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Question:
(a) Briefly discuss and describe the possible RMI invocation semantics.
(b) (i) What is data marshaling?
(ii) Explain the role of a remote object reference during marshaling and unmarshalling, at both clients and servers, in an RMI system.
(iii) By using examples, distinguish between a local method invocation and a remote method invocation.
(c) Explain the benefits of middleware to distributed systems programmers, providing an example for each benefit.
(d) What are stub and skeleton and why are they needed in remote procedure calls?
Define Overflow Chaining Another method will divide the pre-allocated table into two sections: the primary area to determine which keys are mapped and an area for collisions, g
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What is the information associated with an open file? Various pieces of information are associated with an open file which may be: File pointer Disk location of th
1. Draw a schematic diagram of a CMOS inverter and explain its operation. 2. Draw schematic diagrams of CMOS NAND and NOR gates, and explain their operation. 3. Explain what
Question: (a) The following table (table 1.0) gives the length of the CPU burst time in milliseconds of processes P 1 to P 4 . Assume the processes arrived in the order P 1 ,
How does user specify block to be fetched in direct access? By specifying the relative block number, relative to first block in file, which is block 0.
Define thread cancellation & target thread. The thread cancellation is the task of terminating a thread before it has completed. A thread that is to be cancelled is often refer
What is spooling? Spooling overlaps the I/O of single job with the computation of other jobs.
Contiguous allocation: Every file will be allocated contiguous space in the memory. Allow the block size be 1K If a 50K files desires to be allocated space after t
How do we keep track of where the free pieces of memory are? One idea is to maintain a set of linked-lists of free space; each linked-list will store free chunks of some given size
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