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(d) CompactFlash card Correct answer is (a)
4. Floppy disks typically hold about _____ of data, while hard disk drives typically hold several _____ of data (a) 1 MB, GBs (b) 100 KB, GBs (c) 10 MB, TBs (d) 1 MB, TBs
Correct answer is (a)
5. Of the following types of storage, which provides the fastest access to data? (a) CD-ROM (b) RAM (c) cache
(d) hard disk
Correct answer is (c)
6. Which of the following are interfaces used with hard disk drives? AGP EIDE Ultra ATA
(a) II and III only (b) I, II, and III (c) I and II only (d) I and III only
Correct answer is (a)
7. Which of the following is (are) true regarding flash memory? It uses electronic charges for recording data. It makes use of moving parts inside the chip for storing data. (a) II only (b) None (c) I and II (d) I only
Correct answer is (d)
8. Which of the following are appropriate storage media for archiving the tens of millions of bytes of data typically found on a PC hard disk drive? A floppy disk
A magnetic tape cassette A Jaz disk
(a) I and III only (b) II and III only (c) I and II only (d) I, II, and III
Correct answer is (b)
9. Which of the following is (are) true regarding floppy disks and Zip disks? Zip disks are capable of storing more data than floppy disks.
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尊重他人的劳动成果是一种美德
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Floppy disks transfer data more quickly than Zip disks. (a) II only (b) None (c) I and II (d) I only
Correct answer is (d)
10. Which of the following is not a useful strategy for organizing file data on disks so as to access the data in the shortest possible time?
(a) Organizing file data that spans multiple disk platters so as to occupy one side of a platter completely, prior to overflowing onto a different platter
(b) Organizing file data on different disk drives to allow for simultaneous access of the data
(c) Organizing file data on a disk in consecutive sectors and tracks to minimize the time required to position the disk head to the proper location
(d) Organizing file data in consecutive sectors to take advantage of faster rotational speeds Correct answer is (a)
11 When purchasing a hard disk drive, which of the following are major considerations in deciding between hard disk drives that are similar in price and capacity? The speed at which their platters rotate The length of their access times
The speed with which they transfer data to primary memory (a) I and II only (b) III only (c) I, II, and III (d) II and III only Correct answer is (c)
12 Examples of magnetic media include which of the following? Floppy disks Zip disks Hard disks
(a) I and II only (b) I and III only (c) II and III only (d) I, II, and III
Correct answer is (d)
13 Floppy disks typically hold about _____ of data, while hard disk drives typically hold several _____ of data (a) 10 MB, TBs (b) 1 MB, GBs (c) 1 MB, TBs (d) 100 KB, GBs
Correct answer is (b)
14 Of the following types of storage, which provides the fastest access to data? (a) RAM (b) CD-ROM
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尊重他人的劳动成果是一种美德
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(c) hard disk (d) cache
Correct answer is (d)
15 Which of the following is (are) true regarding flash memory? It uses electronic charges for recording data.
It makes use of moving parts inside the chip for storing data. (a) None (b) I only (c) II only (d) I and II
Correct answer is (b)
16 Which of the following is true of hard disk drives?
(a) Their access times are generally twice as long as RAM access times. (b) They require power to retain information.
(c) They use magnetic material to store information. (d) Their capacity is currently measured in MB. Correct answer is (c)
17 Of the following, which best describes what happens when a user opens a document for editing?
(a) A copy of the document is loaded from the disk into cache memory and edited in the cache.
(b) The document image is directly edited on the disk where it resides. (c) The document image is moved to free space on the disk where the image is directly edited. (d) A copy of the document is loaded from the disk into RAM and edited in RAM. Correct answer is (d)
18 Which of the following is (are) true regarding floppy disks and Zip disks? Zip disks are capable of storing more data than floppy disks. Floppy disks transfer data more quickly than Zip disks. (a) None (b) I only (c) II only (d) I and II
Correct answer is (b)
19 Which of the following is (are) true regarding flash memory storage devices?
Flash memory storage devices are generally used in small devices like digital cameras and personal digital assistants.
