Network Scanning Concepts Quiz
Test your knowledge of key network scanning concepts and techniques.
Which of the following best describes network scanning?
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Identifying active devices and open ports on a network
Encrypting network traffic
Blocking unauthorized access
Configuring wireless access points
Which tools are commonly used for network scanning? (Select all that apply)
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Nmap
Wireshark
Netcat
Photoshop
Other
Match the scanning type to its description:
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Rows
Description
Half-open scan that sends SYN packets
SYN scan
UDP scan
Ping scan
Xmas scan
Sends ICMP echo requests to check host availability
SYN scan
UDP scan
Ping scan
Xmas scan
Sends TCP packets with FIN, URG, and PSH flags set
SYN scan
UDP scan
Ping scan
Xmas scan
Scans for open UDP ports
SYN scan
UDP scan
Ping scan
Xmas scan
Which port is typically used by HTTP?
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21
22
80
443
Why might a network administrator use a stealth scan?
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To avoid detection by intrusion detection systems
To increase scanning speed
To encrypt data
To block ports
Select all protocols that can be scanned using network scanning tools:
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TCP
UDP
ICMP
SMTP
Other
Rate your confidence in interpreting Nmap scan results:
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1
2
3
4
5
What is the primary risk of performing unauthorized network scanning?
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Legal consequences and network disruption
Faster network speeds
Improved security automatically
Lower hardware costs
Which scan type is most likely to be detected by firewalls?
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Full connect (TCP connect) scan
SYN scan
Xmas scan
NULL scan
Briefly explain the difference between a port scan and a vulnerability scan.
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