5G Bootcamp Day 2 Istio / Calico / Helm

What is a service mesh? (choose 2)

• a service mesh will not control of delivering service requests in an application

• High availability is not common on a service mesh

• A service mesh is a dedicated infrastructure layer that controls service-to-service communication over a network

• •Service meshes can make service-to-service communication fast, reliable and secure.

What options better describe Istio? (choose 2)

• a required micro services platform for 5G.

• Istio is an open source service mesh that provides the fundamentals needed for a distributed microservice architecture

• Istio reduces complexity of managing microservice deployments by providing a uniform way to secure, connect, and monitor microservices

• When using Istio, another layer for security is needed

Select 3 components of the Istio architecture:

• Galley

• route reflector

• Pilot

• MIxer

• CIticenter

What options better describe Calico? (choose 2)

• Only networking option available for Kubernetes

• •Provides high performance networking fabric, and battle-tested policy engine for Kubernetes clusters

• ECMP with Calico is not available

• •The Calico approach of using a pure IP network combined with BGP for route distribution allows internet scaling for virtual networks

Choose 4 elements of the Calico architecture:

• Etcd

• Iptables

• Felix

• BGP client

• Route reflector

What options are correct about HA deployments on k8s: (choose 3)

• Minimum 3 Masters

• Minimum 2 Masters

• Minimum 3 ETCD

• Minimum 4 ETCD

• ETCD separate from master

What is Helm? (choose 3)

• Helm is an executable application

• Helm is a package manager for Kubernetes applications

• •Helm Charts help you define, install, and upgrade Kubernetes application

• •A Helm chart is simply a collection of YAML template files organized into a specific directory structure