CCNA Tutorial 1.12 – Virtualization Fundamentals (Server Virtualization, Containers, VRFs)
Quiz – CCNA 1.12 Virtualization Fundamentals
Multiple Choice (20 questions)
- What is the main benefit of server virtualization?
- A) Faster cabling
- B) Running multiple virtual machines on one physical server
- C) Eliminates need for switches
- D) More broadcast domains
- Which software is responsible for managing virtual machines?
- A) Router OS
- B) Hypervisor
- C) VRF
- D) Switch firmware
- Which type of hypervisor runs directly on hardware?
- A) Type 1 (bare-metal)
- B) Type 2 (hosted)
- C) Type 3
- D) Container runtime
- Which type of hypervisor runs on top of an operating system?
- A) Type 1
- B) Type 2
- C) Container runtime
- D) VRF
- Which of the following is an example of a container platform?
- A) VMware ESXi
- B) Docker
- C) Hyper-V
- D) KVM
- What is a key difference between containers and virtual machines?
- A) Containers emulate hardware
- B) Containers share the host OS kernel
- C) VMs are smaller and faster
- D) Containers always require hypervisors
- Which virtualization approach provides the fastest startup times?
- A) VMs
- B) Containers
- C) VRFs
- D) Type 2 hypervisors
- Which of these is NOT a benefit of server virtualization?
- A) Hardware consolidation
- B) Better resource utilization
- C) Increased physical server count
- D) Flexibility in deployment
- A Virtual Routing and Forwarding (VRF) instance allows:
- A) Multiple routing tables on the same router
- B) Multiple broadcast domains in a switch
- C) Virtual machines on a server
- D) Containers to run on Linux
- VRFs are often compared to:
- A) VLANs at Layer 2
- B) DNS servers
- C) Hypervisors
- D) Containers
- Which technology is best for isolating applications without emulating hardware?
- A) VMs
- B) Containers
- C) VRFs
- D) NAT
- Which technology is best for running multiple OS environments on one host?
- A) Containers
- B) Server virtualization (VMs)
- C) VRFs
- D) Routing protocols
- Which is a lightweight form of virtualization?
- A) Virtual machines
- B) Containers
- C) VRFs
- D) Hypervisors
- What is required for multiple VRFs on a router?
- A) Separate physical interfaces for each VRF
- B) Logical separation of routing tables
- C) A hypervisor
- D) A container runtime
- Containers are most often deployed for:
- A) Monolithic applications
- B) Microservices and cloud-native apps
- C) Physical networking
- D) Routing protocols
- What allows two VRFs on the same router to use overlapping IP addresses?
- A) NAT
- B) Separate routing tables per VRF
- C) VLAN tagging
- D) Type 2 hypervisors
- Which virtualization type uses the concept of namespaces and cgroups?
- A) Hypervisors
- B) Containers
- C) VRFs
- D) Virtual machines
- Which is an advantage of containers compared to VMs?
- A) Stronger hardware isolation
- B) Smaller footprint and faster scaling
- C) Dedicated OS kernel per instance
- D) Requires bare-metal installation
- Which Cisco technology relies on VRFs for segmentation?
- A) VLANs
- B) MPLS VPNs
- C) NAT
- D) DHCP
- Which of the following is true about VRFs?
- A) They operate at Layer 2 only
- B) They allow multiple routing instances on one router
- C) They eliminate the need for routers
- D) They are a replacement for containers
Fill in the Blank (5 questions)
- A __________ is software that creates and manages virtual machines.
- A __________ hypervisor runs directly on physical hardware.
- Containers share the host’s __________ kernel.
- A __________ allows multiple routing tables to exist on a single router.
- Docker is an example of a __________ platform.
Answer Key – CCNA 1.12 Virtualization Fundamentals
- B) Running multiple virtual machines on one physical server
- B) Hypervisor
- A) Type 1 (bare-metal)
- B) Type 2 (hosted)
- B) Docker
- B) Containers share the host OS kernel
- B) Containers
- C) Increased physical server count
- A) Multiple routing tables on the same router
- A) VLANs at Layer 2
- B) Containers
- B) Server virtualization (VMs)
- B) Containers
- B) Logical separation of routing tables
- B) Microservices and cloud-native apps
- B) Separate routing tables per VRF
- B) Containers
- B) Smaller footprint and faster scaling
- B) MPLS VPNs
- B) They allow multiple routing instances on one router
- Hypervisor
- Type 1
- OS
- VRF
- Container