Podcast
Questions and Answers
In direct mapping, how is the position of each block determined?
In direct mapping, how is the position of each block determined?
- Randomly chosen
- Based on FIFO
- Based on LRU block
- Predetermined (correct)
What is the main difference between associative mapping and direct mapping in terms of flexibility?
What is the main difference between associative mapping and direct mapping in terms of flexibility?
- Direct mapping allows random placement of main memory blocks
- Associative mapping allows placing any main memory block in any cache block (correct)
- Associative mapping has predetermined positions for each block
- Direct mapping requires no search of tags
What is the key cost difference between associative cache and direct mapping cache?
What is the key cost difference between associative cache and direct mapping cache?
- Complexity of the replacement algorithm
- Search time for tags (correct)
- Speed of data retrieval
- Cost of the cache memory itself
Which replacement algorithm involves overwriting the least recently used (LRU) block?
Which replacement algorithm involves overwriting the least recently used (LRU) block?
What does set associative mapping represent a combination of?
What does set associative mapping represent a combination of?
In which type of mapping does each block have some flexibility in its placement?
In which type of mapping does each block have some flexibility in its placement?
What is the process by which data can be erased in EPROM memory?
What is the process by which data can be erased in EPROM memory?
What type of memory allows data to be written to it and erased using an electrical voltage?
What type of memory allows data to be written to it and erased using an electrical voltage?
Which characteristic describes the working of cache memory that makes the main memory appear faster to the processor?
Which characteristic describes the working of cache memory that makes the main memory appear faster to the processor?
In a write-through protocol, how are cache location and main memory location updated?
In a write-through protocol, how are cache location and main memory location updated?
What is the purpose of the dirty or modified bit in cache memory?
What is the purpose of the dirty or modified bit in cache memory?
How does block replacement occur in cache memory under a write-back or copy-back method?
How does block replacement occur in cache memory under a write-back or copy-back method?
What is the main purpose of semiconductor main memory?
What is the main purpose of semiconductor main memory?
Which type of memory is directly accessible by the processor?
Which type of memory is directly accessible by the processor?
Which type of RAM requires dynamic refreshing to retain data?
Which type of RAM requires dynamic refreshing to retain data?
In which type of memory is data written only once and remains unchanged even when power is removed?
In which type of memory is data written only once and remains unchanged even when power is removed?
What is the purpose of Programmable Read-Only Memory (PROM)?
What is the purpose of Programmable Read-Only Memory (PROM)?
Which type of RAM does not require dynamic refreshing and supports both read and write operations?
Which type of RAM does not require dynamic refreshing and supports both read and write operations?
