便利な300-720試験ツールの保証購入の安全性-Securing Email with Cisco Email Security Appliance

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Cisco Securing Email with Cisco Email Security Appliance 認定 300-720 試験問題 (Q62-Q67):

質問 # 62
A security administrator deployed a Cisco Secure Email Gateway appliance with a mail policy configured to store suspected spam for review. The appliance is the DMZ and only the standard HTTP/HTTPS ports are allowed by the firewall. An administrator wants to ensure that users can view any suspected spam that was blocked. Which action must be taken to meet this requirement?

正解：B

解説：
Enabling End-User Quarantine Access and pointing to an LDAP server for authentication is the action that must be taken to meet this requirement. End-User Quarantine Access is a feature that allows users to access their personal quarantine on Cisco ESA using their email address and password, without requiring an administrator account or access to Secure Email and Web Manager. To enable End-User Quarantine Access on Cisco ESA, the administrator can follow these steps:
Select Security Services > IronPort Anti-Spam > End User Safelist/Blocklist Settings and click Edit Settings.
Under End User Quarantine Access, select Enable End User Quarantine Access. Under Authentication Server, select LDAP Server from the drop-down menu and choose an LDAP server profile from the drop-down menu.
Click Submit.


質問 # 63
Which content filter condition checks to see if the " From: header " in the message is similar to any of the users in the content dictionary?

正解：D

解説：
The content filter condition that checks to see if the "From: header" in the message is similar to any of the users in the content dictionary is Forged Email Detection. This condition compares the sender's name or email address with a list of names or email addresses in a content dictionary and triggers an action if they match or are similar. References : [Cisco Secure Email Gateway Administrator Guide - Forged Email Detection]


質問 # 64
An engineer wants to utilize a digital signature in outgoing emails to validate to others that the email they are receiving was indeed sent and authorized by the owner of that domain Which two components should be configured on the Cisco Secure Email Gateway appliance to achieve this? (Choose two.)

正解：C、D

解説：
* Public/Private keypair. A public/private keypair is a pair of cryptographic keys that are used to generate and verify digital signatures. The private key is used to sign the email message, while the public key is used to verify the signature. The public ke y is published in a DNS record, while the private key is stored on the Cisco Secure Email Gateway appliance[ 1 , p. 2].
* Domain signing profile. A domain signing profile is a configuration that specifies the domain and selector to use for signing outgoing mes sages, as well as the signing algorithm, canonicalization method, and header fields to include in the signature. You can create multiple domain signing profiles for different domains or subdomains[ 1 , p. 3].
The other options are not valid because:
* A. DMARC verification profile is not a component for utilizing a digital signature in outgoing emails. It is a component for verifying the authenticity of incoming emails based on SPF and DKIM results[ 2 , p.
1].
* B. SPF record is not a component for utilizing a digi tal signature in outgoing emails. It is a component for validating the sender IP address of incoming emails based on a list of authorized IP addresses published in a DNS record[ 3 , p. 1].
* E. PKI certificate is not a component for utilizing a digital signatu re in outgoing emails. It is a component for encrypting and decrypting email messages based on a certificate authority that issues and validates certificates[ 4 , p. 1].


質問 # 65
Refer to the exhibit.

Which SPF record is valid for mycompany.com?

正解：C

解説：
The SPF record for mycompany.com is shown in the exhibit as:
v=spf1 a mx ip4:199.209.31.21 -all
This means that the domain mycompany.com authorizes the following sources to send email on its behalf:
* The A record of mycompany.com, which resolves to 199.209.31.21
* The MX record of mycompany.com, which points to mail.mycompany.com, which also resolves to
199.209.31.21
* The IP address 199.209.31.21
* The -all qualifier means that any other source is not authorized and should be rejected.
Therefore, the correct answer is C.
References:
SPF Record Syntax
Define your SPF record-Basic setup


質問 # 66
What are organizations trying to address when implementing a SPAM quarantine?

正解：C

解説：
The Spam Quarantine (also known as ISQ) and End-User Quarantine (also known as EUQ) provides a safeguard mechanism for organizations that are concerned about "false positives".
https://www.cisco.com/c/en/us/td/docs/security/esa/esa14-0/user_guide/b_ESA_Admin_Guide_14-0/b_ESA_Admin_Guide_12_1_chapter_0100000.html?bookSearch=true


質問 # 67
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