Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

aws - to study stephane mareek's course > AWS Sections 1 through 6 > Flashcards

AWS Sections 1 through 6 Flashcards

Review concepts from sections 1 through 6 of Stephane Maarek's AWS Certified Developer Associated DVA C01 course (Section 1: Course Intro, Section 2: Code & Slides Download, Section 3: Getting started with AWS, Section 4: IAM & AWS CLI, Section 5: EC2 Fundamentals, and Section 6: EC2 Instance Storage). Most of these sentences are (or are basically) Stephane's exact words.

1
Q

What is a proper definition of an IAM Role?

A

An IAM entity that defines a set of permissions for making requests to AWS services, and will be used by an AWS service

Some AWS services need to perform actions on your behalf. To do so, you assign permissions to AWS services with IAM Roles.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Which of the following is an IAM Security Tool?

  • IAM Credentials Report
  • IAM Root Account Manager
  • IAM Services Report
  • IAM Security Advisor
A

IAM Credentials Report

IAM Credentials report lists all your AWS Account’s IAM Users and the status of their various credentials.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Which answer is INCORRECT regarding IAM Users?

A

IAM Users access AWS services using root account credentials

IAM Users access AWS services using their own credentials (username & password or Access Keys).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Which of the following is an IAM best practice?

A

Don’t use the user account

Use the root account only to create your first IAM User and a few account/service management tasks. For everyday tasks, use an IAM User.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are IAM Policies?

A

JSON documents that define a set of permissions fo rmaking requests to AWS services, and can be used by IAM Users, User Groups, and IAM Roles

no footnote

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Which principle should you apply regarding IAM Permissions?

A

Grant Least Privilege

That’s right! Don’t give more permissions than the user needs.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What should you do to increase your root account security?

A

Enable Multi Factor Authentication

When you enable MFA, this adds another layer of security. Even if your password is stolen, lost, or hacked your account is not compromised.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

IAM User Groups can contain IAM Users and other User Groups.

True or False

A

False

IAM User Groups can contain only IAM Users.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

An IAM policy consists of one or more statements. A statement in an IAM Policy consists of the following, EXCEPT:

A

Version

A statement in an IAM Policy consists of Sid, Effect, Principal, Action, Resource, and Condition. Version is part of the IAM Policy itself, not the statement.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

According to the AWS Shared Responsibility Model, which of the following is AWS responsibility?

A

AWS Infrastructure

no footnote

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Which instance/initial letter pair naming convention:

in the course, we use the t2.micro

A

General Purpose. No set initial letter! (T, M, and A currently seen)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Describe ec2 instance naming convention

m5.2xlarge

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

EC2 Instance Types

not entirely sure the exam asks questions like this one

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Which EC2 Instance type has the following characteristics?

Options: General Purpose, Compute Optimized, Memory Optimized, Accelerated Computing, Storage Optimized, Instance Features, Measuring Instance Performance

A

General Purpose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Which EC2 Instance type has the following characteristics?

Options: General Purpose, Compute Optimized, Memory Optimized, Accelerated Computing, Storage Optimized, Instance Features, Measuring Instance Performance

A

Compute Optimized

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Which EC2 Instance type has the following characteristics?

r6g

Options: General Purpose, Compute Optimized, Memory Optimized, Accelerated Computing, Storage Optimized, Instance Features, Measuring Instance Performance

A

Memory Optimized

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Which EC2 Instance type has the following characteristics?

Options: General Purpose, Compute Optimized, Memory Optimized, Accelerated Computing, Storage Optimized, Instance Features, Measuring Instance Performance

A

Storage Optimized

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What are the associated port numnbers?

A

22, 21, 22, 80, 443, 3389

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What are the associated usages of the following port numbers?
22, 21, 22, 80, 443, 3389

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What are we looking at here?

Also, read what’s in the picture!

