.

1.The offset field of a main memory address is used to determine:

A		if the cache entry is valid
B		if the cache entry is the desired block
C		the location of the desired data in the cache block
D		none of these

2.Cache mapping is necessary because:

	A	the address generated by the CPU must be converted to a cache location
	B	cache is so small that its use requires a map
	C	cache is larger than main memory and mapping allows us to store multiple copies of each piece of data from main memory
	D	none of the above

3.The RTN for the first step in the fetch-decode-execute cycle is:

A		MAR PC
B		PC PC + 1
C		IR MAR
D		IR MBR

4.To prevent the whole WSC from going offline if power is lost, a WSC has an _______

	A	uninterruptible power supply
	B	signal tower
	C	charger
	D	battery