Exam 5: Port Scanning

If an attacker decides to implement a less obvious port-scan,or stealth attack,which of the following techniques would be appropriate to make their activities more difficult to detect?

Closed ports respond to a NULL scan with what type of packet?

Nmap has a GUI front end that makes it easier to work with some of the complex options by providing a GUI.Which of the following is the Nmap GUI front end?

What advanced port-scanning tool can allow a security tester to bypass filtering devices by injecting crafted or otherwise modified IP-packets into a network?

When writing a script which statement allows you to avoid creating an endless loop in your script?

An open port allows access to specific applications and cannot be vulnerable to attack.

When a TCP three-way handshake ends,both parties send what type of packet to end the connection?

When using the text editor vim what command appends text after the insertion point?

What type of port scan has the FIN,PSH,and URG flags set?

In a Linux script,which of the lines is important because it identifies the file as a script?