Test Prep

Question 1

How to prevent accidental deletion and overwriting in an S3 bucket.

Answer 1

Enable Versioning and MFA delete

Question 2

What services are tightly integrated with WAF

Answer 2

CloudFront, Application Load Balancer(ALB), API Gateway, AppSync.
(Services to deliver content to websites and applications)

Question 3

What Cloudwatch metrics does it have available by default?

Answer 3

CPU Utilization, Disk Read activity, and Network Packets.

Question 4

Port 22

Answer 4

SSH, SFTP

Question 5

Port 21

Answer 5

FTP

Question 6

Port 80

Answer 6

HTTP

Question 7

Port 443

Answer 7

HTTPS

Question 8

Port 3389

Answer 8

Remote Desktop Protocol

Question 9

What is NAT Gateway

Answer 9

Highly available managed Network Address Translation service for private subnets.

Question 10

RDS is not encrypted at creation, how do you fix to encrypt

Answer 10

Create snapshot and encrypt with copy, load db into copied version. Destroy old

Question 11

RDS databases works with

Answer 11

Postgres
MySQL 
MariaDB
Oracle
Microsoft SQL Server
Aurora

Question 12

RDS Backups

Answer 12

Automatically enabled Daily
5 minute transaction log
You can do manual DB snapshots

Question 13

Amazon EMR

Answer 13

Elastic MapReduse
Big Data- Petabytes
Handles provisioning and configuration

Question 14

Step functions

Answer 14

State machine w/ lambda

Question 15

Simple workflow service

SWF

Answer 15

Recommended for new applications but it is obsolete

EXTERNAL SIGNALS MEANS SWF

Question 16

AWS Opsworks

Answer 16

Performs server configuration automatically or repetitive actions

Manager Chef and puppet

Question 17

Which DNS record verified domain ownership

Answer 17

TXT

Question 18

Amazon MQ

Answer 18

Open source message broker
VPC Based - not public (not accessible via internet)

Not easy for aws integrated services

Migrating from an existing system is MQ
If new system probably use sqs and sns