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SAA-CO2 - AWS Associate Architect > Failed Exam Questions > Flashcards

Failed Exam Questions Flashcards

1
Q

Are you able to access EBS Snapshots using the regular s3 APIs?

A

No. Snapshots are only available through Amazon EC2 APIs.

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2
Q

EC2 is billed by

A

The minute, or the hour.

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3
Q

You have a multi region RDS. The primary instance instances goes down. How does traffic get redirected to a healthy instance?

A

The canonical record is changed from the primary database to the secondary.

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4
Q

Does Dynamo database feature auto scaling?

A

Yes

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5
Q

S3 provides eventual consistency for PUTS and DELETES. True or false?

A

True

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6
Q

You have a web application which uploads videos to s3. However in testing you realise uploads are being blocked. What could you do?

A

Update the CORs configuration of the bucket to allow URLS from the web app url.

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7
Q

You have a version enabled s3 bucket. And you accidentally delete a file from it. How to address this?

A

Remove the delete marker from the file.

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8
Q

You need to move objects from Glacier Deep Arhive. To an S3 bucket with intelligent storage class. How do you do this?

A

Restore the objects from Glacier console. Then copy required objects to intelligent storage class.

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9
Q

What is glacier select

A

Glacier allows you to query items in Glacier via simple SQL. Without actually having to retrieve them.

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10
Q

You want to migrate a bunch of docker containers to AWS. How best to do this?

A

Create EC2 container registries
Installl docker
Upload the containers

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11
Q

What is EC2 hibernation?

A

Hibernation gives you the ability to launch EC2 instances, set them up as desired, hibernate them, and then quickly bring them back to life when you need them. Applications pick up exactly where they left off instead of rebuilding their memory footprint.

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12
Q

What do cloud front signed cookies do?

A

Allow you to control access to files, via a cookie.

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13
Q

To test an AWS lambda function locally. What service would you use?

A

AWS Sam

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14
Q

You want to use an S3 bucket to serve content through a domain name. However requests are failing. Why might this be?

A

CORS has not been configured.

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15
Q

What does CORS mean?

A

Cross origin resource sharing

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16
Q

You want to move one AWS account, from an organisation to another organisation. How to do this?

A

Remove the account from the old organisation.

Send an invited from the new organisation, and accept it via the account.

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17
Q

When launching an EC2 instance. You want to download all the latest patches. How best to do this?

A

Write scripts to do so, and add them tot he used data section when launching the EC2 instance.

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18
Q

You have an application with EC2s in three availability zones. They sit behind a load balancer.

If one availabilty zone goes down. You still require 100% compute power. How do you achieve this.

A

Set peak load to 50% in each availability zone.

Your baseline is now 150%. If you lose an AZ. It drops to 100%.

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19
Q

You create a VPC to include an internet facing application, and a intranet internal application.

How many subnets do you need for best practise.

A

6

3 for the internet app, 3 for the internal intranet.

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20
Q

You need to move a master account from one organisation to another. How to do this?

A

Make sure all the member accounts have moved first.

Then send an invite from one account to another.

21
Q

You have a development and a production environment in your VPC.

You don’t want those working on your dev server to have access to the prod server. How might you do this?

A

Define tags on development and production servers. Then add a condition to the IAM policy based on these tags.

22
Q

You have enabled cloud trail logs for your companies AWS account. The Head of IT has asked you to ensure logs are encrypted. What to do?

A

Nothing. The logs are encrypted by default.

23
Q

You have an EC2 instance in a set region. You have been asked to make a disaster recovery solution for if that region should fail. What to do?

A

Create a snapshot and copy it to another region.

24
Q

What’s the default retention time for a kenisis stream?

A

24 hours.

25
Q

What route 53 routing type, would you use with blue-green deployments?

A

Weighted

26
Q

You need to create a NAT gateway so your database can download patches to the internet. Do you connect the NAT gateway to the private or public subnet?

A

Public. It must be public.

27
Q

What service would you use to store docker images?

A

ECR

28
Q

Can you have different storage classes. On different folders in the same bucket?

A

Yes.

29
Q

What does ALB slow start mode do?

A

Gives targets time to warm up before sending data to them.

30
Q

Can you scale an ELB?

A

No. You create a snapshot, add create a larger volume from it.

31
Q

True or false. New EBS volumes created from scratch receive maximum performance immediately and do not need initilisation?

A

True

32
Q

True or false. New EBS volumes created from snapshots need to be initialised before they can be read from?

A

True

33
Q

Does AWS support BYOL for oracle?

A

Yes

34
Q

What is an effective way, to determine what security group rules are unused?

A

Analysing active network traffic using VLC flow logs.

35
Q

When does the bill process for EC2 begin

A

As soon as it launches.

Literally the moment the boot sequence begins.

36
Q

You create an EC2 instance using the launch wizard. But don’t specify a security group. What does AWS do?

A

Creates one security group for the instance.

37
Q

What does Raid 0 do?

A

Splits data evenly across two or more disks.

38
Q

When a user moves an object to a glacier achieve from an s3 bucket, glacier adds extra storage for meta data. Is this charged for?

A

Yes it is.

39
Q

You create an EBS snapshot. Does the snapshot include all blocks, or just written blocks?

A

Just written ones.

40
Q

Who is responsible for EC2 patches. The user or AWS?

A

The user

41
Q

When might you scale vertically?

A

When you can be sure you will be receiving a prolonged, and consistent volume of traffic.

42
Q

With detailed monitoring enabled on an EC2 instance. How often is metric data sent to cloud watch?

A

Every minute.

43
Q

Is EBS considered scalable?

A

Nope.

44
Q

Can auto scaling span multiple regions?

A

Nope.

45
Q

Is billing region specific?

A

Nope

46
Q

With versioning enabled. Can you store all previous versions of an object in infrequent access?

A

Nope.

47
Q

At what level can s3 access control lists be applied

A

Bucket and object

48
Q

Can you control access to an s3 bucket based on network sub mask?

A

No

SAA-CO2 - AWS Associate Architect (47 decks)

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