Deck 6: The Cloud

Question 1

A computer network between Seattle and Philadelphia is made possible through a LAN.

Answer 1

False

Question 2

Communication speeds are expressed in bytes, whereas memory sizes are expressed in bits.

Answer 2

False

Question 3

Wired LAN connections use the IEEE 802.3 protocol, whereas wireless LAN connections use the IEEE 802.11 protocol.

Answer 3

True

Question 4

An intranet is a private internet that is used exclusively within an organization.

Question 5

Bluetooth is a common wired protocol designed to transmit data over long distances.

Question 6

Cloud resources are pooled because many different organizations use the cloud to share hardware through virtualization.

Question 7

Wired LAN connections use a protocol standard called Ethernet to communicate.

Question 8

A computer network is a collection of computers that communicate with one another over transmission lines or wirelessly.

Question 9

IEEE LAN protocols always start with the numbers 802.

Question 10

One of the advantages of cloud-based hosting, as long as it is with reputable organizations, is receiving the best-of-breed security.

Question 11

When a person connects to the Internet, he or she is actually connecting to an Internet Service Provider.

Question 12

The World Wide Web sponsors committees that create and publish protocols and other standards.

Question 13

The abbreviations k, M, and G have the same meaning for computer memory as they have for communication speeds.

Question 14

With a WAN, an organization is allowed to place communications lines wherever it wants because all lines reside on its premises.

Question 15

A switch detects the speed that a given device can handle and communicates with it at that speed.

Question 16

The committee that addresses LAN standards is called ICANN.

Question 17

Cloud-based hosting is the ideal choice for organizations that are required by law to have physical control over their data.

Question 18

An Internet is a network of networks that connects LANs, WANs, and other internets.

Question 19

A university would use a WAN to connect its campuses in two cities.

Question 20

The cloud is defined as the elastic leasing of pooled computer resources over the Internet.

Question 21

TCP/IP protocol architecture is a scheme of protocol types arranged in four layers.

Question 22

In three-tier architecture, the server tier consists of computers, phones, and other mobile devices that have browsers that request and process Web pages.

Question 23

A domain name is a worldwide-unique name that is affiliated with a public IP address.

Question 24

https is the secure version of http.

Question 25

Cable modems undergo modulation in such a way that their signals interfere with TV signals.

Question 26

An ISP serves as a user's gateway to the Internet.

Question 27

Both WSDLs and SOAP messages are coded in XML.

Question 28

Digital subscriber lines use their own protocols for data transmission.

Question 29

All the computers on a LAN use many public IP addresses.

Question 30

A URL consists of a protocol followed by a domain name or public IP address.

Question 31

SOAP is a protocol for requesting Web services and for sending responses to Web service requests.

Question 32

The owner of a domain name can change the affiliated IP addresses at its discretion.

Question 33

Because DSL signals interfere with telephone signals, DSL data transmission and telephone conversations cannot occur simultaneously.

Question 34

smtp is the protocol used between browsers and Web servers.

Question 35

Unlike ftp, http does not have a secure version.

Question 36

ftp is the protocol used mainly for email transmissions.

Question 37

A cable line is the second type of LAN connection.

Question 38

A content delivery network (CDN) is a system of both hardware and software that stores user data in many different geographical locations and makes that data available on demand.

Question 39

Web servers run on a server-tier computer and manage traffic by sending and receiving Web pages to and from clients.

Question 40

Assignment of both public and private IP addresses is controlled by ICANN.

Question 41

The most basic cloud offering is platform as a service (PaaS) that is the cloud hosting of a bare server computer or data storage.

Question 42

Which of the following characteristics is a disadvantage of cloud-based hosting?

A) It involves high dependency on vendor.
B) It involves significant requirement of capital.
C) It involves high annual maintenance costs.
D) It involves high ongoing support costs.

Question 43

Remote action systems save time and travel expense and make the skills and abilities of an expert available in places where he or she is not physically located.

Question 44

Which of the following is defined as the elastic leasing of pooled computer resources over the Internet?

A) broadband
B) wiki
C) the cloud
D) Bluetooth

Question 45

Cloud resources are ________ because many different organizations use the same physical hardware.

A) elastic
B) pooled
C) programmatic
D) portable

Question 46

Salesforce.com provides hardware and programs for customer and sales tracking. This is an example of a cloud vendor who provides software as a service.

Question 47

Oracle On demand is an example of infrastructure as a service.

Question 48

Teleaction increases the value of local mediocrity.

Question 49

Identify a characteristic that is a disadvantage of cloud-based hosting?

A) loss of control over data location
B) ongoing support costs
C) increased management requirements
D) significant development effort

Question 50

The term ________ means that the computing resources leased can be increased or decreased dynamically in a short span of time and that organizations pay for just the resources that they use.

A) portable
B) pooled
C) programmatic
D) elastic

Question 51

Telesurgery uses telecommunications to link surgeons to robotic equipment at distant locations.

Question 52

To ensure security, the VPN client software decrypts the original message so that its contents are protected from snooping.

Question 53

Microsoft CRM OnLine can be classified as a PaaS.

