Operating Systems Questions

• What is cache-coherency?
• What are the benefits of multithreaded programming?
• While running DOS on a PC, which command would be used to duplicate the entire diskette?
• What is logical and physical addresses space?
• What is fragmentation? Different types of fragmentation?
• What is a drawback of MVT?
• What is a shell?
• getppid() system call is used to bias the existing priority of a process
• What is a zombie?
• The PS command prints the process status for only some of the running processes.
• Which among the following are the components of windows registry?
• Which command displays the present workig directory in UNIX?
• Explain the concept of Reentrancy?
• What is thrashing?
• What are short, long and medium-term scheduling?
• What is the Translation Lookaside Buffer (TLB)?
• What is the resident set and working set of a process?
• What is cycle stealing?
• In the context of memory management, what are placement and replacement algorithms?
• In loading programs into memory, what is the difference between load-time dynamic linking and run-time dynamic linking?