only for the grAde

,i ) 1000 Ethernet 27i - :t ,oth 219 ,-.,ine 219 -:.ir 223 :ti-serverarchitecture 2O3 .r 203 ..J computing architecture 20+ :tlterce server 225 :::uter terminal 203 :int delivery network (CDN) 212

. .,base tier 225 -.ial subscriber line (DSL) 219 ::ain name 221 ::rain Name System (DNS) 227

r::iiC 2O5 :, -'apsulated 227 : ::rnet 275 : : Transfer Protocol (ftp) 229 :! 223 - rs 229 :' :ertext Transfer Protocol

http) 229 -- r,\\ (Internet Corporation :or Assigned Names and \umbers) 221

r:E 802.3 protocol 275

IEEE 802.11 protocol 218 Infrastructure as a service (IaaS) 21O Tnternel 2I5 Internet exchange points (IXp) 223 Internet service provider (ISp) 2lg Intranet 215 IP address 221 IPv4 221 IPv6 221 Local area network (LAN) 214 Mainframearchitecture 2O3 Mainframes 2O3 Net neutrality 224 Network 274 Overthe lnternel 2O5 Packet 221 Peering 223 Personal area network (pAN) 214 Platform as a service (paaS) 271 Pooled 205 Private cloud 23i Private IP address 223 Protocol 215 Public IP address 227 Remote action system 239 Routers 223

Using Your Knowledge

Scalable 2O4 Server tier 225 Service-oriented architecture

(soA) 226 Simple Mail Transfer protocol

(smtp) 229 Small office/home office (SOHO) 215 Software as a service (SaaS) 271 TCPiIP protocol architecture 229 Telediagnosis 239 Telelawenforcement 24O Telesurgery 239 The Internet 215 Thin client 2O3 Three-tierarchitecture 225 Transmission Control protocol

(TCP) 222 Tunnel 233 URL (Uniform Resource Locator) 222 User tier 225 Virtual private cloud (VpC) 234 Virtual private network (VpN) 233 WANwireless 22O Web page 225 Web servers 225 Wide area network (WAN) 214

'M lSi--x *" -o complete the problems with the ,MlSt.::r:, go to EOC Discussion euestions in the Mylab.

6- 1. Define cloud and, explain the three key terms in your defini_

hosting using the comparison presented in e6_1 as a guide. In your opinion, explain the three most important Iactors that make cloud-based hosting preferable to in-house hosting.

6-2. Apple invested more than $18 in the North Carolina data

it must perceive the iCloud as being a key component of its future. Using the principles discussed in e3_7 of Chapter 3, explain all the ways you believe the iCloud will give Apple a competitive advantage over other mobile device vendors.

Suppose you manage a group of seven employees in a small business. Each of your employees wants to be con_ nected to the Internet. Consider two alternatives:

Alternative A: Each employee has his or her own device and connects individually to the Internet.

Alternative B: The employees, computers are con_ nected using a LAN, and the network uses a single device to connect to the Internet. a. Sketch the equipment and lines required for each

alternative. b. Explain the actions you need to take to create each

alternative. c. Which of these two alternatives would you recommend?

6-3. MIS: rl:.

244 CHAPTER 6 The Cloud

6-4. Go to http:l/aws.amazon.conT. and search for AWS database offerings. Explain the differences among Amazon's RDS, DynamoDB, ElastiCache, and Redshift services. Which of these would you recommend for storing Falcon Security's

data? (By the way, whenever you query the Internet for any

AWS product, be sure to include the keyl,l,ord Atr4lS in your

search. Otherwise, your search will result in Amazon's lists of books about the item you're searching for.)

6-5. Suppose Toshio wants Falcon Security to set up a prira:; internet, and he justifies this request on the basis of bett-:

security. Explain why that is not a good decision and rehu:

his claim about security by suggesting that Falcon use ;

VPC. justify your suggestion.

6-6. In five sentences or fewer, explain how the cloud will afl'e.: job prospects for you between now and 2027 .

IJsitrg the collaborqtion IS you built in Chapter 2 (page 7 5) , collabo- rate with a group of students to ansurer the follot,ing cluestions.

The cloud is causing monumental changes in the informa- tion systems services industry. In every city, you vr,,ill still see the trucks of local independent software vendors (ISVs) driv- ing to their clients to set up and maintain local area networks, servers, and software. You'll knovv the trucks by the Microsoft, Oracle, and Cisco logos on their sides. For years, those small, Iocal companies have survived, some very profitably, on their ability to set up and maintain LANs, connect user computers to the Internet, set up servers, sell Microsoft Exchange licenses, and

install other software on both servers and user computers.

Once everything is installed, these companies continued to

earn revenue by providing maintenance for problems that inevi-

tably developed and support for new versions of software, con- necting new user computers, and so forth. Their customers vary,

but generally are smaller companies of, say, 3 to 50 employees- companies that are large enough to need email, Internet con- nections, and possibly some entry-level software applications such as QuickBooks.

6-7. Using the knowledge of this chapter and the intuition of the members of your team, summarize threats that cloud services present to such ISVs.

6-8. Suppose your team owns and manages one of these ISVs. You learn that more and more of your clients are choosing SaaS cloud services like Google for email,

rather than setting up local email servers. a. What, if anything, can you do to prevent the

encroachment of SaaS on your business?

b. Given your answer to question 5-8a, identify three alternative ways you can respond.

c. Which of the three responses identifled in your answer to question 6-8b would you choose? Justify your choice.

6-9. Even if SaaS eliminates the need for email and oth.': local servers, there will still remainviable services th. you can provide. Name and describe those services

6-10. Suppose instead of attempting to adapt an existri:; ISV to the threat of cloud services, you and your teal:.'

mates decide to set up an entirely new business, c:: that will succeed in the presence of SaaS and oth:: cloud services. Looking at businesses in and arou:: your campus, identify and describe the IS needs th.'', businesses will have in the cloud services world.

6- 1 1. Describe the IS services that your new business co, : provide for the business needs you identified in r-c ..: answer to question 6-10.

6-12. Given your answers to questions 6-7 through 6--'- would you rather be an existing ISV attempting : adapt to this new world or an entirely new compa::'

Compare and contrast the advantages and disadra.:-

tages of each alternative.

6-13. Changing technology has, for centuries, eliminai.": the need for certain products and services and .:,' ated the need for new products and services. Whai ,, new, today, honever, is the rapid pace at which n: technology is created and adapted. Using cloud s.:' vices as an example, create a statement of the postu:,

that business professionals should take with rega:: to technology in order to thrive in this fast-chang.r; environment. Notice the verb in this assignmen: thrive and not just survive.

Flt:1

Con Syst