Practical Cyber Hacking Skills for Beginners - Host Discovery Controls - Part 2

The video tutorial covers various network scanning techniques using nmap, focusing on overcoming firewall restrictions. It explains the use of TCP SYN and ACK pings, port targeting, and verbosity levels to gather more information about network hosts. The tutorial also introduces random target scanning for broader network analysis.

What is a potential issue with traditional ping scans?

• They are not compatible with Nmap.

• They can be blocked by firewalls.

• They provide too much information.

• They are too fast.

What is the purpose of using the minus PS option in Nmap?

• To increase verbosity.

• To skip host discovery.

• To conduct a TCP SYN ping.

• To perform a full port scan.

How does Nmap determine if a host is active using TCP SYN ping?

• By using ICMP echo requests.

• By sending a full data packet.

• By sending an empty TCP packet with the SYN flag.

• By completing the three-way handshake.

What does increasing the verbosity level in Nmap do?

• It changes the scan type.

• It skips closed ports.

• It reduces the scan time.

• It provides more detailed information.

What is the default verbosity level in Nmap?

• Level 4

• Level -4

• Level 0

• Level 1

How does the TCP ACK ping differ from the TCP SYN ping?

• It sends a SYN packet first.

• It uses ICMP requests.

• It requires a full handshake.

• It sends an ACK packet directly.

Why might firewalls struggle to detect TCP ACK pings?

• They do not use SYN flags.

• They mimic normal traffic.

• They use encrypted packets.

• They are too fast.

What is the purpose of using the minus IR option in Nmap?

• To scan a specific IP address.

• To perform a full port scan.

• To scan random targets.

• To increase verbosity.

Which option is used for scanning UDP ports in Nmap?

• PU

• PR

• PS

• PA

What is a potential use of random target scanning?

• To scan a known network.

• To test Nmap commands.

• To increase scan speed.

• To find specific vulnerabilities.