Given the following code: Which of the following tasks could be accomplished with the script?

The correct answer is D. Port scan. A port scanning script typically uses socket programming to attempt TCP connections (or send probes) to a range of port numbers on a target host. In Python, this commonly involves a loop over port numbers, creating a socket, calling connect() or connect_ex(), and checking…

Information Gathering and Vulnerability Scanning

Question

Given the following code:

Which of the following tasks could be accomplished with the script?

Options

AReverse shell
BPing sweep
CFile download
DPort scan

How the community answered

(35 responses)

A
17% (6)
B
9% (3)
C
3% (1)
D
71% (25)

Explanation

A port scanning script typically uses socket programming to attempt TCP connections (or send probes) to a range of port numbers on a target host. In Python, this commonly involves a loop over port numbers, creating a socket, calling connect() or connect_ex(), and checking whether the connection succeeds or fails. If it succeeds, the port is open; if it fails/times out, the port is closed or filtered. This is fundamentally different from a reverse shell (which opens a persistent connection and redirects stdin/stdout), a ping sweep (which uses ICMP across multiple hosts), or a file download (which uses HTTP/FTP protocols to retrieve data). The pattern of iterating ports and testing connectivity is the signature of a port scanner.

Topics

#Port scanning#Script analysis#Network reconnaissance#Information gathering

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