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You are Information Security Officer at the medium-sized company (1,500 employees). CIO has asked you to describe why you suggest it is so significant to secure your Windows and Unix/Linux servers from known shortcomings/vulnerabilities, describe to your CIO what you can do to ensure network infrastructure is more secured.
How long does it take to send a file of 640,000 bits from host A to host B over a circuit-switched network? All links are 1.536 Mbps Each link uses FDM.
Find out whether it's configured to transfer data at 10 Mbps rather than 100 Mbps, as it should be. How could you find this information and change it, if necessary?
Give comprehensive plan along with network diagrams which will portray your plan. Your plan must include equipment and configuration information.
Conduct Internet search to locate case study which illustrates how VoIP was beneficial to the organization. Why did organization need a VoIP solution?
Packets based on packet header. Describe the rationale for having AH tunnel between gateways and using ESP in transport mode between two hosts.
Determine the mean time to spend frame of 1000 bits to another station, measured from beginning of transmission to end of reception? Suppose propagation speed of 100 m/μs.
In the meantime, CEO of the first company transmits e-mail to CEO of second company in order to provide a couple suggestions related to the joint venture. Explain whether this scenario follow OSI model? Describe it in detail.
Deduce the expression for link utilization U of a data link which uses sliding-window flow control and returns ACK for every OTHER frame received.
If 30% of instructions need one memory access and another 5% need two memory accesses per instruction, determine the performance of upgraded processor with compatible instruction set.
How many IP addresses would they have per subnet?
Write down the program which reads the employee's number from keyboard, number of hours worked and the hourly rate of pay.
If the poll bit is on in the sixth frame, what will be the N(R) count back from the secondary after the last frame? Assume error-free operation.
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