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When we download a movie from the Internet, we don't care about, say, packet sizes. However, even ifwe are not aware of howlow-level details of networks are implemented, our data is actually being sent as lots of small packets, some of which might be lost or arrive out of order. Therefore, it is important that the protocols we use guarantee that we won't have to deal with any of these problems. In other words, all we want is a simple interface that solves our problem; this interface for network programming will be provided by the operating system. Some of these abstractions are:
process-to-process communication
remote function calls
security
hosts have human-readable names
ordered, reliable communication
streams of bytes, instead of discrete packets
support for large messages
routing to ?nal destination
independence from the low-level network and hardware details
Introduction of linux
Essential Properties of Operating System 1. Batch: Jobs with similar needs are batched together and run through the computer as a group by an operator or automatic job sequen
what common event leads to the creation of a process?
An operating system provides the environment within that programs are executed. Internally operating systems differ greatly in their makeup because they are organized along many di
What are the different accessing methods of a file? The different types of accessing a file are: Sequential access: Information in the file is accessed sequentially
explain dynamic patrician stratagies
Problem 1. List out the conditions that result in Deadlock situations. Illustrate deadlock situation with a simple graphical notation Listing conditions for deadlock occu
Question : a) Describe the difference between the authentication of a user account on a peer to peer network and a client server network. b) Compare an end user account with
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.
wat are the commands used for creating the file hierarchy
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