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- Question
Which among the following is not aprocess state in unix?
Options- A. Running
- B. Runnable
- C. Zombie
- D. Stopped
- Correct Answer
- Runnable
ExplanationThe process states of unix are running,Zombie,stopped,Waiting.
- 1. What is busy waiting? Discuss
- 2. What scheme does the Kernel in Unix System V follow while choosing a swap device among the multiple swap devices? Discuss
- 3. Explain the popular multiprocessor thread-scheduling strategies. Discuss
- 4. What are the reasons for process suspension? Discuss
- 5. What is a binary semaphore? What is its use? Discuss
- 6. A computer assisted method for the recording and analyzing of existing or hypothetical systems is
Options- A. Data transmission
- B. Data capture
- C. Data flow
- D. Data processing Discuss
- 7. The program that is responsible for loading the operating system into RAM is the _______.
Options- A. BIOS
- B. Bootstrap Program
- C. Drive- Driver
- D. Supervisor Program Discuss
- 8. A UNIX user named Bob wants to replace his chess program with a new one, but he is not sure where the old one is installed. Bob is currently able to run a Java chess program starting from his home directory /home/bob using the command: java -classpath /test:/home/bob/downloads/*.jar games.Chess Bob's CLASSPATH is set (at login time) to: /usr/lib:/home/bob/classes:/opt/java/lib:/opt/java/lib/*.jar What is a possible location for the Chess.class file?
Options- A. /test/Chess.class
- B. /home/bob/Chess.class
- C. /test/games/Chess.class
- D. /user/lib/games/Chess.class Discuss
- 9. Default read write and execute permissions given to a file for owner, group and others are
Options- A. 6-4-4
- B. 6-4-2
- C. 6-4-6
- D. 6-6-6 Discuss
- 10. The list of coded instructions is called
Options- A. Algorithm
- B. Flowchart
- C. Utility programs
- D. Computer program Discuss
Operating Systems problems
Search Results
Correct Answer: The repeated execution of a loop of code while waiting for an event to occur is called busy-waiting The CPU is not engaged in any real productive activity during this period, and the process does not progress toward completion
Correct Answer: Kernel follows Round Robin scheme choosing a swap device among the multiple swap devices in Unix System V
Correct Answer: Load Sharing: Processes are not assigned to a particular processor A global queue of threads is maintained Each processor, when idle, selects a thread from this queue Note that load balancing refers to a scheme where work is allocated to processors on a more permanent basis Gang Scheduling: A set of related threads is scheduled to run on a set of processors at the same time, on a 1-to-1 basis Closely related threads / processes may be scheduled this way to reduce synchronization blocking, and minimize process switching Group scheduling predated this strategy Dedicated processor assignment: Provides implicit scheduling defined by assignment of threads to processors For the duration of program execution, each program is allocated a set of processors equal in number to the number of threads in the program Processors are chosen from the available pool Dynamic scheduling: The number of thread in a program can be altered during the course of execution
Correct Answer: swapping interactive user request timing parent process request
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
Correct Answer: Data flow
Correct Answer: Bootstrap Program
Explanation:
The program that is responsible for loading the operating system into RAM is the bootstrap Loader program.
Correct Answer: /user/lib/games/Chess.class
Explanation:
/user/lib/games/Chess.class could be the possible location of the file
Correct Answer: 6-4-4
Explanation:
Default permissions given to a file are:
Owner - read write and execute - 6
group - write - 4
others - write - 4
Correct Answer: Computer program
Explanation:
A computer program is a collection of instructions that performs a specific task when executed by a computer
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