NE NE Network Virtualization 2

Question 1

What is a VTEP (VXLAN Tunnel Endpoint)?

Accepted Answer

A device or software component that encapsulates and decapsulates VXLAN packets

Answer

A protocol for managing VXLAN traffic policies

Answer

A virtual router that connects VXLAN segments to external networks

Answer

A monitoring agent used to track tunnel health metrics

Question 2

Which type of hypervisor runs directly on physical hardware without requiring a host operating system?

Accepted Answer

Type 1 hypervisor

Answer

Type 2 hypervisor

Answer

Hosted hypervisor

Answer

Container runtime hypervisor

Question 3

What is the primary purpose of GRE (Generic Routing Encapsulation) in network virtualization?

Accepted Answer

To encapsulate a wide variety of network layer protocols inside IP tunnels

Answer

To encrypt traffic between data center sites

Answer

To assign IP addresses dynamically to virtual machines

Answer

To monitor network performance across virtual segments

Question 4

What is microsegmentation in the context of network virtualization?

Accepted Answer

Applying granular security policies to individual workloads or virtual machines

Answer

Dividing a network into multiple physical cable segments

Answer

Creating VLANs with fewer than 10 devices each

Answer

Segmenting traffic flows by packet size or protocol

Question 5

In an SDN architecture, what is the 'northbound API' used for?

Accepted Answer

Communication between SDN applications and the SDN controller

Answer

Communication between the SDN controller and network forwarding devices

Answer

Routing traffic from southern to northern data center regions

Answer

Connecting physical switches to virtual network overlays

Question 6

Which protocol is most commonly used as the control plane for VXLAN in modern data center deployments?

Accepted Answer

BGP EVPN

Answer

OSPF

Answer

RIP

Answer

EIGRP

Question 7

What is a virtual switch (vSwitch) primarily responsible for in a virtualized server environment?

Accepted Answer

Forwarding network traffic between virtual machines and to physical networks

Answer

Replacing all physical switches in the data center rack

Answer

Providing DHCP services to virtual machines on the host

Answer

Managing hypervisor licensing and resource allocation