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Eddi Din [679]
3 years ago
6

Match the data type to their correct explanations.

Computers and Technology
2 answers:
siniylev [52]3 years ago
6 0

Answer:

  • Boolean------------------->Stores one of two given values
  • null------------------->allows optional values
  • memo------------------->allows inserting a large amount of text including numbers
  • autonumber------------------->serves as a counter in your database

Explanation:

<em>Boolean:</em> In computing the Logical or Boolean data type is one that can represent binary logic values, that is, 2 values, which normally represent false or true.

<em></em>

<em>Null:</em>  Null is not designed as an integer, character, or other specific data type.

<em>Memo:</em> It is used to enter data that includes text, numerical values that don't require mathematical calculations, or a combination of text and numbers. Accepts a maximum of 255 characters.

<em>Autonumber: </em>The value that this field contains will be increased every time a record is added to the table that contains it, then this data type is used to carry a sequence of the records entered into a table. This type of data is not allowed to be modified.

leva [86]3 years ago
4 0

Answer:

^^^ This person is right for Plato

Explanation:

PLATO GANG

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Answer:

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mr_godi [17]

Answer:

Meaning:

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Explanation:

Playfair cipher  invented in 1854 by Charles Wheatstone was the first practical digraph substitution cipher. Lord Playfair promoted the use of the cipher, therefore it was named after him. Playfair cipher encrypts pairs of letters (digraphs) making it hard to break.  Frequency analysis can still be undertaken but requires much more cipher text in order to work. It requires no additional equipment to operate and is very fast therefore it is to protect information during war. It was used  by British forces in the Second Boer War and in World War I and during World War II by the Australians.  

When the PT-109 American patrol boat, under the command of Lieutenant John F. Kennedy, was sunk by a Japanese destroyer, a message was received at an Australian wireless station in the morning of the 2 of August 1943  in Playfair code:

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