Download A data base management system[a]allows simultaneous access to

Reg. No.:
National Institute of Technology Karnataka, Surathkal
Department of Computer Engineering
Class Test -1 (20.08.2008)
Subject: Database Systems [CO301]
Marks: 15
1. A Data Base Management system allows simultaneous access to
multiple file. True/False, Justify.
Ans: True
2. A logical scheme is a standard way of organizing information into
accessible parts. True/False, Justify.
Ans: True
3. In order to use a DBMS. It is important to understand the physical
schema. True/False, Justify.
Ans: False, One subschema
4. In a large DBMS each user can access every subschema. True/False,
Justify.
Ans: False, each user can “see” only a small part of the entire
database.
5. Goals for the design of the logical schema include being able to access
data efficiently. True/False, Justify.
Ans: True
6. If a piece of data is stored in two places in the database then, storage
space is wasted. True/False, Justify.
Ans: True
7. A network schema permits many-to-many relationships. True/False,
Justify.
Ans: True
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8. In relational schema each field is divided into fields called Queries.
True/False, Justify.
Ans: False, Domains
9. A query is a miniature program that tells the DBMS what to do.
True/false, Justify.
Ans: True
10.
A data dictionary is a special file that contains the names of all
fields in all files. True/False, Justify.
Ans: True
11.
A good query system can be accessed only by data processing
professionals. True/False, Justify.
Ans: False, allows non-programmer to access information stored in a
database.
12.
A phone number in a database is an example of a Record.
True/False, Justify.
Ans: False, field
13.
In a database related fields are grouped to form file. True/false,
Justify.
Ans: False, Data Records
14.
____________________ Database handles full text data, images,
audio and video.
Ans: Multimedia
15.
Program/data independence is not an advantage of the data-
base approach. True/false, Justify.
Ans: False, it is.
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