Suppose a system can keep 3 pages in memory at a time but uses virtual memory with the LRU Policy. Assume no pages are initially loaded. The following sequence of requests is made: 1, 2, 3, 4, 1, 2, 5, 3

An OS has 64 pages each that is 1024 bytes. What is the best description of this situation.

The best metaphor for virtual memory is ___________

What are the disadvantages (bad results) of virtual memory? 

Suppose I have the following bookshelf and I wanted to insert the new book into it.

The best-fit algorithm would say that I would put a book in…

The problem of memory management is most similar to what CMPT 334 unit:

Suppose a system can keep 3 pages in memory at a time but uses virtual memory with the Least Recently Used page algorithm. Assume no pages are initially loaded. The following sequence of requests is made: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10

My program only runs at memory address 433 to remind me of the GPA I wish I had. If it was run at any memory location it wouldn’t work. This code is an example of …

Written 2: Obligatory Synchronization and Multithreading Programming Questions (27 marks)

Suppose the Memory Management Unit stores records of each processes' base and limit value per Unit 5A. These structures are stored in three different queues: an OS process queue, a high priority queue, and a low priority queue.

Write pseudocode to find the average allocated memory of all processes. Pseudocode is fine as well as using shorthand like "<insert all relevant headers>" or changing functions to be easier to deal with.

You may assume the following struct is used or develop your own: 

   node* next; //A link to the next node

Part b 9 marks)

The nuclear reactor that powers Wombat OS' machine learning core has three processes that manages its runtime. You are asked to ensure that process 1 runs its statement 1 (e.g., initialize the reactor) first, then process 2 runs statement 2 (e.g., fill the reactor with water), then process 3 run statement 3 (e.g., run the reactor) using synchronization tools. Any out of sequence running of these statements would result in an explosion (e.g., Statement 3 runs before Statement 1).  No justification for your code is necessary but it may help for marking. Pseudocode is fine as well as notation like

Written 1: Organizing Stores (18 marks)

From the Salvation Army website: Salvation Army food banks provide non-perishable and fresh food (when available) to anyone experiencing food shortage. This assistance often starts a conversation around getting more comprehensive support from one our many community programs and services.

A major question is how to decide who gets food first based on issues such as employment or whether they are from the food bank's region. Suppose that there is a group of people queued up for meals and the food bank's manager must decide who to serve first.

a 3 marks) Fill in the blank, this is an example of... Suggested Length: 2-3 Words.