A

EC2 Instances Purchasing Options

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What type of EC2 Instance Purchase option is this?

discount numbers illustrative and changing
Options:
On Demand Instances; Reserved (Reserved Instances; Convertible Reserved Instances); Savings Plans; Spot Instances; Dedicated Hosts; Dedicated Instances; Capacity Reserverations

A

EC2 On Demand

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What type of ec2 instance purchase option is this?

discount numbers illustrative and changing
Options:
On Demand Instances; Reserved (Reserved Instances; Convertible Reserved Instances); Savings Plans; Spot Instances; Dedicated Hosts; Dedicated Instances; Capacity Reserverations

A

EC2 Reserved Instance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What type of ec2 instance purchase option is this?

discount numbers illustrative and changing
On Demand Instances; Reserved (Reserved Instances; Convertible Reserved Instances); Savings Plans; Spot Instances; Dedicated Hosts; Dedicated Instances; Capacity Reserverations

A

ec2 Savings Plan

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

what type of ec2 instance purchase option is this?

discount numbers illustrative and changing
On Demand Instances; Reserved (Reserved Instances; Convertible Reserved Instances); Savings Plans; Spot Instances; Dedicated Hosts; Dedicated Instances; Capacity Reserverations

A

ec2 Spot Instance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What type of ec2 instance purchase option is this?

discount numbers illustrative and changing
On Demand Instances; Reserved (Reserved Instances; Convertible Reserved Instances); Savings Plans; Spot Instances; Dedicated Hosts; Dedicated Instances; Capacity Reserverations

A

ec2 Dedicated Hosts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

What type of ec2 instance purchase option is this?

On Demand Instances; Reserved (Reserved Instances; Convertible Reserved Instances); Savings Plans; Spot Instances; Dedicated Hosts; Dedicated Instances; Capacity Reserverations

A

EC2 Dedicated Instance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

What type of ec2 instance purchase option is this?

On Demand Instances; Reserved (Reserved Instances; Convertible Reserved Instances); Savings Plans; Spot Instances; Dedicated Hosts; Dedicated Instances; Capacity Reserverations

A

EC2 Capacity Reservations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Which EC2 Purchasing option matches up with which resort analogy?
* coming in and staying in resort whenever we like, we pay the full price
* like planning ahead and if we plan to stay for a long time, we may get a good discount
* pay a certain amount per hour for certain period and stay in any room type (e.g., King, Suite, Sea View…)
* the hotel allows people to bid for the empty rooms and the highest bidder keeps the rooms. you can get kicked out at any time if someone else comes up with a higher bid
* we book an entire building of the resort
* you book a room for a period with full price even if you don’t stay in it

Options: savings plans; on demand; capacity reservations; reserved; spot instances; savings plans; dedicated hosts

A

on demand; reserved; savings plans; spot instances; dedicated hosts; capacity reservations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Which EC2 Purchasing Option can provide you the biggest discount, but it is not suitable for critical jobs or databases?
* Convertible Reserved Instances
* dedicated Hosts
* Spot Instances

A

Spot Instances!

Spot Instances are good for short workloads and this is the cheapest EC2 Purchasing Option. But, they are less reliable because you can lose your EC2 instance.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

What should you use to control traffic in and out of EC2 instances?
* Network Access Control List (NACL)
* Security Groups
* IAM Policies

A

Security Groups!

Security Groups operate at the EC2 instance level and can control traffic.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

How long can you reserve an EC2 Reserved Instance?
* 1 or 3 years
* 2 or 4 years
* 6 months or 1 year
* Anytime between 1 and 3 years

A

1 or 3 years!

EC2 Reserved Instances can be reserved for 1 or 3 years only.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

You would like to deploy a High-Performance Computing (HPC) application on EC2 instances. Which EC2 instance type should you choose?
* Storage Optimized
* Memory Optimized
* Compute Optimized
* General Purpose

A

Compute Optimized!

Compute Optimized EC2 instances are great for compute-intensive workloads requiring high-performance processors (e.g., batch processing, media transcoding, high-performance computing, scientific modeling & machine learning, and dedicated gaming servers).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

Which EC2 Purchasing Option should you use for an application you plan to run on a server continuously for 1 year?
* On-Demand Instances
* Spot Instances
* Reserved Instances

A

Reserved Instances!

