Problem Statement

A firewall has already caught and blocked traffic from a known-malicious IP, yet you now notice a surge of traffic aimed at that same port from many different IP addresses. Which attack does this pattern most likely indicate? Distributed Denial-of-Service (DDoS) SQL Injection Insider Threat Man-in-the-Middle As the Linux administrator for a small company, you notice one morning that the root account on your web server has several failed login attempts, all seemingly coming from a foreign IP address. What should your first response be? Change the root password immediately. Reboot the server to terminate any active sessions. Block the IP address using the firewall. Disable SSH access for the root account. A developer on your team can't run a script at /opt/scripts/run.sh because of a permissions problem. The listing shows: -rw-r----- 1 admin developers 1024 Mar 5 10:30 /opt/scripts/run.sh. Which command lets the developer execute the script? chmod 777 /opt/scripts/run.sh chmod +x /opt/sc