Mapping Functions Quiz

2. For set associative mapping if cache has 8 sets with 16 lines each how many lines are in cache? (Choose One)
16 lines
64 lines
64 lines
None of the above
With direct mapping the memory block of main memory can map to more than one possible location in cache.
True
False
With 2-way set associative mapping how many lines are within each set? (Choose one)
4 lines
1 line, but cache has 2 sets
8 lines
2 lines
In set associative mapping a main memory block can go to any line within the correct set in cache.
True
False
With fully associative mapping main memory and cache has the same number of lines
True
False
With direct mapping each line in cache is comprised of the data word and its corresponding tag.
True
False
With direct mapping the format of the main memory address is mainly divided into three parts, They are: (Choose one)
Tag, Block and Word.
Tag, Set and Word
Tag, Section and Word
Set, Word and Bit
What is one advantage of fully associative mapping over direct mapping? (Choose one)
Higher cache hit rate
Low comparison/search time
Lower cache capacity
None of the above
What does s + w represent in the memory address? (Choose one)
Number of addressable units
Block size
Address length
Size of tag
What is one disadvantage of fully associative mapping? (Choose one)
Low performance
High search/comparison time
Lower cache capacity
None of the above
Fully associative mapping is a compromise between direct mapping and set associative mapping.
True
False
In a fully associative mapping, where can a block be placed in the cache memory? (Choose one)
In a cache line determined by the tag bits of the block address
None of the above
Anywhere in the cache memory
In a cache line determined by the word id bits of the block address
Memory Addresses in fully associative mapping are made up of: (Choose one)
Tag, line and word
Tag and word
Tag, set and word
Line and word
Consider a direct mapped cache of size 32KB with a block size of 1024 bytes. How many bits are required to represent line of cache memory?
7
5
8
11
We have a fully associative mapped cache of 16KB with a block size of 64 bytes and the size of main memory is 128KB. How many cache blocks are there?
256
28
1024
1024
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