Security, Privacy and Data Integrity
Keeping data safe from people who should not see it, and from being corrupted.
Match each measure to what it actually achieves.
PICK ONE, THEN PICK ITS GROUP
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//Three words that are not the same
Security: stopping unauthorised ACCESS. Privacy: controlling who is ALLOWED to see data and what they may do with it. Integrity: keeping data ACCURATE and uncorrupted. A question naming one of these wants that specific answer.
//Validation checks you must be able to name
Range, format, length, presence, type, check digit, lookup. Give the check AND an example that would fail it.
//Verification during data entry and transfer
On entry: double entry, or a visual check by a human. On transfer: parity check, checksum, or a hash comparison. Note that verification during entry and during transfer are different situations — read which the question asks for.
CHECK YOURSELF
1.Keeping data ACCURATE and uncorrupted is which of these?
2.A user types their email address twice to make sure it is right. That is:
3.Which check would catch a date of birth of 30/02/2010?