Certification Exam 100

62.

In a relational database, a row of a table is called a(n)

 (a) index  (b) multiple  (c) tuple  (d) attribute

Correct answer is

(c)

Your score on this question is:

1.00

Feedback:

See Chapter 10, page 500, in the course textbook.

63.

In a software engineering project, the people who focus on the software components of the system to be constructed are called the software

 (a) managers  (b) engineers  (c) coders  (d) analysts

Correct answer is

(b)

Your score on this question is:

1.00

Feedback:

See Chapter 11, page 548, in the course textbook.    

64.

A good problem statement for a computing project specifies which of the following?

1. All assumptions that define the scope of the problem

2. The information that is known about the problem

3. Criteria for determining when the problem has been solved

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

Correct answer is

(a)

Your score on this question is:

1.00

Feedback:

See Chapter 11, page 549, in the course textbook.

65.

A series of steps performed manually that mimic the steps the computer would perform in executing an algorithm, using realistic data, is called a(n) _____ of the algorithm.

 (a) codification  (b) walkthrough  (c) assessment  (d) objectification

Correct answer is

(b)

Your score on this question is:

1.00

Feedback:

See Chapter 11, page 556, in the course textbook.

66.

In a software engineering project, the people who plan the entire system to be constructed are called the system

 (a) engineers  (b) managers  (c) programmers  (d) analysts

Correct answer is

(d)

Your score on this question is:

1.00

Feedback:

See Chapter 11, page 548, in the course textbook.

67.

Some search engines use _____ instead of the word AND to indicate that a search term must appear on a Web page for the page to be included in the search results.

 (a) %  (b) +  (c) $  (d) *

Correct answer is

(b)

Your score on this question is:

1.00

Feedback:

See Chapter 1, page 32, in the course textbook.

68.

Most Web pages contain _____ to related documents and media files.

 (a) links  (b) passages  (c) keys  (d) icons

Correct answer is

(a)

Your score on this question is:

1.00

Feedback:

See Chapter 1, page 26, in the course textbook.

69.

Consider the following URL.

http://www.carnegietech.org/about/index.html

In the URL, "about" is the

 (a) filename  (b) Web server name  (c) protocol standard  (d) folder name

Correct answer is

(d)

Your score on this question is:

1.00

Feedback:

See Chapter 1, page 27, in the course textbook.

70.

Consider the following URL.

http://www.carnegietech.org

In the URL, "http" is the

 (a) protocol standard  (b) folder name  (c) Web server name  (d) filename

Correct answer is

(a)

Your score on this question is:

1.00

Feedback:

See Chapter 1, page 27, in the course textbook.

71.

Which of the following is (are) true regarding protocols used over the Internet?

1. The Post Office Protocol transfers mail from an e-mail server to a client inbox.

2. The Internet Mail Access Protocol transfers e-mail messages from client computers to an e-mail server.

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

Correct answer is

(a)

Your score on this question is:

1.00

Feedback:

See Chapter 5, page 234, in the course textbook.

72.

A multi-player network game where each player's computer communicates directly with all of the other players' computers is an example of a _____ network.

 (a) client-server  (b) broadband  (c) client  (d) peer-to-peer

Correct answer is

(d)

Your score on this question is:

1.00

Feedback:

See Section 5.3.2, subsection "Peer-to-Peer Connectivity," in the course notes.

73.

Which of the following statements about thick and thin clients is (are) true?

1. A thick client does less work than a thin client does.

2. A Web browser can act as either a thick or a thin client.

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

Correct answer is

(b)

Your score on this question is:

1.00

Feedback:

See Section 5.3.1, subsection "Client-Server Framework," in the course notes.

74.

Which of the following statements about client-server systems is (are) true?

1. Both the client and the server can be software programs.

2. The client runs on the user's computer and interacts with both the user and the server.

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

Correct answer is

(d)

Your score on this question is:

1.00

Feedback:

See Section 5.3.1, subsection "Client-Server Framework," in the course notes.

75.

What is the maximum number of units of information that can be conveyed using 10 bits?

 (a) 20  (b) 10  (c) 1024  (d) 100

Correct answer is

(c)

Your score on this question is:

1.00

Feedback:

See Chapter 5, page 219, in the course textbook.

76.

Which of the following is (are) true regarding analog signals?

1. Analog signals typically represent an unlimited range of values.

2. Analog signals typically have a smooth and curved waveform.

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

Correct answer is

(b)

Your score on this question is:

1.00

Feedback:

See Chapter 5, page 220, in the course textbook.

77.

Which of the following is (are) true regarding fiber-optic cables?

1. Fiber-optic cables can be used to transmit electric signals.

2. Fiber-optic cable is a bundle of extremely thin tubes of glass called optical fibers.

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

Correct answer is

(c)

Your score on this question is:

1.00

Feedback:

See Chapter 5, page 221, in the course textbook.

78.

Which of the following is (are) true regarding network devices?

1. A hub is a device that connects several nodes of a local area network.

2. A router is a device that is connected to more than one network and makes decisions regarding the best route for data.

3. A repeater is a device that amplifies and regenerates signals so that they can retain the necessary strength to reach their destinations.

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

Correct answer is

(b)

Your score on this question is:

1.00

Feedback:

See Chapter 5, page 223, in the course textbook.

79.

A device to connect two or more networks is known as a(n)

 (a) domain  (b) NIC  (c) DNS server  (d) router

Correct answer is

(d)

Your score on this question is:

1.00

Feedback:

See Section 5.5.1, subsection "Routers," in the course notes.

80.

How many bytes long is an IP address?

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

Correct answer is

(c)

Your score on this question is:

1.00

Feedback:

See Section 5.5.1, subsection "Internet Protocol," in the course notes.

81.

Which of the following means of connecting to the Internet uses (use) standard copper telephone lines?

1. 56 Kbps modems

2. Cable modems

3. xDSL

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

Correct answer is

(c)

Your score on this question is:

1.00

Feedback:

See Section 5.5.3, subsection "Connectivity," in the course notes.