When Using Indexed Sequential Record Organization,each Entry in the Index

question 3

Multiple Choice

When using indexed sequential record organization,each entry in the index file contains the ____ and the physical location of the data block where this record,and the records with smaller keys,are stored.

• A) last record name
• B) highest record key
• C) lowest record key
• D) first record name

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Definitions:

Excludability

A characteristic of a good or service that allows owners or producers to prevent others from using it without permission.

Marginal-cost-marginal-benefit Rule

A principle suggesting that optimal decision making involves continuing an activity until the additional benefits no longer exceed the additional costs.

Cost-benefit Analysis

A systematic approach to estimating the strengths and weaknesses of alternatives used to determine options that provide the best approach to achieve benefits while preserving savings.