Reserved Instances are good for long workloads. You can reserve EC2 instances for 1 or 3 years.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

You are preparing to launch an application that will be hosted on a set of EC2 instances. This application needs some software installation and some OS packages need to be updated during the first launch. What is the best way to achieve this when you launch the EC2 instances?
* Connect to each EC2 instance using SSH, then install the required software and update your OS packages manually
* Write a bash script that installs the required software and updates to your OS, then use this script in EC2 User Data when you launch your EC2 instances
* Write a bash script that installs the required software and updates to your OS, then contact AWS SUuport and proved them with the script. They will run it on your EC2 instances at launch

A

Write a bash script that installs the required software and updates to your OS, then use this script in EC2 User Data when you launch your EC2 instances

EC2 User Data is used to bootstrap your EC2 instances using a bash script. This script can contain commands such as installing software/packages, download files from the Internet, or anything you want.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

Which EC2 Instance Type should you choose for a critical application that uses an in-memory database?
* Compute Optimized
* Storage Optimized
* Memory Optimized
* General Purpose

EC2 Fundamentals Quiz

A

Memory Optimized!

Memory Optimized EC2 instances are great for workloads requiring large data sets in memory.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

You have an e-commerce application with an OLTP database hosted on-premises. This application has popularity which results in its database has thousands of requests per second. You want to migrate the database to an EC2 instance. Which EC2 Instance Type should you choose to handle this high-frequency OLTP database?
* Compute Optimized
* Storage Optimized
* Memory Optimized
* General Purpose

EC2 Fundamentals Quiz

A

Storage Optimized

Storage Optimized EC2 instances are great for workloads requiring high, sequential read/write access to large data sets on local storage.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

Security Groups can be attached to only one EC2 instance.
* True
* False

EC2 Fundamentals Quiz

A

False

Security Groups can be attached to multiple EC2 instances within the same AWS Region/VPC.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

You’re planning to migrate on-premises applications to AWS. Your company has strict compliance requirements that require your applications to run on dedicated servers. You also need to use your own server-bound software license to reduce costs. Which EC2 Purchasing Option is suitable for you?
* Convertible Reserved Instances
* Dedicated Hosts
* Spot Instances

EC2 Fundamentals Quiz

A

Dedicated Hosts!

Dedicated Hosts are good for companies with strong compliance needs or for software that have complicated licensing models. This is the most expensive EC2 Purchasing Option available.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

You would like to deploy a database technology on an EC2 instance and the vendor license bills you based on the physical cores and underlying network socket visibility. Which EC2 Purchasing Option allows you to get visibility into them?
* Dedicated Hosts
* Spot Instances
* On-Demand
* Reserecd Instances

EC2 Fundamentals Quiz

A

Dedicated Hosts

No footnote

40
Q

What is an EBS Volume

A

An Elastic Block Store Volume is a network drive you can attach to your EC2 instances while they run. You can attach multiple EBS volumes to one instance (though on the practionioner test, they say you can only attach one EBS volume to an instance).

It’s kind of like a usb stick. you assign it GBs and can do IOPs though idk what OPs are. you can also configure your EBS volume so it does or does not delete upon instance termination.

it allows for persistant data, even after instance termination.

they are bound to a specific availability zone, but you can detach an EBS volume from one instance and attach it to another easily

EC2 Instance Storage

41
Q

An __________ Volume is a network drive you can attach to your EC2 instances while they run. You can attach multiple ___ volumes to one instance (though on the practionioner test, they say you can only attach one ___ volume to an instance).
It’s kind of like a usb stick. you assign it GBs and can do IOPs though idk what IOPs are. you can also configure your ___ volume so it does or does not delete upon instance termination.

it allows for persistant data, even after instance termination.

they are bound to a specific availability zone, but you can detach an ___ volume from one instance and attach it to another easily

A

Elastic Block Storage (first answer)
EBS (subsequent answers)

EC2 Instance Storage

42
Q

How do you move an EBS volume from one instance to another?

A

you take a snapshot of it!

EC2 Instance Storage

43
Q

do you get billed for all provisioned capacity of an EBS volume?

A

yes

ec2 instance storage

44
Q

Can you increase the capacity of an EBS volume over time?

A

Yes

EC2 instance storage

45
Q
  • Move a snapshot to an ___ that is 75% cheaper
  • takes within 24 to 72 hours to restore the ___
A

archive tier
archive

ec2 instance storage

46
Q

What is name of the thing used to retain deleted snapshots that allows you to recover them after deletion? How long can you retain snapshots?

