Implementing and Operating Cisco Enterprise Network Core Technologies (ENCOR) v1.2VirtualizationEasy
A security engineer is tasked with segmenting network traffic for different applications deployed on the same physical server within a virtualized environment. Each application requires its own dedicated firewall policies. Which virtualized network component can provide this granular, per-application firewalling without deploying multiple physical appliances?
- AVirtual Load Balancer
- BVirtual Switch
- CVirtual Router
- DVirtual Firewall
Show answer & explanationAnswer & explanation
Correct answer: D. Virtual Firewall
A virtual firewall allows multiple independent firewall instances to run on a single physical hardware appliance or hypervisor. Each virtual firewall can be configured with its own policies, interfaces, and security zones, providing granular segmentation and dedicated security services for individual applications or tenants without the need for multiple physical devices.
Why the other options are wrong
- A. A virtual load balancer distributes traffic but does not provide firewall functionality.
- B. A virtual switch handles Layer 2 forwarding for VMs but does not provide firewalling.
- C. A virtual router provides routing services but not dedicated firewall policies.
Virtual Firewall
A software-based firewall instance that runs on a virtualized platform, providing dedicated security services for virtualized environments.
- Offers granular security policies per application or tenant.
- Runs on a hypervisor or as a virtual appliance on a physical firewall.
- Enables multi-tenancy and efficient resource utilization for security.
Memory trick: Virtual Firewalls: Dedicated Security for Virtual Apps.