This set of Operating System Multiple Choice Questions & Answers (MCQs) focuses on “Protection – Memory Protection”. 1. What is true regarding ‘Fence’? a) Its a method to confine users to one side of a boundary b) It can protect Operating system from one user c) It cannot protect users from each other d) All … Read more
This set of Operating System Multiple Choice Questions & Answers (MCQs) focuses on “Security”. 1. When an attempt is to make a machine or network resource unavailable to its intended users, the attack is called _____________ a) denial-of-service attack b) slow read attack c) spoofed attack d) starvation attack 2. The code segment that misuses … Read more
This set of Operating System Multiple Choice Questions & Answers (MCQs) focuses on “Protection concepts”. 1. Which principle states that programs, users and even the systems be given just enough privileges to perform their task? a) principle of operating system b) principle of least privilege c) principle of process scheduling d) none of the mentioned … Read more
This set of Operating System Multiple Choice Questions & Answers (MCQs) focuses on “Protection – Access Matrix”. 1. In domain structure what is Access-right equal to? a) Access-right = object-name, rights-set b) Access-right = read-name, write-set c) Access-right = read-name, execute-set d) Access-right = object-name, execute-set 2. What is meaning of right-set? a) It is … Read more
This set of Operating System Multiple Choice Questions & Answers (MCQs) focuses on “Tertiary Storage”. 1. Tertiary storage is built with ____________ a) a lot of money b) unremovable media c) removable media d) secondary storage 2. Floppy disks are examples of ____________ a) primary storage b) secondary storage c) tertiary storage d) none of … Read more
This set of Advanced Operating System Questions and Answers focuses on “RAID Structure – 2”. 1. A large number of disks in a system improves the rate at which data can be read or written if ____________ a) the disks are operated on sequentially b) the disks are operated on selectively c) the disks are … Read more
This set of Operating System Multiple Choice Questions & Answers (MCQs) focuses on “RAID Structure”. 1. RAID level 3 supports a lower number of I/Os per second, because _______________ a) Every disk has to participate in every I/O request b) Only one disk participates per I/O request c) I/O cycle consumes a lot of CPU … Read more
This set of Operating System Multiple Choice Questions & Answers (MCQs) focuses on “Swap Space Management”. 1. Virtual memory uses disk space as an extension of _________ a) secondary storage b) main memory c) tertiary storage d) none of the mentioned 2. Using swap space significantly _________ system performance. a) increases b) decreases c) maintains … Read more
This set of Operating System Multiple Choice Questions & Answers (MCQs) focuses on “Disk Management”. 1. The process of dividing a disk into sectors that the disk controller can read and write, before a disk can store data is known as ____________ a) partitioning b) swap space creation c) low-level formatting d) none of the … Read more
This set of Operating System online quiz focuses on “Disk Scheduling – 2”. 1. Whenever a process needs I/O to or from a disk it issues a ______________ a) system call to the CPU b) system call to the operating system c) a special procedure d) all of the mentioned 2. If a process needs … Read more
