noun · academic

redundancy

/rɪˈdʌndənsi/re·DUN·dan·cy

Band 7+task2speaking

the inclusion of extra components which are not strictly necessary, in case of failure, to increase reliability.

Examples

The data centre has redundancy at every level, so a single failure won't take services offline.

Redundancy can mean extra copies of data or duplicate network paths.

Too much redundancy, however, may increase cost without proportional benefit.

Band 8 sentence

Critical infrastructure requires carefully planned redundancy so that service continuity survives hardware failures or natural disasters.

Collocations

  • hardware redundancy
  • data redundancy
  • introduce redundancy

Word family

redundant adjectiveredundantly adverbredundancy noun

Common mistakes

They built redundancies in the server.They built redundancy into the server.

The system is redundant to ensure safety.The system has redundancy to ensure safety.

Say it for a higher band

5backup6duplicate7+redundancy

Synonyms

backup

Easily confused

backup

Always keep a backup of important files on an external drive.

Related words

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