Remember CRC
Full name: Cyclic Redundancy Check
Memory aid: Cycle through bits to Check for corruption.
A CRC is not designed to resist intentional message tampering.
Study area: Network architecture & switching · Batch 7
Relevant study for: CompTIA Network+ N10-009 · Cisco CCNA 200-301 · CompTIA Security+ SY0-701 · ISC2 CISSP 2024 outline
Practice with exam flashcards →Networking & Connectivity / Knowledge library
CRC — Cyclic Redundancy Check
Computes an error-detection value using polynomial arithmetic.
Why learn CRC — Cyclic Redundancy Check?
Computes an error-detection value using polynomial arithmetic.
Where it came from
A CRC is not designed to resist intentional message tampering.
- Memory aid (a learning cue, not the expansion): Cycle through bits to Check for corruption.
Build your understanding
Work through these exercises in order. Try the task before opening a reference.
- Without looking, expand CRC: Cyclic Redundancy Check.
- Recall this memory aid: Cycle through bits to Check for corruption.
- Explain the practical use: Computes an error-detection value using polynomial arithmetic.
- Explain this distinction: A CRC is not designed to resist intentional message tampering.
- Identify CRC in a device specification, architecture diagram, or system inventory.
Documentation and sources
- IEEE 802 LAN/MAN standards (www.ieee802.org)
- IETF Internet standards (www.rfc-editor.org)