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Cloudflare DDoS Protection Quiz

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Questions and Answers

What does a Sender Policy Framework (SPF) record validate?

The sending server's domain name (correct)
The sending server's IP address
The receiving server's domain name
The receiving server's IP address

What is the purpose of a DomainKeys Identified Mail (DKIM) signature?

To authenticate the sender of the email (correct)
To encrypt email messages
To determine the receiving server's IP address
To hide the IP address of the sender

Which DNS record type is used for resolving an IP address to its associated hostname?

MX record
PTR record (correct)
TXT record
CNAME record

What does DMARK validation help determine in email communications?

The authenticity of the email sender (D) Signup and view all the answers

How does Cloudflare assist in dealing with DDoS attacks?

By distributing the attack across multiple servers (A) Signup and view all the answers

What is the main function of DKIM in email security?

To verify that an email was sent from an authentic source (C) Signup and view all the answers

What is the purpose of SPF records in email server authentication?

Validates the sending server is authorized to send emails from the associated email domain (B) Signup and view all the answers

How does DKIM contribute to email authentication?

Allows the sender to sign emails with a private key for verification (C) Signup and view all the answers

What is the role of PTR (Pointer) in email server configurations?

Performs reverse DNS lookup (D) Signup and view all the answers

How does DMARK enhance email security?

Checks for DKIM and SPF entries in an email message (B) Signup and view all the answers

Which mechanism helps confirm that an email is from a trusted server?

DKIM (B) Signup and view all the answers

What is the purpose of SPF records in the context of mail servers?

To help prevent email spoofing by specifying authorized IP addresses for a domain (A) Signup and view all the answers

Which DNS record is used for Domain-based Message Authentication Reporting and Conformance (DMARC)?

DMARC records (A) Signup and view all the answers

What does a DKIM record store?

The DKIM public key (C) Signup and view all the answers

How does a mail server benefit from having all DNS records correctly set?

By increasing the likelihood of emails being delivered to the Inbox (B) Signup and view all the answers

Which DNS record type can be published to control what happens when a message fails authentication?

DMARC records (D) Signup and view all the answers

For what purpose are PTR records typically used in the context of mail servers?

Troubleshooting email delivery issues (A) Signup and view all the answers