25 Questions
What is a prerequisite for parallel processing of multiple processes in a computer system?
Multiple hardware processors
What is a benefit of having multiple hardware processors in a computer system?
Parallel processing of multiple processes
What is a requirement for a computer system to execute multiple processes simultaneously?
Multiple hardware processors
What is an advantage of parallel processing in a computer system?
Increased processing power
In a computer system, what enables the parallel execution of multiple processes?
Multiple hardware processors
What is the purpose of the write_item(X) command?
To include the steps involved in write operations
What happens when the write_item(X) command is executed?
The program variable is updated with the buffer content
What is the relationship between the buffer and the program variable X?
Data is copied from the buffer to the program variable
What is the purpose of the READ AND WRITE OPERATIONS module?
To study the concepts of read and write operations
What is the significance of the Slide 1-13 in the context of transaction processing?
It is an introduction to the module on transaction processing
What is the primary purpose of the recovery manager in a DBMS?
To ensure database recovery from failures
What is the system log used for in a DBMS?
To log all transaction operations
What type of failures can the recovery manager recover from?
Transaction failures
What type of information is stored in the system log?
Transaction operations and information
Why is it necessary to maintain a system log in a DBMS?
To ensure recovery from failures
Why may redo of an operation be necessary?
Because a failure occurs before writing to the actual database on disk
What is the purpose of redo in a transaction?
To redo the updates in a transaction if a failure occurs
What happens to updates in a transaction before a failure occurs?
Updates are recorded in the log
What is the main concern before a failure occurs in a transaction?
That the updates are written to the actual database on disk
What is the risk if a failure occurs before writing to the actual database on disk?
The updates may not be written to the actual database on disk
What are the desirable properties of transactions in a computer system?
Atomicity, Consistency, and Durability
What type of failure can occur in a transaction?
All of the above
What is the primary goal of transaction management systems?
To ensure data consistency and integrity
What happens when a transaction is rolled back due to a failure?
The transaction is reverted to its initial state
What is the main benefit of using atomicity in transactions?
Ensured data consistency and integrity
This quiz covers the concept of parallel processing in computer systems with multiple hardware processors. It explains how multiple CPUs enable simultaneous processing of multiple processes.
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