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Database Management Systems: Syllabus Video Lecture | Crash Course: Computer Science Engineering (CSE)
FAQs on Database Management Systems: Syllabus Video Lecture - Crash Course: Computer Science Engineering (CSE)
| 1. What is a database management system (DBMS)? |  |
Ans. A database management system (DBMS) is a software application that allows users to create, manage, and manipulate databases. It provides an interface for users to interact with the database, including tasks such as defining the database structure, querying and retrieving data, and performing data modifications.
| 2. What are the advantages of using a DBMS? | |
Ans. There are several advantages of using a DBMS. Firstly, it provides data independence, allowing users and applications to access and manipulate the data without worrying about the underlying physical storage details. Secondly, it ensures data integrity by enforcing constraints and rules on the data. Thirdly, a DBMS allows for efficient data retrieval through query optimization and indexing. Additionally, it provides concurrent access and transaction management capabilities, ensuring data consistency and preventing data conflicts.
| 3. What are the different types of DBMS architectures? | |
Ans. There are three main types of DBMS architectures: hierarchical, network, and relational. The hierarchical architecture organizes data in a tree-like structure, with parent-child relationships between records. The network architecture allows for more complex relationships between records, using a graph-like structure. The relational architecture, which is the most widely used, organizes data in tables with rows and columns, and establishes relationships between tables using keys.
| 4. What is the role of a database administrator (DBA) in managing a DBMS? | |
Ans. A database administrator (DBA) is responsible for the overall management of a DBMS. Their role includes tasks such as database design, defining the database schema, granting and revoking user permissions, monitoring and optimizing performance, ensuring data security and backup, and managing data integrity. They also handle database tuning, capacity planning, and troubleshooting any issues that arise in the DBMS.
| 5. What are the challenges of managing a large-scale DBMS? | |
Ans. Managing a large-scale DBMS comes with several challenges. Firstly, scalability becomes a major concern as the size of the database grows, requiring efficient storage allocation and indexing strategies. Secondly, ensuring high availability and fault tolerance becomes crucial to prevent downtime and data loss. Thirdly, managing concurrent access and maintaining data consistency becomes more complex. Additionally, backup and recovery processes need to be carefully planned to avoid data loss in case of failures.
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Nov 18, 2024 Last updated |
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