Analyze the illustrations below. Then, answer the following items. Search for related literature and/or relative studies that would support your answers. Cite your references accordingly. Progress of Q Release A P and Q want A A Required Release B Get A 3 Deadlock inevitable В P and Q Required want B 5 Get B 4 6. Get A Progress of P Get B Release A Release B 2 = Both P and Q want resource A A = Both P and Q want resource B Required B Required = Deadlock-inevitable region Possible progress path of P and Q. Horizontal portion of path indicates P is executing and Q is waiting. Vertical portion of path indicates Q is executing and P is waiting. 1. Describe the deadlock scenario illustrated above based on your understanding. 2. What do you think would happen if both Process P and Q need to get the same resource? 3. Which concurrency mechanism would you suggest that might prevent the deadlock situation above? Rationalize your answer. 4. Define in detail the Execution Paths 2 to 6. Example: Execution Path 1- Process Q acquires Resource B and then Resource A. Process Q then releases Resource B and A, respectively. 5. Do Execution Paths 3 and 4 encompass the first three conditions for a deadlock to occur? Explain vour

Analyze the illustrations below. Then, answer the following items. Search for related literature and/or relative studies that would support your answers. Cite your references accordingly. Progress of Q Release A P and Q want A A Required Release B Get A 3 Deadlock inevitable В P and Q Required want B 5 Get B 4 6. Get A Progress of P Get B Release A Release B 2 = Both P and Q want resource A A = Both P and Q want resource B Required B Required = Deadlock-inevitable region Possible progress path of P and Q. Horizontal portion of path indicates P is executing and Q is waiting. Vertical portion of path indicates Q is executing and P is waiting. 1. Describe the deadlock scenario illustrated above based on your understanding. 2. What do you think would happen if both Process P and Q need to get the same resource? 3. Which concurrency mechanism would you suggest that might prevent the deadlock situation above? Rationalize your answer. 4. Define in detail the Execution Paths 2 to 6. Example: Execution Path 1- Process Q acquires Resource B and then Resource A. Process Q then releases Resource B and A, respectively. 5. Do Execution Paths 3 and 4 encompass the first three conditions for a deadlock to occur? Explain vour

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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ANSWER ALL THE QUESTION IF YOU KNOW THE CORRECT SOLUTION OTHERWISE LEAVE IT DO NOT USE CHATGPT OTHERWISE IT WILL DOWNVOTE 4. Which one of the following correct options: A. Lifecycle methods will not run when a component is modified and altered. B. Lifecycle methods in react JS is for the entire project rather than for each component. C. React contained both controlled and uncontrolled components. D. A and C. 5. Alice uses a digital signature(DS) to communicate with Bob for authentication and integrity. Bob claims to have received a message in clear text, "Transfer $1432 to Peter," with a valid digital signature from Alice. Alice denies sending the message. The digital signature proves that Alice must have created the message. Select the correct Option: A. True B. False 6. What will be the return value of function call foo (n, n) for the following recursive function foo ()? Assume that the variable n is initialized to 4 before function call. int foo(int& p, int q) { int I = 9;…
Make a Deployment Diagram and ERD of following systemOur app is Smart Counselling Assistant MediumWhich have aAdmin:Admin can check all the activities can do any thing can remove counselor.Admin can conduct test for CounselorUser:There will be a free platform where a user can his problem and Counselor can comment for the solution.Also a user can directly hire Counselor for paid Counseling.User can give the reviews to the counselor after getting Counselling.User can chat with counselorCounselor:Counselor can comment on the post of user on platform.And offer a user for paid service.There will be a payment method in our System
need help explaining each and every line of the code functionality ========================================================== import React, { useEffect, useContext, useState } from "react"; import { AppContext } from "../../context/applicationContext"; import LoadingIndicator from "../../components/LoadingIndicator"; // import the API from apiUtil.js import { getOthersFeedsApi } from "../../util/ApiUtil"; import MyProfile from "../../components/MyProfile"; import AddFeed from "../../components/AddFeed"; import InfiniteScroll from "react-infinite-scroll-component"; import FeedCard from "../../components/FeedCard"; const Dashboard = () => { // name spacing for the child component using UseContext hook const appContext = useContext(AppContext); // access the token which is present inside our cookies const token = appContext.getSession(); // access the user data by calling getUserData() function from AppContext const userData = appContext.getUserData(); // all the…
