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What are the steps followed in testing?
i. Unit testing - The individual components are tested in this type of testing.
ii. Module testing - Related collection of independent components are tested.
iii. Sub-system testing - This is a kind of integration testing. Several modules are integrated into a subsystem and the entire subsystem is tested.
iv. System testing - The whole system is tested in this system.
v. Acceptance testing - This type of testing involves testing of the system with customer data. If the system behaves as per customer require then it is accepted.
What is multiprogramming? Multiprogramming: The management of many processes within a single processor system. Operating systems such like UNIX provide multiprogramming for sha
Before proceeding with its execution, every process must obtain all the resources it needs is called Hold and wait
System Service Program system service program Supports and provides the services for other program. System service program perform Varity of tasks. They are further divided in
Explain about deadlock detection? In deadlock situation, the system must provide An algorithm that verifies the state of the system to verify whether a deadlock has occu
Q. Describes responsibilities of the I/O manager? Answer: The I/O manager is responsible for file systems and device drivers and network drivers. The I/O manager keeps follow
what is inter process communication..
FIXED PARTITIONING Using fixed partitioning we are able to allocate the memory Here we are dividing the memory into a few fixed partitions.Every partition may not be of the si
Why is it not possible to enforce memory protection at compile time? Every process should be protected against unwanted interference by other process, whether intentional or
what do you mean by starvation?explain in detail
Define caching. A cache is a region of fast memory that holds copies of data. Access to the cached copy is well-organized than access to the original. Caching and buffering are
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