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Q1. In SQL, the command(s) is(are) used to create an index for a table or cluster
(A) CREATE INDEX
(B) MODIFY INDEX
(C) SET INDEX TO FILE
(D) All of the above
Answer: (A) CREATE INDEX
Q2. ODBC stands for _
(A) Offline database connection
(B) Oriented database connection
(C) Open database connection
(D) None of above
Answer: (C) Open database connection
Q3. A __ means that one record in a particular record type is related to only one record of another record type.
(A) One-to-one relationship
(B) One-to-many relationship
(C) Many-to-one relationship
(D) Many-to-many relationship
Answer: (A) One-to-one relationship
Q4. A _ means that one record in a particular record type may be related to more than one record of another record type.
(A) One-to-one relationship
(B) One-to-many relationship
(C) Many-to-one relationship
(D) Many-to many relationship
Answer: (B) One-to-many relationship
Q5. Snapshot of the data in the database at a given instant of time is called
(A) Database Schema
(B) Database Instance
(C) Database Snapshot
(D) All of the above
Answer: (B) Database Instance
Q6. The index consists of
(A) A list of keys
(B) Pointers to the master list
(C) Both (a) and (b)
(D) None of the above
Answer: (C) Both (a) and (b)
Q7. A transaction completes its execution is said to be
(A) Saved
(B) Loaded
(C) Rolled
(D) Committed
Answer: (D) Committed
Q8. If you want to organize a file in multiple ways, it is better to __ the data rather than to sort it.
(A) Delete
(B) Update
(C) Sort Key
(D) Index
Answer: (D) Index
Q9. Data encryption techniques are particularly useful for
(A) Reducing storage space requirements
(B) Improving data integrity
(C) Protecting data in data communication systems
(D) All of the above
Answer: (C) Protecting data in data communication systems
Q10. A functional dependency between two or more non-key attributes is called
(A) Transitive dependency
(B) Partial transitive dependency
(C) Functional dependency
(D) Partial functional dependency
Answer: (A) Transitive dependency
Q11. If a piece of data is stored in two places in the database, then
(A) Storage space is wasted
(B) Changing the data is one spot will cause data inconsistency
(C) It can be more easily accessed
(D) Both (a) and (b)
Answer: (D) Both (a) and (b)
Q12. A relational database management (RDBM) package manages data in more than one file at once. How does it organize these file? As
(A) Tables
(B) Relations
(C) Tuple
(D) Both (a) and (b)
Answer: (D) Both (a) and (b)
Q13. Goals for the design of the logical schema include
(A) Avoiding data inconsistency
(B) Being able to construct queries easily
(C) Being able to access data efficiently
(D) All of the above
Answer: (D) All of the above
Q14. What is the language used by most of the DBMSs for helping their users to access data?
(A) High level language
(B) Query language
(C) SQL
(D) 4GL
Answer: (B) Query language
Q15. Sort/report generators
(A) Are faster than index/report generators
(B) Require more disk space than index/report generators
(C) Do not need to sort before generating a report
(D) Both (a) and (b)
Answer: (B) Require more disk space than index/report generators
Database Management System MCQ – All Set
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