c170 Exam Review Questions with Correct Answers

c170 Exam Review Questions with Correct
Answers
A salesperson is authorized to sell many products and a product can be sold by many

salespersons.

Which kind of binary relationship does this scenario describe?



One-to-one

One-to-many

Many-to-many

One-to-one binary

Many-to-many

Which two examples are attributes?



Choose 2 answers



A person attending a meeting

An employee number

A sales meeting

A meeting code

An employee number

A meeting code

Which delete rule sets column values in a child table to a missing value when the

matching data is deleted from the parent table?

,Restrict

Cascade

Matching

Set-to-Null

Set-to-Null

Refer to the given SQL statement.



CREATE TABLE member

(

member_id INT UNSIGNED NOT NULL AUTO_INCREMENT,

PRIMARY KEY (member_id),

last_name VARCHAR(20) NOT NULL,

first_name VARCHAR(20) NOT NULL,

suffix VARCHAR(5) NULL,

expiration DATE NULL,

email VARCHAR(100) NULL,

street VARCHAR(50) NULL,

city VARCHAR(50) NULL,

state VARCHAR(2) NULL,

zip VARCHAR(10) NULL,

phone VARCHAR(20) NULL,

interests VARCHAR(255) NULL

);



Which two columns are created as something other than variable-length strings in this

, statement?



Choose 2 answers



member_id

last name

suffix

expiration

email

city

member_id

expiration

Employee_ID Employee_Name Office_Address

12342 Jacob 54123 Main Street

12346 Michael 354 Center Avenue

12846 Ethan 54123 Main Street

12887 Joshua 54123 Main Street

12894 Daniel 354 Center Avenue

13097 Alexander 354 Center Avenue

13112 Anthony 54123 Main Street

13411 William 354 Center Avenue

13987 Christopher 354 Center Avenue

13998 Matthew 54123 Main Street



This database table has ten different employee numbers in the first column.