A security administrator wants to use Microsoft Defender for Cloud to protect Azure VMs. Which two of the following should be enabled to meet the requirements? (Choose two.)
Trap 1: Azure Bastion
Azure Bastion provides secure and seamless RDP/SSH connectivity to Azure VMs directly through the Azure portal, eliminating the need to expose VMs to the public internet via public IP addresses. However, it is a dedicated Azure service for secure remote access, not a feature *within* Microsoft Defender for Cloud that directly modifies VM network security rules or provides security recommendations. While enhancing overall security, it doesn't fulfill the requirement of *using Defender for Cloud* for direct VM protection via traffic control.
Trap 2: Vulnerability assessment
Vulnerability assessment, integrated into Defender for Cloud, scans Azure VMs for known software vulnerabilities, misconfigurations, and security baselines. Its primary function is to identify and report security weaknesses within the VM's operating system and applications, providing insights for remediation. However, it does not directly control inbound network access to VMs or implement just-in-time access policies; it focuses on discovery rather than active network traffic enforcement.
- A
Just-in-Time (JIT) VM access
Just-in-Time (JIT) VM access in Defender for Cloud significantly reduces the attack surface by locking down inbound management ports on Azure VMs. It dynamically opens specific, time-limited access to approved IP addresses and ports only when requested by authorized users. This temporary access mechanism ensures that VMs are exposed to the internet only for the duration and scope necessary for administrative tasks, greatly enhancing security posture.
- B
Azure Bastion
Why wrong: Azure Bastion provides secure and seamless RDP/SSH connectivity to Azure VMs directly through the Azure portal, eliminating the need to expose VMs to the public internet via public IP addresses. However, it is a dedicated Azure service for secure remote access, not a feature *within* Microsoft Defender for Cloud that directly modifies VM network security rules or provides security recommendations. While enhancing overall security, it doesn't fulfill the requirement of *using Defender for Cloud* for direct VM protection via traffic control.
- C
Adaptive network hardening
Adaptive network hardening, a feature within Defender for Cloud, leverages machine learning to continuously analyze actual network traffic patterns to and from Azure VMs. It then provides tailored recommendations to tighten Network Security Group (NSG) rules, suggesting the most restrictive yet functional access policies. This proactive hardening reduces the attack surface by ensuring only necessary ports and IP ranges are open, based on observed legitimate behavior.
- D
Vulnerability assessment
Why wrong: Vulnerability assessment, integrated into Defender for Cloud, scans Azure VMs for known software vulnerabilities, misconfigurations, and security baselines. Its primary function is to identify and report security weaknesses within the VM's operating system and applications, providing insights for remediation. However, it does not directly control inbound network access to VMs or implement just-in-time access policies; it focuses on discovery rather than active network traffic enforcement.