Memory Mapping Quiz
Memory Mapping Quiz
Test your knowledge on memory mapping techniques with this engaging quiz! Dive into the complexities of cache management and explore the difference between fully associative, direct, and k-way set associative mapping.
- Assess your understanding of cache memory concepts.
- Multiple choice questions designed to challenge your knowledge.
- Find out if you can master the intricacies of memory mapping!
What is Fully Associative Mapping?
Fully associative mapping is the storing of data in any free cache block rather than forcing each memory address into one particular block of memory.
Fully associative mapping is the collecting of data in any free cache block rather than forcing each memory address into one particular block of memory.
Fully associative mapping is when cache lines are grouped into sets where each set contains k number of lines.
A particular block of main memory can map to only one particular line of the cache is know as Fully Associative Mapping.
A fully associative mapped cache of size 512 KB with block size 1 KB. There are 17 bits in the tag. What is the size of main memory and Tag directory?
256 MB, 1000 bytes
128 MB, 1088 bytes
128 KB, 1000 bytes
256 KB, 1066 bytes
What is Direct Mapping ?
A) A cache mapping technique that maps one memory address block from main memory to one specific line in cache.
B) Storing data in any free cache block
C) A special very high-speed memory used to speed up the access of memory by synchronizing with high-speed CPUs.
D) It is a compromise between direct and fully associative cache mapping schemes
Which of the following is NOT a field in the direct mapping address structure?
A) Line Number
Word
Tag
Block Size
What is the first step in the direct mapping process ?
A) If the Tag sections of the two memory addresses match, we will get a Cache Hit.
B) The memory address must be mapped from main memory to a specific line in cache, and assigned a Tag
C) The CPU compares the Tag of the memory address to the Tag of the address found in Cache
D) The CPU requests a particular memory address
THE FOLLOWING INFORMATION APPLIES TO QUESTIONS 4 to 5. You are given a block size of 4 bytes, cache block of 64KB and a 24 bit address. Determine the size of the following: I. Tag II. Line Number III. Word
12, 22, 4
22, 14, 8
8, 14, 12
6, 22, 2
Determine the size of the Memory Address.
6
8
22
12
The main types of main memory mapping functions:
K-Way Set Associative Mapping
Fully Associative Mapping
Directly Set Mapping
Direct Mapping
What is not a disadvantage of K-way mapping ?
A. After certain cache size increment there is practically no improvement to having less k-way associativity.
B. The complexity of the cache increases as the associativity increments.
C. The complexity of the cache decreases as the associativity increments.
D. 4-way mapping is more unpredictable than 2way mapping.
What is not an advantages of k-way mapping.
A. It significantly improves the hit ratio on top direct mapping.
B. It only must use the complex comparison hardware to find the correct set instead of comparing the overall cache lines.
C. It has less crashes since it has more slots to pick from in any event, when the cache lines map to a similar set.
It takes only 1 of the advantages of direct and fully associative mapping.
To work out the Tag, it is:
A. PA-(SN+BO)
B. PA+(SN-BO)
C. SN-(PA+BO)
D. BO+(SN-PA)
What is k-way set Associative mapping?
A. K-way set Associative mapping is the simplest approach: each main memory address maps to exactly one cache block.
B. It is a compromise between direct and fully associative cache mapping schemes.
C. K-way set Associative mapping is a cache mapping technique that allows to map a block of main memory to any freely available cache line.
D. K-way set associative mapping permits data to be stored in any cache block, instead of forcing each memory address into one block.
A cache memory can hold 64 Kbytes. Data is transferred between main memory and the cache in blocks of 32 bytes each. The main memory consists of 2 GigaBytes. In a 2-way set associative cache scheme. Addressing is done at the byte-level. The Tag would be?
12 Bits
16 Bits
14 Bits
20 Bits
A main memory block in Fully Associative mapping can load any line of cache.
Yes
No
Memory address is interpreted as:
Tag and cache
Tag and word
Word and power consumption
Word and cache
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