Question 1

A cluster is a group of computers that are linked together so they act as a one computer.

Accepted Answer

A) True 
 B)False  True

Question 2

The four general functions of any application program are: data storage,data access logic,application logic and presentation logic.

Accepted Answer

A) True 
 B)False  True

Question 3

For what is HTML used? What are its major parts?Are all required?

Accepted Answer

HTML, which stands for HyperText Markup Language, is used for creating and structuring content on the web. It is the standard markup language for documents designed to be displayed in a web browser. HTML can be assisted by technologies such as Cascading Style Sheets (CSS) and scripting languages like JavaScript.

HTML is used to define the structure and layout of a web page by using a variety of tags and attributes. The content within an HTML document includes text, as well as images, videos, and other multimedia.

The major parts of an HTML document include:

1. **Doctype Declaration**: This is a required preamble that tells the web browser which version of HTML the page is written in. For example, `` is used for HTML5.

2. **HTML Element**: This is the root element that wraps the entire content of the document. It is required for every HTML document.

3. **Head Element**: This contains meta-information about the document, such as its title, links to stylesheets, scripts, and other metadata that is not displayed directly on the web page. The `` element is required in an HTML document.

4. **Title Element**: This defines the title of the document, which is shown in the browser's title bar or tab. It is required to be inside the `` section.

5. **Body Element**: This encompasses all the content that is displayed to the user, such as text, images, links, tables, lists, and more. The `` tag is required.

6. **Heading Elements (h1 to h6)**: These are used to define headings, with `

` being the highest (or most important) level and `

` the least. 7. Paragraph Element (p): This is used to define a block of text. 8. Anchor Element (a): This is used to define hyperlinks that can connect one page to another, or to different sections within the same page. 9. Image Element (img): This is used to embed images in the HTML document. 10. List Elements: There are ordered lists (`
`), unordered lists (`
`), and list items (`
`), which are used to create lists of items. 11. Form Elements: These include `
`, ``, ``, `<button>`, and others, which are used to create interactive forms for user input. 12. Table Elements: These include `<table>`, `<tr>`, `<td>`, `<th>`, and others, which are used to create tables. While some elements are required for the document to be valid and function properly (like `<!DOCTYPE>`, `<html>`, `<head>`, `<title>`, and `<body>`), not all elements are required on every page. The elements you use depend on the content and structure you want to create. However, omitting certain required elements or not structuring the document correctly can lead to unexpected behavior or poor presentation in the web browser.

Question 4

One underlying problem with a host-based network is that:

Accepted Answer

A)  there are economies of scale because all computer resources are centralized 
B)  the server can get overloaded since it must process all messages 
C)  the architecture is relatively simple and works well 
D)  the server is the one point of control which simplifies security 
E)  clients (terminals) do not require sophisticated hardware/software because they do not perform most of the work in this type of architecture 
A)  there are economies of scale because all computer resources are centralized 
B)  the server can get overloaded since it must process all messages 
C)  the architecture is relatively simple and works well 
D)  the server is the one point of control which simplifies security 
E)  clients (terminals) do not require sophisticated hardware/software because they do not perform most of the work in this type of architecture

Question 5

Which of the following is not true about Telnet?

Accepted Answer

A)  Telnet requires an application layer program on the client computer and an application layer program on the server or host computer. 
B)  Telnet poses no security threat. 
C)  Telnet was designed in the early days of the Internet. 
D)  You are using a host-based architecture with Telnet. 
E)  One program that conforms to the Telnet standard is EWAN. 
A)  Telnet requires an application layer program on the client computer and an application layer program on the server or host computer. 
B)  Telnet poses no security threat. 
C)  Telnet was designed in the early days of the Internet. 
D)  You are using a host-based architecture with Telnet. 
E)  One program that conforms to the Telnet standard is EWAN.

Question 6

The Simple Mail Transfer Protocol is the least commonly used e-mail standard.

