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Protection vs Null - What's the difference?

protection | null |

In computing terms the difference between protection and null

is that protection is an instance of a security token associated with a resource (such as a file) while null is the attribute of an entity that has no valid value.

As nouns the difference between protection and null

is that protection is the process of keeping (something or someone) safe while null is a non-existent or empty value or set of values.

As an adjective null is

having no validity, "null and void.

As a verb null is

to nullify; to annul.

protection

English

Noun

  • The process of keeping (something or someone) safe.
  • :
  • *
  • *:But then I had the flintlock by me for protection . ΒΆ There were giants in the days when that gun was made; for surely no modern mortal could have held that mass of metal steady to his shoulder. The linen-press and a chest on the top of it formed, however, a very good gun-carriage; and, thus mounted, aim could be taken out of the window.
  • The state of being safe.
  • A means of keeping or remaining safe.
  • A means, such as a condom, of preventing pregnancy or sexually transmitted disease.
  • (lb) Coverage.
  • Immunity from harm obtained by illegal payments, as bribery or extortion.
  • (lb) Restrictions on foreign competitors which limit their ability to compete with domestic producers of goods or services.
  • (lb) An instance of a security token associated with a resource (such as a file).
  • Derived terms

    * autoprotection * heteroprotection * protection course * protection money * protection racket

    See also

    * be prepared ----

    null

    English

    Noun

    (en noun)
  • A non-existent or empty value or set of values.
  • Zero]] quantity of [[expression, expressions; nothing.
  • (Francis Bacon)
  • Something that has no force or meaning.
  • (computing) the ASCII or Unicode character (), represented by a zero value, that indicates no character and is sometimes used as a string terminator.
  • (computing) the attribute of an entity that has no valid value.
  • Since no date of birth was entered for the patient, his age is null .
  • One of the beads in nulled work.
  • (statistics) null hypothesis
  • Adjective

    (en adjective)
  • Having no validity, "null and void"
  • insignificant
  • * 1924 , Marcel Proust, Within a Budding Grove :
  • In proportion as we descend the social scale our snobbishness fastens on to mere nothings which are perhaps no more null than the distinctions observed by the aristocracy, but, being more obscure, more peculiar to the individual, take us more by surprise.
  • absent or non-existent
  • (mathematics) of the null set
  • (mathematics) of or comprising a value of precisely zero
  • (genetics, of a mutation) causing a complete loss of gene function, amorphic.
  • Derived terms

    * nullity

    Verb

    (en verb)
  • to nullify; to annul
  • (Milton)

    See also

    * nil ----