RAID technology MCQs in DBMS

By: Prof. Dr. Fazal Rehman Shamil | Last updated: September 23, 2024

MCQs on RAID Technology in DBMS

1. What does RAID stand for in the context of data storage?A. Redundant Array of Inexpensive Disks
   B. Redundant Array of Independent Disks
   C. Reliable Array of Independent Disks
   D. Reliable Array of Inexpensive Disks
   Answer: B. Redundant Array of Independent Disks
2. Which RAID level uses striping without any redundancy?A. RAID 0
   B. RAID 1
   C. RAID 5
   D. RAID 10
   Answer: A. RAID 0
3. What is the main advantage of RAID 1?A. High read and write speed
   B. Data mirroring for fault tolerance
   C. High storage efficiency
   D. Improved read speed but slow write speed
   Answer: B. Data mirroring for fault tolerance
4. Which RAID level combines both striping and mirroring?A. RAID 0
   B. RAID 1
   C. RAID 5
   D. RAID 10
   Answer: D. RAID 10
5. What is the primary benefit of RAID 5?A. Data mirroring
   B. Data striping with parity for fault tolerance
   C. Highest read speed
   D. Lowest cost
   Answer: B. Data striping with parity for fault tolerance
6. In RAID 6, how many disks can fail without losing data?A. One
   B. Two
   C. Three
   D. Four
   Answer: B. Two
7. Which RAID level offers the best performance but no fault tolerance?A. RAID 0
   B. RAID 1
   C. RAID 5
   D. RAID 6
   Answer: A. RAID 0
8. What is the minimum number of disks required for RAID 5?A. Two
   B. Three
   C. Four
   D. Five
   Answer: B. Three
9. Which RAID level is known for providing high redundancy and high performance by using both striping and parity?A. RAID 0
   B. RAID 1
   C. RAID 5
   D. RAID 10
   Answer: C. RAID 5
10. What type of RAID configuration is best suited for applications requiring high read and write speeds but not redundancy?A. RAID 0
    B. RAID 1
    C. RAID 5
    D. RAID 6
    Answer: A. RAID 0
11. In RAID technology, what does ‘striping’ refer to?A. Storing duplicate copies of data
    B. Distributing data across multiple disks to improve performance
    C. Calculating parity for error checking
    D. Encrypting data on the disks
    Answer: B. Distributing data across multiple disks to improve performance
12. Which RAID level requires at least four disks and uses double parity for extra fault tolerance?A. RAID 0
    B. RAID 1
    C. RAID 5
    D. RAID 6
    Answer: D. RAID 6
13. What is a disadvantage of RAID 10 compared to RAID 5?A. Slower read speed
    B. Higher cost due to more disks required
    C. Less fault tolerance
    D. More complex to implement
    Answer: B. Higher cost due to more disks required
14. Which RAID level provides fault tolerance by duplicating the same data on two disks?A. RAID 0
    B. RAID 1
    C. RAID 5
    D. RAID 10
    Answer: B. RAID 1
15. In a RAID array, what is the purpose of the parity bit?A. To encrypt data
    B. To improve read/write speed
    C. To check for data integrity and provide fault tolerance
    D. To reduce storage space
    Answer: C. To check for data integrity and provide fault tolerance

 

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
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5. Database Management System Architecture MCQs in DBMS
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   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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