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Question: Assume you have been hired through your local library to help them setup a LAN to connect their three library sites. The director of the library, Robert Jienwerski, has a good understanding of the jargon used by network installers and administrators. Robert is very excited about the project. During your first meeting with him, he wants you to come up with a feasibility study for the new network before committing a budget to the project. He gives you the following list of questions that he wants answered:
What expansion of network services and benefits might they achieve?What LAN protocol and related transmission speed are most appropriate for the local libraries: Ethernet, Fast Ethernet or GB Ethernet?What topology for the LANs and the WAN? What are their merits?Explain the elements of the backbone.What transmission media is required for the LAN? UTP or fiber? If UTP, what grade? What transmission media and devices are required to create a WAN?
Analysis and implementation of algorithms for memory allocation in operating system, Explain First- t and best- t methods are used in memory allocation in operating systems.
Explain a recent high profile computer security issue that you have heard of. Based on basic network security principles, how might the issue have been avoided?
Discuss some of the many considerations in choosing the correct information system to use for trading futures and stocks?
Slim reader-writer locks favor neither readers nor writers, nor are waiting threads ordered in FIFO queue. Describe benefits of providing such a synchronization tool.
The final security measure my company implements well is monitoring internet usage through limiting the access for most workers to search websites that are not related to the company.
Assume two hosts A and B are connected via router R. A-R link has infinite bandwidth; A-R link has infinite bandwidth; draw curves for throughput, delay, and power, each as function of load.
What is the difference between a safe state and an unsafe state in a deadlock-avoidance system?
White Hat Cracking engage security testing by arrangement. Grey Hat Cracking seeks to identify insecure systems and inform administrators or users of vulnerabilities.
Discuss at least ten Vulnerabilities in VoIP. Briefly explain each of the listed vulnerability, along with a possible recommendation for a countermeasure.
when a process requests for I/O operations, it will suspend and another process will need to be selected for execution. What is the CPU utilization for a round-robin scheduler.
Assuming fetches to main memory are started in parallel with look-ups in cache, calculate the effective (average) access time of this system.
Determine the minimum size and Maximum size of an Ethernet frame, in bytes?
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