You Are Given an E-R Diagram with Two Entities,ORDER and CUSTOMER,as

question 38

Multiple Choice

You are given an E-R diagram with two entities,ORDER and CUSTOMER,as shown above,and are asked to draw the relationship between them.If a given customer can place many orders and a given order can be placed by at most one customer,which of the following should be indicated in the relationship symbol between the two entities?

• A)0:1
• B)1:1
• C)1:N
• D)N:1
• E)N:M

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Definitions:

Fault Scarp

A step in the landscape caused when fault movement offsets Earth’s surface.

Columnar Joints

Distinctive polygonal shapes formed in volcanic rock due to contraction as it cools, creating pillar-like formations.

Cleavage

The tendency of a mineral to break along flat, even surfaces as determined by the structure of the mineral’s crystal lattice.

Hogback

Any ridge with a sharp summit and one slope inclined approximately parallel to the dip of layers, resembling in outline the back of a hog.