11. Which of the following data constraints would be used to specify that the value of cells in a column must be one of a specific set of possible values?
a. A domain constraint
b. A range constraint
c. An intrarelation constraint
d. An interrelation constraint
Answer: (a).A domain constraint
12. In a 1:N relationship, the foreign key is placed in:
a. either table without specifying parent and child tables.
b. the parent table.
c. the child table.
d. either the parent table or the child table.
Answer: (c).the child table.
13. Which of the following column properties specifies whether or not cells in a column must contain a data value?
a. Null status
b. Data type
c. Default value
d. Data constraints
Answer: (a).Null status
14. A primary key should be defined as:
a. NULL
b. NOT NULL
c. Either of the above can be used
d. None of the above are correct
Answer: (b).NOT NULL
15. Which of the following column properties would be used to specify that cells in a column must contain a monetary value?
a. Null status
b. Data type
c. Default value
d. Data constraints
Answer: (b).Data type
16. If a denormalization situation exists with a one-to-one binary relationship, which of the following is true?
a. All fields are stored in one relation.
b. All fields are stored in two relations.
c. All fields are stored in three relations.
d. All fields are stored in four relations.
Answer: (a).All fields are stored in one relation.
17. Selecting a data type involves which of the following?
a. Maximize storage space
b. Represent most values
c. Improve data integrity
d. All of the above
Answer: (c).Improve data integrity
18. What is the best data type definition for Oracle when a field is alphanumeric and has a length that can vary?
a. VARCHAR2
b. CHAR
c. LONG
d. NUMBER
Answer: (a).VARCHAR2
19. A multidimensional database model is used most often in which of the following models?
a. Data warehouse
b. Relational
c. Hierarchical
d. Network
Answer: (a).Data warehouse
20. Which of the following is not a factor to consider when switching from small to large block size?
a. The length of all of the fields in a table row.
b. The number of columns
c. Block contention
d. Random row access speed
Answer: (b).The number of columns
Page 2 of 19

GATE CSE Resources

Questions from Previous year GATE question papers

UGC NET Computer science Resources

UGC NET Previous year questions and practice sets

NET General Paper 1

UGC NET Previous year questions and practice sets
prepbytes affliate link

GATE CSE Online Test

Attempt a small test to analyze your preparation level. This GATE exam includes questions from previous year GATE papers.

UGC NET practice Test

Practice test for UGC NET Computer Science Paper. The questions asked in this NET practice paper are from various previous year papers.