A

recycle bin, 1 day to 1 year

ec2 instnace storage

47
Q

What do you call it when you force full initialization of an EBS snapshot to have no latency on the first use? What is a drawback of using this process?

A

Fast Snapshot Restore (FSR). It’s very expensive.

ec2 instance storage

48
Q

Get from an ec2 instance to a snapshot.

A

You have an ec2 instance. you can attach an EBS volume to it (like a modifiable usb stick). If want to preserve an inactive copy of your ebs volume (ex: you no longer need your EBS volume to be active but you don’t want to delete, or you want to use it for a different instance in a different region (which is bigger than an avability zone)), then you take a snapshot of your ebs volume (which basically sounds like you’re making a zipfile of a usb stick that you use for your ec2 instance (though since they never actually said it was a .zip file or that any kind of data compression system was being used. it’s possible that what’s happening is your ebs volume is just moved to a place that is super slow to get to. or both). I think after this, if you wanted to, you could go ahead and delete your ebs volume.

ec2 instance storage

49
Q

You have your own software, configuraiton, operating system, monitoring that you want to use for several ec2 instances. What is the name of customized ec2 instances? Do you get faster or slower boot/configuration for using this (i mean after the first one)

A

Amazon Machine Image (AMI). faster boot/config. build for a specific region and can be copied accross regions.

it sounds like a docker image. or containerizationn system or whatever.

side note, you can luanch ec2 instances from public ami’s (like the aws one we use!) your own ami, an aws marketplace ami

ec2 instance storage

50
Q

You want to attach some extra storage to your ec2 instance. You need this storage to have high performance (or perform highly with your ec2 instance?) do you use an EBS volume or a an EC2 Instance Store?

A

EC2 Instance Store

ec3 instance storage

51
Q

Regarding EC2 Instance Storage, which of the following is the network drive and which is the high-performance hardware disk: EBS volume; EC2 Instance Store

A

Network Drive: EBS Volume
hardware disk: ec2 instance store

a network drive is something you hook up to your wifi (or I suppose ethernet)network and then everything on your network gets access to whatevers in that network drive.

a hardware disk is like something you physically connect to I think like a single machine.

ec2 instance storage

52
Q

EC2 storage: do EBS volumes of or EC2 Instance Stores have the following characteristics:
* better i/o performance
* ephemerality (lost their storage if stopped)
* good for buffer/cache/scratch data/temp content
* risk of data loss if hardware fails
* backups/replication are your responsiblity

A

EC2 Instance Store

ec2 instance storage

53
Q

EC2 storage: do EBS volumes of or EC2 Instance Stores have the following characteristics:
* better i/o performance
* ephemerality (lost their storage if stopped)
* good for buffer/cache/scratch data/temp content
* risk of data loss if hardware fails
* backups/replication are your responsiblity

A

EC2 Instance Store

ec2 instance storage

54
Q

What are these? (and what’s the word that’s been blanked out?)
* gp2/gp3 (SSD): General purpose SSD ____ that balances price and perofrmanec for a variety of workloads
* io1/io2 (SSD) highest performance SSD ____ for mission critical low-latency or high-throughput workloads (aka provisioned iops?)
* st 1 (HDD) low cost HDD ____ designed for frequency accessed, throughput-intensive workloads
* sc 1 (HDD): lowest cost HDD ____ designed for less frequency accessed workloads

A

These are EBS volume types

EC2 Instance Storage

55
Q

Are EBS volumes characterized by size, throughput, and IOPS (i/o ops per sec)

A

yes

ec2 instnace storage

56
Q

which of the following four ebs volume types can be used as boot volumes? (not sure this quesiton is actually that important):
* gp2/gp3
* io 1/ io 2 (aka provisioned iops?)
* st 1
* sc 1

A

gp2/gp3
io 1/io 2

ec2 instance storage

57
Q

Which ebs volume types have the following characteristics?

