A network engineer manages a router that carries production traffic and a lab environment. The lab must use overlapping IP subnets with production, but the two environments must not route to each other. The router has limited CPU and memory. The engineer considers using VRFs or separate VMs. Which solution is most resource-efficient and meets the requirement?

Create two VRFs on the router and assign the lab and production interfaces to different VRFs.

Place lab and production in different VLANs and route between them with a firewall.

Deploy two virtual routers in VMs on a hypervisor connected to the physical router.

Use a single routing table with access control lists to block cross-traffic.

An organization runs a legacy application that requires a specific older kernel version. They need to run this application on modern hardware alongside other applications that require a newer kernel. What is the most appropriate virtualization approach?

Use a VRF to isolate the legacy application's network traffic.

Create a VM with the older kernel and run the legacy application inside it.

Install the older kernel directly on the host and run all applications on it.

Use containers to run the legacy application with its own kernel.

A DevOps team deploys a containerized application on a single Linux host. The application needs to reach two different networks that use overlapping IP ranges. The team considers using network namespaces or VRFs. Which solution is most appropriate?

Use a single network namespace with policy-based routing.

Use VRFs on the host to separate the networks.

Use a VM to run the container with two NICs.

Use Linux network namespaces to isolate the container's network stack.

A service provider hosts multiple customers on a single router. Each customer must have its own routing table and must not see other customers' routes, but all customers share the same physical interfaces. Which feature should the provider configure on the router?

Create a separate VLAN for each customer and assign IP addresses from different subnets.

Use policy-based routing to direct each customer's traffic to different next hops.

Configure a single OSPF process with multiple areas, one per customer.

Enable VRF-Lite and assign each customer's interfaces to a unique VRF.

A company has a monolithic application that is difficult to scale. They want to refactor it into microservices. The team is considering containers and VMs. The application has some components that require different OS kernels. What is the best strategy?

Run all microservices in a single VM.

Run all microservices in containers on the same host.

Run all microservices in separate VMs.

Run most microservices in containers and the kernel-dependent components in VMs.

CiscoCertified Network Associate (CCNA)

Domain 1Objective 12

1.12 Explain Virtualization Fundamentals (server Virtualization, Containers, and VRFs) 200-301 Practice Questions (Page 1)

Part of the Network Fundamentals domain, which accounts for 20% of the 200-301 exam. Cisco does not publish an official question count, but from its 120-minute exam (~50–80 total, ~10–16 in this domain), expect 1–1 from this objective — we provide 29 practice questions to prepare you well beyond it. (estimate)

29questions here

6free pages

3concepts

20%of the exam

Questions 1–5

1expert · hard
A network engineer manages a router that carries production traffic and a lab environment. The lab must use overlapping IP subnets with production, but the two environments must not route to each other. The router has limited CPU and memory. The engineer considers using VRFs or separate VMs. Which solution is most resource-efficient and meets the requirement?
Select an answer first
2application · medium
An organization runs a legacy application that requires a specific older kernel version. They need to run this application on modern hardware alongside other applications that require a newer kernel. What is the most appropriate virtualization approach?
Select an answer first
3expert · hard
A DevOps team deploys a containerized application on a single Linux host. The application needs to reach two different networks that use overlapping IP ranges. The team considers using network namespaces or VRFs. Which solution is most appropriate?
Select an answer first
4application · medium
A service provider hosts multiple customers on a single router. Each customer must have its own routing table and must not see other customers' routes, but all customers share the same physical interfaces. Which feature should the provider configure on the router?
Select an answer first
5expert · hard
A company has a monolithic application that is difficult to scale. They want to refactor it into microservices. The team is considering containers and VMs. The application has some components that require different OS kernels. What is the best strategy?
Select an answer first

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