CVIM/ESC KT

Which of the following are examples of hypervisors?

• QEMU/KVM

• ESXi

• Xen

• Docker

Answer explanation

QEMU/KVM, ESXi, and Xen are all examples of hypervisors. They allow multiple operating systems to share a single hardware host. However, Docker is not a hypervisor but a platform to build, deploy, run, update and manage containers.

Openstack is used widely for deploying public clouds

• True

• False

Answer explanation

The statement in the question is incorrect. Although OpenStack can be used to deploy both public and private clouds, it's not exclusively used for deploying public clouds. Therefore, the correct response is 'False'.

Select all Openstack ML2(Modular Layer 2) plugin type-drivers
Clue - Network segmentation protocols

• VLAN

• VxLAN

• ARP

• STP

Answer explanation

Openstack ML2 (Modular Layer 2) plugin type-drivers include Flat, VLAN, VxLAN, GRE etc. These are network segmentation protocols used in Openstack. ARP and STP are not type-drivers, but other Layer-2 protocols.

Openstack fits into "Virtualized Infrastructure Manager" entity in ETSI-MANO Framework

• True

• False

Answer explanation

The question asks whether Openstack fits into the 'Virtualized Infrastructure Manager' entity in the ETSI-MANO Framework. The answer is 'True' because Openstack is indeed used in the ETSI-MANO Framework as a Virtualized Infrastructure Manager. It manages the lifecycle of virtual resources and provides a set of functionalities to control and manage virtualised resources.

Select three core Openstack services

• Keystone

• Nova

• Neutron

• Ceilometer

• Heat

Answer explanation

The question asks about the three core OpenStack services. Keystone, Nova, and Neutron are the correct choices because they perform critical functions in OpenStack. Keystone is responsible for identity services, Nova provides compute services, and Neutron handles networking services. Other options like Ceilometer(metrics) and Heat(orcehstration), although part of OpenStack, are not considered as core services.

Which two virtual switches available in Cisco VIM, to implement Neutron networks?

• OpenvSwitch

• Vector Packet Processor

• vSRX

Answer explanation

The question asks about the two virtual switches available in Cisco VIM to implement Neutron networks. The correct choices are OpenvSwitch(OvS) and Vector Packet Processor(VPP). OpenvSwitch is a multilayer virtual switch, Vector Packet Processor is a high performance, packet-processing stack. Juniper vSRX, however, is a virtual firewall and not a virtual switch, thus it is not a correct answer option in this context.

How do internal components of an Openstack service communicate with each other?

• AMQP

• HTTP REST API

• gRPC

• GraphQL

Answer explanation

The internal components of Openstack services communicate with each other through AMQP - Advanced Message Queuing Protocol. HTTP(S) REST API is used for interaction between openstack services and for external communication towards services

How Cisco VIM makes life easy for a SP customer?

• Provides Carrier-Grade NFV platform to host VNFs

• Easy installation & life-cycle management of pod

• Integrated health checks for sanity of the cloud

• out-of-the-box monitoring and assurance capabilities

Answer explanation

Cisco VIM, or Virtual Infrastructure Manager, improves the experience for Service Provider customers in several ways. It provides a robust and reliable platform for hosting Virtual Network Functions (VNFs). Additionally, it simplifies the installation and life-cycle management of the pod. The integrated health checks ensure the proper functioning of the cloud. Lastly, it offers monitoring and assurance tools out-of-the-box, reducing the need for additional systems.