  • cost effective storage, low-latency
  • system boot volumes, virtual desktops, dev and test servers
  • 1GiB - 16 TiB

options: gp2/gp3, io1 / io2, st 1, sc 1

A

gp2/gp3

ec2 instane storage

58
Q

which ebs volume type do you use when you want
* cost effective storage, low-latency
* system boot volumes, virtual desktops, dev and test servers
* 1GiB - 16 TiB
* the ability to independently select volume and IOPS

A

gp3. That’s the main difference between gp2 and gp3, that it’s only in gp3 that you can independently select volume and IOS, in gp2 they’re linked. Also, gp3 has more iops/throughout or something.

ec2 instance storage

59
Q

Which ebs volume type do you use when you have:
* critical business apps with sustained iops performance
* apps that need more than 16000 iops
* database workloads (sensitive to storage performance and consistency)
* ebs multi attach
* 4 GiB to 16 TiB (block express version is 4GiB to 64 TiB)
* 64000 IOPS (using nitro ec2) 32000 for everyting else (Block version of this is max PIOPS of 256000 IOPS with IOPS:GiB ratio of 1000:1)
* can increase piops independently from storage size

A

Provisioned IOPS (PIOPS) aka io 1/ io 2

ec2 instance storage

side note: io2 has more durability and more IOPS per GiB at the same price as io1, so if you’re going to use one of these, just use io2

60
Q

Which ebs volume type has the following characteristics?

  • cannot be a boot volume
  • 125 GiB to 16 Tib
  • max throughput 500 MiB/s max IOPS 500
  • big data, data warehouses, log processing
A

st1

ec2 instance storage

this one seems minimally important

61
Q

Which ebs volume type has the following characteristics?

  • cannot be a boot volume
  • 125 GiB to 16 Tib
  • max throughout 250 MiB/s max IOPS 250
  • for data that is infrequently accessed
  • lowest cost is important
A

sc1

ec2 instance storage

this one seems minimally important

62
Q

What EBS feature am I?
* Attach the same EBS volume to multiple EC2 instances in the same AZ
* Each instance has full read and write permissions to the high-performance volume.
* Use case 1: achieve higher app availability in clustered Linux applications (ex: Teradata)
* Use case 2: Apps must manage concurrent write operations
* Can be connected to up to 16 EC2 Instances at a time
* Must use a file system that’s cluster-aware (not XFS, ECT4 etc (no idea what these things are))

A

EBS Multi Attach - io 1 io 2 family

ec2 instance storage

63
Q

With which EBS volume type can you use Multi Attach?

options: gp2/gp3, io1 / io2, st 1, sc 1

A

io1/io2

64
Q

Up to how many EC2 instances can you attach an EBS multi attach (again, io 1/io2) family

A

16

ec2 instance storage

65
Q

What does EFS stand for and to what can EFs’s be mounted?

A

Elastic File System. They can be mounted to many EC2 instanes.

ec2 instance storage

66
Q

When should you use EFS and what choices will you have to make when creating your EFS?

A

anna’s guess: when you want to do content management, web serving, data sharing, host a Wordpress site.

Choices include: storage class; performance mode; throughput mode

ec2 instance storage
https://docs.aws.amazon.com/efs/latest/ug/performance.html#storage-perf

67
Q

What EC2 Instance storage solution has the following characteristics:
* Managed network file system that can be mounted on many EC2 instances
* works with EC2 instances in multi-az
* highly avialable, scalable, expensive (3x cost gp2), pay per use

A

EFS - Elastic File System

EC2 Instance Storage

68
Q

Which ec2 instance storage solution has the following characteristics:
* Use cases: content management, web serving, data sharing, Wordpress
* Uses NSFv4.1 protocol
* uses security group to control access
* compatible with Linux based AMI (not windows)
* encryption at rest using KMS
* POSIX file system (~Linux) that has a standard file API
* scales automatically, pay per use, no capacity planning

A

Elastic File System

EC2 Isntance storage

69
Q

What EFS Performance class has the following characteristics:
* 1000’s of concurrent NFS clients, 10 gb+ /s throughput
* grow to petabyte scale network file system automatically

not even sure this is an option anymore

A

EFS scale

EC2 instance storage

70
Q

What EFS characteristic gives you the following choices?

  • General Purpose (default) - latency-sensitive use cases (web server, CMS (content management systems), etc)
  • Max I/O - higher latency, throughout, highly parallel (big data, media processing)
A

Performance Mode (set at EFS creation time)

ec2 instance storage

71
Q

What EFS option gives you the following choices?

