CS403 Final Term Preparation 2025 Important MCQS Lectures 19-30

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This series focuses on Lectures 19 to 30, covering essential DBMS topics in a student-friendly way with detailed explanations and helpful examples. Dive into the world of functional dependencies, normalization, and transaction management with us.
Topics Covered:
1️⃣ Functional Dependency
Definition and properties of functional dependency
Identifying keys using functional dependencies
Role of functional dependency in normalization
2️⃣ Normalization Techniques
First Normal Form (1NF)
Second Normal Form (2NF)
Third Normal Form (3NF)
Boyce-Codd Normal Form (BCNF)
Higher Normal Forms (4NF, 5NF)
3️⃣ Data Anomalies
Insertion, deletion, and update anomalies
Resolving anomalies using normalization
4️⃣ De-normalization
When and why de-normalization is used
Trade-offs between normalization and de-normalization
5️⃣ Physical Database Design
Designing fields and records
Coding and compression techniques
6️⃣ Indexing
Ordered indices
Clustered and non-clustered indices
Dense and sparse indices
Multi-level indices
7️⃣ Transaction Management
Properties of transactions (ACID)
Transaction schedules: Serial and non-serial
Conflict and view serializability
8️⃣ Concurrency Control
Lock-based concurrency control
Two-phase locking protocol (2PL)
Deadlocks and their resolution
9️⃣ Incremental Logging
Deferred updates vs immediate updates
Undo and redo operations in recovery
10️⃣ Views and Materialized Views
Simple and complex views
Benefits and limitations of views
Materialized views and refresh strategies
Why Watch This Series?
✅ Simplified explanations of complex DBMS topics
✅ Helpful examples for exams, assignments, and GDBs
✅ Visual aids with topic-focused annotations and stickers
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