Database MCQs from book chapter

Database MCQs from the book chapter

1. Built-in functions are also named as …

a) user-defined

b) subprograms

c) subroutines

d) none

[su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]D[/su_spoiler]

2. Which statement  is not true about function?

a) it can not return any value

b) independent program

c) function is also referred as modules

d) Both (a) & (c)

[su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]D[/su_spoiler]

3. A function that does not return any thing has return type… 

a) void

b) null

c) float

d) nothing

[su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]A[/su_spoiler]

4. Protype means …

a) sample

b) model

c) definition

d) both (a) & (b)

[su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]D[/su_spoiler]

5. Declaring variables inside a function are called as …

a) private variables

b) external variables

c) local variables

d) global variables

[su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]C[/su_spoiler]

6. We call pre-defined functions as …

a) subprograms

b) built-in functions

c) user -defined

d) subroutines

[su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]B[/su_spoiler]

7. Which one is the advantage of a function?

a) re-usability

b) eliminate duplicate code

c) easy to understand

d) none

[su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]A[/su_spoiler]

8. Sub-programs in C-language are called as …

a) procedures

b) functions

c) modules

d) methods

[su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]B[/su_spoiler]

9. We can a function using the reference of its …

a) definition

b) parameter

c) name

d) all of the above

[su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]C[/su_spoiler]

10. Which of the following  can’t be nested?

a) do-while statament

b) if statement

c) while statement 

d) user-defined functions

[su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]D[/su_spoiler]

11. The parameters defined in the header of function are called as …

a) default parameters

b) actual parameters

c) command-line parameters

d) formal parameters

[su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]D[/su_spoiler]

12. The global variables are created in …

a) hard disc

b) cache

c)RAM 

d) ROM

[su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]C[/su_spoiler]

 

More MCQs Of Database Systems

1. Database Models MCQs in DBMS
   1. Hierarchical model MCQs in DBMS
   2. Network model MCQs in DBMS
   3. Relational model MCQs in DBMS
   4. Object-oriented model MCQs in DBMS
   5. NoSQL databases MCQs in DBMS
2. Relational Database Model MCQs in DBMS
   1. tables, attributes, tuples, and relations MCQs in DBMS
   2. Primary keys and foreign keys MCQs in DBMS
   3. Integrity constraints MCQs in DBMS
3. SQL (Structured Query Language) MCQs in DBMS
   1. Data Definition Language (DDL) MCQs in DBMS
   2. Data Manipulation Language (DML) MCQs in DBMS
   3. Data Control Language (DCL) MCQs in DBMS
   4. Transaction Control Language (TCL) MCQs in DBMS
   5. Advanced SQL queries and functions MCQs in DBMS
4. Database Design MCQs in DBMS
   1. Entity-Relationship (ER) modeling MCQs in DBMS
   2. Extended ER modeling MCQs in DBMS
   3. Normalization and normal forms (1NF, 2NF, 3NF, BCNF) MCQs in DBMS
   4. Denormalization MCQs in DBMS
5. Database Management System Architecture MCQs in DBMS
   1. Three-schema architecture (external, conceptual, internal) MCQs in DBMS
   2. Data independence MCQs in DBMS
   3. DBMS components and functions MCQs in DBMS
6. Storage and File Structure MCQs in DBMS
   1. Data storage on physical media MCQs in DBMS
   2. File organization and access methods MCQs
   3. Indexing (B-trees, hash indexing) MCQs in DBMS
   4. RAID technology MCQs in DBMS
7. Query Processing and Optimization MCQs in DBMS
8. Database Transaction Management MCQs in DBMS
   1. ACID properties (Atomicity, Consistency, Isolation, Durability) MCQs in DBMS
   2. Transaction states and lifecycle MCQs in DBMS
   3. Concurrency control techniques (locking, timestamping, multiversion) MCQs in DBMS
   4. Deadlock detection and resolution MCQs in DBMS
9. Database Security and Authorization MCQs in DBMS
   1. Authentication and authorization mechanisms MCQs in DBMS
   2. Data encryption techniques MCQs in DBMS
   3. Role-based access control MCQs in DBMS
   4. SQL injection prevention MCQs in DBMS
10. Backup and Recovery MCQs in DBMS
    1. Backup types and strategies MCQs in DBMS
    2. Recovery techniques (log-based, shadow paging) MCQs in DBMS
    3. Disaster recovery planning MCQs in DBMS
11. Distributed Databases MCQs in DBMS
    1. Distributed database architecture MCQs MCQs in DBMS
    2. Data fragmentation, replication, and allocation in DBMS
    3. Distributed query processing MCQs in DBMS
    4. Consistency models and protocols MCQs in DBMS

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