Note : Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and specify the other subparts (up to 3) you’d like answered When a component is reused efficiency is increased as much of the component is already completed, consistency is increased as control and scalability is enhanced on it, testing is reduced as components are already tested, etc. Step 2 a) Three components to be reused can be : Tab control Dialog control Calendar control Other parts maybe of login registration page b) Tab control : For flexible navigation a customized tab control can always be reused in different applications. This will increase efficiency . Dialog control : To manage some kind of action when one exit app or switch between different sections can be reused. Calendar control : This is almost a part of multiple applications and one may use it for interaction with dates. User selects single or multiple dates. A customized component can be reused…
Objective: Write a program in Python using wrapper API to get weather information. Step 1.1: Get PyOWM API key Follow these steps to get a weather info API key from Open Weather Map.org: Go to openweathermap.org/appid Under “Sign up and call API for free”, click “Sign up” Register. Click “Create an Account”. Remember your login and password. They may send a confirmation link to the email you used to register. Use it to confirm. Go to “API keys”. Copy key from gray box into a text file and save it for later. You will insert the key into the provided Python code that accesses the API. Step 1.2. Install PyOWM module on your computer Follow these steps to install PyOWM module on your computer: Start your terminal (Windows users start WSL terminal or Windows Console). Type pip3 install pyowm (the module should install). Step 1.3: Download, Add Code, and Test interactive App You should use the starter app weather.py. It includes a predefined function getweather() that…
Can someone take a look at my login and signup and tell me if I'm on the right track or doing this completely wrong, please. For context, I'm working on pythonanywhere and using flask. @app.route('/login') def login(): email = request.form.get("email") password = request.form.get("password") table = get_table("Users") item = table.get_item(Key={"email":email}) if 'Item' not in item: return {'result': 'Email not found.'} user = item['Item'] if password != user['password']: return {'result' : "Password does not match."} session["email"] = user["email"] session["username"] = user["username"] result = {'result' : 'OK'} response = make_response(result) remember = request.form.get("remember") if remember == "no": response.set_cookie("remember", "") else: key = str(uuid.uuid4()) table = get_table("Remember") table.put_item(Item={"key": key, "email": user["email"]})…
Assume that your company uses a release methodology for its sales system. The current version is 5.5. Decide whether each of the following changes would justify a version 6.0 release, or be included in a version 5.6 update: (a) Add a new report, (b) add a web interface, (c) add data validation checks, (d) add an interface to the marketing system, and (e) change the user interface.
Matching Drag the letter from the list on the right to its matching term in the list on the left. When you are finished, click Done. Input message Invalid data .xltx Data validation Template Red ellipse VBA Version history Comment Shared workbook The process of matching data with specifications as the data is entered A data validation comment box that appears in an active cell before an entry is made Without this, individual copies of a shared workbook cannot be combined This marks invalid data in a range with validation settings. Programming language that expands the abilities of Excel Data that does not conform to the validation criteria An element in a threaded conversation in a workbook A sample workbook
1. Create an npm project and install express.js2. Create an express.js app which funnels the requests through 2 middlewarefunctions that log something to the console and return one response.3. Handle the requests to "/" and "/users" such that each request onlyhas one handler /middleware tht does something with it(eg send any dummy response)
Write a report on Linux on mobile phones. Report must cover the following: Introduction to embedded Linux, How Linux is being used on mobile phones, what phones are using Linux, what modifications have been projects for mobile phones. Note: Reports should be at least 5‐7 pages. Your report must include diagrams and cite references. Failing to cite references will lead to loss of marks DO NOT COPY DIRECTLY FROM SOURCE BUT WRITE IN YOUR OWN WORDS
Given the below three scenarios, you’re required to create one Test Suite containing 3 Test casesand one separate test case for each scenario, where you should add the suitable test scripts thatcan confirm the success of these scenarios using Robot Framework. Deliverables One folder containing one TestSuite.robot file.Scenario 1: Verify user can search for a movie on the IMDb homepage● Given that the user is on the IMDb homepage "https://www.imdb.com/"● When the user enters a search query "The Shawshank Redemption" (or any other moviename) in the search bar.● And clicks the search button● Then the search results page should display movies related to the search query.● And the first search result should be "The Shawshank Redemption" movie i.e. the namewritten in the search query. Scenario 2: Verify user can access the top-rated movies section● Given that the user is on the IMDb homepage "https://www.imdb.com/".● When the user clicks on the "Top 250 Movies" link in the header.● Then the…
#Assignment: Draft a detailed System Test Plan for Facebook Must include your testing strategy in detail. You must present test cases for these modules: Login Page, Photos, Messages, Friends, Wall, News Feed, Integration with a Game and logout functionality. #Note; please Avoid Plagrisiam - please don't copy and paste another Chegg export