A virtual machine is created to serve a purpose, depending upon the available resources in the resource pool. In time once their purpose is met, they are either discarded or are being utilized for other purposes such as backup virtual machines or even to help with virtual machine load balancing. In a typical scenario, draw a diagram and explain all the 5 (Five) phases of Virtual Machine Life
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A virtual machine is created to serve a purpose, depending upon the available resources in the resource pool. In time once their purpose is met, they are either discarded or are being utilized for other purposes such as backup virtual machines or even to help with virtual machine load balancing. In a typical scenario, draw a diagram and explain all the 5 (Five) phases of Virtual Machine Life Cycle.
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- A real-time operating system (RTOS) is an operating system (OS) for real-time applications that processes data and events that have critically defined time constraints. An RTOS is distinct from a time sharing operating system, such as Unix, which manages the sharing of system resources with a scheduler, data buffers, or fixed task prioritization in a multitasking or multiprogramming environment. Processing time requirements need to be fully understood and bound rather than just kept as a minimum. All processing must occur within the defined constraints. Real-time operating systems are event-driven and preemptive, meaning the OS is capable of monitoring the relevant priority of competing tasks, and make changes to the task priority. Event-driven systems switch between tasks based on their priorities, while time-sharing systems switch the task based on clock interrupts. Discuss in at most 1 page the idea and requirements of RTOS. show how this OS structure and services can be used in…Describe a process that allows an operating system to enforce limited capability transfers. That is, process A may pass a capability to process B, but process A does not want process B to transfer the capability to any other processes. A overview of the activities to be performed by A and B, as well as the activities performed by and details stored by the operating system, should be included in your design.Problem 3 In a system. 90% of the execution time is spent on a component that is improved to run five times faster. What is the maximum speedup for the entire system?
- All multiprogramming operating systems, from single-user systems such as Windows for end users to mainframe systemssuch as IBM’s mainframe operating system z/OS which can support thousands of users, are built around the concept ofthe process. Most requirements that the OS must meet can be expressed with reference to processes. We can also thinkof a process as an entity that consists of a number of elements Why are two modes (user and kernel) needed?Explain the concept of "memory ballooning" in virtualized environments. How does it help in dynamically allocating memory resources to virtual machines?With regard to the performance of virtual machines, what is one of the most critical hardware resources to monitor and manage? What is the impact of this significant hardware resource on the virtual environment? What exactly is its function?
- Review the differences and similarities between the ideas of virtual memory and virtual machines. Please explain the purposes of both. Discuss the pros and cons of each option. Extend on the benefits of using virtual machines and memory in what situations they would be most useful.Describe a process that allows an operating system to enforce limited capability transfers. That is, process A may pass a capability to process B, but process A does not want process 8 to transfer the capability to any other processes. A overview of the activities to be performed by A and B, as well as the activities performed by and details stored by the operating system, should be included in your design.Scheduling is a method that is used to distribute valuable computing resources, usually processor time, bandwidth, and memory, to the various processes, threads, data flows and applications that need them. Scheduling is done to balance the load on the system and ensure equal distribution of resources and give some prioritization according to set rules. This ensures that a computer system is able to serve all requests and achieve a certain quality of service. With this regard, Discuss the usefulness of Gantt charts in the scheduling process.
- Modern Operating Systems must tackle the challenges of Synchronization and Deadlock. ’Process Synchronization’ is the task of coordinating the execution of processes in a way that no two processes can have access to the same shared data or resource. A process requesting a resource may have to wait, if the resource is not available at that time. Sometimes, a waiting process is never able to change state, because the resources it has requested are held by other waiting processes; this situation is called ’Deadlock'.Modern Operating Systems must tackle the challenges of Synchronization and Deadlock. 'Process Synchronization' is the task of coordinating the execution of processes in a way that no two processes can have access to the same shared data or resource. A process requesting a resource may have to wait, if the resource is not available at that time. Sometimes, a waiting process is never able to change state, because the resources it has requested are held by other waiting processes; this situation is called 'Deadlock'. In concurrent programming, a "critical section" is a part of a multi-process program thatmay not be concurrently executed by more than one of the program's thread. Let us consider a 2 processes solution: do {flag[i] = TRUE;while(flag[j]); %waitCRITICAL SECTIONflag[i] = FALSE;REMAINDER SECTION} while (TRUE);Pseudo-code of $P_i$ (the one of $P_j$ is symmetric) a) Does the given solution satisfy the mutual exclusion requirement? Explain (asimple 'yes-no' answer is NOT enough.…The computing system is an environment where multiple programs need to make use of alimited set of resources offered by the system, and processes may have to compete forresources. This competition may lead to a deadlock in the system, where each process is heldup in a cycle of waiting for other resources to be released by other processes. All processesare unable to proceed further. This will cause a serious problem to the system. Therefore, thesystem needs to resolve deadlocks or prevent processes from entering a deadlock.One of the schemes of avoiding a deadlock is known as the Banker’s Algorithm. In thisalgorithm, all resource allocations are simulated and tested to determine whether an allocation pattern will possibly cause a deadlock. create the program based on Banker’s algorithm to test asystem for deadlocks and try to allocate resources to process then detect again whether the allocation will cause deadlocks with the current resources available and the needs of all the process…