Why is A petty cash fund generally established?

Question 1: (80 marks) Foreigner guide software is responsible for viewing and recommending various places. In the process of designing and developing such software you as part of the development team are required to Phase 1 (50 marks) Implement a RESTful Web Service with appropriate annotations to add locations of restaurant, hotel, museum, etc. to be used later in the software. The places' data associated with a specific place type are saved in a Jason Array of place objects in a file named after the place type. Each place object contains the following data: place_name, place_type, latitude, longtitude. Provide an example of the URL that could be used to access the Web service given that the site is http://ForeignerGuide_site.com Phase 2:(20 marks) Implement Caeser Cipher to encrypt the sent data using a predetermined key, initialized to be the last digit of your id, at the client of the service and decrypt the received data before saving Phase 3:(10 marks) Suggest a cloud infrastructure design for the complete system that takes high availability into consideration with a detailed description of each used component