Top 1000+ Solved DataBase Management System (DBMS) MCQ Questions Answer

From 16 to 30 of 1187

Q. Disadvantages of File systems to store data is:

a. data redundancy and inconsistency

b. data isolation

c. all of the options

d. difficulty in accessing data

  • c. all of the options

Q. Which of the following is not a Storage Manager Component?

a. transaction manager

b. buffer manager

c. file manager

d. logical manager

  • d. logical manager

Q. Data Manipulation Language enables users to

a. retrieval of information stored in database

b. deletion of information from the database

c. all of the above

d. insertion of new information into the database

  • c. all of the above

Q. Which of the following is not an Schema?

a. logical schema

b. critical schema

c. database schema

d. physical schema

  • b. critical schema

Q. Which of the following is Database Language?

a. all of the options

b. query language

c. data definition language

d. data manipulation language

  • a. all of the options

Q. Which of the following in not a function of DBA?

a. authorization for data access

b. network maintenance

c. routine maintenance

d. schema definition

  • b. network maintenance

Q. Which of the following is a Data Model?

a. object-based data model

b. all of the options

c. entity-relationship model

d. relational data model

  • b. all of the options

Q. Column header is refer as

a. table

b. domain

c. attributes

d. relation

  • c. attributes

Q. _______ allow us to identify uniquely a tuple in the relation.

a. schema

b. superkey

c. domain

d. attribute

  • b. superkey

Q. Minimal Superkeys are called

a. schema keys

b. attribute keys

c. candidate keys

d. domain keys

  • c. candidate keys

Q. Which of the following is the right syntax for the assertion?

a. create assertion ‘assertion-name’ check ‘predicate’;

b. create assertion check ‘predicate’ ‘assertion-name’;

c. create assertions ‘predicates’;

d. all of the mentioned

  • a. create assertion ‘assertion-name’ check ‘predicate’;

Q. Values of one type can be converted to another domain using which of the following?

a. cast

b. drop type

c. alter type

d. convert

  • a. cast

Q. Which of the following closely resembles Create view?

a. create table . . .like

b. create table . . . as

c. with data

d. create view as

  • b. create table . . . as

Q. In contemporary databases, the top level of the hierarchy consists of              each of which can contain            

a. catalogs, schemas

b. schemas, catalogs

c. environment, schemas

d. schemas, environment

  • a. catalogs, schemas

Q. Which of the following is used to provide privilege to only a particular attribute?

a. grant select on employee to amit

b. grant update(budget) on department to raj

c. grant update(budget,salary,rate) on department to raj

d. grant delete to amit

  • b. grant update(budget) on department to raj
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