1.12 Explain Virtualization Fundamentals (server Virtualization, Containers, and VRFs) 200-301 Practice Questions (Page 2)

Questions 6–10

1. 6application · medium

   A development team wants to test a microservices application that consists of several small services. They need to deploy the services quickly on a single Linux host, with each service having its own dependencies and network namespace, but without the overhead of a hypervisor. Which technology best meets these requirements?

   • ARun each service in a separate virtual machine on a Type 2 hypervisor.
   • BAssign each service to a different VRF on the host.
   • CUse Docker containers with each service in its own container.
   • DInstall each service directly on the host with different port numbers.
   Reveal Solution Discussion Select an answer first
2. 7application · medium

   A service provider wants to offer separate routing services to two customers on the same edge router. Each customer has their own set of routes and must not see the other's routes. The router has multiple physical interfaces, and each customer connects via a different interface. What should be configured?

   • APlace each customer's interface in a different VRF.
   • BUse a single OSPF process with different areas for each customer.
   • CEnable VRF-Lite but assign both interfaces to the same VRF.
   • DConfigure static routes with administrative distances to separate customers.
   Reveal Solution Discussion Select an answer first
4. 8foundation · easy

   A network engineer is explaining server virtualization to a junior colleague. Which statement correctly describes the role of a hypervisor?

   • AIt is software that creates and manages virtual machines by abstracting the underlying physical hardware resources.
   • BIt is a physical server that hosts multiple virtual machines and provides them with direct access to hardware.
   • CIt is the operating system installed inside each virtual machine that manages the guest's applications.
   • DIt is a network device that forwards traffic between virtual machines on the same physical server.
   Reveal Solution Discussion Select an answer first
5. 9expert · hard

   A DevOps team is designing a CI/CD pipeline that builds and tests microservices. Each build must run in an isolated environment with its own filesystem and network stack, and the team needs to spin up many builds in parallel with minimal delay. The build agents run on a Linux host. Which approach best meets these requirements?

   • ACreate a new VM for each build using a template.
   • BRun builds directly on the host with separate working directories.
   • CUse VRFs on the host to isolate each build's network traffic.
   • DUse containers for each build, each with its own network namespace.
   Reveal Solution Discussion Select an answer first
6. 10application · medium

   A company runs multiple virtual servers on a single physical host. Each virtual server has its own operating system and applications. The network administrator needs to ensure that traffic between these virtual servers is isolated at Layer 3, even though they are on the same physical host. What should be used?

   • AAssign each VM to a different VLAN on the virtual switch.
   • BUse the host's routing table with policy-based routing.
   • CUse a virtual router with VRFs to segment routing between the VMs.
   • DConfigure a VRF on the virtual switch for each virtual server.
   Reveal Solution Discussion Select an answer first