SCDCD(310-081)单项选择题每日一练(2019.01.21)

单项选择题
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
单项选择题
What is the result（）？
A. The program runs and prints “ I = 1 ， j = 0”
B. The program runs and prints “ I = 1 ， j = 4”
C. The program runs and prints “ I = 3 ， j = 4”
D. The program runs and prints “ I = 3 ， j = 0”
E. An error at line 4 cause compilation to fail.
F. An error at line 7 cause compilation to fail.
单项选择题
Which HTTP method has the characteristic that multiple indential requests may produce side effect beyond those of a single request（）？
A. PUT
B. GET
C. INFO
D. POST
E. HEAD
F. TRACE
单项选择题
Assuming the tag library in the exhibit is imported with the prefix forum， which custom tag invocation produces a translation error in a JSP page？（）
A.A
B.B
C.C
D.D
E.E
单项选择题
Given an EL function foo， in namespace func， that requires a long as a parameter and returns a Map， which two are valid invocations of function foo？（）
A. ${func（1）}
B. ${foo：func（4）}
C. ${func：foo（2）}
D. ${foo（5）：func}
E. ${func：foo（“easy”）}
F. ${func：foo（“3”）.name}