Exam 1 Multiple-Choice

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Askarov

Given Name:

Askhat

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aaskarov

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[e-mail]

Status:

Enrolled

Assessment Name:

Exam 1 Multiple-Choice

Instance:

Section:

SSD2-17099045_Computer Science and Software Engineering - 5B070400 - CSSE 104 K

During:

Fall 2011

Section Status:

Active

For course:

Introduction to Computer Systems

(SSD2)

Corresponding to:

SSD2

At:

International University of Information Technology (IITU)

Your performance was as follows:

You took 20 minutes on this assessment from Fri Oct 08 2010 05:17:34 GMT+0700 (Северная Центр. Азия (лето)) to Fri Oct 08 2010 05:36:42 GMT+0700 (Северная Центр. Азия (лето)).

Total score: 88.00

1.

A computer file is a named collection of data that exists on which of the following? I. Optical disk (CD or DVD) II. Floppy disk III. Hard disk

(a) III only (b) I only (c) II and III only (d) I, II, and III

Correct answer is

(d)

Your score on this question is:

4.00

Feedback:

See page 11 in the textbook.

2.

Of the following, which best describes the difference between bits and bytes?

(a) A bit is the smallest unit of information in a computer. A byte is a collection of bits. (b) A byte represents the values 0 and 1, while a bit represents a range of values from 0 to 255. (c) There is no difference between bits and bytes. The terms are used interchangeably. (d) A byte is the smallest unit of information in a computer. A bit is a collection of bytes.

Correct answer is

(a)

Your score on this question is:

4.00

Feedback:

See section 1.3 of the course notes.

3.

How many bits are required to store any given number in the range 0 to 255?

(a) 32 (b) 4 (c) 8 (d) 16

Correct answer is

(c)

Your score on this question is:

4.00

Feedback:

See section 1.3 of the course notes.

4.

What is the binary equivalent of the decimal number 123?

(a) 1111011 (b) 1111101 (c) 1101110 (d) 1111111

Correct answer is

(a)

Your score on this question is:

4.00

Feedback:

See section 1.3 of the course notes.

5.

The list of instructions that a CPU is able to execute is known as its

(a) operands (b) op codes (c) glossary (d) instruction set

Correct answer is

(d)

Your score on this question is:

4.00

Feedback:

See page 67 in the textbook.

6.

Which of the following is (are) true of ROM? I. ROM is volatile. II. The instructions needed to boot a computer are typically stored in ROM.

(a) I only (b) None (c) II only (d) I and II

Correct answer is

(c)

Your score on this question is:

0.00

Feedback:

See section 2.1.2, subsection "ROM," in the course notes.

7.

Which of the following manufacturers provides the Pentium family of processors for desktop computers?

(a) AMD (b) Cyrix (c) IBM (d) Intel

Correct answer is

(d)

Your score on this question is:

4.00

Feedback:

See section 2.1 of the course notes.

8.

Which of the following types of memory typically holds computer configuration settings and is powered by a small battery?

(a) ROM (b) Flash (c) Cache (d) CMOS

Correct answer is

(d)

Your score on this question is:

4.00

Feedback:

See section 2.1.2, subsection "CMOS Memory," in the course notes.

9.

A parallel port can be used to connect a computer to a

(a) printer (b) mouse (c) monitor (d) keyboard

Correct answer is

(a)

Your score on this question is:

4.00

Feedback:

See page 336 in the textbook.

10.

A computer bus that transfers data twice per cycle is said to be double

(a) channeled (b) wide (c) timed (d) pumped

Correct answer is

(d)

Your score on this question is:

4.00

Feedback:

See section 2.2.2 in the course notes.

11.

Ethernet cards are used to provide a computer a connection to which of the following?

(a) Another computer via the telephone lines (b) High speed input/output devices (c) Large capacity storage devices (d) Local area networks

Correct answer is

(d)

Your score on this question is:

4.00

Feedback:

See section 2.2.1 of the course notes.

12.

Of the following, which best describes what happens when a user opens a document for editing?

(a) The document image is moved to free space on the disk where the image is directly edited. (b) The document image is directly edited on the disk where it resides. (c) A copy of the document is loaded from the disk into RAM and edited in RAM. (d) A copy of the document is loaded from the disk into cache memory and edited in the cache.

