Remember NS
Full name: Name Server record
Memory aid: Name Servers answer for the delegated namespace.
An NS record names a server; address resolution can require additional records.
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
NS — Name Server record
Identifies authoritative DNS servers for a zone or delegation.
Why learn NS — Name Server record?
Identifies authoritative DNS servers for a zone or delegation.
Where it came from
An NS record names a server; address resolution can require additional records.
- Memory aid (a learning cue, not the expansion): Name Servers answer for the delegated namespace.
Build your understanding
Work through these exercises in order. Try the task before opening a reference.
- Without looking, expand NS: Name Server record.
- Recall this memory aid: Name Servers answer for the delegated namespace.
- Explain the practical use: Identifies authoritative DNS servers for a zone or delegation.
- Explain this distinction: An NS record names a server; address resolution can require additional records.
- Identify NS in a device specification, architecture diagram, or system inventory.
Documentation and sources
- IETF RFC 1035 (www.rfc-editor.org)