**high performance computing mcq sppu**

**High performance computing multiple choice questions**

**1. The primary and essential mechanism to support the sparse matrices is**

- Gather-scatter operations
- Gather operations
- Scatter operations
- Gather-scatter technique

Gather-scatter operations

**2. In the gather operation, a single node collects a ———**

- Unique message from each node
- Unique message from only one node
- Different message from each node
- None of Above

Unique message from each node

**3. In the scatter operation, a single node sends a ————**

- Unique message of size m to every other node
- Different message of size m to every other node
- Different message of different size m to every other node
- All of Above

Unique message of size m to every other node

**4. Is All to all Bradcasting is same as All to all personalized communication?**

- Yes
- No

No

**5. Is scatter operation is same as Broadcast?**

- Yes
- No

No

**6. All-to-all personalized communication is also known as**

- Total Exchange
- Personal Message
- Scatter
- Gather

Total Exchange

**7. By which way, scatter operation is different than broadcast**

- Message size
- Number of nodes
- Same
- None of above

Message size

**8. The gather operation is exactly the _ of the scatter operation**

- Inverse
- Reverse
- Multiple
- Same

Inverse

**9. The gather operation is exactly the inverse of the_**

- Scatter operation
- Broadcast operation
- Prefix Sum
- Reduction operation

Scatter operation

**hpc mcq questions**

**10. The dual of one-to-all broadcast is all-to-one reduction. True or False?**

- TRUE
- FALSE

TRUE

**11. A binary tree in which processors are (logically) at the leaves and internal nodes are routing nodes.**

- TRUE
- FALSE

TRUE

**12. Group communication operations are built using point-to-point messaging primitives**

- TRUE
- FALSE

TRUE

**13. Communicating a message of size m over an uncongested network takes time ts + tmw**

- True
- False

True

**14. Parallel programs: Which speedup could be achieved according to Amdahl´s law for infinite number of processors if 5% of a program is sequential and the remaining part is ideally parallel?**

- Infinite speedup
- 5
- 20
- None of above

20

**15. Shift register that performs a circular shift is called**

- Invalid Counter
- Valid Counter
- Ring
- Undefined

Ring

**16. 8 bit information can be stored in**

- 2 Registers
- 4 Registers
- 6 Registers
- 8 Registers

8 Registers

**17. The result of prefix expression * / b + – d a c d, where a = 3, b = 6, c = 1, d = 5 is**

- 0
- 5
- 10
- 8

10

**18. The height of a binary tree is the maximum number of edges in any root to leaf path. The maximum number of nodes in a binary tree of height h is?**

- 2h – 1
- 2h – 1 – 1
- 2h + 1 – 1
- 2 * (h+1)

2h + 1 – 1

**19. A hypercube has_**

- 2^d nodes
- 2d nodes
- 2n Nodes
- N Nodes

2^d nodes

**Parallel computing mcq with answers**

**20. The Prefix Sum Operation can be implemented using the_**

- All-to-all broadcast kernel
- All-to-one broadcast kernel
- One-to-all broadcast Kernel
- Scatter Kernel

All-to-all broadcast kernel

**21.In the scatter operation_**

- Single node send a unique message of size m to every other node
- Single node send a same message of size m to every other node
- Single node send a unique message of size m to next node
- None of Above

Single node send a unique message of size m to every other node

**22. In All-to-All Personalized Communication Each node has a distinct message of size m for every other node**

- True
- False

True

**23. A binary tree in which processors are (logically) at the leaves and internal nodes arerouting nodes.**

- True
- False

True

**24. In All-to-All Broadcast each processor is thesource as well as destination.**

- True
- False

True

**Data analytics mcqs with answers for SPPU**

**High performance computing mcq unit 2**

**High performance computing mcq unit 1**

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