A network administrator needs to add a Sender Policy Framework (SPF) record to the company's DNS to improve email security by specifying which mail servers are authorized to send email for the domain. Which DNS record type should the administrator use to hold this information?
MX records, which are used to direct a domain's email to the correct mail servers.
TXT records, which are used to store text-based information for various purposes, including SPF data.
A records, which are responsible for mapping hostnames to their corresponding IPv4 addresses.
SOA records, which delineate authoritative information about the DNS zone, such as admin contacts and refresh timers.
TXT (Text) records are used to hold descriptive, human-readable, or machine-readable data. They are highly versatile and commonly used for implementing email security mechanisms like Sender Policy Framework (SPF), DomainKeys Identified Mail (DKIM), and Domain-based Message Authentication, Reporting, and Conformance (DMARC). While MX, SOA, and A records serve other critical DNS functions, only the TXT record is designed to store this type of arbitrary string data for domain verification and policy definition.
Ask Bash
Bash is our AI bot, trained to help you pass your exam. AI Generated Content may display inaccurate information, always double-check anything important.
What is the purpose of an SPF record in DNS?
Open an interactive chat with Bash
How does a TXT record differ from other DNS record types?
Open an interactive chat with Bash
Why are DMARC, DKIM, and SPF often implemented together?