GCP Fundamentals

Question 1

What is SaaS

Answer 1

Software as a service

Question 2

Google Cloud Datastore

Answer 2

Cloud Datastore is a NoSQL document database built for automatic scaling, high performance, and ease of application development.

Question 3

What is IaaS

Answer 3

Infrastructure as a Service. It provide raw compute, storage, and network organized in ways that are familiar from data centers

Question 4

What is PaaS

Answer 4

Platform as a Service. It binds application code you write to libraries that give access to the infrastructure your application needs.

Question 5

What is a Zone in GCP network

Answer 5

A zone is a single failure domain within a region - the fines level grain. Zones are grouped into Regions.

Question 6

How to built a fault tolerant application

Answer 6

Spread the resources across multiple zones or across different regions.

Question 7

Google pricing details

Answer 7

Billing by the second. Sustained use discounts. Automatic discounts for each incremental minute of use. Custom virtual machine types

Question 8

Google security examples

Answer 8

Google custom security chip - Titan. Cryptographic signatures. Automatic encryption of PC traffic between data centers. GFE - Google front end: checks incoming connections for correct certificates

Question 9

What are Google projects used for

Answer 9

To organize resources, group together related resources with common business objective.

Question 10

What is the Google Cloud Platform resource hierarchy

Answer 10

Resources in a folder inherit the IM policies from the folder

Question 11

What is the top of the Google Cloud Platform resource hierarcy

Answer 11

The organization node

Question 12

Define a Identity and Access Management (IAM)

Answer 12

Who? -> Google account, a Google group, a Service account, an entire G Suite, or a Cloud Identity domain.
Can do what? -> defined by an IAM role. An IAM role is a collection of permissions grouped together for easier maintenance
On what resource?

Question 13

What kinds of IAM roles exist?

Answer 13

1. Primitive roles: owner, editor, viewer, billing administrator role.
2. GCP predefined roles.
3. Custom roles

Question 14

How can you interact with Google Cloud Platform

Answer 14

1. GCP Console - web interface
2. Cloud Shell and Cloud SDK - command line interface: gcloud, gsutil, bq
3. Cloud Console mobile app - for IOS and Android
4. REST-based APIs - for custom applications

Question 15

What is Cloud Launcher

Answer 15

It’s a tool for quickly deploying functional software packages on Google Cloud platform.

Question 16

Virtual Private Cloud (VPC) Network

Answer 16

Google Cloud VPC networks are global; subnets are regional

Question 17

What is HTTP load balancing used for

Answer 17

Cross-regional load balancing for web applications

Question 18

What is global SSL proxy load balancer used for

Answer 18

For Secure Sockets Layer traffic that is not HTTP

Question 19

What are the GPC interconnect options

Answer 19

1. VPN
2. Direct peering
3. Carrier peering
4. Dedicated interconnect

Question 20

What are the core Google storage options

Answer 20

Cloud Storage, Cloud SQL, Cloud Spanner, Cloud Data Store and Google Big Table.

Question 21

What is Cloud Storage

Answer 21

Binary loud-object storage - with high availability and high durability. Objects are immutable. Data in transit is encrypted by https

Question 22

How to control access to Cloud Storage

Answer 22

For most purposes, Cloud IAM is sufficient. Roles are inherited from project to bucket to object. If you need finer control, you can create access control lists ACLs that offer finer control

Question 23

Cloud Storage classes

Answer 23

regional, multi regional, nearline, and coldline

Question 24

Cloud Storage interactions options

Answer 24

1. Online transfer service: self managed copy by command line or drag and drop
2. Storage Transfer service: scheduled batch transfers
3. Transfer Appliance: rackable appliances to securely ship your data

Question 25

What is Cloud Bigtable

Answer 25

Google’s NoSQL, big data database service, sparsely populated tables that can scale to billions of rows and thousands of columns allowing you to store petabytes of data. It’s ideal for data that has a single lookup key. Cloud Bigtable is ideal for storing large amounts of data with very low latency

Question 26

Benefits of using the CloudSQL managed service

Answer 26

• > CloudSQL provide several replica services like read, failover, and external replicas.
• > CloudSQL also helps you backup your data with either On-Demand or scheduled backups
• > It can also scale both vertically by changing the machine type, and horizontally via read replicas
• > they are accessible by other GCP services and even external services

Question 27

When to consider Cloud Spanner

Answer 27

you need horizontal scale ability - it offers transactional consistency at a global scale, schemas, SQL, and automatic synchronous replication for high availability

Question 28

When to consider Google Cloud Datastore

Answer 28

• highly scalable NoSQL database
• stores structured data from App Engine apps
• fully managed service
• automatically handles sharding and replication
• offers transactions that affect multiple database rows
• it lets you do SQL-like queries

Question 29

What is SSD

Answer 29

Solid State Drive

Question 30

What is GKE

Answer 30

Google Kubernetes Engine

Question 31

Command to create Kubernetes cluster

Answer 31

gcloud container clusters create k1

Question 32

What is a pod in Kubernetes

Answer 32

a pod is the smallest unit in Kubernetes that you create or deploy

Question 33

Command to scale Kubernetes

Answer 33

cubectl scale nginx replicas=3

Question 34

Command to autoscale when usage reaches 80%

Answer 34

cubectl autoscale nginx –min=10 –max=15 –cpu=80

Question 35

Command to view Kubernetes pods status

Answer 35

cubectl get pods

Question 36

What is a Kubernetes pod?

Answer 36

A group of containers

Question 37

What is a Kubernetes cluster?

Answer 37

A group of machines where Kubernetes can schedule workloads

Question 38

Command to check Kubernetes cluster

Answer 38

cubectl version

Question 39

What is TCP

Answer 39

Transmission control protocol. TCP enables two hosts to establish a connection and exchange streams of data. TCP guarantees delivery of data and also guarantees that packets will be delivered in the same order in which they were sent.

Question 40

What is UDP

Answer 40

UDP (User Datagram Protocol) is an alternative communications protocol to Transmission Control Protocol (TCP) used primarily for establishing low-latency and loss-tolerating connections between applications on the internet.