单项选择题 You are in the process of creating a new application. This new application has to be able to read all data from a text file. What should you do?（）

单项选择题 You are currently in the process of creating an application that reads binary information from a file. You need to ensure that the only the first kilobyte of data is retrieved. What should you do?（）

单项选择题 You have recently completed the creation of a new application. Certkiller .com requires you to ensure that this new application creates a file that contains an array of bytes. What should you do?（）