Podcast
Questions and Answers
What type of system is a Client-Server system classified as?
What type of system is a Client-Server system classified as?
In memory management, what does compaction aim to reduce?
In memory management, what does compaction aim to reduce?
What typically causes traps or exceptions to occur?
What typically causes traps or exceptions to occur?
Which of the following is NOT a type of addressing in a computer system?
Which of the following is NOT a type of addressing in a computer system?
Signup and view all the answers
The base register contains what information?
The base register contains what information?
Signup and view all the answers
Which of the following is NOT a deployment model of cloud computing?
Which of the following is NOT a deployment model of cloud computing?
Signup and view all the answers
What is the primary goal of cloud deployment models?
What is the primary goal of cloud deployment models?
Signup and view all the answers
What form of fragmentation is compaction aimed at alleviating?
What form of fragmentation is compaction aimed at alleviating?
Signup and view all the answers
What is the primary role of the kernel in an operating system?
What is the primary role of the kernel in an operating system?
Signup and view all the answers
What advantage does virtual memory provide in an operating system?
What advantage does virtual memory provide in an operating system?
Signup and view all the answers
Which statement correctly describes a Process Control Block (PCB)?
Which statement correctly describes a Process Control Block (PCB)?
Signup and view all the answers
What does an interrupt vector do in an operating system?
What does an interrupt vector do in an operating system?
Signup and view all the answers
What is the purpose of a Device Queue in an operating system?
What is the purpose of a Device Queue in an operating system?
Signup and view all the answers
Which of the following optimizations aims to decrease response time for processes in scheduling?
Which of the following optimizations aims to decrease response time for processes in scheduling?
Signup and view all the answers
Which operation is not considered a directory operation in file management?
Which operation is not considered a directory operation in file management?
Signup and view all the answers
Which option is least likely to be a direct result of process scheduling optimization?
Which option is least likely to be a direct result of process scheduling optimization?
Signup and view all the answers
What does the term 'process' refer to in the context of operating systems?
What does the term 'process' refer to in the context of operating systems?
Signup and view all the answers
Which state is NOT a possible state of a process?
Which state is NOT a possible state of a process?
Signup and view all the answers
What is a primary purpose of Operating System Protection?
What is a primary purpose of Operating System Protection?
Signup and view all the answers
Which of the following is NOT a file allocation method?
Which of the following is NOT a file allocation method?
Signup and view all the answers
In which context do user programs interact with memory addresses?
In which context do user programs interact with memory addresses?
Signup and view all the answers
A multi-tasking system is best described as which of the following?
A multi-tasking system is best described as which of the following?
Signup and view all the answers
Cloud computing is characterized by which of the following descriptions?
Cloud computing is characterized by which of the following descriptions?
Signup and view all the answers
What does the Ready Queue consist of?
What does the Ready Queue consist of?
Signup and view all the answers
What is the role of system calls in operating systems?
What is the role of system calls in operating systems?
Signup and view all the answers
Which statement best defines the Deadlock problem?
Which statement best defines the Deadlock problem?
Signup and view all the answers
When is a bootstrap program loaded?
When is a bootstrap program loaded?
Signup and view all the answers
The primary purpose of short-term schedulers is to:
The primary purpose of short-term schedulers is to:
Signup and view all the answers
What does the 'Open(Ni)' operation do in file handling?
What does the 'Open(Ni)' operation do in file handling?
Signup and view all the answers
How can processes communicate with each other?
How can processes communicate with each other?
Signup and view all the answers
What term is used for a process that spends most of its time engaged in I/O operations?
What term is used for a process that spends most of its time engaged in I/O operations?
Signup and view all the answers
Which of the following is a characteristic of a Time-Sharing system?
Which of the following is a characteristic of a Time-Sharing system?
Signup and view all the answers
What is one advantage of a multi-processing system?
What is one advantage of a multi-processing system?
Signup and view all the answers
Which of the following is NOT a scheduling algorithm?
Which of the following is NOT a scheduling algorithm?
