Deck 11: Networked Applications

Question 1

If a hacker takes over an application,he or she gets all the privileges of the application on the computer.

Answer 1

True

Question 2

Antivirus software checks e-mail attachments for ________.

A)viruses
B)Trojan horses
C)both A and B
D)neither A nor B

Answer 2

C

Question 3

Which of the following allows you to read your e-mail easily on an Internet cafe's computer?

A)POP
B)Web-enabled e-mail
C)both A and B
D)neither A nor B

Answer 3

B

Question 4

A media gateway connects a client computer or VoIP phone to the VoIP network.

Question 5

Mail servers communicate with each other by using ________.

A)POP
B)HTTP
C)RFC 2822
D)SMTP

Question 6

A networked application is an application that requires a network to operate.

Question 7

E-mail bodies that have non-English text use ________.

A)RFC 822 and RFC 2822
B)HTTP
C)POP
D)UNICODE

Question 8

VoIP uses ________ switching.

A)circuit
B)packet
C)either A or B

Question 9

Telephones that can plug directly into a VoIP network are called PCs with multimedia hardware and added software.

Question 10

Which of the following offers more reliable antivirus protection?

A)antivirus software on user PCs
B)antivirus software on the mail server
C)Both A and B are about equally reliable.

Question 11

If you are using a Web-enabled e-mail system ________.

A)you have to install a special Web-enabled e-mail client to access your e-mail
B)you access and send mail by using a Web browser
C)you are more likely to be susceptible to viruses being introduced on your computer
D)you are unable to send/receive e-mail messages containing information other than letters or numbers

Question 12

Users are primarily concerned about the ________ layer.

A)application
B)transport
C)internet
D)physical

Question 13

If companies place antivirus software on all of their client PCs,this will stop almost all virus infections.

Question 14

The way in which application layer functions are spread among computers to deliver service to users is called ________.

A)distributed processing
B)peer-to-peer computing
C)client/server computing
D)an application architecture

Question 15

RFC 822 and RFC 2822 standards govern ________.

A)plain text content of e-mail messages
B)HTTP page contents
C)HTML commands and content
D)plain text, graphic, and video content of e-mail messages

Question 16

A media gateway translates ________ transmissions.

A)signaling
B)transport
C)both A and B
D)neither A nor B

Question 17

According to the principle of defense in depth,antivirus filtering should be done in at least ________ location(s).

A)1
B)2
C)3
D)4

Question 18

The advance that made the client/server application architecture possible was ________.

A)the Internet
B)client processing power
C)application sophistication
D)input/output methods

Question 19

A traditional e-mail user sending messages to his or her mail server would most likely use ________.

A)the IMAP standard
B)the POP standard
C)either the IMAP or POP standard
D)the SMTP standard

Question 20

Having all privileges on a computer is known as having ________.

A)all access
B)total control
C)root privileges
D)all of the above

Question 21

The code "200" may be found in HTTP ________ messages.

A)request
B)response
C)both A and B
D)neither A nor B

Question 22

Variability in time delays between successive packets in a transport stream is called ________.

A)a timing error
B)a warble
C)a SIP violation
D)jitter

Question 23

Which of the following is used to retrieve Web pages?

A)HTTP
B)HTML
C)RTP
D)SQL

Question 24

Speech codecs vary with respect to ________.

A)compression
B)voice quality
C)both A and B
D)neither A nor B

Question 25

SIP is a ________ protocol for VoIP.

A)signaling
B)transport
C)both A and B
D)neither A nor B

Question 26

SaaS software vendors may make an application available by ________.

A)hosting it on their own webservers
B)allowing the application to be downloaded to the consumer device
C)both A and B
D)neither A nor B

Question 27

For the transport layer,VoIP uses ________ for transport transmission.

A)TCP
B)UDP
C)codec standards
D)IP

Question 28

In HTTP,keywords usually are followed by a ________.

A)colon (:)
B)carriage return/line feed
C)blank line
D)space

Question 29

How many HTTP request-response cycles are needed to transfer a webpage containing 88 lines of text and three different images?

A)3
B)4
C)88
D)91

Question 30

VoIP users have ________ in their phones or on their computers.

A)media gateways
B)codecs
C)both A and B
D)neither A nor B

Question 31

In HTTP,fields normally are ended by a ________.

A)colon (:)
B)carriage return/line feed
C)blank line
D)space

Question 32

In HTTP response messages,the attached file is preceded by a ________.

A)colon (:)
B)space
C)blank line
D)any of the above

Question 33

Which of the following is used in webpage bodies?

A)HTTP
B)HTML
C)both A and B
D)neither A nor B

Question 34

In cloud ________,the user accesses the software over the Internet,often with a browser.

A)SaaS
B)utility computing

Question 35

________ is a standard to describe a file's format type.

A)RFC 2822
B)SMTP
C)HTML
D)MIME

Question 36

Which header comes SECOND in a VoIP transport packet?

A)RTP
B)UDP
C)TCP
D)Application

Question 37

How many HTTP request-response cycles are needed to transfer a webpage containing three graphics images?

A)1
B)2
C)3
D)none of the above

Question 38

Codec data comes after the ________ header in VoIP transport frames.

A)IP
B)TCP
C)UDP
D)RTP

Question 39

RTP supports ________.

