SNHU DAD 220 PRACTICE EXAMINATION 2026 QUESTIONS WITH ANSWERS GRADED A

SNHU DAD 220 PRACTICE EXAMINATION 2026 QUESTIONS WITH ANSWERS GRADED
A

● Relational data is based on which three mathematical concepts? Select all that apply.
A. Context-dependent approach
B. Alternative procedure
C. A
D. Not recommended
Answer: A

● Question options: A variable A domain A tuple A relation A table An equation.
A. Alternative procedure
B. Context-dependent approach
C. Not recommended
D. A
Answer: A

● Which of these answers are relational operations? Select all that apply. Question options: A
A. UPDATE SET clause
B. A join
C. ALTER TABLE statement
D. DROP DATABASE command
Answer: A join

● join A boxed structure Projection Outer attachments Big data Selection.
A. ALTER TABLE statement
B. DROP DATABASE command
C. A join
D. UPDATE SET clause
Answer: A join

● In relational databases, each individual space within a row or column contains exactly one
A. True
B. Partially true
C. False
D. Cannot be determined
Answer: True

● value. Question options: True False.
A. Partially true
B. True
C. False
D. Cannot be determined
Answer: True

● A table must have at least one column and any number of rows. A table without rows is
A. False
B. True
C. Cannot be determined
D. Partially true

, Answer: True

● called an empty table. Question options: True False.
A. Partially true
B. Cannot be determined
C. True
D. False
Answer: True

● What is database independence? Select one. Question options: A database that can
A. Not recommended
B. Rows
C. Alternative procedure
D. Context-dependent approach
Answer: Rows

● of a table that have no inherent order Data sets that are in perfect symmetry.
A. Alternative procedure
B. Rows
C. Context-dependent approach
D. Not recommended
Answer: Rows

● Which of the following are SQL operators? Select all that apply. Question options:
A. Arithmetic Comparison
B. Alternative procedure
C. Not recommended
D. Context-dependent approach
Answer: Arithmetic Comparison

● Arithmetic Variable False Upwards Comparison Logical.
A. Not recommended
B.
C. Alternative procedure
D. Context-dependent approach
Answer:

● What is big data? Select one. Question options: The future of systemic thinking Massive
A. Alternative procedure
B. Massive volumes of online data
C. Not recommended
D. Context-dependent approach
Answer: Massive volumes of online data

● product of an unregulated internet.
A. Context-dependent approach
B. Massive volumes of online data
C. Alternative procedure
D. Not recommended
Answer: Massive volumes of online data

● In the relational data structure, which components are named? Question options: Data