Signup and view all the answers
Which of the following file types does NOT fall under the data file types?
Which of the following file types does NOT fall under the data file types?
Signup and view all the answers
Which advantage is associated with using virtual memory?
Which advantage is associated with using virtual memory?
Signup and view all the answers
Which of the following is NOT a file attribute?
Which of the following is NOT a file attribute?
Signup and view all the answers
What is the average waiting time in a FCFS scheduling algorithm for the calculated results?
What is the average waiting time in a FCFS scheduling algorithm for the calculated results?
Signup and view all the answers
In a Non-preemptive Shortest Job First (SJF) scheduling algorithm, at which time unit does process P3 start?
In a Non-preemptive Shortest Job First (SJF) scheduling algorithm, at which time unit does process P3 start?
Signup and view all the answers
Which of the following is NOT an advantage of using a multi-processing system?
Which of the following is NOT an advantage of using a multi-processing system?
Signup and view all the answers
Study Notes
Operating System Concepts
- A process is an active entity.
- The operating system provides a mechanism for controlling access to system resources by programs or users, known as operating system protection.
- User programs deal with logical addresses, not physical addresses.
- Cloud computing involves providing dynamically scalable and virtualized resources as a network service.
- System calls are triggered by hardware interrupts.
- The bootstrap program is loaded after power-up or reboot.
- The Open(Ni) file operation moves the contents of directory entry Ni in memory to the directory structure on disk.
- Processes can pass data to other processes.
- The kernel is the only program that runs continuously on the computer.
- Virtual memory allows the logical address space to be larger than the physical address space.
- The Process Control Block (PCB) represents each process in the operating system.
- Interrupts transfer control to the interrupt subroutine through the interrupt vector.
- A device queue is a set of processes waiting for an I/O device.
- Ways to optimize scheduling include minimizing turnaround time, average waiting time, and response time.
- Directory operations include reading from a file, searching for a file, deleting a file, and renaming a file.
- Client-server systems are a type of distributed system.
- In memory management, compaction reduces external fragmentation.
- Traps or exceptions occur due to errors like division by zero, invalid memory access, and API calls.
- The types of addressing in a computer system include physical, real, and logical addressing.
- The base register holds the first physical address of the currently running program.
- Deployment models for cloud computing include private, public, community, and hybrid.
Process States
- Processes can be in one of the following states: ready, running, interrupting, and waiting.
File Allocation Methods
- File allocation methods include contiguous allocation, linked allocation, and indexed allocation.
Multitasking Systems
- Multitasking systems include multi-programmed batch systems and time-sharing systems.
Ready Queue
- The ready queue is a set of all processes residing in main memory, ready and waiting to execute.
Deadlock Problem
- The deadlock problem occurs when a set of blocked processes each hold a resource and wait to acquire a resource held by another process in the same set.
Short-Term Schedulers
- Short-term schedulers select which job to run next.
CPU-Bound Process
- A CPU-bound process spends most of its time doing I/O requests.
Advantages of Multi-Processing
- The advantages of multi-processing systems include increased throughput, reliability, and the ability for other CPUs to pick up work if a CPU fails.
Scheduling Algorithms
- Scheduling algorithms include First Come First Served, Ideal Job First, Priority, and Round Robin.
Data File Types
- Data file types include numeric, character, and binary files.
Virtual Memory Advantages
- Advantages of virtual memory include the ability to have a logical address space larger than the physical address space, sharing address spaces between processes, more efficient process creation, and faster start-up times for new processes.
File Attributes
- File attributes include type, delete, location, and protection.
Scheduling Algorithms (Numerical Examples)
- Using FCFS scheduling, the average waiting time is 43/4.
- Using a non-preemptive Shortest Job First (SJF) scheduling algorithm, process P3 starts at time unit 7.0.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Test your knowledge on key operating system concepts such as processes, system calls, virtual memory, and operating system protection. This quiz covers essential topics that form the backbone of computer science and cloud computing. Explore how user programs interact with the operating system and the various mechanisms involved.
