Recall & Review
beginner
What is port scanning in networking?
Port scanning is a method used to check which ports on a computer or server are open and listening for connections. It helps find services running on those ports.
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beginner
What does an open port indicate?
An open port means a program or service is ready to accept connections on that port. It can be used to communicate or transfer data.
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beginner
Which bash tool is commonly used for port scanning?
The tool 'nc' (netcat) is often used in bash scripts to scan ports by trying to connect to them.
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beginner
What does a closed port mean during a scan?
A closed port means no service is listening on that port, so connection attempts will fail or be refused.
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beginner
Why should you be careful when performing port scans?
Port scanning can be seen as suspicious or intrusive by network owners. Always have permission before scanning to avoid legal or ethical issues.
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What does port scanning help you discover?
✗ Incorrect
Port scanning checks which ports are open and listening on a target machine.
Which bash command is commonly used for simple port scanning?
✗ Incorrect
'nc' or netcat can connect to ports to check if they are open.
What does an open port mean?
✗ Incorrect
An open port means a service is listening on that port.
What should you do before scanning someone else's network?
✗ Incorrect
Always get permission to avoid legal or ethical problems.
If a port scan shows a port is closed, what does it mean?
✗ Incorrect
A closed port means no service is listening there.
Explain in simple terms what port scanning is and why it is useful.
Think about checking which doors (ports) are open in a building (computer).
You got /3 concepts.
Describe a basic way to scan ports using bash scripting.
Imagine knocking on doors to see if someone answers.
You got /3 concepts.