Operating System Exam Intake 42, IoT and Tel PDF

11/25/21, 9:48 AM Operating System Exam intake 42, IoT and Tel. Duration: 60 minutes Operating System Exam intake 42, IoT and Tel. Duration: 60 minutes...

11/25/21, 9:48 AM Operating System Exam intake 42, IoT and Tel. Duration: 60 minutes Operating System Exam intake 42, IoT and Tel. Duration: 60 minutes  * Required 1 Enter Your Name: * Enter your answer 2 What Is Your Track? * IoT Tel. ERP 3 Process is a passive entity. * (2 Points) True https://forms.office.com/pages/responsepage.aspx?id=CD8mgpydXU-0FU_0Fmn3_Y49grliwBJClvFsM201q-dUQkRLMkxYUDdUV0lOMU42S0… 1/18 11/25/21, 9:48 AM Operating System Exam intake 42, IoT and Tel. Duration: 60 minutes False 4 Operating System Protection refers to a mechanism for controlling access by programs, or users to system resources. * (2 Points) True False 5 The user program deals with logical addresses; it never sees the real physical addresses. * (2 Points) True False 6 Cloud computing can be defined as a new style of computing in which dynamically scalable and virtualized resources are provided as a network service. * (2 Points) True False 7 The System calls are calling for hardware interrupts. * (2 Points) https://forms.office.com/pages/responsepage.aspx?id=CD8mgpydXU-0FU_0Fmn3_Y49grliwBJClvFsM201q-dUQkRLMkxYUDdUV0lOMU42S0… 2/18 11/25/21, 9:48 AM Operating System Exam intake 42, IoT and Tel. Duration: 60 minutes True False 8 Bootstrap program is loaded after power-up or reboot. * (2 Points) True False 9 Open(Ni) – as a File operation- means: move the content of entry Ni in memory to directory structure on disk. * (2 Points) True False 10 Any process may pass data to other process. * (2 Points) True False 11 The one program running at all times on the computer is the kernel. * (2 Points) https://forms.office.com/pages/responsepage.aspx?id=CD8mgpydXU-0FU_0Fmn3_Y49grliwBJClvFsM201q-dUQkRLMkxYUDdUV0lOMU42S0… 3/18 11/25/21, 9:48 AM Operating System Exam intake 42, IoT and Tel. Duration: 60 minutes True False 12 By using the virtual memory, the logical address space can be much larger than physical address space. * (2 Points) True False 13 We can describe the Process Control Block (PCB) as: * (2 Points) It is just used by operating system designers for design purpose A way to transfer a process between different types of operating systems Each process is represented in the operating system by a PCB type of addressing 14 Interrupt transfers control to the interrupt subroutine (subprogram) generally, through the: * (2 Points) Interrupt vector Interrupt service routine. Interrupt sector. Interrupt section https://forms.office.com/pages/responsepage.aspx?id=CD8mgpydXU-0FU_0Fmn3_Y49grliwBJClvFsM201q-dUQkRLMkxYUDdUV0lOMU42S0… 4/18 11/25/21, 9:48 AM Operating System Exam intake 42, IoT and Tel. Duration: 60 minutes 15 Device Queue is: * (2 Points) A set of all processes in the system A set of all processes residing in main memory, ready and waiting to execute. A set of processes waiting for an I/O device. A set of terminated processes 16 One of the scheduling optimization ways is minimizing: * (2 Points) Turnaround time of each process. Average waiting time of processes. Response time for each process. All of the above. 17 All the following are directory operations except: * (2 Points) Read from a File. Search for a file. Delete a file. Rename a file https://forms.office.com/pages/responsepage.aspx?id=CD8mgpydXU-0FU_0Fmn3_Y49grliwBJClvFsM201q-dUQkRLMkxYUDdUV0lOMU42S0… 5/18 11/25/21, 9:48 AM Operating System Exam intake 42, IoT and Tel. Duration: 60 minutes 18 Client-Server system is a type of: * (2 Points) Multi-Processor systems Desktop Systems Clustered Systems Distributed System 19 In memory management, compaction is an operation to reduce: * (2 Points) Internal Fragmentation External Fragmentation Overhead allocation problem None of the above 20 Traps or exceptions are happening because: * (2 Points) Error, division by zero or invalid memory access A process need to call an API of its operating system A process communicates another process All of the above https://forms.office.com/pages/responsepage.aspx?id=CD8mgpydXU-0FU_0Fmn3_Y49grliwBJClvFsM201q-dUQkRLMkxYUDdUV0lOMU42S0… 6/18 11/25/21, 9:48 AM Operating System Exam intake 42, IoT and Tel. Duration: 60 minutes 21 The types of addressing