Scanning Networks

What is the purpose of network scanning in ethical hacking?

• Gaining unauthorized access to target systems

• Identifying vulnerabilities in network devices

• Conducting social engineering attacks on network users

• Performing denial-of-service attacks on target networks

Which of the following scanning techniques sends TCP SYN packets to determine open ports on a target system?

• Ping sweep

• ACK scan

• SYN scan

• Xmas scan

Which scanning technique involves sending ICMP Echo Request packets to identify live hosts on a network?

• Xmas scan

• FIN scan

• Ping sweep

• TCP Connect scan

What is the purpose of OS fingerprinting during network scanning?

• Identifying the operating system running on a target system

• Enumerating open ports and services on a target system

• Gathering information about the target organization's employees

• Exploiting vulnerabilities in network protocols

Which scanning technique allows for stealthy scanning by exploiting the way some firewalls handle fragmented IP packets?

• ACK scan

• Xmas scan

• FIN scan

• Idle scan

Which port scanning technique sends a TCP RST packet to determine if a specific port is open or closed on a target system?

• NULL scan

• UDP scan

• TCP Connect scan

• RST scan

Which scanning technique is used to identify open UDP ports on a target system?

• SYN scan

• FIN scan

• UDP scan

• Xmas scan

What is the purpose of banner grabbing during network scanning?

• Identifying the network topology of a target organization

• Gathering information about the target organization's competitors

• Enumerating open ports and services on a target system

• Exploiting vulnerabilities in web applications

Which scanning technique involves sending a TCP ACK packet to determine the state of a firewall or intrusion detection system?

• ACK scan

• Xmas scan

• SYN scan

• FIN scan

Which scanning technique relies on an idle host on a target network to send packets on behalf of the attacker?

• Xmas scan

• FIN scan

• Idle scan

• SYN scan