Computer Hardware and Parallel Processing

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What is a prerequisite for parallel processing of multiple processes in a computer system?

Multiple hardware processors (correct)
A multi-threaded operating system
A single-core processor
A single hardware processor

What is a benefit of having multiple hardware processors in a computer system?

Faster clock speed
Parallel processing of multiple processes (correct)
Increased memory capacity
Sequential processing of multiple processes

What is a requirement for a computer system to execute multiple processes simultaneously?

Multiple hardware processors (correct)
A single-core processor
A single-threaded operating system
A multi-core processor

What is an advantage of parallel processing in a computer system?

Increased processing power (C) Signup and view all the answers

In a computer system, what enables the parallel execution of multiple processes?

Multiple hardware processors (D) Signup and view all the answers

What is the purpose of the write_item(X) command?

To include the steps involved in write operations (D) Signup and view all the answers

What happens when the write_item(X) command is executed?

The program variable is updated with the buffer content (A) Signup and view all the answers

What is the relationship between the buffer and the program variable X?

Data is copied from the buffer to the program variable (D) Signup and view all the answers

What is the purpose of the READ AND WRITE OPERATIONS module?

To study the concepts of read and write operations (C) Signup and view all the answers

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 (D) Signup and view all the answers

What is the primary purpose of the recovery manager in a DBMS?

To ensure database recovery from failures (D) Signup and view all the answers

What is the system log used for in a DBMS?

To log all transaction operations (D) Signup and view all the answers

What type of failures can the recovery manager recover from?

Transaction failures (D) Signup and view all the answers

What type of information is stored in the system log?

Transaction operations and information (C) Signup and view all the answers

Why is it necessary to maintain a system log in a DBMS?

To ensure recovery from failures (A) Signup and view all the answers

Why may redo of an operation be necessary?

Because a failure occurs before writing to the actual database on disk (B) Signup and view all the answers

What is the purpose of redo in a transaction?

To redo the updates in a transaction if a failure occurs (C) Signup and view all the answers

What happens to updates in a transaction before a failure occurs?

Updates are recorded in the log (B) Signup and view all the answers

What is the main concern before a failure occurs in a transaction?

That the updates are written to the actual database on disk (D) Signup and view all the answers

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 (C) Signup and view all the answers

What are the desirable properties of transactions in a computer system?

Atomicity, Consistency, and Durability (C) Signup and view all the answers

What type of failure can occur in a transaction?

All of the above (D) Signup and view all the answers

What is the primary goal of transaction management systems?

To ensure data consistency and integrity (B) Signup and view all the answers

What happens when a transaction is rolled back due to a failure?

The transaction is reverted to its initial state (D) Signup and view all the answers

What is the main benefit of using atomicity in transactions?

Ensured data consistency and integrity (B) Signup and view all the answers