Remember SOA
Full name: Start of Authority
Memory aid: Start Of Authority introduces a zone's administrative facts.
A zone's SOA record is different from the list of its delegated name servers.
Study area: Protocols & logical ports · Batch 7
Relevant study for: CompTIA Network+ N10-009 · Cisco CCNA 200-301 · CompTIA A+ Core 1 220-1201 · CompTIA Security+ SY0-701 · ISC2 CISSP 2024 outline
Practice with exam flashcards →Networking & Connectivity / Knowledge library
SOA — Start of Authority
Stores administrative and timing information at a DNS zone's origin.
Why learn SOA — Start of Authority?
Stores administrative and timing information at a DNS zone's origin.
Where it came from
A zone's SOA record is different from the list of its delegated name servers.
- Memory aid (a learning cue, not the expansion): Start Of Authority introduces a zone's administrative facts.
Build your understanding
Work through these exercises in order. Try the task before opening a reference.
- Without looking, expand SOA: Start of Authority.
- Recall this memory aid: Start Of Authority introduces a zone's administrative facts.
- Explain the practical use: Stores administrative and timing information at a DNS zone's origin.
- Explain this distinction: A zone's SOA record is different from the list of its delegated name servers.
- Identify SOA in a device specification, architecture diagram, or system inventory.
Documentation and sources
- IETF RFC 1035 (www.rfc-editor.org)