Courseiva

350-401 · domain

Virtualization

Use this page to practise Virtualization questions for this certification. Focus on how the exam tests virtualization in scenario format — understanding the why behind each answer builds more durable knowledge than memorising options.

20 questions5 easy9 medium6 hard

Focused practice

Practice Virtualization questions

Scored sessions drawing only from this domain — pick a length below.

What this domain covers

What to know about Virtualization

Virtualization questions on this certification test your ability to deploy and manage virtualization concepts in scenario-based situations.

Core Virtualization concepts and how they apply in real-world cloud scenarios.

How to deploy virtualization correctly and verify the outcome.

Troubleshooting virtualization issues by interpreting error output and system state.

Cloud best practices and Virtualization design trade-offs tested by this certification.

Why learners struggle

Why Virtualization questions are commonly missed

Learners often confuse Type 1 and Type 2 hypervisors, and misunderstand VM resource limits versus host capabilities. The abstract nature of virtualized hardware makes it hard to apply to real scenarios.

  • ·Type 1 vs Type 2 hypervisor — which runs directly on hardware.
  • ·Host vs guest OS — which controls physical resources.
  • ·Overcommitment — VM resources can exceed host physical limits.
  • ·Snapshot vs backup — snapshot is not a full backup.
  • ·Virtual switch vs physical switch — network isolation differences.
  • ·Hardware compatibility — guest OS may lack drivers for virtual hardware.

Watch out for

Common Virtualization exam traps

  • Selecting the most expensive service when a simpler managed option meets the requirement.
  • Forgetting that cloud resources must be explicitly secured — defaults are rarely secure.
  • Choosing a global service fix when the issue is region-specific.
  • Overlooking cost implications of cross-region data transfer in architecture questions.

Question index

All Virtualization questions (20)

Click any question to see the full explanation, or start a practice session above.

1

Which TWO of the following are benefits of using network virtualization with VXLAN? (Choose two.)

Easy
2

A network engineer is troubleshooting connectivity issues in a multi-tenant environment where each tenant's traffic is isolated using VRF-Lite. The engineer notices that tenants in the same VRF cannot communicate with each other across different access switches. Which design change should be implemented to enable inter-switch VRF communication?

Medium
3

An organization is migrating from a traditional three-tier architecture to a leaf-spine fabric using VXLAN EVPN. The design requires that virtual machines can move between racks without IP address changes. Which technology must be enabled at the leaf switches to support this mobility?

Hard
4

Which THREE of the following are components of a Cisco ACI fabric? (Choose three.)

Easy
5

Drag and drop the steps to configure OSPF on a Cisco router in the correct order.

Medium
6

Drag and drop the steps to configure a site-to-site IPsec VPN on a Cisco router in the correct order.

Medium
7

An enterprise uses VMware vSphere to host multiple virtual machines (VMs). The network team wants to implement a virtual firewall on the hypervisor to inspect traffic between VMs on the same ESXi host. Which technology should be used?

Easy
8

An engineer configures VXLAN EVPN on a Nexus 9000 switch. The configuration is shown. The switch does not advertise any EVPN routes for VNI 10100. Which configuration change is required to fix this issue?

Hard
9

A network engineer configured VRF TENANT_A and moved the subinterfaces into the VRF. After the change, the CEF table shows the prefixes but the next-hop addresses are unreachable. What is the most likely cause?

Hard
10

A cloud provider uses Cisco ACI to automate provisioning of tenant networks. A new tenant requires a Layer 2 bridge domain that extends to an external Layer 2 network via a VPC. The engineer creates a bridge domain with the settings: Type: Regular, L2 Unknown Unicast: Flood, L3 Unknown Multicast Flood: Flood, and Multi-Destination Flooding: Flood. The VPC is configured as a virtual port channel. The tenant reports that broadcast traffic is not reaching the external network. What is the most likely cause?

Hard
11

Which TWO statements correctly describe characteristics of virtual device contexts (VDCs) in Cisco Nexus switches?

Easy
12

Match each network device to its primary function.

Medium
13

Match each Cisco switch security feature to its function.

Medium
14

Refer to the exhibit. A network engineer has configured VRFs on a router. A packet arrives on Gi0/1/0 with destination IP 10.1.1.2. Which VRF is used for routing this packet?

Medium
15

A financial services company has deployed Cisco UCS servers with VMware vSphere 7.0 to host critical trading applications. The network uses Cisco Nexus 9000 switches in a VXLAN EVPN fabric with BGP as the underlay. The environment includes 50 ESXi hosts, each connected via two 40G interfaces to two different leaf switches in a VPC. The VMs are spread across multiple hosts and communicate over VXLAN. Recently, the operations team migrated a set of VMs from an old VLAN-based network to a new VXLAN segment (VNI 50000). After the migration, users report intermittent connectivity issues and packet loss. The engineering team captures traffic and notices that some VMs send ARP requests that are not being replied to, even though the target VM is active. Further analysis shows that the ARP requests are being flooded to all VTEPs, but the replies are not reaching the source. The team checks the underlay and finds no issues with BGP or routing. The NVE interfaces are up, and the VNI is configured. Which of the following is the most likely cause of the issue?

Hard
16

A network engineer configured three interfaces on a switch as shown. A host connected to Ethernet1/2 sends an untagged frame. Which VLAN will this frame be placed into when it reaches Ethernet1/3?

Medium
17

A data center uses Cisco Nexus 9000 switches with VXLAN EVPN to provide network virtualization. The operations team notices that VLAN 100 (mapped to VNI 10100) is not reachable across the fabric, although other VLANs work fine. The NVE interface is up, and the EVPN address-family is configured. Which two actions should the engineer take to isolate the issue?

Hard
18

A network engineer is deploying a Cisco Catalyst 9300 switch as a virtual switch using StackWise Virtual. The switch will connect to two upstream routers for redundancy. What is the best practice for connecting the uplinks?

Medium
19

Which TWO statements about virtual switching in a hypervisor environment are correct?

Easy
20

A service provider uses a Cisco ASR 1000 router to provide MPLS L3VPN services to multiple customers. Each customer has their own VRF. Recently, a new customer was added with VRF CUSTOMER_C. After configuration, the customer reports that they can reach some remote sites but not others. The network engineer checks the VRF configuration and finds that the route targets for CUSTOMER_C are correctly configured. The engineer also verifies that BGP sessions to the PE routers are up. The missing routes are from a site that uses a different PE router. Which action should the engineer take to resolve the issue?

Medium

Frequently asked questions

What does the Virtualization domain cover on the 350-401 exam?
Virtualization questions on this certification test your ability to deploy and manage virtualization concepts in scenario-based situations.
How many questions are in this domain?
This page lists all 20 Virtualization questions in the 350-401 question bank. The actual exam draws from this domain proportionally to its weighting in the official exam blueprint.
What is the best way to practise this domain?
Start with a short focused session (10 questions) to identify gaps, then work through explanations. Repeat with a longer session once the weak areas feel solid.
Can I practise only Virtualization questions?
Yes — the session launcher on this page filters questions to this domain only. Choose any session length for inline explanations and scoring.
ENCOR 350-401 Virtualization Practice Questions