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Cisco 300-720 certification is an important credential for IT professionals who want to advance their careers in the field of email security. It validates the candidate’s knowledge and skills in securing email with Cisco Email Security Appliance, which is a highly regarded email security solution used by organizations around the world. Securing Email with Cisco Email Security Appliance certification is recognized by employers as a mark of expertise and can help candidates stand out in a highly competitive job market.
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The main requirement you should meet if you are sitting for 300-720 exam is that you should have competencies around email security. Most of the people who take such a test are already skilled in the field and take the evaluation to assess their skills. If you have no prior knowledge about email security and the related domains, you should consider taking the recommended course to prepare for the official exam.
NEW QUESTION # 161
A network administrator notices that there are a high number of queries to the LDAP server. The mail logs show an entry "550 Too many invalid recipients | Connection closed by foreign host." Which feature must be used to address this?
Answer: D
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_12_0_chapter_011010.html DHAP (Directory Harvest Attack Prevention) is a feature that must be used to address this issue. DHAP is a mechanism that allows Cisco ESA to prevent directory harvest attacks, which are attempts by spammers or hackers to obtain valid email addresses from an LDAP server by sending messages with random or guessed recipients and checking for bounce messages.
To enable DHAP on Cisco ESA, the network administrator can follow these steps:
Select Network > Listeners and click Edit Settings for the listener that receives incoming messages.
Under SMTP Authentication Settings, select Enable Directory Harvest Attack Prevention.
Enter a value for Maximum Invalid Recipients per Hour, which is the number of invalid recipients that triggers DHAP.
Enter a value for Block Sender for (hours), which is the duration that Cisco ESA blocks messages from senders who exceed the maximum invalid recipients per hour.
Click Submit.
NEW QUESTION # 162
An engineer must share threat reporting information from Cisco Secure Email Gateway to Cisco SecureX. Which setting must be enabled in Secure Email Gateway?
Answer: A
Explanation:
To share threat reporting information from Cisco Secure Email Gateway to Cisco SecureX, the Security Services Exchange setting must be enabled. This integrates the email gateway with SecureX for unified threat visibility and reporting.
NEW QUESTION # 163
A message passes SPF validation but fails DKIM validation. What is the most likely explanation?
Answer: D
Explanation:
DKIM verifies message integrity using a cryptographic signature. If headers or body content are modified after signing, validation fails. SPF may still pass because SPF validates sending server authorization rather than message integrity.
NEW QUESTION # 164
An engineer must configure Directory Harvest Attack Prevention for SMTP in Cisco Secure Email Gateway. This error message must be sent when the listener receives more than 50 invalid recipients per hour:
- 500 - Too many requests
- Max. Invalid Recipients Per Hour was set to 50 already.
Which two actions must be taken next to set maximum invalid recipients per hour to meet the requirement? (Choose two.)
Answer: C,E
Explanation:
To customize the Directory Harvest Attack Prevention (DHAP) error message for exceeding 50 invalid recipients per hour, you must configure Max. Recipients Per Hour Code to 500 (the SMTP error code) and set Max. Recipients Per Hour Text to "Too many requests" (the custom message text). This ensures the correct code and message are sent to senders when the threshold is exceeded.
NEW QUESTION # 165
What is the default port to deliver emails from the Cisco ESA to the Cisco SMA using the centralized Spam Quarantine?
Answer: A
Explanation:
The default port to deliver emails from the Cisco ESA to the Cisco SMA using the centralized Spam Quarantine is 6025. This is the default value for the Port setting in the External Spam Quarantine configuration on Cisco ESA. This port must be open on both Cisco ESA and Cisco SMA for the communication to work.
References: User Guide for AsyncOS 15.0 for Cisco Secure Email Gateway , page 10-4.
Reference: https://www.cisco.com/c/en/us/support/docs/security/email-security-appliance/118692-configure- esa-00.html
NEW QUESTION # 166
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