in a computer system: * (2 Points) Physical address Real address Logical address None of the above 22 The base register is a register which include: * (2 Points) The first physical address of the currently running program The first logical address of the currently running program The first physical address of the finished program The first logical address of a waiting program 23 The types of deployment models of cloud – way of access to the cloud- are: * (2 Points) Private Public Community Hybrid https://forms.office.com/pages/responsepage.aspx?id=CD8mgpydXU-0FU_0Fmn3_Y49grliwBJClvFsM201q-dUQkRLMkxYUDdUV0lOMU42S0… 7/18 11/25/21, 9:48 AM Operating System Exam intake 42, IoT and Tel. Duration: 60 minutes 24 Select the file access methods from the following: * (2 Points) Random Access Sequential Access Direct Access None of the above 25 The Deadlock can arise if the following conditions hold simultaneously: * (2 Points) Mutual Exclusion Hold and wait Circular wait No preemption resources 26 For any modern time-sharing operating system, select the common available process operations which may be managed: * (2 Points) Creation/termination Memory compaction Open/close file Going to trap module https://forms.office.com/pages/responsepage.aspx?id=CD8mgpydXU-0FU_0Fmn3_Y49grliwBJClvFsM201q-dUQkRLMkxYUDdUV0lOMU42S0… 8/18 11/25/21, 9:48 AM Operating System Exam intake 42, IoT and Tel. Duration: 60 minutes 27 Select the most appropriate statement to describe the relations between a child process and its parent process: * (2 Points) OS does not allow a child process to continue after termination of its parent. OS allows a child process to continue after termination of its parent. OS allows a child process to be created without parent process. There is no relation between a child process and its parent process. 28 The Dispatch latency is: * (2 Points) Time to get a process from ready queue to be running in CPU. Time it takes for the dispatcher to stop one process and start another running. Time to remove all the processes from ready queue. None of the above. 29 Select the advantages of virtual machines from the following: * (2 Points) Run operating systems where the physical hardware is unavailable Emulate more machines than are physically available Enhance the memory management performance Run legacy systems https://forms.office.com/pages/responsepage.aspx?id=CD8mgpydXU-0FU_0Fmn3_Y49grliwBJClvFsM201q-dUQkRLMkxYUDdUV0lOMU42S0… 9/18 11/25/21, 9:48 AM Operating System Exam intake 42, IoT and Tel. Duration: 60 minutes 30 Any process may be at one of the following states: * (2 Points) Ready Running Interrupting Waiting 31 Select the file allocation Methods from the following: * (2 Points) Contiguous Allocation Linked Allocation Indexed Allocation Discrete Allocation 32 Multi-tasking system is a: * (2 Points) Multi-programmed batch system Time-Sharing system Simple Batch system None of the above https://forms.office.com/pages/responsepage.aspx?id=CD8mgpydXU-0FU_0Fmn3_Y49grliwBJClvFsM201q-dUQkRLMkxYUDdUV0lOMU42S0… 10/18 11/25/21, 9:48 AM Operating System Exam intake 42, IoT and Tel. Duration: 60 minutes 33 Ready Queue is: * (2 Points) A set of all processes in the system A set of all processes residing in main memory, ready and waiting to execute. A set of processes waiting for an I/O device. A set of terminated processes 34 The Deadlock problem is: * (2 Points) A set of blocked processes each holding a resource and waiting to acquire a resource held by another process in the same set Any number of blocked processes more than 2 processes More than two processes wait I/O operations None of the above 35 Short-term schedulers used to: * (2 Points) Select which job to be putting into ready queue Select which job to be running next. Release all processes from Operating System. All of the above https://forms.office.com/pages/responsepage.aspx?id=CD8mgpydXU-0FU_0Fmn3_Y49grliwBJClvFsM201q-dUQkRLMkxYUDdUV0lOMU42S0… 11/18 11/25/21, 9:48 AM Operating System Exam intake 42, IoT and Tel. Duration: 60 minutes 36 The process which spend most of its time doing I/O requests is called: * (2 Points) CPU-Bound Process Active Process. Passive Process. I/O-Bound Process 37 Select the system calls categories from the following: * (2 Points) File management Device Management Process control Hardware maintenance Communications 38 Some of the main reasons of processes cooperation are: * (2 Points) Data sharing. Modularity. Speedup the performance. All of the above https://forms.office.com/pages/responsepage.aspx?id=CD8mgpydXU-0FU_0Fmn3_Y49grliwBJClvFsM201q-dUQkRLMkxYUDdUV0lOMU42S0… 12/18 11/25/21, 9:48 AM Operating System Exam intake 42, IoT and Tel. Duration: 60 minutes 39 How to satisfy a request of size n from a list of free holes in main memory- in Dynamic Storage-Allocation technique: * (2 Points) First-fit Best-fit Worst-fit All of the above. 