Podcast
Questions and Answers
What is the main focus of Distributed Database Systems according to the provided curriculum?
What is the main focus of Distributed Database Systems according to the provided curriculum?
- Distributed transaction processing (correct)
- Query Processing and optimization
- Web Data Management
- Data Replication
How is a transaction defined in the context of database systems?
How is a transaction defined in the context of database systems?
- A single operation performed on the database
- A series of read-only operations
- A group of unrelated actions performed on the system
- A set of actions that transform system states consistently (correct)
What is the purpose of the Commit command in a transaction?
What is the purpose of the Commit command in a transaction?
- To roll back to the beginning of the transaction
- To finalize and make permanent the updates made by the transaction (correct)
- To undo all the changes made by the transaction
- To abort the transaction
What does Transaction management primarily deal with?
What does Transaction management primarily deal with?
Which topic is NOT included in the main curriculum of Distributed Database Systems according to the provided information?
Which topic is NOT included in the main curriculum of Distributed Database Systems according to the provided information?
What action marks the end of a transaction in database systems?
What action marks the end of a transaction in database systems?
Which property of a transaction ensures that all its writes are committed and persist even after a system failure?
Which property of a transaction ensures that all its writes are committed and persist even after a system failure?
What constitutes the base set (BS) of a transaction?
What constitutes the base set (BS) of a transaction?
Which degree of consistency ensures that a transaction does not read dirty data from other transactions?
Which degree of consistency ensures that a transaction does not read dirty data from other transactions?
At which isolation level are fuzzy reads and phantoms possible, but dirty reads are not?
At which isolation level are fuzzy reads and phantoms possible, but dirty reads are not?
What is the main role of concurrency control algorithms in transaction processing?
What is the main role of concurrency control algorithms in transaction processing?
What does a resilient system tolerate in the context of database management?
What does a resilient system tolerate in the context of database management?
What is the purpose of database consistency?
What is the purpose of database consistency?
What do the read set and write set of a transaction constitute together?
What do the read set and write set of a transaction constitute together?
Which isolation level allows for only phantoms, but no fuzzy or dirty reads?
Which isolation level allows for only phantoms, but no fuzzy or dirty reads?
What is the primary feature of Degree 3 consistency for transactions?
What is the primary feature of Degree 3 consistency for transactions?
