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Consider a web server with one CPU that serves web requests; each web request requires 3 (time) units of CPU processing and 9 (time) units to read data from disk.
The server is designed with a fixed number of threads k, and each web request is handled entirely by one of those threads. Given the processing requirements and architecture mentioned above, what value should be chosen for k? Now suppose we had 4 CPUS (cores); how would your answer change?
Finally, suppose the web request required 9 (time) units of CPU and 3 of disk access. How would your answers to the 2 previous questions change?
Assume we want to use Kerberos for securing electronic mail. The obvious way of accomplishing this is for Alice, when sending a message to Bob,
If entire disk was full of data stored consecutively, how much time would it take to read whole disk if read/write head is already positioned on first sector of first track of first cylinder of the disk?
ABC Corporation is a small but growing manufacturing corporation with revenues of approximately $25 million. Until now, the corporation has had a single headquarters and production facility in a Midwestern city,
What does fragmented mean in reference to hard drives, and what, if anything, should be done to prevent it. Describe the general path data takes in an application from user input to the computer hardware.
Determine the characteristics of ATM networks, as well as their advantages and limitations. Discuss the ideas of connection oriented and connectionless protocols.
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.
Explain an IP address. Explain Class A, B, and C networks. Are a MAC address and an IP address the similar thing?
Determine the main steps that should be included in a comprehensive network installation plan. In your opinion, what are the 2most important steps in ensuring success of the network?
Discuss briefly how IT certification works. What business arenas are IT certifications needed, security, or what technical problem is IT certification designed to solve?
Think about a frame being sent using synchronous transmission. Suppose that samples are taken at the middle of the bit period and that the clocks are synchronized at the starting of each frame.
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?
The following four requests could come in to the operating system as it is running on computer system: Clock in computer has just "ticked", and we require to update seconds counter.
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