40 The main function of the process dispatcher: * (2 Points) Gives control of the CPU to the selected process to be run by the short-term scheduler. Takes control of the CPU from the selected process to be run by the short-term scheduler. Release all the processes from ready queue. None of the above. 41 The requirements for any process are: * (2 Points) CPU Burst time Size of needed memory The needed I/O devices The needed files https://forms.office.com/pages/responsepage.aspx?id=CD8mgpydXU-0FU_0Fmn3_Y49grliwBJClvFsM201q-dUQkRLMkxYUDdUV0lOMU42S0… 13/18 11/25/21, 9:48 AM Operating System Exam intake 42, IoT and Tel. Duration: 60 minutes 42 The meaning of preemptive CPU scheduling schema is: * (2 Points) Waiting for another process. Bring a process from ready queue. Process is releasing the CPU before finishing its execution to execute another process. None of the above. 43 The advantages of Multi-processing system: * (2 Points) Increase throughput Increase reliability If CPU fail, other CPU’s pick up work All of the above 44 Some of Scheduling Algorithms are: * (2 Points) First Come First Serviced. Ideal Job First. Priority. Round Robin. https://forms.office.com/pages/responsepage.aspx?id=CD8mgpydXU-0FU_0Fmn3_Y49grliwBJClvFsM201q-dUQkRLMkxYUDdUV0lOMU42S0… 14/18 11/25/21, 9:48 AM Operating System Exam intake 42, IoT and Tel. Duration: 60 minutes 45 The data file types are: * (2 Points) Numeric Character Binary All of the above 46 Advantages of using virtual memory are: * (2 Points) Logical address space can therefore be much larger than physical address space Allows address spaces to be shared by several processes Allows for more efficient process creation Start the new process very fast 47 Which of the following are file attributes: * (2 Points) Type. Delete. Location. Protection https://forms.office.com/pages/responsepage.aspx?id=CD8mgpydXU-0FU_0Fmn3_Y49grliwBJClvFsM201q-dUQkRLMkxYUDdUV0lOMU42S0… 15/18 11/25/21, 9:48 AM Operating System Exam intake 42, IoT and Tel. Duration: 60 minutes 48 In case of using FCFS scheduling algorithm, the average waiting time for the situation is: * (2 Points) 23/4. 45/4. 43/4. 36/4. 49 In case of using Non-preemptive Shortest Job First (SJF) scheduling algorithm, the process P3 starts at time unit: * (2 Points) 7.0 17.0 27.0 8.0 https://forms.office.com/pages/responsepage.aspx?id=CD8mgpydXU-0FU_0Fmn3_Y49grliwBJClvFsM201q-dUQkRLMkxYUDdUV0lOMU42S0… 16/18 11/25/21, 9:48 AM Operating System Exam intake 42, IoT and Tel. Duration: 60 minutes 50 In case of using preemptive Priority scheduling algorithm, the waiting time for process P3 is: * (2 Points) 8 7 15 17 51 In case of using Round Robin scheduling algorithm (with quantum 5), the process P4 ends its work at time unit: * (2 Points) 10.0 19.0 17.0 25.0 https://forms.office.com/pages/responsepage.aspx?id=CD8mgpydXU-0FU_0Fmn3_Y49grliwBJClvFsM201q-dUQkRLMkxYUDdUV0lOMU42S0… 17/18 11/25/21, 9:48 AM Operating System Exam intake 42, IoT and Tel. Duration: 60 minutes 52 In case of using preemptive Shortest Job First (SJF) scheduling, the response time for processes P1, P2, P3, P4 are: * (2 Points) 0, 15, 0, 0 0, 10, 0, 0 5, 10, 15, 20 0, 5, 3, 7 Submit Never give out your password. Report abuse This content is created by the owner of the form. The data you submit will be sent to the form owner. Microsoft is not responsible for the privacy or security practices of its customers, including those of this form owner. Never give out your password. Powered by Microsoft Forms | The owner of this form has not provided a privacy statement as to how they will use your response data. Do not provide personal or sensitive information. | Terms of use https://forms.office.com/pages/responsepage.aspx?id=CD8mgpydXU-0FU_0Fmn3_Y49grliwBJClvFsM201q-dUQkRLMkxYUDdUV0lOMU42S0… 18/18