單項(xiàng)選擇題

Which the basic authentication type is optional for a J2EE 1.4 compliant web container？（）

A. HTTP Basic Authentication
B. Form Based Authentication
C. HTTP Digest Authentication
D. HTTPS Client Authentication

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單項(xiàng)選擇題

When adding a element to a web application deployment descriptor， the inclusion of which sub-element requires the definition of an error page（）？

A. <realm-name>
B. <auth-metod>
C. <auth-constraint>
D. <form-login-config>
E. <user-data-constaint>

單項(xiàng)選擇題

Which security mechanism can be directed through the element in a web deployment descriptor（）？

A. authorization
B. data integrity
C. confidentiality
D. authentication