CompactFlash and SmartMedia cards are examples of flash memory storage devices. (a) II only (b) I and II (c) None (d) I only
Correct answer is (b)
20 Of the following, which best describes what happens when a user opens a document for editing?
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尊重他人的劳动成果是一种美德
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(a) The document image is moved to free space on the disk where the image is directly edited. (b) A copy of the document is loaded from the disk into RAM and edited in RAM. (c) The document image is directly edited on the disk where it resides.
(d) A copy of the document is loaded from the disk into cache memory and edited in the cache. Correct answer is (b)
Multiple-Choice Quiz 7
1. Which of the following is a reason for degradation in computer system performance due to insufficient cache memory?
(a) It takes a longer time to transfer data from the peripheral devices to the chipset. (b) The processor performance will be less than optimal.
(c) It takes a longer time to transfer data from the hard disk to the cache. (d) Instructions have to be loaded frequently from the hard disk. Correct answer is (b)
2. How are data files compressed into shorter sequences of bytes?
(a) By replacing long sequences of identical data with a special coded format (b) By using higher density disk and RAM components
(c) By using higher speed disks, enabling them to be read back faster (d) By writing in the empty spaces between the sectors on a disk drive Correct answer is (a)
3. Which of the following areas of computer technology does Moore's Law impact in some way? Cost of software Processor speeds
Amount of RAM on a chip (a) I, II, and III (b) I and II only (c) I and III only (d) II and III only
Correct answer is (d)
4. If Moore's Law holds true for disk capacities and if the largest disk currently available is 10GB, what is predicted to be the largest disk capacity six years from now, assuming an 18 month cycle to double capacity? (a) 60 GB (b) 640 GB (c) 100 GB (d) 160 GB
Correct answer is (d)
5. What is the general term used to describe the process of recoding data so that it requires fewer bytes of storage space? (a) Encoding (b) Rationing
(c) Data compression
(d) Run length encoding Correct answer is (c)
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尊重他人的劳动成果是一种美德
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6. Which of the following create performance bottlenecks?
Disk access speed is too slow when compared to CPU processing speed. RAM access speed is too slow when compared to CPU processing speed.
Bus transfers to network cards and video cards are too slow when compared to CPU processing speed.
(a) I and III only (b) I and II only (c) I, II, and III
(d) II and III only Correct answer is (c)
7. Consumer demand for more powerful desktop computers continues to grow at a rapid pace, keeping up with the technological advances predicted by Moore's Law.
If a user purchased a state-of-the-art computer 18 months ago, what should such a user expect to pay for a computer today that is twice as powerful as the computer that is now 18 months old?
(a) Approximately the same amount of money paid for the old computer (b) Approximately twice the amount of money paid for the old computer (c) Approximately half the amount of money paid for the old computer
(d) Approximately three times the amount of money paid for the old computer Correct answer is (a)
8. According to Parkinson's Law of Data, additional memory (a) encourages the use of memory intensive techniques (b) requires the CPU to run programs faster (c) always requires additional RAM (d) results in decreased use of memory Correct answer is (a)
9. Which of the following kinds of files can be significantly compressed, while having little impact on the processing speed of other running applications when the compressed file data is accessed?
(a) Frequently used applications (b) Small binary files
(c) Infrequently used large text files (d) Operating system files Correct answer is (c)
10. In the future, continued technological advances that follow Moore's Law are (a) limited by the ability to shrink circuit paths to sizes smaller than an atom
(b) limited by the purity of silicon, iron, and copper used to make high quality semiconductors (c) limited by the availability of silicon from which to make high quality semiconductors (d) not limited and will continue on throughout the 21st century Correct answer is (a)
11. Which of the following is a reason for degradation in computer system performance due to insufficient RAM?
(a) It takes a longer time to transfer data from the hard disk to the cache. (b) Instructions have to be loaded frequently from the hard disk.
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尊重他人的劳动成果是一种美德