Which of the following statement holds true for TCP Operation?

In the process of hacking a web application, attackers manipulate the HTTP requests to subvert the application authorization schemes by modifying input fields that relate to the user ID, username, access group, cost, file names, file identifiers, etc. They first access the web application using a low privileged account and then escalate privileges to access protected resources. What attack has been carried out?
Which of the following reports provides a summary of the complete pen testing process, its outcomes, and recommendations?
Vulnerability assessment is an examination of the ability of a system or application, including current security procedures and controls, to withstand assault. It recognizes, measures, and classifies security vulnerabilities in a computer system, network, and communication channels.
A vulnerability assessment is used to identify weaknesses that could be exploited and predict the effectiveness of additional security measures in protecting information resources from attack.

Which of the following vulnerability assessment technique is used to test the web server infrastructure for any misconfiguration and outdated content?
An automated electronic mail message from a mail system which indicates that the user does not exist on that server is called as?
Due to illegal inputs, various types of TCP stacks respond in a different manner. Some IDSs do not take into account the TCP protocol's urgency feature, which could allow testers to evade the IDS.

Penetration tester needs to try different combinations of TCP flags (e.g. none, SYN/FIN, SYN/RST, SYN/FIN/ACK, SYN/RST/ACK, and All Flags) to test the IDS.
Which of the following TCP flag combinations combines the problem of initiation, midstream, and termination flags with the PSH and URG?
Identify the data security measure which defines a principle or state that ensures that an action or transaction cannot be denied.
Black-box testing is a method of software testing that examines the functionality of an application (e.g. what the software does) without peering into its internal structures or
workings. Black-box testing is used to detect issues in SQL statements and to detect SQL injection vulnerabilities.

Most commonly, SQL injection vulnerabilities are a result of coding vulnerabilities during the Implementation/Development phase and will likely require code changes.
Pen testers need to perform this testing during the development phase to find and fix the SQL injection vulnerability.
What can a pen tester do to detect input sanitization issues?