When is a good time to use the HTTP POST method? There are more than one correct answer! O When the request is for a page that gets data from a database server O When the request can be executed multiple times without causing any problems O When the request is for a page that writes data to a database server O When executing the request multiple times may cause problems O When you don't want to include the parameters in the URL for security reasons O When you don't want users to be able to include parameters when they bookmark a page O When you need to transfer more than 4KB of data

When is a good time to use the HTTP POST method? There are more than one correct answer! O When the request is for a page that gets data from a database server O When the request can be executed multiple times without causing any problems O When the request is for a page that writes data to a database server O When executing the request multiple times may cause problems O When you don't want to include the parameters in the URL for security reasons O When you don't want users to be able to include parameters when they bookmark a page O When you need to transfer more than 4KB of data

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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Lab 02: Splitting a URL into pieces URLS are composed of five pieces: The scheme, also known as the protocol The authority (may further be divided into the user info, the host, and the port) The path The fragment identifier, also known as the section or ref The query string Read-only access to these parts of a URL is provided by nine public methods: getFile(), getHost(), getPort(), getProtocol(), getRef(), getQuery(), getPath(), getUserinfo(), and getAuthority(). Write a Java program which uses these methods to split URLS entered on the command line into their component parts.
response page checks username and password against arrays of valid usernames and passwords (normally this is done against a database - we'll change it later) If valid - saves username to cookie, and sets session variable LoggedIn to TRUE. If not, sets the session variable to FALSE. Displays link to "content page" (the page you're protecting). Created with Mi Notes
In PHP, $_SESSION is a predefined array that is used to: 1- Store the request data coming from web browser automatically. 2- Store data that can be used in the other pages until the user logs out from the website. 3- Store data temporarily until the fulfilment of the request. 4- Store data permanently in the Web Server.
Exercise 2-2 Enhance the Future Value application In this exercise, you’ll enhance the Future Value application by applying some of the skills that you’ve just learned. Test the Future Value application 1. Make sure the Apache server is running. Then, start your browser and run the application in this directory: xampp\htdocs\ex_starts\ch02_ex2 To do that, you can use the index of exercise starts that you bookmarked in exercise 1-2 or you can use this URL: http://localhost/ex_starts/ch02_ex2/ 2. Enter valid numbers in all three text boxes. For the first test run, keep these values simple like 100 for investment amount, 5 for yearly interest rate, and 10 for number of years. Then, click the Calculate button to display the results. 3. Click the Back button to return to the first page, enter invalid values in the first two text boxes, and click the Calculate button. Then, respond to the error message that’s displayed by entering valid data for the investment amount, re-entering…
Draw a diagram illustrating the structure of an HTTP request. Provide a detailed explanation for each component within the request, encompassing methods, headers, the endpoint, and the body.
QUESTION 22 The session_start () function in PHP does the following: DA. starts a session automatically OB. looks for a PHPSESSID cookie on the user's hard drive first DC. starts a session if there is no PHPSESSID cookie D. automatically creates a PHPSESSID first E. writes the session variables on the user's hard drive F. creates a PHPSESSID if there isn't one and writes it as a cookie on the user's hard drive G. reads the PHPSESSID cookie value if there is already a session started QUESTION 23 Session data: A. is stored on the users hard drive only OB. is stored on the servers hard drive C. is available until the user closes the browser D. b and c QUESTION 24 the session_start() function in php does the following: A starts a session automatically first thing B. looks for a PHPSESSID cookie on the users hard drive first C. starts a session if there is no PHPSESSID cookie on the users hard drive D. creates a value for the PHPSESSID first E. writes the session variables on the users hard…
PHP, MYSGL The company "Visitors" wants a website for a guestbook. They want the guestbook to work so that you can create and delete posts in it.The guestbook must contain the entries who made the post (name or alias),The post (the text written) anddate and time when the post took place.The created posts must be stored in a text file in serialized form.NOTE! You do not need to be able to update these posts, it is enough that you can create new ones and delete any post. Your solution should be object-oriented with PHP and be able to store / read all information against a serialized file on your server.The features to be implemented in your solution on the guestbook website should be: possibility to create and delete posts in the guestbookInformation that should be in each record should be:username / signature, post, date + time of created postExamples of entries in the file:The silver surfer, In the sea are the biggest fish, 2018-01-17 22:41:55Falo, 100 small mice built a nest in a…
Using PHP Write a program using PHP programming language that trads the user name and password from a login form Login.html Login.php And then writes them in a text file(logon.txt) Also store them in a Access database.
Write a php page(login.php) that reads a user ame and a password. When the user presses the login button, the username and password will be stored in an ACCESS database. Also the username and password will be stored in a text file named: logos.txt
I need help with the part below and please add comments in the code to help me understand better what I am doing wrong in my own code. I have already created my database and the connection and some of the code but am stuck on these parts."Home" and "Create Account" pages The index.php file will ask the user to log in to the system with a login form If they're already logged in, the home page will NOT show the login form. It will show a "welcome to our store" type of message instead even if they click on the "home" button in the navigation. The create-account.php page has them fill out a form for creating an account. Use real-time JavaScript validation (and regex) to: Verify that the password and "verify password" match as they are typing. Verify that the password contains at least one number and is at least 8 characters long Be sure to display user feedback messages on the screen as they type, e.g.: Password must contain a number Password must be 8 characters long Password and…
Write a PHP code for the following: Web application first page: File name is data_entry.php Has text entry fields for the following: Name Date of Birth Has a submit button that, when clicked, stores the Name in a cookie and the date of birth in the session information Name entry field display information as stored in the cookie Date of Birth entry field displays stored session information Has a link to the application second page Web application second page: File name is data_display.php Has display fields that: Display the name as stored in a cookie Display the date of birth as stored in the session Has a link back to the application first page
MCQ: Which class waits for requests to come from the clients. It performs some operation based on that request, and then possibly returns a result to the client? DatagramSocket class ServerSocket class DatagramPacket class Socket class