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Question: 1. What are the seven layers of the OSI model?
2. Which OSI layer is responsible for adding a header that includes routing information?
3. Which OSI layer is considered the media access control layer?
4. Which OSI layer combines messages or segments into packets?
5. Which OSI layer is responsible for the mechanical connection to the network?
Explain the effect of data rates on each part of the network. Describe strategies to ensure the availability of network access in switched and routed networks
The TCP or UDP port that a VoIP protocol uses must be kept open in a firewall so that the traffic can pass through. In this same file, what, TCP or UDP port is used in Frame 1
Consider a packet-by-packet fair queueing system with three logical buffers and with service rate of one unit/second. Show the sequence of transmissions for this system.
Keep track of number of products keeping in machine and amount of money customer has inserted. Two processes are utilized, one which accepts money and keeps track of amount paid.
What do you consider the most important element of networking?
Are LANs a stable technology or are they changing just as quickly as other forms of communication technologies? Should software licenses be dropped completely?
As security manager at XYZ Corporation, you are responsible for managing intrusion detection environment. If you were given the ability to build the environment from scratch, would you use network based IDS, host based IDS, or a combination?
tools to enhance password protectionfrom atm to accessing ones email accounts everything today needs creation and
How would you use TI, Frame Relay, ATM or MPLS? How would you use DSL or Cable modems? How would you use VPN? What type of attacks would you expect and how would you protect from those attacks?
1. an emergency room plans to add capacity in two phases. after the first phase the average capacity utilization is
Your browser asks your Domain Name System (DNS) name server, M, to find an Internet address for this domain name. Under what conditions is each of the following statements true of the name resolution process?
compare video voice and data formats. identify at least three bandwidth techniques and how you would manage them with
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