What are the three levels in the memory hierarchy? How are they different?
What will be an ideal response?
The three levels are the sensory store, short-term memory and long-term memory. The sensory store is an extremely transient repository for data sent to it via the senses. Most of what comes into the sensory store is immediately discarded. The intermediate layer, short-term memory, has severe limitations in capacity and volatility. According to Miller’s article, short-term is capable of storing 7 ± 2 chunks. Long-term memory is virtually unlimited, but unfortunately it takes a great deal of effort and time to transfer data from short-term to long-term memory.
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The load factor of a hash table is calculated as ______.
a) table size + current number of table items b) table size – current number of table items c) current number of table items table size d) current number of table items / table size
Which of the following is true about a deep copy?
A. The address of a pointer in the original is copied to a pointer inside the copy. B. The address of a pointer in the original is different than the address of the corresponding pointer in the copy. C. It is a copy made deep within the code of a long function (and therefore, not so easy to debug) D. It is never made with the aid of a copy constructor.