Question

QUESTION 4 Which of the following data models uses a non-procedural language to access data? 1....

QUESTION 4

  1. Which of the following data models uses a non-procedural language to access data?

    1.

    Hierarchic

    2.

    Network

    3.

    Relational

    4.

    All of these

QUESTION 5

  1. Which view of the three schema architecture is NOT considered a logical view?

    1.

    global view

    2.

    physical view

    3.

    local views

    4.

    none of the above - all views are logical

QUESTION 6

  1. Which of the following data models require "navigation" (following pointers) through the structure to access data?

    1.

    Hierarchic

    2.

    Network

    3.

    Relational

    4.

    All of these

Homework Answers

Answer #1

QUESTION 4

Which of the following data models uses a non-procedural language to access data?

Ans All of these

QUESTION 5

Which view of the three schema architecture is NOT considered a logical view?

Ans Physical View

Explanation

A Physical View is a technical description of the implementation of the Logical View

QUESTION 6

Which of the following data models require "navigation" (following pointers) through the structure to access data?

Hierarchic

Explanation: Record access is done by navigating downward through the data structure using pointers combined with sequential accessing.

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