GCP Fundamentals Flashcards by Vessela Zahanova

What is SaaS

Software as a service

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Google Cloud Datastore

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

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What is IaaS

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

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What is PaaS

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

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What is a Zone in GCP network

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

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How to built a fault tolerant application

Spread the resources across multiple zones or across different regions.

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Google pricing details

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

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Google security examples

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

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What are Google projects used for

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

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What is the Google Cloud Platform resource hierarchy

Resources in a folder inherit the IM policies from the folder

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What is the top of the Google Cloud Platform resource hierarcy

The organization node

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Define a Identity and Access Management (IAM)

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?

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What kinds of IAM roles exist?

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

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How can you interact with Google Cloud Platform

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

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What is Cloud Launcher

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

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Virtual Private Cloud (VPC) Network

Google Cloud VPC networks are global; subnets are regional

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What is HTTP load balancing used for

Cross-regional load balancing for web applications

What is global SSL proxy load balancer used for

For Secure Sockets Layer traffic that is not HTTP

What are the GPC interconnect options

VPN
Direct peering
Carrier peering
Dedicated interconnect

What are the core Google storage options

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

What is Cloud Storage

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

How to control access to Cloud Storage

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

Cloud Storage classes

regional, multi regional, nearline, and coldline

Cloud Storage interactions options

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

What is Cloud Bigtable

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

Benefits of using the CloudSQL managed service

- > 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

When to consider Cloud Spanner

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

When to consider Google Cloud Datastore

* 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

What is SSD

Solid State Drive

What is GKE

Google Kubernetes Engine

Command to create Kubernetes cluster

gcloud container clusters create k1

What is a pod in Kubernetes

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

Command to scale Kubernetes

cubectl scale nginx replicas=3

Command to autoscale when usage reaches 80%

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

Command to view Kubernetes pods status

cubectl get pods

What is a Kubernetes pod?

A group of containers

What is a Kubernetes cluster?

A group of machines where Kubernetes can schedule workloads

Command to check Kubernetes cluster

cubectl version

What is TCP

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.

What is UDP

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.