2Recall the various deadlock detection and prevention algorithms we've discussed in class andconsider the following snapshot of a system with five processes (P10, P11, P12, P13, P14) and four resources(R1, R2, R3, R4). R1, R2, R3, and R4 have a total of 11, 13, 7, and 9 resources, respectively. There are nocurrent outstanding queued unsatisfied requests.Table 1: AllocationTable 2: MaxR3 R4PIDR.1 R2 R3 R4PIDR1104113121215213101305014130124111201211311423132375524R255432300363738Is the system currently in a safe or unsafe state? If safe, provide the process execution order. If unsafeexplain your answer.

Deadlock occurs when each process holds a resource and waits for another resource which is assigned…

Answered: 2 Recall the various deadlock detection…

Computer Networking: A Top-Down Approach (7th Edition)

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Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

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Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Deadlock detection and recovery: Select all of the following statements that are true. A wait-for graph can be constructed from a resource allocation graph by eliminating the resources and collapsing the associated edges. A forced termination of one process to recover from a deadlock never has any side effects on other processes running in the system. In order for a process to be able to return to a previous state, at least one checkpoint of a safe process state is needed. Deadlock detection must be carried out after every resource allocation which cannot be immediately granted. At the start of the banker's algorithm, "Work" refers to the actually available system resources. One sign of a deadlock is that many processes are waiting, although the CPU is not busy.
Please solve the question for the last two parts. Thanks in advance.
For mutual exclusion with a preemptive scheduler, it is necessary to introduce explicit locks, and machinery that makes requesting processes wait when a lock is unavailable. We considered casting our locks as semaphores, but decided that, compared with monitors, they exert too little structuring discipline on concurrent programs." How do semaphores "exert too little structuring discipline" and how is this remedied by monitors? Construct an example to show how the structuring discipline exerted by monitors could be useful.
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a. b. C. d. e. f. After many insertions and deletions of items to a circular queue; the final status looks like the figure given below: myFront = 4 and myBack = 2 1 myBack 0 X P A D 3 How many items are in the circular queue? What are the items? (Write characters) What is the front item (letter) in the queue? What is the rear item (letter) in the queue? If 'F' is inserted in the existing queue; what will be the value of myBack and myFront? myFront = and myBack = If the front item is removed; myBack? myFront = myFront what will be the value of myFront and and myBack =
Please attach a picture，I need downloadable images as an answer. The RL can be implemented without dynamically managed linked lists by creating a new field, next, in each PCB, which points to the next PCB on the same list. Each entry of the RL then points to the first PCB on the list. Assume that RL contains 3 processes at level 5 and 1 process at level 0. Draw a diagram showing the RL and the modified PCBs.
c++
In a printing queue, there are a few documents that are still waiting to be printed. To get the documents running, the person in charge of printing executes a series of random activities. Which type of scheduling is best for the aforementioned circumstance, and why?
In §12.2 Lamport's Hash we mentioned the notion of using only 64 bits of the hash. At each stage, 128 bits are computed, 64 bits are thrown away, and the hash of the retained 64 bits is used in the next stage. The purpose of only using 64 bits is so that a human does not need to type as long a string. Assuming the person will still only type 64 bits, does it work if hashn does a hash of all 128 bits of hashn-1, but what the person actually transmits is 64 bits of the result?
Multi-tasking can not be achieved with a single processor machine. True False 2. Async/Await is best for network bound operations while multi-threading and parallel programming is best for CPU-bound operations. True False 3. The following is a characteristic of an async method:The name of an async method, by convention, ends with an "Async" suffix. True False 4. Using asynchronous code for network bound operations can speed up the time needed to contact the server and get the data back. True False 5. Asynchronous programming has been there for a long time but has tremendously been improved by the simplified approach of async programming in C# 5 through the introduction of: The Task class True False
Imagine a database that is structured like a tree with its roots at the top. Imagine for a moment that we decided to add a fake vertex in between each pair of existing vertices. Demonstrate that adhering to the tree protocol on the new tree yields superior concurrent results to adhering to the tree protocol on the initial tree.

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