Which the HTTP method represents a request for information about the supported methods on an HTTP server？（）
第1题：
The standard server port number for HTTP is which of the following?HTTP协议的标准端口是以下哪一个？（）
第2题：
Which the basic authentication type is optional for a J2EE 1.4 compliant web container？（）
第3题：
A. It prevents the HTTP client or server from timing-out during an antivirus update
B. It prevents the HTTP client or server from timing-out during antivirus scanning.
C. It is an attack.
D. It is used to bypass antivirus scanners.
第4题：
When IP multicast is enabled via PIM, which mode uses the flood and prune metho d? Select the best response.（）
第5题：
Which interface must a class implement so that instances of the class are notified after any object is addedto a session？（）
第6题：
Which two classes or interfaces provide a getSession method？（）
第7题：
Which interface must a class implement to be informed of a session creation event？（）
第8题：
A. PIM sparse - dense
B. Bidir - PIM
C. PIM - RP
D. PIM - DM
E. PIM - SM
第9题：
Which of the following describes a secure connection over the Internet between two sites?（）
第10题：
Which of the following ports is the default for HTTP?（）