a type of DNS record that maps an alias name to a canonical name or another alias name. It does not contain any DKIM public key information.

B. An AAAA record is a type of DNS record that maps a hostname to an IPv6 address. It does not contain any DKIM public key information.

D. A PTR record is a type of DNS record that maps an IP address to a hostname, which is the reverse of an A or AAAA record. It does not contain any DKIM public key information.

A content filter action is an operation that Cisco ESA performs on a message if it matches the conditions of a content filter rule, such as headers, envelope, body, attachments, etc.

Quarantine is a valid content filter action that allows Cisco ESA to store the message in a quarantine area for further review or release by an administrator or an end user.

The other options are not valid content filter actions on Cisco ESA.