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1 how can you improve the performance of a bn2 why are broadcast messages important3 what are the preferred
you have been hired by a small company to install a backbone to connect four 100base-t ethernet lans each using one
1 what are common carriers local exchange carriers and interexchange carriers2 who regulates common carriers and how is
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1 compare and contrast ring architecture star architecture and mesh architecture2 what are the most commonly used t
1 how do packet-switching services differ from other wan services2 how is a virtual circuit distinguished from other
1 how do datagram services differ from virtual circuit services2 how does an svc differ from a pvc3 compare and
1 explain the differences between cir and mar2 how do vpn services differ from common carrier services3 explain how vpn
1 describe five important factors in selecting wan services2 are ethernet services a major change in the future of
1 suppose you joined a company that had a wan composed of sonet t carrier services atm and frame relay each selected to
a suppose the example used a layer-2 vpn protocol called l2tp draw the messages and the packets they would containb
1 what is the basic structure of the internet2 explain how the internet is a network of networks3 compare and contrast
1 explain one reason why you might experience long response times in getting a web page from a server in your own city2
1 how does a dsl modem differ from a dslam2 explain how adsl works3 explain how a cable modem works4 what is an oe
1 explain how ftth works2 what are some future technologies that might change how we access the internet3 explain how
1 how is the ietf related to the irtf2 what are two principal american organizations working on the future of the
1 describe the current network structure of the abilene network the vbns network and the canet network2 provide the
1 what factors have brought increased emphasis on network security2 briefly outline the steps required to complete a
1 what are the most common security threats what are the most critical why2 explain the primary principle of device
1 what is a computer virus what is a worm2 how can one reduce the impact of a disaster3 explain how a denial-of-service
1 how do you secure the network perimeter what is physical security and why is it important2 what is eavesdropping in
1 what is a firewall2 how do the different types of firewalls work3 what is ip spoofing4 what is a nat firewall and how
1 explain how a trojan horse works2 compare and contrast symmetric and asymmetric encryption3 describe how symmetric
1 what is key management2 how does des differ from 3des from rc4 from aes3 compare and contrast des and public key
1 what is a certificate authority how does pgp differ from ssl how does ssl differ from ipsec2 compare and contrast