Accepted Answer

A) True 
 B)False

Question 7

One major drawback to a client-server network lies in the fact that client-server networks enable software and hardware from different vendors to be used together.

Accepted Answer

A) True 
 B)False

Question 8

IMAP (Internet Message Access Protocol):

Accepted Answer

A)  is a set of standards that define how email is to be processed between mail servers 
B)  is exactly the same as SMTP 
C)  copies an e-mail message from the client computer's hard disk, deletes it from the client, and stores it on the mail server 
D)  is exactly the same as POP 
E)  permits an e-mail message to remain stored on the mail server even after they have been read by a client computer 
A)  is a set of standards that define how email is to be processed between mail servers 
B)  is exactly the same as SMTP 
C)  copies an e-mail message from the client computer's hard disk, deletes it from the client, and stores it on the mail server 
D)  is exactly the same as POP 
E)  permits an e-mail message to remain stored on the mail server even after they have been read by a client computer

Question 9

There are required and optional parts of an HTTP response.They are:

Accepted Answer

A)  response status, response header, response body 
B)  response address, response header, response body 
C)  response status, response body 
D)  response address, response header 
E)  response status, response header 
A)  response status, response header, response body 
B)  response address, response header, response body 
C)  response status, response body 
D)  response address, response header 
E)  response status, response header

Question 10

Marc Andreessen led a team that developed the first graphical Web browser,which was called:

Accepted Answer

A)  Internet Explorer 
B)  Mosaic 
C)  Firebird 
D)  Netscape Navigator 
E)  Mozilla 
A)  Internet Explorer 
B)  Mosaic 
C)  Firebird 
D)  Netscape Navigator 
E)  Mozilla

Question 11

An N-tiered architecture:

Accepted Answer

A)  is generally more "scalable" than a three-tiered architecture 
B)  is generally less "scalable" than a three-tiered architecture 
C)  uses only two sets of computers in which the clients are responsible for the application and presentation logic, and the servers are responsible for the data 
D)  uses exactly three sets of computers in which the client is responsible for presentation, one set of servers is responsible for data access logic and data storage, and application logic is spread across two or more different sets of servers 
E)  puts less load on a network than a two-tiered architecture because there tends to be less communication among the servers 
A)  is generally more "scalable" than a three-tiered architecture 
B)  is generally less "scalable" than a three-tiered architecture 
C)  uses only two sets of computers in which the clients are responsible for the application and presentation logic, and the servers are responsible for the data 
D)  uses exactly three sets of computers in which the client is responsible for presentation, one set of servers is responsible for data access logic and data storage, and application logic is spread across two or more different sets of servers 
E)  puts less load on a network than a two-tiered architecture because there tends to be less communication among the servers

Question 12

What are the three major parts of an HTTP request and what information does each part contain? Why does HTTP include a version number as part of the packet?

Accepted Answer

The three major parts of an HTTP request

Question 13

Suppose your organization was contemplating switching from a host-based architecture to client-server.What problems would you foresee?

Accepted Answer

Switching from a host-based architecture

Question 14

Host-based and client-based networks are similar in that the client computer performs most of the work.

Accepted Answer

A) True 
 B)False

Question 15

The earliest data communications networks were client-server networks.

Accepted Answer

A) True 
 B)False

Question 16

With the two-tier client-server architecture,the client is responsible for the ________ logic and the server is responsible for the ________ logic.

Accepted Answer

A)  Application; presentation 
B)  Presentation; data access 
C)  Data access; presentation 
D)  Application; data access 
E)  Presentation; application storage 
A)  Application; presentation 
B)  Presentation; data access 
C)  Data access; presentation 
D)  Application; data access 
E)  Presentation; application storage

Question 17

The application architecture called the distributed computing model uses the "thick" client approach.

