Correct Answer: Windows NT uses protection mechanism called rings provides by the process to implement separation between the user mode and kernel mode
Correct Answer: For load-time dynamic linking: Load module to be loaded is read into memory Any reference to a target external module causes that module to be loaded and the references are updated to a relative address from the start base address of the application module With run-time dynamic loading: Some of the linking is postponed until actual reference during execution Then the correct module is loaded and linked
6. What are DDks? Name an operating system that includes this feature.
Correct Answer: Virtual memory is hardware technique where the system appears to have more memory that it actually does This is done by time-sharing, the physical memory and storage parts of the memory one disk when they are not actively being used
8. Explain the concept of the Distributed systems?
Correct Answer: SCSI - Small computer systems interface is a type of interface used for computer components such as hard drives, optical drives, scanners and tape drives It is a competing technology to standard IDE (Integrated Drive Electronics)
Correct Answer: A binary semaphore is one, which takes only 0 and 1 as values They are used to implement mutual exclusion and synchronize concurrent processes