Types of Parallelism and Concurrency in Computer Architecture: Interactive Learning Quizzes

Question 1

What primary benefit does data parallelism offer?

Accepted Answer

Enhanced performance by distributing data across multiple processors

Answer

Simplified programming

Answer

Reduced memory usage

Question 2

Which of the following is **not** a type of parallelism?

Accepted Answer

Instruction pipelining

Answer

Data parallelism

Answer

Task parallelism

Answer

Control parallelism

Question 3

In **data parallelism**, which of the following operations are performed concurrently?

Accepted Answer

Same operation on different data elements

Answer

Different operations on same data element

Answer

Same operation on same data element in a sequence

Answer

Different operations on different data elements

Question 4

Which type of parallelism is suitable for applications where tasks can be **independently executed**?

Accepted Answer

Task parallelism

Answer

Data parallelism

Answer

Control parallelism

Answer

Pipeline parallelism

Question 5

In **control parallelism**, which of the following is manipulated to achieve concurrency?

Accepted Answer

Flow of control

Answer

Data dependencies

Answer

Memory access patterns

Answer

Instruction execution order

Question 6

Which of the following techniques can help reduce communication overhead in parallel systems?

Accepted Answer

Data caching

Answer

Load balancing

Answer

Message passing

Answer

Thread synchronization

Question 7

Which of the following describes the distribution of data across multiple processing elements to be operated on concurrently?

Accepted Answer

Data parallelism

Answer

Task parallelism

Answer

Control parallelism

Question 8

Which type of control parallelism enables threads to execute distinct paths within a program?

Accepted Answer

Speculative execution

Answer

Branch prediction

Answer

Dataflow execution

Question 9

Which of the following is NOT considered a type of parallelism?

Accepted Answer

Sequential processing

Answer

Data parallelism

Answer

Control parallelism

Answer

Task parallelism

Question 10

Data parallelism involves processing:

Accepted Answer

Multiple data elements concurrently

Answer

Sequential data elements

Answer

Multiple control flow operations concurrently

Answer

Multiple independent tasks concurrently

Question 11

Which of the following is a crucial advantage of task parallelism?

Accepted Answer

Enhanced flexibility and adaptability

Answer

Simplified debugging process

Answer

Reduced memory consumption

Question 12

Control parallelism is primarily used to enhance:

Accepted Answer

Concurrent execution of control flow

Answer

Efficient memory utilization

Answer

Optimal task execution efficiency

Answer

Accelerated data processing speed

Question 13

In task parallelism, each thread executes a:

Accepted Answer

Dedicated task

Answer

Part of the same shared task

Answer

Random sequence of tasks

Answer

Loop iteration

Question 14

What is the key benefit of using shared memory in concurrent programming?

Accepted Answer

Allows threads to communicate and share data

Answer

Prevents race conditions

Answer

Reduces the overhead of context switching

Question 15

In parallel programming, what is the primary purpose of utilizing a barrier?

Accepted Answer

To synchronize threads, ensuring they all reach a specific point before continuing execution

Answer

To provide exclusive access to critical sections

Answer

To prevent race conditions from occurring

Question 16

Which type of parallelism involves distributing the same operation across multiple processing units, each operating on distinct data elements?

Accepted Answer

Data parallelism

Answer

Control parallelism

Answer

Task parallelism

Answer

Instruction-level parallelism

Question 17

Which of the following is NOT an advantage of task parallelism?

Accepted Answer

Enhanced performance for tasks with inherent dependencies

Answer

Improved scalability

Answer

Reduced execution time

Answer

Efficient load balancing

Question 18

Control parallelism primarily focuses on:

Accepted Answer

Optimizing the sequencing and scheduling of instructions to enhance performance

Answer

Executing multiple tasks concurrently

Answer

Processing large volumes of data in parallel

Question 19

Which concurrency approach involves creating separate threads or processes to execute different tasks independently?

Accepted Answer

Thread-based concurrency

Answer

Message-passing concurrency

Answer

Data-driven concurrency

Answer

Shared memory concurrency

Question 20

A critical section is a code segment characterized by:

Accepted Answer

Requiring exclusive access to shared resources to maintain data integrity

Answer

Lack of concern for data integrity

Answer

Guaranteed occurrence of deadlocks

Answer

Allowing concurrent execution by multiple threads

Question 21

Deadlocks in concurrent systems arise when:

Accepted Answer

Multiple threads wait indefinitely for resources that are held by each other

Answer

The system encounters memory exhaustion

Answer

A single thread successfully acquires all necessary resources

Question 22

The primary purpose of utilizing synchronization primitives is to:

Accepted Answer

Coordinate access to shared resources and ensure data integrity in concurrent systems

Answer

Eliminate the possibility of deadlocks entirely

Answer

Enhance the speed of program execution

Question 23

Which of the following is NOT a benefit of concurrent programming?

Accepted Answer

Providing guaranteed real-time performance

Answer

Enhanced resource utilization

Answer

Improved responsiveness