Accepted Answer

A) True 
 B)False

Question 18

There are optional and required parts of an HTTP request.They are:

Accepted Answer

A)  request address, request body 
B)  request address, request header, request body 
C)  request line, request header 
D)  request line, request body 
E)  request line, request header, request body 
A)  request address, request body 
B)  request address, request header, request body 
C)  request line, request header 
D)  request line, request body 
E)  request line, request header, request body

Question 19

For what is HTTP used? What are its major parts?Are all required?

Accepted Answer

HTTP, which stands for Hypertext Transfe

Question 20

A ________ is a group of computers linked together so that they act as one computer.

Accepted Answer

A)  workstation 
B)  transaction terminal 
C)  cluster 
D)  network computer 
E)  transaction terminal. 
A)  workstation 
B)  transaction terminal 
C)  cluster 
D)  network computer 
E)  transaction terminal.

A cluster is a group of computers that are linked together so they act as a one computer.

The four general functions of any application program are: data storage,data access logic,application logic and presentation logic.

For what is HTML used? What are its major parts?Are all required?

` being the highest (or most important) level and `

One underlying problem with a host-based network is that:

Which of the following is not true about Telnet?

The Simple Mail Transfer Protocol is the least commonly used e-mail standard.

One major drawback to a client-server network lies in the fact that client-server networks enable software and hardware from different vendors to be used together.

IMAP (Internet Message Access Protocol):

There are required and optional parts of an HTTP response.They are:

Marc Andreessen led a team that developed the first graphical Web browser,which was called:

An N-tiered architecture:

What are the three major parts of an HTTP request and what information does each part contain? Why does HTTP include a version number as part of the packet?

Suppose your organization was contemplating switching from a host-based architecture to client-server.What problems would you foresee?

Host-based and client-based networks are similar in that the client computer performs most of the work.

The earliest data communications networks were client-server networks.

With the two-tier client-server architecture,the client is responsible for the logic and the server is responsible for the logic.

The application architecture called the distributed computing model uses the "thick" client approach.

There are optional and required parts of an HTTP request.They are:

For what is HTTP used? What are its major parts?Are all required?

A ________ is a group of computers linked together so that they act as one computer.

Introduction to Data Communications

Physical Layer

Data Link Layer

Network and Transport Layers

Wired and Wireless LANs

Backbone Networks

Wide Area Networks

The Internet

Network Security

Network Design

Network Management

Filters

Exam 2: Application Layer

A cluster is a group of computers that are linked together so they act as a one computer.

The four general functions of any application program are: data storage,data access logic,application logic and presentation logic.

For what is HTML used? What are its major parts?Are all required?

` being the highest (or most important) level and `

One underlying problem with a host-based network is that:

Which of the following is not true about Telnet?

The Simple Mail Transfer Protocol is the least commonly used e-mail standard.

One major drawback to a client-server network lies in the fact that client-server networks enable software and hardware from different vendors to be used together.

IMAP (Internet Message Access Protocol):

There are required and optional parts of an HTTP response.They are:

Marc Andreessen led a team that developed the first graphical Web browser,which was called:

An N-tiered architecture:

What are the three major parts of an HTTP request and what information does each part contain? Why does HTTP include a version number as part of the packet?

Suppose your organization was contemplating switching from a host-based architecture to client-server.What problems would you foresee?

Host-based and client-based networks are similar in that the client computer performs most of the work.

The earliest data communications networks were client-server networks.

With the two-tier client-server architecture,the client is responsible for the ________ logic and the server is responsible for the ________ logic.

The application architecture called the distributed computing model uses the "thick" client approach.

There are optional and required parts of an HTTP request.They are:

For what is HTTP used? What are its major parts?Are all required?

A ________ is a group of computers linked together so that they act as one computer.

Introduction to Data Communications

Physical Layer

Data Link Layer

Network and Transport Layers

Wired and Wireless LANs

Backbone Networks

Wide Area Networks

The Internet

Network Security

Network Design

Network Management

Filters

With the two-tier client-server architecture,the client is responsible for the logic and the server is responsible for the logic.