SA ASSOCIATE Flashcards

1
Q

If you want your application to check RDS for an ERROR, have it look for an ______ node in the response from the Amazon RDS API.

A

ERROR NODE

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2
Q

Which of the following DynamoDB features are chargeable, when using a single region?

A
  • READ AND WRITE CAPACITY

* STORAGE OF DATA

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3
Q

What data transfer charge is incurred when replicating data from your primary RDS instance to your secondary RDS instance?

A

NO CHARGE

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4
Q

How many copies of my data does RDS - Aurora store by default?

A

6

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5
Q

Amazon’s ElastiCache uses which two engines?

A

REDIS & MEMCACHED

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6
Q

MySQL installations default to port number ________.

A

3306

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7
Q

Which of the following is most suitable for OLAP?

A

REDSHIFT

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8
Q

Which of the following is not a feature of DynamoDB?

A

The ability to store relational based data

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9
Q

In RDS, what is the maximum value I can set for my backup retention period

A

35 DAYS

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10
Q

If I wanted to run a database on an EC2 instance, which of the following storage options would Amazon recommend?

A

EBS

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11
Q

What happens to the I/O operations of a single-AZ RDS instance during a database snapshot or backup?

A

I/O may be briefly suspended while the backup process initializes (typically under a few seconds), and you may experience a brief period of elevated latency.

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12
Q

Which set of RDS database engines is currently available?

A

Oracle, SQL Server, MySQL, PostgreSQL

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13
Q

If you are using Amazon RDS Provisioned IOPS storage with a Microsoft SQL Server database engine, what is the maximum size RDS volume you can have by default?

A

16TB

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14
Q

Each subnet must reside entirely within

A

one Availability Zone and cannot span zones.

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15
Q

The /16 offers

A

65,536 possible addresses.

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16
Q

chief advantage of using VPC endpoints to connect your VPC to services such as S3?

A

Traffic between your VPC and the other service does not leave the Amazon network.

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17
Q

In a default VPC, all Amazon EC2 instances are assigned 2 IP addresses at launch. What are they?

A

A Private IP Address & Public IP Address

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18
Q

An Application Load Balancer must be deployed into at least

A

two subnets.

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19
Q

A VPN connection consists of which of the following components

A

“Customer Gateway” and “Virtual Private Gateway

20
Q

In a custom VPC with new subnets in each AZ, there is a Route that supports

A

communication across all subnets/AZs. Plus a Default SG with an allow rule ‘All traffic, All protocols, All ports, from anything using this Default SG’

21
Q

What is the purpose of an Egress-Only Internet Gateway?

A

Prevents IPv6 based Internet resources initiating a connection into a VPC
AND
Allows VPC based IPv6 traffic to communicate to the Internet

22
Q

IN AMAZON VPC AN INSTANCE DOES NOT

A

RETAIN ITS PRIVATE IP

23
Q

Security groups act like a firewall at the instance level, whereas _________ are an additional layer of security that act at the subnet level

A

NACL

24
Q

You have just created a 2nd VPC and launched an EC2 instance in a subnet of that VPC. You want this instance to be publicly available, but you forgot to assign a public IP address during creation. How might you make your instance reachable from the outside world?

A

Create an Internet gateway and an Elastic IP address. Associate the Elastic IP with the EC2 instance.

25
Q

At which of the following levels can VPC Flow Logs be created?

A

VPC LEVEL
NETWORK INTERFACE LEVEL
SUBNET LEVEL

26
Q

Which of the following are true for Security Groups?

A
  • SECURITY EVALUATE ALL RULES BEFORE DEALING WITH TRAFFIC
  • OPERATE AT THE INSTANCE LEVEL
  • SUPPORT ALLOW RULES ONLY
27
Q

When you create a custom VPC, which of the following are created automaticaly?

A

SECURITY GROUP, ROUTE TABLE, ACL

28
Q

YOU CAN PEER VPCs WITH

A

ANY ACCOUNT, YOUR ACCOUNT, THEIR ACCOUNT, ANY ACCOUNT

29
Q

FULLY MANAGED. MYSQL DB

A

AURORA

30
Q

DYNAMODB STREAMS CAN BE ARN’d WITH A

A

LAMBDA FUNCTION YOU WRITE

31
Q

DYNAMODB STREAMS CAN BE USED TO MONITOR THE CHANGES TO A

A

DYNAMODB TABLE

32
Q

DYNAMODB EXAMPLE:

A

WHEN A PLAYER REACHES TOP SCORE OF A GAME, THE GAMESCORE IS UPDATED AND A CONGRATS MESSAGE IS SENT

33
Q

DYNAMODB IS INTEGRATED WITH

A

LAMBDA

34
Q

COLLECTING REAL TIME LOGS

A

AWS KINESES

35
Q

YOU CAN PACKAGE BATCH PROCESSING APPLICATION INTO A DOCKER IMAGE SO THAT YOU CAN DEPLOY IT ANYWHERE SUCH AS A

A

ECS TASK

36
Q

MONITORING INSTANCES AND RECORDING STATE CHANGES?

A

USE LAMBDA TO STORE A CHANGE RECORD IN DYNAMODB TABLE

37
Q

READ REPLICAS SETUP A

A

READ ONLY DATABASE

38
Q

CONNECT EC2 TO S3 OR ANY AWS RESOURCE TO A AWS RESOURCE

A

VPC ENDPOINTS

39
Q

EBS VOLUME DISASTER

A

REGIONS

40
Q

REGIONS IS A DISATER FIX FOR

A

EBS VOLUMES

41
Q

SAVE A EBS VOLUME BY

A

USING EBS SNAPSHOTS TO CREATE THE VOLUME IN ANOTHER REGION

42
Q

agentless service which makes it easier and faster for you to migrate thousands of on-premises workloads to AWS

A

AWS SNS

43
Q

allows you to automate, schedule, and track incremental replications of live server volumes, making it easier for you to coordinate large-scale server migrations

A

AWS SMS

44
Q

EACH NEW AWS SMS SERVER VOLUME REPLICATED IS SAVED AS A

A

AMI WHICH CAN BE LAUNCHED AS AN EC2 INSTANCE

45
Q

WHAT SERVERS CAN BE MIGRATED TO AWS USING AWS SMS

A

VMWARE VSPHERE AND WINDOWS HYPER-V

46
Q

DELETE UNNECESSARY MANUAL

A

MANUAL SNAPSHOTS TO SAVE MONEY/ BE COST-EFFECTIVE

47
Q

CACHED VOLUMES

A

OFFER CHEAP COTS ON PRIMARY STORAGE AND MINIMIZE THE NEED TO SCALE YOUR STORAGE-ON-PREMISES