312-38 Exam Dumps : Certified Network Defender (CND)

Implementing access control mechanisms like a firewall is a preventive measure in network defense. The preventive approach focuses on establishing barriers and safeguards to stop security incidents before they occur. Firewalls are a core component of this strategy, as they control incoming and outgoing network traffic based on predetermined security rules, thereby preventing unauthorized access to or from a network.

References: The Certified Network Defender (CND) program emphasizes a multi-layered defense strategy, which includes the Protect, Detect, Respond, and Predict framework. Within this framework, the Protect phase aligns with the preventive approach, as it involves the implementation of security measures that aim to prevent threats from compromising the network1. This is further supported by the NIST Cybersecurity Framework, which outlines Identify, Protect, Detect, Respond, and Recover as the five core functions for a comprehensive cybersecurity approach2.

The attack described is known as DNS Poisoning, also referred to as DNS Spoofing. This type of attack occurs when an attacker manipulates the DNS server’s cache, so that the server returns an incorrect IP address for a website. This results in users being redirected to malicious websites instead of the intended destination. The attacker’s goal is typically to spread malware, steal personal information, or disrupt services. DNS Poisoning is a serious security threat because it can be used to compromise entire networks and is difficult to detect.

References: The concept of DNS Poisoning is a well-established security concern and is covered in various cybersecurity resources as a common method of attack12345.

A hot backup, also known as an online backup or dynamic backup, is the process of backing up data while the system continues to be in operation. This means that there is no need for system downtime or interruption in services while the backup is taking place. It is mostly used in systems where operations are critical and cannot afford any downtime, such as databases and servers that must be available 24/7. The hot backup method allows for data to be backed up at regular intervals with minimal impact on the system’s performance, ensuring that the organization can maintain continuous service levels.

References: The concept of hot backup is aligned with the ECCouncil’s Network Defender (CND) objectives and is supported by industry best practices as detailed in sources like MiniTool1 and NinjaOne2, which discuss the advantages of hot backups in maintaining uninterrupted service and business continuity.