To read uploaded files in a servlet, the __________ method is commonly used.
- doGet()
- doPost()
- init()
- service()
To read uploaded files in a servlet, the doPost() method is commonly used.
The response header __________ is crucial for indicating a file download rather than display.
- Content-Type
- File-Disposition
- File-Type
- Response-Content
The response header Content-Disposition is crucial for indicating a file download rather than display.
For secure file uploads, validating the __________ and __________ of the file is essential.
- file name, content
- file name, size
- file type, content
- file type, size
For secure file uploads, it's essential to validate both the file type and content to ensure the uploaded file is safe and meets the required criteria.
To handle multiple file uploads, a servlet may use the __________ API.
- Java Authentication and Authorization Service (JAAS)
- Java Naming and Directory Interface (JNDI)
- JavaBeans Activation Framework (JAF)
- JavaMail
To handle multiple file uploads, a servlet may use the JavaBeans Activation Framework (JAF) API to work with various types of data, including files.
How can a servlet handle multipart/form-data requests for file uploading?
- request.getAttribute()
- request.getInputStream()
- request.getParameter()
- request.getPart()
To handle multipart/form-data requests for file uploading in servlets, the request.getPart() method is used to retrieve the uploaded file data.
In servlets, what is used to facilitate the reading of file data sent by a client?
- BufferedReader
- FileInputStream
- FileReader
- InputStreamReader
In servlets, the InputStream obtained using request.getInputStream() is commonly used to facilitate the reading of file data sent by a client.
What must be done to ensure the safe and correct download of files with different character encodings?
- Encode files as ASCII
- Set the character encoding in the response header
- Use a fixed character encoding
- Use the default character encoding
To ensure the safe and correct download of files with different character encodings, set the character encoding in the response header using response.setCharacterEncoding().
What are the security concerns to consider while implementing file upload in servlets?
- All of the above
- Checking file size
- Securing file storage location
- Validating file types
When implementing file upload in servlets, it's crucial to consider security concerns such as validating file types, checking file size, and securing the file storage location to prevent vulnerabilities.
To manage memory efficiently during file upload, using a __________ approach is recommended.
- buffering
- random access
- sequential
- streaming
To manage memory efficiently during file upload, a streaming approach is recommended, allowing the servlet to process the file in chunks rather than loading the entire file into memory.
A servlet is configured to allow only specific file types for upload. What strategies should be implemented to ensure this?
- Rely on the web browser for file type validation
- Use a third-party library for file type validation
- Validate file types on the client side
- Validate file types on the server side
Validating file types on the server side is a more secure approach to ensure that only specific file types are allowed for upload. Relying solely on client-side validation can be bypassed, so it's not recommended. Using a third-party library can also provide robust validation.