Operating System – Set 4 January 28, 2025 by aasi Home › Computer Operator › Operating System Operating System Operating System – Set 4 📝 Model Practice Set ⚡ Instant Answers & Explanation 🎯 Exam Oriented 0% Report a question What’s wrong with this question? You cannot submit an empty report. Please add some details. 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950 Operating System – Set 4 Dear ! This is Operating System – Set 4 Quiz and it contains 50 questions. Keep Learning! 1 / 50 1) A tree structured file directory system ? Allows easy storage and retrieval of file names Is a much debated unecessary feature Is not essential when we have millions of files None of these 2 / 50 2) A computer communication technology that provides a way to interconnect multiple computer across short distance is? LAN Wireless Network WAN MAN 3 / 50 3) With DOS, you may use the ‘*’ and ‘?’: To represent unspecified characters in a filename When changing the default setting In the extension but not in the drive name or the file name Instead of wildcard characters 4 / 50 4) MS_DOS is a …… operating system ? GUI Popular command-driven User-friendly 5 / 50 5) Operating system is also known as? Database Printer Hardware System software 6 / 50 6) Resolution of externally defined sumbols is performed by? Compiler Linker Loader Assembler 7 / 50 7) To avoid the race condition, the number of processes that may be simultaneously inside their critical section is? 1 16 8 8 / 50 8) In wildcard specification ‘?’ Is used as replacement for? One character None of these Two character Three character 9 / 50 9) A computer system that permits multiple users to run programs at same time ? Real time system Multi-processing Multi-tasking system Time sharing 10 / 50 10) Which of the following scheduling policy is well suited for time shared operating system? First com first serve Round robin Elevator Shortest job first 11 / 50 11) A microsoft windows is……..a(n? Database Word processing Operating system Graphic program 12 / 50 12) The DIR command in DOS operating system? Erases file None of these Copies files Extracts a list of file names 13 / 50 13) All of the following are examples of real security and privacy risks except? Theft Hacker Virus Spam 14 / 50 14) FIFO scheduling is_____? Non preemptive scheduling Preemptive scheduling Deadline scheduling Fair share scheduling 15 / 50 15) Bootstrap or vector is called? Main program Primary storage Secondary program Grappling hook program 16 / 50 16) A public key encryption system? Allows only the correct receiver to decode the data Allows only the correct sender to decode the data Does not encode the data before transmitting it Allows only on to decode the transmission 17 / 50 17) It is not possible to have a deadlock involving only a single process. Why? This holds mutual exclusion,hold-and-wait and non-preemption None of these Because single process not always in safe state This follows directly from the hold-and-wait condition 18 / 50 18) To protect system, there are how many security levels? 4 2 3 1 19 / 50 19) A system program that combines the separately compiled modules of a program into a form suittable for execution? Cross compiler Linking loader Load and go Assembler 20 / 50 20) The simplest way to break a deadlock is to? Preempt a resource Lock one of the processes Roll back Kill one of the processes 21 / 50 21) The batch file uses the extension? DOS BAT Bach DOC 22 / 50 22) Which of the following is the process by which a users privileges risks except? Authorization Authentication Access control None of these 23 / 50 23) Which of the following commands is goven to reboot the computer? Ctrl + Shift + Del Ctrl + Alt + TAB Ctrl + Alt + Del Ctrl + Alt + Shift 24 / 50 24) The…..program compresses large files into a smaller file? None of these WinZip WinShrink WinStyle 25 / 50 25) Dead-lock in an Operating System is? ALL Definite waiting process Undesirable process Desirable process 26 / 50 26) The maximum amount of information that is available in one portion of the disk access arm for a removal disk pack(without further movement of the arm with multiple heads)? A track of data A plate of data A cylinder of data A block of data 27 / 50 27) How many characters form a secondary name for a file? None of these 8 3 12 28 / 50 28) What is the maximum length allowed for primary name of a computer file under DOS? 12 3 8 None of these 29 / 50 29) Which of following approaches do not require knowledge of the system state? Deadlock avoidance Deadlock detection None of these Deadlock prevention 30 / 50 30) Which of the following topologies consists of multiple CPU connected single communication line running the length of the network? Ring Tree Star Bus 31 / 50 31) Security violation due to? None of these Malicious Both A and B Accidental 32 / 50 32) Using windows explorer, a plus(+ sign in front of a folder indicates……..? The folder contains subfolder An open folder None of these The text file 33 / 50 33) Which directory implementation is used in most Operating System? Tree directory structure Two level directory structure Acyclic directory structure Single level directory structure 34 / 50 34) _______Is a high level abstraction over semaphore? Mutual exclusion None of these Monitor Shared memory 35 / 50 35) Which is not application software? Photoshop Winword XP Page Maker Windows NT 36 / 50 36) Process is? Program in high level language kept on disk Contets of main memory A job in secondary memory Program in execution 37 / 50 37) Which of the following is program group? Word Accessories All of above Paint 38 / 50 38) Telnet is a service that runs? Cable tv network Remote program Telivision on net Telnet 39 / 50 39) Memory management is? Replaced with virtual memory on on current systems Not used in modern operating system Not used on multiprogramming systems Critical for even the simplest operating systems 40 / 50 40) A major security problem for operating system is? None of these Human problem Authentication problem Physical problem 41 / 50 41) The bankers algorithm is used? None of these To detect deadlock in operating systems To prevent deadlock in operating sys To rectify a deadlocked state 42 / 50 42) A device that forwards data packet from one network to another is called a? Switch Bridge Gateway Hub 43 / 50 43) Which of the following refers to the associative memory? The address of the data is supplied by the users The data are accessed sequentially The address of the data is generated by the CPU There is no need for an address i.e the data is used as an address 44 / 50 44) Every file must have a………? Field File name Records Data 45 / 50 45) Which command is used to see the sub-directory structure of drive? Tree None of these List Subtree 46 / 50 46) The part of machine level instruction, which tells the Central processor what has to be done,is? Operating code Address Flip-Flop Locator 47 / 50 47) What is the name given to the database management system which is able to handle full text data, image data, audio & video? Multimedia Full media Video Picture 48 / 50 48) The startup routine runs, when mechine boots up is known as? BOOT up POST I/O operation Operating Routine 49 / 50 49) Linux is a/n …….. operating system? Embedded Mac Open source windows 50 / 50 50) Memory management is? Not used on multiprogramming systems Critical for even the simplest operating systems Not used in modern operating system Replaced with virtual memory on current systems Your score isThe average score is 0%🎉 Challenge alert! 💡 Share this quiz with your friends and see who scores the highest! 🏆🤩🔥 LinkedIn Facebook Follow Us @ 0% Restart quiz Exit We’d love to hear your thoughts! 📝 Share your valuable review with us. 🙌 🌟 Thank you for your support! Your feedback means the world to us. 🙏💖 Send feedback
