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GK One-Line Question & Answer

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Computer Fundamentals → Introduction to Computer 37

Linux primarily uses which file system?
ext4
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The CMOS chip on a motherboard stores?
BIOS settings
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Which protocol assigns IP addresses automatically?
DHCP
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GUI stands for?
Graphical User Interface
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CLI stands for?
Command Line Interface
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Which of the following is a multi-user OS?
Linux
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Which scheduling algorithm gives equal time slices to all processes?
Round Robin
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Deadlock in OS occurs when?
Processes wait for each other indefinitely for resources
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Which memory management technique divides memory into equal fixed-size blocks?
Paging
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Thrashing in OS refers to?
Excessive paging/swapping reducing useful work
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Which of the following is NOT an OS?
Oracle Database
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A process in the 'Ready' state means?
It is waiting for CPU
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Context switching refers to?
Saving and restoring CPU state when switching processes
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Which is the fastest I/O technique?
DMA
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RAID stands for?
Redundant Array of Independent Disks
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Which RAID level provides striping with no redundancy?
RAID 0
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RAID 1 provides?
Mirroring
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Which command in Linux lists directory contents?
ls
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Which Windows command shows IP configuration?
ipconfig
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The CPU utilization in an ideal system should be close to?
80-90%
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A thread is?
A lightweight process sharing same address space
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Multithreading allows?
Multiple threads of one process to run concurrently
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Which type of OS is used in ATMs?
Time-sharing
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A distributed OS runs on?
Multiple networked computers
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Which scheduling gives highest priority to shortest jobs?
SJF
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Spooling stands for?
Simultaneous Peripheral Operations Online
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Which memory area stores local variables of a function?
Stack
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Dynamic memory allocation uses?
Heap
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Which of the following causes internal fragmentation?
Fixed-size partitioning
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What is the purpose of an interrupt?
To signal CPU that immediate attention is needed
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Which of the following is NOT a process state?
Compiling
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The purpose of page table is?
Map virtual addresses to physical addresses
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Which OS developed by Linus Torvalds?
Linux
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Semaphore is used to?
Synchronize process access to shared resources
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Mutual exclusion means?
Only one process accesses critical section at a time
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A pipe in OS is used for?
Inter-process communication
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Which command in Windows clears the command prompt screen?
cls
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Computer Fundamentals → Operating System Basics 2

The kernel of an OS is responsible for?
Hardware-software interaction
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Which of the following is a batch operating system characteristic?
No user interaction during execution
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Computer Fundamentals → Memory Units 1

Which is used to protect OS from unauthorized access?
All of the above
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