Which of the following service provides phishing protection and content filtering to manage the Internet experience on and off your network with the acceptable use or compliance policies?
OpenDNS provides extensive phishing protection and content filtering services. It operates by enforcing internet use policies on and off the network, ensuring that users adhere to acceptable use and compliance policies. Here's how OpenDNS achieves this:
Phishing Protection:OpenDNS uses predictive security to anticipate and prevent threats before they can reach the network. It does this by using DNS to enforce security, which is often quicker and more effective than traditional methods.
Content Filtering:OpenDNS allows the network administrator to block unwanted content categories, thus enforcing compliance with organizational policies. This is done through DNS queries, which are checked against OpenDNS's database to ensure they comply with the set policies.
Off-Network Protection:OpenDNS's roaming client allows the same level of protection and filtering even when devices are not connected to the company network, ensuring consistent enforcement of policies.
References:
EC-Council's Certified SOC Analyst (C|SA) program provides training and certification for SOC analysts, covering the fundamentals of SOC operations, including phishing protection and content filtering1.
Additional resources and study guides from the EC-Council elaborate on the role of SOC analysts and the tools they use, including services like OpenDNS for maintaining network security and integrity23.
Which of the following command is used to view iptables logs on Ubuntu and Debian distributions?
In Ubuntu and Debian distributions, the command to view iptables logs is$ tailf /var/log/kern.log. This command allows you to follow the end of the kernel log file in real-time. It is useful for monitoring the logs as they are updated. Thetailfcommand is similar totail -f, and it displays the last ten lines of the file by default and then outputs appended data as the file grows.
References: The answer is verified according to the EC-Council's Certified SOC Analyst (CSA) course materials and study guides, which cover the practical aspects of security operations and incident handling, including the monitoring of systems and logs123.
At a large healthcare organization, the Security Operations Center (SOC) detects a surge of failed login attempts on employee accounts, indicating a possible brute-force attack. To contain the threat, the team quickly takes action to prevent unauthorized access. However, they also need to implement a security measure that strengthens account protection beyond just stopping the current attack, reducing the risk of similar incidents in the future. During the Containment Phase, which action would best enhance long-term account security against brute-force attacks?
MFA is the most effective long-term control among the options because it directly reduces the attacker's ability to succeed even when passwords are guessed, reused, or stolen. Brute-force and credential stuffing attacks exploit the single-factor nature of passwords; MFA adds an additional verification factor (authenticator app prompt, FIDO2 key, certificate-based auth), making account takeover significantly harder. From a containment standpoint, blocking IPs and enabling lockout can reduce immediate attack volume, but attackers commonly rotate IPs, use botnets, or target many accounts in parallel, which can also cause operational impact via account lockouts (denial of service against users). Cross-verifying false positives is important for accuracy, but it does not strengthen security. Notifying users can help awareness but is not a technical control. In SOC operations, the best practice is layered containment: immediate throttling/blocks and lockout tuning for the active attack, followed by durable hardening controls. MFA is the durable hardening step that meaningfully reduces future brute-force success rates and complements conditional access policies (geo/time/device risk) and stronger password protections.
In Which option best incident handling and response stages, the root cause of the incident must be found from the forensic results?
Which of the following event detection techniques uses User and Entity Behavior Analytics (UEBA)?
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