單項選擇題

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?（）

A.
B.
C.
D.

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You have recently completed the creation of a new application.
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單項選擇題

Certkiller .com has asked you to create a file management application to monitor the hosts file.
Certkiller .com has instructed you to change the hosts file if it has been changed.
You, therefore, need to display the size and whether the hosts file is set to read-only.
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