実践サンプルと問題集と指導には2021年最新の300-720有効なテスト問題集
最新 [2021年12月20日] 100%合格率保証付きの素晴らしい300-720試験問題PDF
質問 38
Which attack is mitigated by using Bounce Verification?
- A. denial of service
- B. eavesdropping
- C. spoof
- D. smurf
正解: A
解説:
Reference:
https://www.networkworld.com/article/2305394/ironport-adds-bounce-back-verification-for-e- mail.html
質問 39 
Refer to the exhibit. An engineer needs to change the existing Forged Email Detection message filter so that it references a newly created dictionary named 'Executives'.
What should be done to accomplish this task?
- A. Change "from" to "Executives".
- B. Change "support" to "Executives".
- C. Change "TESF to "Executives".
- D. Change fed' to "Executives".
正解: B
質問 40
An analyst creates a new content dictionary to use with Forged Email Detection.
Which entry will be added into the dictionary?
- A. [email protected]
- B. Alpha Beta
- C. ^Alpha\ Beta$
- D. mycompany.com
正解: D
解説:
Reference:
https://www.cisco.com/c/en/us/products/collateral/security/email-security-appliance/ whitepaper_C11-737596.html
質問 41
What are two prerequisites for implementing undesirable URL protection in Cisco ESA? (Choose two.)
- A. Enable antivirus scanning.
- B. Enable email relay.
- C. Enable outbreak filters.
- D. Enable port bouncing.
- E. Enable antispam scanning.
正解: C,E
質問 42
Which Cisco ESA security service is configured only through an outgoing mail policy?
- A. DLP
- B. AMP
- C. Outbreak Filters
- D. antivirus
正解: A
解説:
Explanation
Reference https://www.cisco.com/c/en/us/td/docs/security/esa/esa11-0/user_guide_fs/ b_ESA_Admin_Guide_11_0/b_ESA_Admin_Guide_chapter_01001.html
質問 43
An email containing a URL passes through the Cisco ESA that has content filtering disabled for all mail policies. The sender is [email protected], the recipients are [email protected], [email protected], [email protected], and [email protected]. The subject of the email is Test Document395898847. An administrator wants to add a policy to ensure that the Cisco ESA evaluates the web reputation score before permitting this email.
Which two criteria must be used by the administrator to achieve this? (Choose two.)
- A. Sender matches test1.com
- B. Subject contains Test Document"
- C. Email does not match [email protected]
- D. Date and time of email
- E. Email body contains a URL
正解: B,E
質問 44
Which process is skipped when an email is received from safedomain.com, which is on the safelist?
- A. antivirus scanning
- B. outbreak filter
- C. antispam scanning
- D. message filter
正解: D
質問 45
When email authentication is configured on Cisco ESA, which two key types should be selected on the signing profile? (Choose two.)
- A. Public Keys
- B. Private Keys
- C. Symmetric Keys
- D. Domain Keys
- E. DKIM
正解: D,E
質問 46
Which two features are applied to either incoming or outgoing mail policies? (Choose two.)
- A. antivirus
- B. application filtering
- C. sender reputation filtering
- D. outbreak filters
- E. Indication of Compromise
正解: A,D
解説:
Reference:
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_01001.html
質問 47
Refer to the exhibit.
Which SPF record is valid for mycompany.com?
- A. v=spf1 a mx ip4:199.209.31.21 -all
- B. v=spf1 a mx ip4:10.1.10.23 -all
- C. v=spf1 a mx ip4:172.16.18.230 -all
- D. v=spf1 a mx ip4:199.209.31.2 -all
正解: C
質問 48
An organization wants to use DMARC to improve its brand reputation by leveraging DNS records.
Which two email authentication mechanisms are utilized during this process? (Choose two.)
- A. DKIM
- B. PKI
- C. TLS
- D. DSTP
正解: C,D
質問 49
Which feature utilizes sensor information obtained from Talos intelligence to filter email servers connecting into the Cisco ESA?
- A. SenderBase Reputation Filtering
- B. Talos Reputation Filtering
- C. Connection Reputation Filtering
- D. SpamCop Reputation Filtering
正解: A
質問 50
Which type of attack is prevented by configuring file reputation filtering and file analysis features?
- A. backscatter
- B. zero-day
- C. phishing
- D. denial of service
正解: B
解説:
Explanation/Reference: https://www.cisco.com/c/en/us/td/docs/security/esa/esa12-0/user_guide/ b_ESA_Admin_Guide_12_0/b_ESA_Admin_Guide_chapter_010000.html#con_1809885
質問 51
Which SMTP extension does Cisco ESA support for email security?
- A. STARTTLS
- B. ETRN
- C. PIPELINING
- D. UTF8SMTP
正解: A
解説:
Reference:
https://www.cisco.com/c/en/us/td/docs/security/esa/esa12-0/user_guide/b_ESA_Admin_Guide_12_0/b_ESA_Admin_Guide_12_0_chapter_011000.html
質問 52
Email encryption is configured on a Cisco ESA that uses CRES.
Which action is taken on a message when CRES is unavailable?
- A. It is encrypted by a Cisco encryption appliance.
- B. It is requeued.
- C. It is dropped and an error message is sent to the sender.
- D. It is sent in clear text.
正解: D
解説:
Explanation/Reference: https://www.cisco.com/c/en/us/support/docs/security/email-security-appliance/117863- configure-esa-00.html
質問 53
What is the order of virus scanning when multilayer antivirus scanning is configured?
- A. The Sophos engine scans for viruses first and the McAfee engine scans for viruses second.
- B. The default engine scans for viruses first and the McAfee engine scans for viruses second.
- C. The McAfee engine scans for viruses first and the Sophos engine scans for viruses second.
- D. The McAfee engine scans for viruses first and the default engine scans for viruses second.
正解: D
解説:
Explanation
If you configure multi-layer anti-virus scanning, the Cisco appliance performs virus scanning with the McAfee engine first and the Sophos engine second. It scans messages using both engines, unless the McAfee engine detects a virus. If the McAfee engine detects a virus, the Cisco appliance performs the anti-virus actions (repairing, quarantining, etc.) defined for the mail policy.
質問 54
Which scenario prevents a message from being sent to the quarantine as an action in the scan behavior on Cisco ESA?
- A. The "add custom header" action is performed first.
- B. More than one email pipeline is defined.
- C. The "modify the message subject" is already set.
- D. A policy quarantine is missing.
正解: B
質問 55
Which two statements about configuring message filters within the Cisco ESA are true? (Choose two.)
- A. Message filters can be configured only from the web user interface.
- B. Message filters configuration within the web user interface is located within Incoming Content Filters.
- C. Message filters can be configured only from the CLI.
- D. The filterconfig command executed from the CLI is used to configure message filters.
- E. The filters command executed from the CLI is used to configure the message filters.
正解: C,E
解説:
Explanation/Reference:
Reference: https://www.cisco.com/c/en/us/support/docs/security/email-security-appliance/213940-esa- using-a-message-filter-to-take-act.html
質問 56
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