Correct answer is

(c)

Your score on this question is:

4.00

Feedback:

See section 2.3 of the course notes.

13.

Which of the following is (are) true regarding flash memory storage devices? I. Flash memory storage devices are generally used in small devices like digital cameras and personal digital assistants. II. CompactFlash and SmartMedia cards are examples of flash memory storage devices.

(a) II only (b) I only (c) I and II (d) None

Correct answer is

(c)

Your score on this question is:

4.00

Feedback:

See section 2.3.2, subsection "Solid State," in the course notes.

14.

Using a single EIDE interface, a total of _____ devices can be accommodated.

(a) eight (b) four (c) two (d) seven

Correct answer is

(b)

Your score on this question is:

4.00

Feedback:

See section 2.3.1, subsection "EIDE Master/Slave," in the course notes.

15.

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) 100 GB (b) 60 GB (c) 640 GB (d) 160 GB

Correct answer is

(d)

Your score on this question is:

4.00

Feedback:

See section 2.5 of the course notes.

16.

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) Operating system files (c) Small binary files (d) Infrequently used large text files

Correct answer is

(d)

Your score on this question is:

4.00

Feedback:

See section 2.5 of the course notes.

17.

Which of the following is a reason for degradation in computer system performance due to insufficient RAM?

(a) The processor performance will be less than optimal. (b) Instructions have to be loaded frequently from the hard disk. (c) It takes a longer time to transfer data from the hard disk to the cache. (d) It takes a longer time to transfer data from the peripheral devices to the chipset.

Correct answer is

(b)

Your score on this question is:

0.00

Feedback:

See section 2.5.2, subsection "Typical Bottlenecks," in the course notes.

18.

In a typical computer, when saving data to the hard disk, the chipset sends the data to the disk controller via the

(a) PCI bus (b) serial ports (c) parallel ports (d) AGP bus

Correct answer is

(a)

Your score on this question is:

4.00

Feedback:

See section 2.2.1 in the course notes.

19.

Which of the following statements is (are) true? I. CD-ROM drives use laser technology. II. CD-ROM drives typically cannot be used to write data onto disks.

(a) None (b) I and II (c) I only (d) II only

Correct answer is

(b)

Your score on this question is:

4.00

Feedback:

See Chapter 1, page 10, in the course textbook.

20.

Which of the following is (are) true regarding data transfer rates of storage devices? I. Sequential-access devices have faster transfer rates than random-access devices. II. A device with 50 ms access time is faster than a device with 10 ms access time.

(a) I only (b) I and II (c) II only (d) None

Correct answer is

(d)

Your score on this question is:

0.00

Feedback:

See Chapter 2, page 79, in the course textbook.

21.

In a computer, most processing takes place in the

(a) CPU (b) LAN (c) RAM (d) ROM

Correct answer is

(a)

Your score on this question is:

4.00

Feedback:

See Chapter 1, page 4, in the course textbook.

22.

Which of the following statements are true about deleted files? I. Data from deleted files remains on the disk until a new file is stored there. II. The operating system changes the status of the deleted file's clusters to "empty." III. Files in the Recycle Bin do not take up disk space.

(a) II and III only (b) I and III only (c) I, II, and III (d) I and II only

Correct answer is

(d)

Your score on this question is:

4.00

Feedback:

See Chapter 4, pages 182–183, in the course textbook.

23.

Digital cameras and scanners are connected to the computer system via _____ ports.

(a) PS-2 (b) serial (c) USB (d) parallel

Correct answer is

(c)

Your score on this question is:

4.00

Feedback:

See section 2.2 in the course notes.

24.

How many bytes are in 16 bits?

(a) Four (b) Eight (c) One (d) Two

Correct answer is

(d)

Your score on this question is:

4.00

Feedback:

See Chapter 2, page 61, in the course textbook.

25.

In RAM, microscopic-size _____ hold the bits that represent data.

(a) inductors (b) capacitors (c) cache (d) buses

Correct answer is

(b)

Your score on this question is:

4.00

Feedback:

See Chapter 2, page 71, in the course textbook.

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Total score: 88.00

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