Size of Cache

Embedded System

This set of Embedded Systems Multiple Choice Questions & Answers (MCQs) focuses on “Size of Cache”.

1. Which of the following cache has a separate comparator for each entry?
a) direct mapped cache
b) fully associative cache
c) 2-way associative cache
d) 16-way associative cache

2. What is the disadvantage of a fully associative cache?
a) hardware
b) software
c) memory
d) peripherals

3. How many comparators present in the direct mapping cache?
a) 3
b) 2
c) 1
d) 4

4. Which mapping of cache is inefficient in software viewpoint?
a) fully associative
b) 2 way associative
c) 16 way associative
d) direct mapping

5. Which mechanism splits the external memory storage into memory pages?
a) index mechanism
b) burst mode
c) distributive mode
d) a software mechanism

6. Which of the following cache mapping can prevent bus thrashing?
a) fully associative
b) direct mapping
c) n way set associative
d) 2 way associative

7. Which cache mapping have a sequential execution?
a) direct mapping
b) fully associative
c) n way set associative
d) burst fill

8. Which address is used for a tag?
a) memory address
b) logical address
c) cache address
d) location address

9. In which of the following the data is preserved within the cache?
a) logical cache
b) physical cache
c) unified cache
d) harvard cache

10. What is the disadvantage of the physical address?
a) debugging
b) delay
c) data preservation
d) data cleared

11. Which cache memory solve the cache coherency problem?
a) physical cache
b) logical cache
c) unified cache
d) harvard cache

12. What type of cache is used in the Intel 80486DX?
a) logical
b) physical
c) harvard
d) unified

13. Which of the following has a separate cache for the data and instructions?
a) unified
b) harvard
c) logical
d) physical

14. Which type of cache is used the SPARC architecture?
a) unified
b) harvard
c) logical
d) physical

15. Which of the following approach uses more silicon area?
a) unified
b) harvard
c) logical
d) physical

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