Deck 3: Networks and the Cloud

Question 1

A personal area network (PAN)connects devices around a single person.

Answer 1

True

Question 2

Ethernet or the IEEE 802.3 protocol is used for wired LAN connections.This protocol standard,specifies hardware characteristics,such as which wire carries which signals.

Answer 2

True

Question 3

Up to 500 user sites can share a cable line,and performance varies depending on how many
other users are sending and receiving data.

Answer 3

True

Question 4

Bluetooth is a technology that allows devices to connect wirelessly to a LAN.

Question 5

FTP,or File Transfer Protocol,is used for email transmissions.

Question 6

Internet service providers (ISP)collect money from their customers and pay access fees
and other charges on your behalf.

Question 7

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

Question 8

Protocols are used to provide seamless flow of data.

Question 9

The three wireless network options are: Bluetooth,cellular and DSL.

Question 10

A cellular network,also called a mobile network or wireless WAN (WWAN).

Question 11

The three common alternatives for connecting to the Internet are WAN,Cable line,and DSL.

Question 12

The distinguishing characteristic of a LAN is a single location.

Question 13

Wide area networks (WANs)connect computers at different geographic locations.

Question 14

Wide area networks are used to connect computers that reside in a single geographic location.

Question 15

While protocols are rules for devices to follow,they don't specify any particular language.

Question 16

A digital subscriber line (DSL)operates on the same lines as voice telephones,but it operates so that its signals do not interfere with voice telephone service.

Question 17

Encapsulation involves breaking up an image,which is too big to travel in one piece,into parts called packets.

Question 18

Whenever you see http in your browser's address bar,you have a secure transmission and you can safely send sensitive data like credit card numbers.

Question 19

When you use a browser like Edge,Safari,or Chrome to upload your image to Snapchat,you
are using a program that implements the http protocol.

Question 20

To connect to the Internet,every device needs an IP address.

Question 21

Your browser sends requests and receives responses for service encoded in a predefined
http request format.

Question 22

A web page is a document that is coded in one of the standard page markup languages.

Question 23

According to economies of scale,the average cost of production decreases as the size of the operation increases.

Question 24

Simple Mail Transfer Protocol (SMTP)is the transmission protocol used primarily to move files over the Internet.

Question 25

The user tier consists of computers,smartphones,and other devices that have browsers that request and process.

Question 26

Cascading Style Sheets (CSS)define the fonts and layout of all elements on web pages and are an example of service-oriented architecture (SOA).

Question 27

Web servers are software programs that run on a database tier computer.

Question 28

Cloud resources are pooled,but only one organization can use the physical hardware at a time.

Question 29

Outsourcing is the process of hiring another organization to perform a service.

Question 30

Work is distributed among the computers in a web farm to minimize customer delays.

Question 31

Hypertext Markup Language (html)is the most common language for defining the structure and layout of Web pages.

Question 32

Almost all social media apps and e-commerce sites use the three-tier architecture.

Question 33

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

Question 34

The commonality of Internet protocols and SOA enables cloud-hosting vendors to provide processing capabilities in flexible yet standardized ways.

Question 35

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

Question 36

The term elastic,which was first used this way by Amazon,means that the amount of resources leased can be increased or decreased dynamically and programmatically,in a short span of time.

Question 37

Three-tier architecture,which is an arrangement of user computers and servers into three categories,or tiers.

Question 38

AT&T is an example of a Tier 1 network provider.

Question 39

A login server is an app program that runs on a server-tier computer.

Question 40

Control of data is the primary advantage of cloud hosting.

Question 41

___________ is a wireless communication method that is used for transmitting data over short distances,such as in wireless keyboards.

A) Bluetooth
B) WiFi
C) Cellular data
D) WWAN

Question 42

A/an _____________ operates on the same lines as voice telephones,but it operates so that its signals do not interfere with voice telephone service.

A) cable line
B) cellular data
C) digital subscriber line (DSL)
D) WAN

Question 43

________________is the protocol used between browsers and Web servers.

A) TCP/IP Protocol architecture
B) Smtp, or Simple Mail Transfer Protocol
C) IP (Internet Protocol
D) Hypertext Transport Protocol (http)

Question 44

Which of the following is not a protocol type:

A) Hypertext Transport
B) SMTP, or Simple Mail Transfer
C) XML
D) IP

Question 45

___________ a worldwide-unique name that is affiliated with a particular public IP address.

A) IP address
B) domain name
C) IPv6
D) IPv4

Question 46

Which of these is not an example of a network:

A) personal area network (PAN)
B) intranet.
C) local area network (LAN)
D) Wide area networks (WANs)

Question 47

________is the most common language for defining the layout and structure of web pages.

A) xml
B) CSS
C) html
D) SOA

Question 48

Which of the following is not a function of an ISP (Internet Service Provider)?

