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business communication essentials
Business Data Communications And Networking 10th Edition Jerry FitzGerald, Alan Dennis - Solutions
Explain how a Trojan horse works.
What is a security hole and how do you fix it?
What is a NAT firewall and how does it work?
How do the different types of firewalls work?
Describe how an ANI modem works.
How do you secure dial-in access?
What is a sniffer?
What is eavesdropping in a computer security sense?
What is physical security and why is it important?
How do you secure the network perimeter?
What are three major aspects of intrusion prevention(not counting the security policy)?
There are many components in a typical security policy. Describe three important components.
People who attempt intrusion can be classified into four different categories. Describe them.
What is online backup?
What is a disaster recovery firm? When and why would you establish a contract with them?
How does a denial-of-service attack differ from a distributed denial-of-service attack?
Explain how a denial-of-service attack works.
How can one reduce the impact of a disaster?
What is a computer virus? What is a worm?
What is the purpose of a disaster recovery plan? What are five major elements of a typical disaster recovery plan?
Explain the primary principle of device failure protection.
What are the most common security threats?What are the most critical? Why?
What are some of the criteria that can be used to rank security risks?
Name at least six assets that should have controls in a data communication network.
Briefly outline the steps required to complete a risk assessment.
What factors have brought increased emphasis on network security?
Many experts predicted that small, local ISPs would disappear as regional and national ISPs began offering local access.This hasn’t happened. Why?
Some experts believe that in five years, the dial-up modem will have disappeared.What do you think?
Today, there is no clear winner in the competition for broadband Internet access. What technology or technologies do you think will dominate in two years’ time? Why?
There are many different organizations working on their vision of a high-speed Internet.Is this good or bad? Would we be better off just having one organization working on this and coordinating the work?
What is a gigapop?
What is Internet2?
What are two principal American organizations working on the future of the Internet?
How is the IETF related to the IRTF?
What are the principal organizations responsible for Internet governance, and what do they do?
Explain how Ethernet to the home works.
What is PON, and how does it work?
What are some future technologies that might change how we access the Internet?
Explain how WAP works.
Compare and contrast mobile wireless and fixed wireless.
Explain how one type of fixed wireless called wireless DSL works.
Which is better, cable modem or DSL? Explain.
What is an OE converter? A CMTS?
Explain how a cable modem works.
Compare and contrast ADSL and VDSL.
Explain how VDSL works.
Explain how ADSL works.
How does a DSL modem differ from a DSLAM?
Explain how DSL works.
Compare and contrast cable modem and DSL.
What type of circuits are commonly used to build the Internet today? What type of circuits are commonly used to build Internet2?
Explain one reason why you might experience long response times in getting a Web page from a server in your own city.
What is a POP?
Compare and contrast an NAP and a MAE.
Explain how the Internet is a network of networks.
What is the basic structure of the Internet?
It is said that packet-switched services and dedicated-circuit services are somewhat similar from the perspective of the network designer.Why?
Suppose you joined a company that had a WAN composed of SONET, T carrier services, ATM, and frame relay, each selected to match a specific network need for a certain set of circuits. Would you say this was a well-designed network? Explain.
Are there any MAN/WAN technologies that you would avoid if you were building a network today? Explain.
Are Ethernet services a major change in the future of networking or a technology blip?
Describe five important factors in selecting WAN services.
How can you improve WAN performance?
Compare the three types of VPN.
Explain how VPN services work.
How do VPN services differ from common carrier services?
Explain the differences between CIR and MAR.
Which is likely to be the longer-term winner, X.25, frame relay, ATM, or Ethernet services?
Compare and contrast X.25, frame relay, ATM, and Ethernet services.
How does an SVC differ from a PVC?
How do datagram services differ from virtual circuit services?
How does a reliable packet service differ from an unreliable packet service?
What does a packet contain?
Where does packetizing take place?
How is a virtual circuit distinguished from other circuits?
How do packet-switching services differ from other WAN services?
Describe SONET. How does it differ from SDH?
Distinguish among T1, T2, T3, and T4 circuits.
What are the most commonly used T carrier services?What data rates do they provide?
Compare and contrast ring architecture, star architecture, and mesh architecture.
Is a WAN that uses dedicated circuits easier or harder to design than one that uses dialed circuits? Explain.
Compare and contrast circuit-switched services, dedicated-circuit services, and packet-switched services.
How does broadband ISDN differ from narrowband ISDN?
What is a 2B+D?
Compare and contrast BRI, PRI, and B-ISDN.
How does ISDN work?
What is POTS?
Explain how a cloud architecture works.
Who regulates common carriers and how is it done?
What are common carriers, local exchange carriers, and interexchange carriers?
Some experts are predicting that Ethernet will move into the WAN. What do you think?
What are the preferred architectures used in the technology layers in backbone design?
Why are broadcast messages important?
How can you improve the performance of a BN?
What are the advantages and disadvantages of VLANs?
What is IEEE 802.1q?
Explain how multiswitch VLANs work.
Explain how single-switch VLANs work.
What is a module and why are modules important?
Compare and contrast rack-based and chassis-based switched backbones.
What are the key advantages and disadvantages of routed and switched backbones?
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