# Attackers Techniques Julie has been hired to perform a penetration test on xyz.com. She begins by looking at IP address ranges owned by the company and details of domain name registration. She then goes to news groups and financial websites to see whether any of the company’s sensitive information or technical details are online. What is Julie doing? > Passive Information Gathering Which of the following is the most reliable type of scan? > Connect If you send a SYN to an open port what is the correct response? > SYN/ACK Trying to identify machines on a target network is called? > Enumeration From a port scanning you identified that port 88 is open. What does this tell you? > The target system uses Kerberos authentication --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://wiki.zacheller.dev/network-security/courses/isci-cnss-course/attackers-techniques.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.