CyberSec First Responder CFR-210 Logical Operations Study Notes

Logical Operations CyberSec First Responder Questions and Answers

Question 9

A DMZ web server has been compromised. During the log review, the incident responder wants to parse all common internal Class A addresses from the log. Which of the following commands should the responder use to accomplish this?

Options:

grep –x”(10.[0-9]+.[0-9]+.[0-9]+)” etc/rc.d/apache2/access.log | output.txt

grep –x”(192.168.[0.9]+[0-9])” bin/apache2/access.log | output.txt

grep –v”(10.[0-9]+.[0-9]+.[0-9]+)” /var/log/apache2/access.log > output.txt

grep –v”(192.168.[0.9]+[0-9]+)” /var/log/apache2/access.log > output.txt

Question 10

Network engineering has reported low bandwidth during working hours. The incident response team is currently investigating several anomalous activities that may be related. Which of the following is the MOST appropriate method to further investigate this problem?

Options:

Collecting and analyzing computer logs

Imaging hard disk drives of computers on the network

Capturing network traffic and packet analysis

Penetration testing and port scanning

Question 11

An organization’s firewall has recently been bombarded with an excessive amount of failed requests. A security analyst has been tasked with providing metrics on any failed attempts to ports above 1000. Which of the following regular expressions will work BEST to identify an IP address with the desired port range?

Options:

/\b^(?\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}):({4,5}\d+)\b/

/\b^(?\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}):([4]\D+)\b/

/\b^(?\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}):([4]\d+)\b/

/\b^(?\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}):(\d{1,5})\b/

Question 12

Which of the following technologies is used as mitigation to XSS attacks?

Options:

Intrusion prevention

Proxy filtering

Web application firewall

Intrusion detection

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CyberSec First Responder CFR-210 Logical Operations Study Notes

Logical Operations CyberSec First Responder Questions and Answers

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