QUESTION 1
Consider the following:
Which of the quoted values below will be returned for the name field in the SELECT results?
A. ‘ Tom’
B. ‘ Tom ‘
C. ‘Tom’
D. ‘Tom ‘
Answer: B
QUESTION 2
Which statement(s) from following list are true for BINARY and VARBINARY data types?
A. When BINARY values are stored, they are right-padded with null values to the specified length
B. When VARBINARY values are stored, they are right-padded with null values to the specified length
C. When BINARY values are retrieved, trailing nulls are removed
D. When VARBINARY values are retrieved, trailing nulls are removed
Answer: AC
QUESTION 3
Is the following statement true or false? “Fields with the DECIMAL column type are always stored more efficiently than those with type FLOAT.”
A. true
B. false
Answer: B
QUESTION 4
Is the following statement true or false? “A 24-bit column can be specified with BIT(24) in a CREATE statement.”
A. true
B. false
Answer: A
QUESTION 5
Is the following statement true or false? “VARCHAR columns usually require less storage space than CHAR columns.”
A. true
B. false
Answer: A
QUESTION 6
Is the following statement true or false? “Math involving DOUBLE and FLOAT columns is always accurate because MySQL 5 supports precision mathematics.”
A. true
B. false
Answer: B
QUESTION 7
Is the following statement true or false? “Defining a column as TIMESTAMP DEFAULT CURRENT_TIMESTAMP will ensure that when rows are inserted, the current time will always be used.”
A. true
B. false
Answer: B
QUESTION 8
Is the following a valid CREATE statement?
A. Yes
B. No, the same collation must be used for all columns.
C. No, the parameter 17000 is invalid for the VARBINARY type.
D. No, the VARBINARY type may not have character set or collation attributes
Answer: D
QUESTION 9
A column defined as DECIMAL, with no parameters, is equivalent to which of the below?
A. DECIMAL(5,5)
B. DECIMAL(10,0)
C. DECIMAL(0,10)
D. DECIMAL(3,7)
Answer: B
QUESTION 10
Which of the following statements will add two columns of INT type to the `country` table?
A. ALTER TABLE country ADD rainfall INT ADD gdp INT
B. ALTER TABLE country ADD rainfall INT, gdp INT
C. ALTER TABLE country ADD rainfall INT, ADD gdp INT
D. ALTER TABLE country ADD rainfall INT gdp INT
E. You cannot add more than one column with a single ALTER TABLE statement
Answer: C
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