Record in one table that have no matching records in a related table are known as ________

The CP/M, which stands for ________, was the first operating system designed for the Intel 8080 chip, the first processor for PCs

Fill in the blank(s) with correct word

Which of (a) to (d) is false: The size of a hash table

a. should be a power of 2 for quadratic probing b. should be a prime number for linear probing c. should be about 2N for quadratic probing d. should be about N for separate chaining e. two or more of the above are false