Page 275 - Using MIS

Using Your Knowledge 243

Key termS and ConCeptS

10/100/1000 Ethernet 215 IEEE 802.11 protocol 215 Service-oriented architecture
Bluetooth 215 Infrastructure as a service (IaaS) 227 (SOA) 222
Cable line 217 Internet 214 Simple Mail Transfer Protocol
Carrier 217 Internet service provider (ISP) 216 (smtp) 225
Cloud 211 Intranet 214 Small office/home office
Commerce server 220 IP address 218 (SOHO) 214
Content delivery network (CDN) 228 IPv4 219 Software as a service (SaaS) 227
Database tier 220 IPv6 219 TCP/IP protocol architecture 224
Digital subscriber line (DSL) 216 Local area network (LAN) 214 Telediagnosis 236
Domain name 219 Net neutrality 218 Telelaw enforcement 237
Elastic 207 Network 211 Telesurgery 236
Encapsulated 223 Over the Internet 209 Text mining 241
Ethernet 214 Packet 217 The Internet 214
File Transfer Protocol (ftp) 225 Packet sniffers 240 Three-tier architecture 220
Geotagging 235 Peering 217 Tunnel 232
Hop 217 Platform as a service (PaaS) 227 URL (Uniform Resource Locator) 219
https 225 Pooled 208 User tier 220
Hypertext Transfer Protocol Private cloud 232 Virtual private cloud (VPC) 233
(http) 224 Private IP address 218 Virtual private network (VPN) 231
ICANN (Internet Corporation Protocol 214 WAN wireless 217
for Assigned Names and Public IP address 218 Web page 220
Numbers) 218 Remote action system 236 Web servers 220
IEEE 802.3 protocol 214 Server tier 220 Wide area network (WAN) 214

MyMISLab ™

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uSinG your KnowledGe

6-1. Define cloud and explain the three key terms in your Alternative A: Each employee has his or her own de-
definition. Using Figure 6-3 as a guide, compare and con- vice and connects individually to the Internet.
trast cloud-based and in-house hosting. In your opin- Alternative B: The employees’ computers are con-
ion, explain the three most important factors that make nected using a LAN, and the network uses a single
cloud-based hosting preferable to in-house hosting.
device to connect to the Internet.
6-2. Apple invested more than $1 billion in the North a. Sketch the equipment and lines required for each
Carolina data center shown in Figure 6-2. For Apple to alternative.
spend such a sum, it must perceive the iCloud as be- b. Explain the actions you need to take to create each
ing a key component of its future. Using the principles alternative.
listed in Figure 3-12 (page 95), explain all the ways c. Which of these two alternatives would you
that you believe the iCloud will give Apple a competi- recommend?
tive advantage over other mobile device vendors.
6-4. Go to http://aws.amazon.com and search for AWS
6-3. Suppose you manage a group of seven employees in database offerings. Explain the differences among
a small business. Each of your employees wants to be Simple Database Service, Amazon Relational Store,
connected to the Internet. Consider two alternatives: and MongoDB. Which of these three would you