Network Scanning Quiz

According to the module objectives, what is the primary goal of network scanning?

• To gain administrative access to a server.

• To identify live hosts, open ports, and services on a network.

• To launch a Denial-of-Service (DoS) attack.

• To encrypt network traffic.

Which TCP flag is used to initiate a connection between two hosts as part of the three-way handshake?

• ACK

• FIN

• RST

• SYN

In the TCP communication process, what is the purpose of the RST flag?

• To acknowledge the receipt of a packet.

• To initiate a new connection.

• To reset or terminate a connection abruptly.

• To indicate the end of data transmission.

What is the correct sequence of packets in a successful TCP three-way handshake?

• SYN -> ACK -> SYN-ACK

• SYN -> SYN-ACK -> ACK

• FIN -> FIN-ACK -> ACK

• SYN -> RST -> ACK

Attackers use packet crafting tools like Colasoft Packet Builder to create fragmented packets for what primary purpose?

• To increase the speed of the network.

• To create backups of network configurations.

• To bypass firewalls and Intrusion Detection Systems (IDS).

• To test the physical network cabling.

Why are traditional network scanning techniques considered computationally less feasible on IPv6 networks?

• IPv6 packets cannot be fragmented.

• All IPv6 traffic is encrypted by default.

• The vastly larger address space (2^64 hosts per subnet) makes brute-force scanning impractical.

• Most scanning tools do not support the IPv6 header format.

Which popular command-line tool is used for network discovery and security auditing, with capabilities for host discovery, port scanning, and OS detection?

• Wireshark

• Nmap

• Netcat

• Hping3

An attacker wants to perform a scan that completes the three-way handshake, making it easily detectable but reliable. Which Nmap scan type should they use?

• TCP SYN Scan (-sS)

• TCP Connect Scan (-sT)

• UDP Scan (-sU)

• Xmas Scan (-sX)

Which tool is described as a command-line packet crafting tool that can be used for firewall testing, remote OS fingerprinting, and advanced traceroute?

• Nmap

• Zenmap

• Hping2 / Hping3

• NetScanTools Pro

Which Hping3 command would be used to perform an ICMP ping?

• hping3 -A [target]

• hping3 -S [target]

• hping3 -2 [target]

• hping3 -1 [target]