Question 54

Which of the following factors makes cloud-based hosting advantageous today?

A) expensive processors
B) expensive data storage
C) advent of virtualization
D) advent of private IP addressing

Question 55

Which of the following is a characteristic of cloud-based hosting?

A) unknown cost structure
B) full control of data location
C) no obsolescence
D) in-depth visibility of security

Question 56

An organization that provides software as a service provides only operating systems and application programs.

Question 57

Which of the following is a characteristic of in-house hosting?

A) in-depth visibility of disaster preparedness
B) small capital requirements
C) industry-wide economies of scale
D) known cost structure

Question 58

Small companies usually lack the technical expertise and management to load operating systems onto servers acquired via the cloud.

Question 59

Identify a characteristic of in-house hosting.

A) speedy development
B) superior adaptability to fluctuating demand
C) control of data location
D) possibly the best disaster preparedness

Question 60

Which of the following characteristics is a disadvantage of in-house hosting?

A) dependency on vendor
B) loss of control over data location
C) cost uncertainties
D) lack of visibility into security details

Question 61

Which of the following features distinguishes a LAN from a WAN?

A) A LAN connects computers in a single location.
B) A WAN has a limit on the number of users.
C) A WAN has low bandwidth.
D) A LAN has stringent hardware requirements.

Question 62

Which of the following statements is True about the IEEE 802.11ac protocol?

A) It is also known as Ethernet.
B) It is used for wired LAN connections.
C) It cannot be processed by access points.
D) It allows speeds of up to 1.3 Gbps.

Question 63

Computers that reside in different geographic locations are connected using a(n) ________.

A) WAN
B) LAN
C) URL
D) XML

Question 64

A ________ is a set of rules that programs on two communicating devices follow.

A) codec
B) cloud
C) packet
D) protocol

Question 65

To enable a seamless flow of data across the networks that comprise an internet, an elaborate scheme called a ________ is used.

A) layered protocol
B) virtual private network
C) three-tier system
D) remote access system

Question 66

Compared to in-house hosting, cloud-based hosting ________.

A) provides better visibility of security and disaster preparedness capabilities
B) minimizes the risk of investing in technology that will soon become obsolete
C) provides greater control over the location of data
D) requires a significant amount of capital

Question 67

Which of the following statements is True about cable lines?

A) They provide high-speed data transmission using telephone cables.
B) They offer consistent performance irrespective of the number of users sending and receiving data.
C) They rely on high-capacity optical fiber cables and use their own protocols for data transmission.
D) They provide faster download speeds than DSL modems.

Question 68

A computer that supports 10/100/1000 Ethernet allows for 10, 100, or 1000 ________ per second.

A) megabytes
B) megabits
C) kilobytes
D) kilobits

Question 69

The ________ protocol standard is also known as Ethernet.

A) Bluetooth
B) IEEE 802.11
C) IEEE 802.3
D) IEEE 802.11ac

Question 70

A computer ________ is a collection of computers that communicate with one another over transmission lines or wirelessly.

A) database
B) application
C) network
D) server

Question 71

________ is a wireless protocol designed for transmitting data over short distances, replacing cables.

A) IPv6
B) PaaS
C) Bluetooth
D) IPv4

Question 72

________ signals do not interfere with TV signals even though they use the same lines.

A) DSL
B) Dial-up
C) Cable
D) ADSL

Question 73

A ________ detects the speed that a given device can handle and communicates with it at that speed.

A) codec
B) modem
C) switch
D) port

Question 74

Which of the following statements is True about IEEE 802.3?

A) It is the protocol for wireless LAN connections.
B) It is the protocol for Bluetooth.
C) It is the protocol for wired LAN connections.
D) It is the universal standard protocol for all WAN connections.

Question 75

For communications equipment, k stands for ________.

A) 1000
B) 1024
C) 100
D) 1042

Question 76

Which of the following statements is True of digital subscriber line signals?

A) Digital subscriber line signals do not interfere with telephone signals.
B) Digital subscriber line signals use the same protocols as cable modems for data transmission.
C) Digital subscriber line signals replace phone signals and are sent to the ISP.
D) Digital subscriber line signal data transmission and telephone conversations cannot occur simultaneously.

Question 77

Which of the following is a benefit of in-house hosting?

A) superior flexibility and adaptability to growing or fluctuating demand
B) lower capital requirements
C) in-depth visibility of security and disaster preparedness
D) fewer training requirements

Question 78

A private internet that is used exclusively within an organization is called a(n) ________.

A) Ethernet
B) intranet
C) cloud
D) server

Question 79

Which of the following is a function of an ISP?

A) It transmits data over short distances, replacing cables.
B) It serves as a user's gateway to the Internet.
C) It describes how messages must be processed for wired transmission.
D) It connects computers within a LAN.

Question 80

In cloud computing, resources are said to be "pooled" because organizations ________.

A) use the public Internet to create the appearance of a private connection
B) use open source standards that enable users to modify a program's source code
C) offer their services to each other free of charge, in a give-and-take arrangement
D) share the same physical hardware through virtualization