  • Bursting - 1TB = 50 MiB’s + burst. ofup to 100 MiB/s
  • Provisioned - set our throughout regardless of storage size, ex: 1 GiB/s for 1 TB storage
  • Elastic. -automatically scales throughput up or down based on your workloads (up to 3 GiB/s for reads and 1GiB/s for writes; used for unpredicatable workloads)

When we went though the hands on, Provisioned showed up on his screen but not mine. Elastic showed up on niether. What i did see was the option “Enhanced”.

Enhanced: Provides more flexibility and higher throughput levels for workloads with a range of performance requirements.

A

Throughput Mode

EC2 instance storage

72
Q

What EFS feature has the following options (only three words (ignoring case) are used to fill in all the following blanks):

“To use the EFS Standard and Standard–IA __1__ create a file system that stores data redundantly across multiple Availability Zones in an AWS Region. To do this when creating a file system using the AWS Management Console, choose ____2__, and then choose Standard.

To use the Standard–IA ____3____, you must enable the Amazon EFS lifecycle management feature. When enabled, lifecycle management automates moving files from Standard ___4___ to IA ___5___. When you create a file system using the console, Lifecycle management is enabled by default with a setting of 30 days since last access. For more information, see Amazon EFS lifecycle management.

To use the EFS One Zone and One Zone–IA ____6____, you must create a file system that stores data redundantly within a single Availability Zone in an AWS Region. To do this when creating a file system using the console, choose Availability and Durability, and then choose One Zone.

To use the One Zone–IA ____7____, you must enable the Amazon EFS lifecycle management feature. When enabled, lifecycle management automates moving files from Standard___8____ to IA ___9___. When you create a file system using the console, Lifecycle management is enabled by default with a setting of 30 days since last access. For more information, see Amazon EFS lifecycle management.”

link to place where quote was found includes major hint, so that was placed in the answer

A
  1. storage classes
  2. Storage class
  3. storage class
  4. storage
  5. storage
  6. storage classes
  7. storage class
  8. storage
  9. storage

https://docs.aws.amazon.com/efs/latest/ug/storage-classes.html

ec2 instance storage

73
Q

What EFS characteristic gives you the following choices?
* Standard: multi-AZ, great for prod; infrequency access option (aka Standard-Infrequenct Access storage class)
* One Zone: One AZ, great for dev, backup enabled by default, compatible with IA (EFS One Zone-IA (infrequenct access option))
* over 90% in cost savings

A

Storage classes (used to be also known as Availability and Durablity, but I don’t think that’s a thing anymore)

ec2 instance storage

74
Q

hey side note, are IAM user groups and ec2 security groups the same thing?

A

nope. You make one type using an IAM user groups ui (or cli, i suppose) and another type using an ec2 security groups ui (probably also could be done using cli)

75
Q

What does a Dedicated Host enable you to do that a Dedicated Instance cannot?

A

“An important difference between a Dedicated Host and a Dedicated instance is that a Dedicated Host gives you additional visibility and control over how instances are placed on a physical server, and you can consistently deploy your instances to the same physical server over time. As a result, Dedicated Hosts enable you to use your existing server-bound software licenses and address corporate compliance and regulatory requirements.”
https://aws.amazon.com/ec2/dedicated-hosts/

76
Q

What is the difference between a dedicated host and a dedicated instance?

A

A dedicated host is a physical machine that is yours. if you start and start your instance, it gets restarted on the same physical machine as last time.

i think (though it has been difficult to really get a feel for this) a dedicated instance is a like you use part of the whole machine, and only other non-dedicated instances on your account can use that machine at the same time, but if you start and stop your dedicated instance, you could very well be started on a new machine.

77
Q

If all you knew was that a customer had one of the following, which ec2 instance type would you recommend?