A)faster transmission speed
B)jitter control
C)both A and B
D)neither A nor B

Question 40

Which of the following is likely to dominate in VoIP?

A)SIP
B)H)323

Question 41

Which of the following is not an issue for cloud utility computing?

A)the possibility of losing access
B)the possibility of getting locked into proprietary software
C)very high costs
D)security concerns

Question 42

A service-oriented architecture is an application architecture in which a few large programs interact to provide a unified service.

Question 43

Which of the following is not an issue for cloud utility computing?

A)the possibility of losing access
B)the possibility of getting locked into proprietary software
C)security concerns
D)All of the above are issues for cloud utility computing.

Question 44

SOAs are language-independent.

Question 45

In virtualization,the real computer's capacity is divided among a number of ________.

A)hypervisors
B)virtual machines
C)neither A nor B

Question 46

Which of the following is an attraction of cloud SaaS?

A)potential lowered costs in hardware and personnel
B)mobility
C)collaboration
D)all of the above

Question 47

In SOA,what language can be used to create service objects?

A)Java
B)C++
C)both A and B
D)neither A nor B

Question 48

In ________,a company offloads server processing work to another company at a remote site.

A)utility computing
B)software as a service
C)none of the above

Question 49

In SOA,calls are placed to ________.

A)programs
B)subprograms
C)subroutines
D)service objects

Question 50

When deciding whether to use cloud computing,a company must consider security risk.

Question 51

Which of the following is a factor that has contributed to the popularity of cloud computing?

A)the Internet
B)web services
C)both A and B
D)neither A nor B

Question 52

Which of the following is an attraction of cloud utility computing?

A)flexibility
B)control over operations
C)both A and B
D)neither A nor B

Question 53

Utility computing is a new phenomenon.

Question 54

Utility computing is usually offered as a pay-as-you-go service.

Question 55

If a company runs its own data center,it might face problems with ________.

A)overprovisioning
B)underprovisioning
C)both A and B
D)neither A nor B

Question 56

An organization that provides cloud services is called a cloud ISP.

Question 57

Virtualization has contributed to the popularity of cloud computing.

Question 58

In virtualization,each virtual machine acts like a stand-alone computer to its users.

Question 59

Which of the following is not an issue for cloud Software as a Service?

A)the possibility of losing access
B)the possibility of getting locked into proprietary software
C)security concerns
D)All of the above are issues for cloud Software as a Service.

Question 60

SOAs are attractive because of ________.

A)reuse
B)language independence
C)both A and B
D)neither A nor B

Question 61

By definition,Web services are implemented using SOAP.

Question 62

The main advantage of ________ file sharing is that it brings cost savings by using clients rather than server processing power.

A)BitTorrent
B)client/server
C)both A and B
D)neither A nor B

Question 63

In ________ file retrieval,your computer downloads a file from a server.

A)P2P
B)client/server
C)BitTorrent
D)none of the above

Question 64

Which of the following is a security risk associated with BitTorrent?

A)danger caused by opening TCP ports on the firewall
B)danger that an employee may download an infected file
C)both A and B
D)neither A nor B

Question 65

The purpose of ________ is to help someone to find an appropriate service object.

A)SOAP
B)XML
C)WDSL
D)UDDI

Question 66

In BitTorrent file sharing,you download parts of the file simultaneously from multiple peers.

Question 67

In SOAs,a program written in C++ can communicate with a program written in Java.

Question 68

In BitTorrent,the group of all connected computers that have all or part of the file to be downloaded is called the ________.

A)swarm
B)index
C)tracker
D)none of the above

Question 69

In BitTorrent,a(n)________ is a server that coordinates the file transfer.

A)swarm
B)index
C)tracker
D)none of the above

Question 70

In BitTorrent,a(n)________ website is a site the BitTorrent client program goes to in order to get .torrent files.

A)swarm
B)index
C)tracker
D)none of the above

Question 71

Skype offers ________.

A)free calling among Skype customers
B)free calling to and from Public Switched Telephone Network customers
C)both A and B
D)neither A nor B

Question 72

Which of the following is true?

A)A Web service is one way to implement a SOA.
B)SOAP is one way to implement a Web service.
C)both A and B
D)neither A nor B

Question 73

In SOA,SOAP messages are encoded in ________.

A)HTML
B)XML
C)both A and B
D)neither A nor B

Question 74

Which of the following is considered a bigger problem with traditional client/server based architectures than with peer-to-peer architectures?

A)underutilized processing capacity of client PCs
B)potential for essential data/services to become unavailable as a device is turned off
C)both A and B
D)neither A nor B

Question 75

________ use ________ that provide services to customers using WWW interaction standards.

A)Web services, service objects
B)Service objects, web services

Question 76

The terms SOA and Web services mean the same thing.

Question 77

Which of the following is true?

A)Web service is one way to implement a SOA.
B)SA Web service is one way to implement SOAP.
C)both A and B
D)neither A nor B

Question 78

The purpose of ________ is to allow a calling program to understand how to use a service object.

A)SOAP
B)XML
C)WDSL
D)UDDI

Question 79

Transient client presence tends to be a problem in ________.

A)P2P applications
B)client/server applications
C)both A and B
D)neither A nor B

Question 80

To be considered a peer-to-peer application architecture,there can be no dedicated servers included on the network.