Which of the following commands can be used to search for all login attempts from a specific IP address in the /var/log/secure file in a CentOS-based Linux distribution?Question 16Answera.locate "sshd.*ip_address" /var/log/secureb.search "sshd.*ip_address" /var/log/securec.find /var/log/secure -name "sshd.*ip_address"d.grep "sshd.*ip_address" /var/log/secure

Which of the following commands can be used to search for a specific user's login attempts in the /var/log/secure file in a CentOS-based Linux distribution?Question 7Answera.locate username /var/log/secureb.find /var/log/secure -name usernamec.grep username /var/log/secured.search username /var/log/secure

Which of the following commands can be used to view the last ten successful and failed login attempts in an OpenSSH server on a Linux system?Question 18Answera.cat /var/log/secure | tail -10b.head -10 /var/log/securec.tail -10 /var/log/secured.cat /var/log/secure | head -10

You want to find the index where the substring "192.168.243.140" starts within the string contained in the variable ip_addresses.

Scenario: You are a security analyst working for a large corporation. You have been asked to perform a security assessment of the company's network. During your assessment, you notice that there have been multiple failed login attempts from a single IP address over the past week. You suspect that the failed login attempts may be part of a brute-force attack. Question: What is the most effective way to confirm your suspicion and mitigate the threat using sfuzz?Select one:a.By using sfuzz to send a large number of randomly generated login credentials to the login formb.By using sfuzz to send a large number of targeted login credentials to the login formc.All of the aboved.By using sfuzz to send a large number of dictionary-based login credentials to the login form

Question 5As a security analyst, you are monitoring network traffic and detect a large number of failed login attempts. Which of the following tools would help you investigate this incident? Select two answers.1 pointAn intrusion detection system (IDS)A cryptographic encoderAn antivirus softwareA network protocol analyzer (packet sniffer)