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Chapter 2: Application Layer
Test Bank
True-False Questions
The following are possible True/False questions for tests. The statement is given and the answer is
provided. The level of difficulty (easy, medium, hard), the reference section relevant to the topic, and
learning objective are also furnished.
1. An application architecture is the way in which the functions of the application layer are
performed solely by the clients in the network.
Answer: False
Difficulty: Medium
Reference: Application Architectures
L.O. : Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
2. The four general functions of any application program are: data storage, data access logic,
application logic and presentation logic.
Answer: True
Difficulty: Easy
Reference: Application Architectures
L.O. : Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
3. A server farm is a group of computers that are linked together so they act as a one computer.
Answer: True
Difficulty: Easy
Reference: Application Architectures
L.O. : Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
4. Host-based and client-based networks are similar in that the client computer performs most of the
work.
Answer: False
Difficulty: Easy
Reference: Application Architectures
L.O. : Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
5. The earliest data communications networks were client-server networks.
Answer: False
Difficulty: Easy
Reference: Application Architectures
L.O. : Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
6. As the demand for more and more network applications grow; host-based computing becomes the
best solution.
Answer: False
Difficulty: Medium
Reference: Application Architectures
L.O. : Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
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.Your typical web browsing
scenario where a person using a web browser accesses a web page from a server on the Internet is a
good example of a client-server application architecture.
Answer: True
Difficulty: Medium
Reference: Application Architectures
L.O. : Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
8. In a client-server network, the presentation logic is the responsibility of the client computer.
Answer: True
Difficulty: Easy
Reference: Application Architectures
L.O. : Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
9. The two functions of middleware are to: 1) provide a standard way of communicating that can
translate between software from different vendors, and 2) manage the message transfer between
clients and servers so that clients do not need to „know‟ which server contains the application‟s data.
Answer: True
Difficulty: Medium
Reference: Application Architectures
L.O. : Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
10. Middleware is the software that sits between the application software on the client and the
application software on the server.
Answer: True
Difficulty: Easy
Reference: Application Architectures
L.O. : Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
11. In the three-tier architecture, the software on the client computer is responsible for the
presentation logic, an application server is responsible for the application logic and a separate
database server is responsible for the data access logic and data storage.
Answer: True
Difficulty: Medium
Reference: Application Architectures
L.O. : Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
12. A “thin client” approach places most of the application logic on the client.
Answer: False
Difficulty: Easy
Reference: Application Architectures
L.O. : Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
13. The application architecture called the distributed computing model uses the “thick” client
approach.
Answer: False
Difficulty: Medium
Reference: Application Architectures
L.O. : Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
14. Scalability refers to the ability to increase or decrease the capacity of the computing
infrastructure in response to changing capacity needs.
Answer: True
Difficulty: Easy
Reference: Application Architectures
L.O. : Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
15. To use the Web, each client computer requires a data link layer software package called a Web
browser.
Answer: False
Difficulty: Easy
Reference: World Wide Web
L.O.: Understand how the Web works
16. The standard protocol for communication between a Web browser and a Web server is the web
protocol.
Answer: False
Difficulty: Medium
Reference: World Wide Web
L.O.: Understand how the Web works
17. The World Wide Web was conceived at University of Utah as part of the development of the
Internet.
Answer: False
Difficulty: Easy
Reference: World Wide Web
L.O.: Understand how the Web works
18. A request header for an HTTP request starts with a command, such as GET, and ends with the
HTTP version number that the browser understands.
Answer: False
Difficulty: Easy
Reference: World Wide Web
L.O.: Understand how the Web works
19. All three parts (request line, request header, request body) of an HTTP request from a web
browser to a web server are required when a request is made.
Answer: False
Difficulty: Medium
Reference: Electronic Mail
L.O.: Understand how email works
20. The Simple Mail Transfer Protocol is the least commonly used e-mail standard.
Answer: False
Difficulty: Easy
Reference: Electronic Mail
L.O.: Understand how email works
21. The two-tier e-mail architecture does not require any application software on the client computer.
Answer: False
Difficulty: Easy
Reference: Electronic Mail
L.O.: Understand how email works
22. Using the POP standard for client to server e-mail communication, the e-mail messages remain
on the server computer.
Answer: False
Difficulty: Easy
Reference: Electronic Mail
L.O.: Understand how email works
23. Web-based e-mail like Hotmail is an example of three-tier client-server architecture that provides
access to e-mail messages.
Answer: True
Difficulty: Medium
Reference: Electronic Mail
L.O.: Understand how email works
24. The fundamental problem in client-based networks is that all data on the server must travel to the
client for processing
Answer: True
Difficulty: Medium
Reference: Application Architectures
L.O. : Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
25. Cloud-hosted virtual desktops are now available through a service called DaaS allowing users to
access the same client computer (virtual desktop) from any computer and any location.
Answer: True
Difficulty: Medium
Reference: Other Applications
L.O. : Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
MULTIPLE CHOICE
The following are possible multiple-choice questions for tests. The question is posed and the answer
is provided under the choices. The level of difficulty (easy, medium, hard), the reference section
relevant to the topic, and learning objective are also furnished.
1. A(n) __________ is the way in which the functions of the application layer software are spread
among the clients and servers in the network.
a. anonymous FTP
b. data access logic
c. fat client
d. application architecture
e. response status architecture
Answer: D
Difficulty: Easy
Reference: Application Architectures
L.O.: Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
2. A ________ is a very large general-purpose computer that is capable of performing very many
functions as if these are done simultaneously, and storing extremely large amounts of data.
a. workstation
b. transaction terminal
c. cluster
d. mainframe
e. personal computer
Answer: D
Difficulty: Easy
Reference: Application Architectures
L.O.: Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
3. A ________ is a group of computers linked together so that they act as one computer.
a. workstation
b. transaction terminal
c. server farm
d. network computer
e. transaction terminal
Answer: C
Difficulty: Easy
Reference: Application Architectures
L.O.: Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
4. With the two-tier client-server architecture, the server is responsible for the ________ logic.
a. application
b. presentation
c. data access
d. session
e. physical
Answer: C
Difficulty: Medium
Reference: Application Architectures
L.O.: Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
5. Which of the following is not a general function by any application program?
a. data storage
b. data access logic
c. application logic
d. presentation logic
e. application access storage
Answer: E
Difficulty: Medium
Reference: Application Architectures
L.O.: Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
6. _________ is an application program function that deals with storing and retrieving data.
a. data storage
b. data access logic
c. application logic
d. presentation logic
e. application access storage
Answer: A
Difficulty: Easy
Reference: Application Architectures
L.O.: Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
7. An application program function is __________, or the processing required to access data.
a. data storage
b. data access logic
c. application logic
d. presentation logic
e. application access storage
Answer: B
Difficulty: Easy
Reference: Application Architectures
L.O.: Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
8. ______________, or the algorithms or business logic programmed into the application, can be
simple or complex depending on the application.
a. data storage
b. data access logic
c. application logic
d. presentation logic
e. application access storage
Answer: C
Difficulty: Easy
Reference: Application Architectures
L.O.: Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
9. ________ is the presentation of information to the user and the acceptance of the user‟s
commands.
a. data storage
b. data access logic
c. application logic
d. presentation logic
e. application access storage
Answer: D
Difficulty: Easy
Reference: Application Architectures
L.O.: Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
10. One underlying problem with a host-based network is that:
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
Answer: B
Difficulty: Medium
Reference: Application Architectures
L.O.: Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
11. With a client-based network, one fundamental problem is that:
a. the clients each must store all the data
b. the server does not have any data storage capability
c. the host or server must perform presentation logic, application logic, and data access logic at the
same time
d. all data on the server must travel to the client for processing
e. the clients must perform the data storage logic
Answer: D
Difficulty: Easy
Reference: Application Architectures
L.O.: Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
12. With the two-tier client-server architecture, the client is responsible for the ________ logic.
a. session
b. presentation
c. data access
d. data storage
e. networking
Answer: B
Difficulty: Medium
Reference: Application Architectures
L.O.: Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
13. Client-server architectures:
a. cannot connect computers that use different hardware
b. are one of the least used network architectures today
c. can use middleware to provide a standard way of communicating between software from more
than one vendor
d. assign the responsibility for the presentation logic to the server
e. were the earliest type of network architectures
Answer: C
Difficulty: Medium
Reference: Application Architectures
L.O.: Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
14. How are the application architecture functions split up in a client-server network?
a. the presentation logic and data storage are on the client, while the data access logic is on the server
b. the data storage, data access, and presentation logic are on the client
c. the presentation logic is on the client, while the data storage and data access logic are on the server
d. the data storage and data access logic are on the client, while the presentation logic are on the
server
e. the presentation logic and data access logic are on the client, and the data storage is on the server
Answer: C
Difficulty: Medium
Reference: Application Architectures
L.O.: Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
15. In a client-server network, _________ gets software from different vendors to work together.
a. a front-end processor
b. serverware
c. middleware
d. centerware
e. programmer
Answer: C
Difficulty: Easy
Reference: Application Architectures
L.O.: Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
16. ____________ is not an important middleware standard.
a. CORBA (Common Object Request Broker Architecture
b. Distributed Computed Environment (DCE)
c. Asynchronous Transfer Mode (ATM)
d. Open Database Connectivity (ODBC)
e. none of the above is an appropriate answer
Answer: C
Difficulty: Medium
Reference: Application Architectures
L.O.: Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
17. A(n) _________-tiered architecture uses only two sets of computers: one set of clients and one
set of servers.
a. one
b. two
c. three
d. five
e. n
Answer: B
Difficulty: Easy
Reference: Application Architectures
L.O.: Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
18. In the three tier architecture, the software on the client computer is responsible for the
____________.
a. presentation logic
b. application logic
c. data access logic
d. data storage
e. application storage
Answer: A
Difficulty: Easy
Reference: Application Architectures
L.O.: Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
19. An N-tiered architecture:
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
Answer: A
Difficulty: Easy
Reference: Application Architectures
L.O.: Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
20. One disadvantage of the ____________ architecture is that places a greater load on the network.
a. two-tier
b. three tier
c. one-tier
d. n-tier
e. layered
Answer: D
Difficulty: Easy
Reference: Application Architectures
L.O.: Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
21. A “thin client” architecture approach:
a. always is a two-tier network architecture
b. always is an n-tiered architecture
c. places all or almost all of the application logic on the client
d. places all or almost all of the application logic on the server
e. refers to the size of the cable connecting the clients to the network
Answer: D
Difficulty: Easy
Reference: Application Architectures
L.O.: Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
22. A “thick client” architecture approach:
a. always is a two-tier network architecture
b. always is an n-tiered architecture
c. places all or almost all of the application logic on the client
d. places all or almost all of the application logic on the server
e. refers to the size of the cable connecting the clients to the network
Answer: C
Difficulty: Easy
Reference: Application Architectures
L.O.: Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
23. With the “thin client” architecture, when an application changes, only the _________ with the
application logic needs to be updated.
a. client
b. server
c. middleware
d. hardware
e. software
Answer: B
Difficulty: Medium
Reference: Application Architectures
L.O.: Understand host-based, client-based, client-server, cloud-based, and peer-to-peer application
architectures
24. The idea for a special hypertext network, called the World Wide Web, was conceived of by:
a. Microsoft in 1994 as part of the Windows 95 project
b. Tim Berners-Lee at the European Laboratory for Particle Physics (CERN) in 1989
c. Vinton Cerf, for the U.S. Department of Defense in 1969 as a network of four computers called
ARPANET
d. Howard Flieshman of IBM in 1982 as part of the development of the IBM PC
e. the University of Minnesota as an extension of Gopher
Answer: B
Difficulty: Easy
Reference: World Wide Web
L.O.: Understand how the Web works
25. Marc Andreessen led a team that developed the first graphical Web browser, which was called:
a. Internet Explorer
b. Mosaic
c. Firebird
d. Netscape Navigator
e. Mozilla
Answer: B
Difficulty: Easy
Reference: World Wide Web
L.O.: Understand how the Web works
26. To interact with the World Wide Web, a client computer needs an application layer software
package called a:
a. Web browser
b. Web server
c. Telnet package
d. Uniform Resource Locator package
e. Router package
Answer: A
Difficulty: Easy
Reference: World Wide Web
L.O.: Understand how the Web works
27. Each server on a network that needs to act as a web server needs an application layer software
package called a (n) ______________.
a. browser
b. application web
c. web server
d. operating system
e. none of the above
Answer: C
Difficulty: Easy
Reference: World Wide Web
L.O.: Understand how the Web works
28. To get a page from the Web, a user must type in a URL, which stands for:
a. Unknown Resource Locator
b. Unknown Router Location
c. Uniform Router Location
d. Uniform Resource Locator
e. Uniform Resource Library
Answer: D
Difficulty: Easy
Reference: World Wide Web
L.O.: Understand how the Web works
29. The protocol that makes it possible for a Macintosh web browser to be able to retrieve a Web
page from a Microsoft Web server is called the _____________________.
a. Hypertext Transfer Protocol
b. File Transfer Protocol
c. Simple Mail Transfer Protocol
d. Internet Message Access Protocol
e. Hyperlink Transfer Protocol.
Answer: A
Difficulty: Medium
Reference: World Wide Web
L.O.: Understand how the Web works
30. There are optional and required parts of an HTTP request. They are:
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
Answer: E
Difficulty: Medium
Reference: World Wide Web
L.O.: Understand how the Web works
31. There are required and optional parts of an HTTP response. They are:
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
Answer: A
Difficulty: Medium
Reference: World Wide Web
L.O.: Understand how the Web works
32. A response status code of 404 means:
a. the requested page was not found
b. the server is currently unavailable
c. the sever is currently busy
d. your browser is incompatible with the Web server software.
e. your browser needs to be updated to the latest version.
Answer: A