Batch jobs; data analysis; image processing; any distributed workloads; workloads with flexible start and end times

On Demand Instances; Reserved (Reserved Instances; Convertible Reserved Instances); Savings Plans; Spot Instances; Dedicated Hosts; Dedicated Instances; Capacity Reservations

A

Spot instance

78
Q
A

Correct answer is C. Availability zone “EBS Volumes are created for a specific AZ. It is possible to migrate them between different AZs using EBS Snapshots.”. No other answer choices have notes.

ec2 instance storage quiz

79
Q
A

Correct answer is B. “By default, the Root volume type will be deleted as its Delete On Termination attribute is checked by default. Any other EBS volume types will not be deleted as its Delete On Termination attribute is disabled by default.”. Two of the incorrect answer choices did not have notes.

ec2 instance storage quiz

80
Q
A

Correct answer is B. False. “AMIs are built for a specific AWS Region, they’re unique for each AWS Region. You can’t launch an EC2 instance using an AMI in another AWS Region, but you can copy the AMI to the target AWS Region and then use it to create your EC2 instances.”

ec2 instance storage quiz

81
Q
A

ec2 instance storage quiz

82
Q
A

Correct answer is A: gps and ios. “When creating EC2 instances, you can only use the following EBS volume types as boot volumes: gp2, gp3, io1, io2, and Magnetic (Standard).”. incorrect answer choices did not have notes.

ec2 instance storage quiz

83
Q
A

Correct answer is C. same az. “Using EBS Multi-Attach, you can attach the same EBS volume to multiple EC2 instances in the same AZ. Each EC2 instance has full read/write permissions.”. Incorrect answer choices did not have notes.

ec2 instance storage quiz

84
Q
A

correct answer choice is C: increase ebs volume sizes (which is something you cannot do) “For EBS gp2 volumes, it has max. IOPS of 16,000 or equivalent 5334 GB”.

ec2 instance storage quiz

85
Q
A

Correct answer is C: use EFS. “EFS is a network file system (NFS) that allows you to mount the same file system on EC2 instances that are in different AZs.
“

ec2 instance storage quiz

86
Q
A

Correct answer is A. “EC2 Instance Store provides the best disk I/O performance.
“. Honestly the incorrect answers had notes but I didn’t feel like copying them.

ec2 instance storage quiz

87
Q
A

Correct answer is A. Use an ec2 instance store. “EC2 Instance Store provides the best disk I/O performance.”. Did not check notes on incorrect answer choices.

ec2 instance storage quiz

88
Q

Are these availability zones or available regions?

A

Available regions. Note the lack of trailing letters (don’t end in 1a or 2b etc)

89
Q

Is this accurate: region > availability zone > local zone > aws outpost > wavelength zone

A

No. I think aws outpost doesn’t really belong on the list, and if it does, it belongs at the end. It’s about making an on premise data or commuting center more closely tied to aws. It’s the kind of thing a contracting research lab or company might need. Otherwise, I think so. Though it’s possible local zone and wavelength are more at the same level but for different things. But otherwise yes, it’s a good list

90
Q

What is an aws region? What is one example?

A

Each Region is a separate geographic area. us-east-1.

91
Q

What is an availability zone? Example?

A

Availability Zones are multiple, isolated locations within each Region. us-east-1a.

92
Q

What is a local zone? Example?

A

AWS Local Zones place compute, storage, database, and other select AWS services closer to end-users. With AWS Local Zones, you can easily run highly-demanding applications that require single-digit millisecond latencies to your end-users such as media & entertainment content creation, real-time gaming, reservoir simulations, electronic design automation, and machine learning.

us-east-1-atl-1a.

93
Q

What is a wavelength zone?

A

Wavelength Zones allow developers to build applications that deliver ultra-low latencies to 5G devices and end users. Wavelength deploys standard AWS compute and storage services to the edge of telecommunication carriers’ 5G networks. Idk if I can find an example.

94
Q

What is an aws outpost

A

AWS Outposts brings native AWS services, infrastructure, and operating models to virtually any data center, co-location space, or on-premises facility.

95
Q

What are ec2 capacity reservations?

A

On-Demand Capacity Reservations enable you to reserve compute capacity for your Amazon EC2 instances in a specific Availability Zone for any duration. Capacity Reservations mitigate against the risk of being unable to get On-Demand capacity in case there are capacity constraints. If you have strict capacity requirements, and are running business-critical workloads that require a certain level of long or short-term capacity assurance, we recommend that you create a Capacity Reservation to ensure that you always have access to Amazon EC2 capacity when you need it, for as long as you need it.

aws - to study stephane mareek's course (24 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions