Information Security System: Questions

Topics: Computer, Central processing unit, Input/output Pages: 8 (584 words) Published: March 3, 2014

 A ____ is a shared electrical or optical channel that connects two or more devices. Selected Answer:
 
bus
Correct Answer:
 
bus

Question 2
1 out of 1 points

2. The ____ carries commands, command responses, status codes, and similar messages.

Selected Answer:
 
control bus
Correct Answer:
 
control bus

Question 3
1 out of 1 points

3. The ____ governs the format, content, and timing of data, memory addresses, and control messages sent across the bus.

Selected Answer:
 
bus protocol
Correct Answer:
 
bus protocol

Question 4
1 out of 1 points

4. When the CPU is the focus of all computer activity, all other devices are ____.

Selected Answer:
 
bus slaves
Correct Answer:
 
bus slaves

Question 5
1 out of 1 points

5. In a ____, any device can assume control of the bus or act as a bus master for transfers to any other device.

Selected Answer:
 
peer-to-peer bus
Correct Answer:
 
peer-to-peer bus

Question 6
1 out of 1 points

6. The ____ connects only the CPU and memory.

Selected Answer:
 
memory bus
Correct Answer:
 
memory bus

Question 7
1 out of 1 points

7. ____ is a family of bus standards found in nearly all small and midrange computers and many larger ones.

Selected Answer:
 
Peripheral Component Interconnect
Correct Answer:
 
Peripheral Component Interconnect

Question 8
1 out of 1 points

8. A(n) ____ is a communication pathway from the CPU to a peripheral device.

Selected Answer:
 
I/O port
Correct Answer:
 
I/O port

Question 9
1 out of 1 points

9. In many mainframe computers, a device controller can be a dedicated special-purpose computer called an ____.

Selected Answer:
 
I/O channel
Correct Answer:
 
I/O channel

Question 10
1 out of 1 points

10. A ____ is a reserved area of main memory accessed on a last-in, first-out (LIFO) basis.

Selected Answer:
 
stack
Correct Answer:
 
stack

Question 11
1 out of 1 points

11. If a buffer isn’t large enough to hold a full page, an error called a ____ occurs.

Selected Answer:
 
buffer overflow
Correct Answer:
 
buffer overflow

Question 12
1 out of 1 points

12. The ____ states that when multiple resources are required to produce something useful, adding more of a single resource produces fewer benefits.

Selected Answer:
 
law of diminishing returns
Correct Answer:
 
law of diminishing returns

Question 13
1 out of 1 points

13. A ____ is a processor that guesses what data will be requested in the near future and loads this data from the storage device into the cache before it’s actually requested.

Selected Answer:
 
cache controller
Correct Answer:
 
cache controller

Question 14
1 out of 1 points

14. The ratio of cache hits to read accesses is called the cache’s ____.

Selected Answer:
 
hit ratio
Correct Answer:
 
hit ratio

Question 15
1 out of 1 points

15. When three cache levels are in use, the cache closest to the CPU is called a ____ cache.

Selected Answer:
 
level one
Correct Answer:
 
level one

Question 16
1 out of 1 points

16. The latest trend in high-performance CPU design embeds multiple CPUs and cache memory on a single chip—an approach called ____.

Selected Answer:
 
multicore architecture
Correct Answer:
 
multicore architecture

Question 17
1 out of 1 points

17. The phrase ____ describes approaches to increasing processing and other computer system power by using larger and more powerful computers.

Selected Answer:
 
scaling up
Correct Answer:
 
scaling up

Question 18
1 out of 1 points

18. ____ is a technique that reduces the number of bits used to encode data, such as a...
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