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Given a cache access time of 20ns, a main memory access time of 1000ns, and a cache hit ratio of 90 percent. Assuming fetches to main memory are started in parallel with look-ups in cache, calculate in ns the effective (average) access time of this system. (There is no virtual memory on this system - no page table, no TLB)
EAT= ?
Assume you wish to test a motherboard used in an installation before you proceed too far into the installation. From the devices listed below, choose the minimum devices
In different communications models, communication may take place using either "message passing" or "shared memory". Distinguish between "message passing" and "shared memory", illustrating your answer with a diagram Give three advantages of virt..
Show how to implement barriers using semaphores. Your solution should avoid busy-waiting. Be explicit about any initializations that you need to assume.
Write two challenges an OS faces when passing parameters between user and kernel mode. Describe how an OS can overcome them
Discuss how is SOAP related to XML and HTTP? Suppose that your readers are familiar with browsing the internet, but they have no technical knowledge of how its works behind scene.
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.
There is a school of thought that discusses that, far from being undesirable, few degree of scope creep may in fact be beneficial for certain types of assignments.
Explain an IP address. Explain Class A, B, and C networks. Are a MAC address and an IP address the similar thing?
Describe whether there are too many standards organizations attempting to regulate networking field. Take into consideration whether consultation is necessary to manage standards.
Your corporation has just occupied an old historic building in which fifteen workers will work. Due to historic building codes, the corporation is not permitted to run cables inside walls or ceilings.
Main memory uses a block transfer capability & has 1st word (four bytes) access time of fifty ns and access time for following words as 5 ns.
What makes Vista better (or worse) choice for home or office computing? Explain general features of the operating system.
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