The Basic Form of Backup Used in Magnetic Tape Operations

question 13

Multiple Choice

The basic form of backup used in magnetic tape operations is called:

• A)Odd parity check
• B)Dual-head processing
• C)File protection rings
• D)The grandfather-parent-child procedure

---

Definitions:

Prediction Interval

An estimated range of values within which a future observation is expected to fall, with a certain probability.

Independent Variable

A variable in an experiment or model that is manipulated or changed to assess its effects on a dependent variable.

Probability Distribution

A mathematical function that describes the likelihood of obtaining the possible values that a random variable can assume.

Uncertainty

The state of having limited knowledge where it is impossible to exactly describe an existing state or future outcome.