第8题: [单项选择]下列各项中,属于文本运算符的是()。 A. : B. & C. * D. = 参考答案:B 答案解析:文本运算符使用"&"(和号)将两个或更多文本字符串连接起来,以产生一串文本。
第9题: [多项选择]What are two TCP flag settings that are considered suspicious? ()(Choose two.) A. Do-Not-Fragment flag is set. B. Both SYN and FIN flags are set. C. Both ACK and PSH flags are set. D. FIN flag is set and ACK flag is not set. 参考答案:B,D