Câu 27: EC0-350: ECCouncil Certified Ethical Hacker v8

A Security Engineer at a medium-sized accounting firm has been tasked with discovering how much information can be obtained from the firm's public facing web servers. The engineer decides to start by using netcat to port 80. The engineer receives this output:HTTP/1.1 200 OK -Server: Microsoft-IIS/6 -Expires: Tue, 17 Jan 2011 01:41:33 GMTDate: Mon, 16 Jan 2011 01:41:33 GMTContent-Type: text/html -Accept-Ranges: bytes -Last-Modified: Wed, 28 Dec 2010 15:32:21 GMTETag: "b0aac0542e25c31:89d"Content-Length: 7369 -Which of the following is an example of what the engineer performed?

1. A. Cross-site scripting
2. B. Banner grabbing — đáp án hiện tại
3. C. SQL injection
4. D. Whois database query