A) a legitimate Internet address
B) pay access fees and other charges on your behalf
C) serves as a gate-way to the Internet
D) transmits data over short distances

Question 49

Which of the following is an application layer protocol?

A) VPN
B) TCP/IP Protocol architecture
C) WNIC
D) IEEE

Question 50

With a ______,an organization can place communication lines wherever it wants because all lines reside on its premises.

A) WAN
B) PAN
C) network
D) LAN

Question 51

A private internet used exclusively within an organization is sometimes called a/an _______.

A) internet
B) intranet
C) LAN (local area network)
D) PAN (personal area network)

Question 52

Computers in a small hospital are most likely connected to each other using ________.

A) WAN
B) VPN
C) LAN
D) Bluetooth

Question 53

A special-purpose computer that receives and transmits wired traffic on the LAN is a/an:

A) SOHO LAN
B) internet
C) switch
D) cellular network

Question 54

All of the following are examples of Tier 1 providers except for:

A) Sprint
B) Century
C) Verizon
D) Netflix

Question 55

Application programs are provided by vendors under platform as a service (PaaS).

Question 56

If a mobile user moves out of an original cell,the user is automatically switched to an adjoining cell.This is known as a/an:_________.

A) handover
B) switch
C) different frequency
D) mobile network

Question 57

Platform as a service (PaaS)is where vendors provide hosted computers,an operating system,and possibly a DBMS.

Question 58

Service-oriented architecture (SOA)provides a way for apps on a network to talk to each other using all these ways,except:

A) standard protocols to publish a menu of services that the application provides
B) the structure of the data that it expects to receive
C) providing metadata about the page
D) the structure of the data that it will produce

Question 59

An html ________is a notation used to define a data element for display or other purposes.

A) angle bracket
B) tag
C) hyperlink
D) attribute

Question 60

The ___________protocol is used for wired LAN connections.

A) IEEE 802.3
B) IEEE 802.11
C) IEEE 802.11ac
D) 104.193.184.125

Question 61

XML is the most common markup language for defining the structure and layout of Web pages.

Question 62

What are the four basic types of networks? Provide an example of each.

Question 63

Use the example of Snapchat to describe how protocols work on the Internet.Be sure to include the two techniques that can be used in this process.

Question 64

An address on the Internet is called a(n)________.

A) VPN
B) TCP
C) IP Address
D) FTP

Question 65

________agreements that specify how the data will move among providers.

A) Peering
B) Tier 1
C) Internet
D) Carrier

Question 66

Which of the following is a characteristic of cloud hosting?

A) Even the most reputable organizations do not offer security for cloud hosting.
B) Organizations that hire cloud services run the risk of investing in technology that may become obsolete.
C) Cloud-hosting offers a high degree of transparency on data backup and security.
D) Cloud-hosting offers best-of-breed security and disaster recovery.

Question 67

Which of the following statements is true about cloud computing?

A) It is yet to be adopted on a large scale as it is expensive.
B) It enables many different organizations to use the same physical hardware
C) It is the leasing out of a fixed amount of server time and resources.
D) It has a negative impact on cloud vendors as they do not benefit from economies of scale.

Question 68

Explain the services that an ISP provides and list the three common ways to connect to the Internet.

Question 69

What is Hypertext Markup Language (html)? How are Cascading Style Sheets (CSS used in html?

Question 70

Why have cellular networks become popular?

Question 71

Which of the following statements is true about domain names?

A) It is a worldwide-unique name that is associated with a particular Internet address.
B) A nation's government is the only body allowed to register domain names on Internet directories.
C) An Internet address can be associated with only one domain name.
D) It is usually written before a protocol in a URL.

Question 72

Explain the physical layout of a cellular network and how it sends/receives data to its users.

Question 73

___________are software programs that run on a server-tier computer and that manage
Http traffic by sending and receiving Web pages to and from clients.

A) DBMS
B) Web farms
C) Web pages
D) Web servers

Question 74

What are protocols? Provide a few examples of protocols.

Question 75

Database management system (DBMS)processes requests to:

A) retrieve and store data
B) process application programs
C) request and process Web pages
D) manage http traffic

Question 76

What is an IP address? Explain the difference between public and private.Describe both IP address formats.

Question 77

Explain HTTP and HTTPS in general terms.

Question 78

Which of the following has not contributed to cloud-based hosting being advantageous today.

A) data communication is so cheap
B) SOA and protocol adoption have made the cloud even more economical
C) data storage is nearly free
D) being subject to changes in the vendor's management, policy, and prices

Question 79

Which of the following statements is true about the cloud?

A) Cloud vendors dynamically allocate physical servers as customer needs vary.
B) The amount of resources that is leased out to organizations is decided by their lease contracts.
C) The amount of resources leased can be increased or decreased dynamically
D) Every organization that uses cloud services is allotted only one virtual machine.

Question 80

Which of the following is not a tier in three-tier architecture?

A) user
B) server
C) web
D) database