What are 2 key facts about EC2 Elastic IP address: - _______ ______ IP address - Associated with a ______ IP address on the instance

- Static Public IP address - Associated with a private IP address on the instance

Compute EC2 Flashcards by Raymond Sylverne

What is the difference between NAT Instance and NAT Gateway?

NAT Gateway is Managed by ____, which adds ____ ____________, and _________

NAT Instance is Managed by ____ and ____ _____ of those things

NAT Gateway is Managed by AWS, which adds High Availability, and Autoscale

NAT Instance is Managed by you and does none of those things

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Amazon EC2 Spot Instances offers Low prices for unused capacity, up to a 90% discount. The downside is that it can be __________ at any time

It is best used for workloads with flexible ______ and ____ times

Amazon EC2 Spot Instances offers Low prices for unused capacity, up to a 90% discount. The downside is that it can be terminated at any time

It is best used for workloads with flexible start and end times

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What are 2 key facts about EC2 Elastic IP address:

_______ ______ IP address
Associated with a ______ IP address on the instance

Static Public IP address
Associated with a private IP address on the instance

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Is AMI a regional service?

You can only launch an AMI in the region it is stored in

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For Linux AMIs, what is the function of the private key file?

It allows you to securely SSH (secure shell) into your intstance

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Amazon EC2 Reserved gives up to a 75% discount; when you commit for 1 or 3 years; and its use cases are ______-_____ __________ workloads, and ________ capacity

Amazon EC2 Reserved gives up to a 75% discount; when you commit for 1 or 3 years; and its use cases are steady-state predictable workloads, and reserved capacity

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A benefit of using AWS Roles is that you don’t have to ____-____ your long-term ________ and protect your instances against ____________ access.

A benefit of using AWS Roles is that you don’t have to hard-code your long-term credentials and protect your instances against unauthorized access.

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Memory-optimized EC2 instances are designed to deliver fast performance for workloads that process

large data sets in memory.

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What happens if you lose your secret access key for AWS CLI? How would you create a new one?

You’ll have to delete it and regenerate a new one

You will need to run AWS configure

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What are the 2 Storage options that can be attached to EC2?

Elastic Block Store (persistent)
Instance Store (non-persistent)

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What type of control do you have with EC2 instances/

Full root/admin access

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An Elastic Fabric Adapter (EFA) is a _________ device that you can attach to your Amazon EC2 instance to accelerate ____-__________ Computing and _______ ________ applications

An Elastic Fabric Adapter (EFA) is a network device that you can attach to your Amazon EC2 instance to accelerate High-Performance Computing (HPC) and Machine Learning applications

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EC2 Placement Groups: Cluster packs instances close together inside an ___________ _____

EC2 Placement Groups: Cluster packs instances close together inside an Availability Zone

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Groups of instances in one partition do not share __________ _______ with groups of different ________

Groups of instances in one partition do not share underlying hardware with groups of different partitions

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EC2 _________ Placement Groups enable workloads to achieve low-latency network performance necessary for _____-________ node-to-node communication that is typical of ___ applications

EC2 Cluster Placement Groups enable workloads to achieve low-latency network performance necessary for tightly-coupled-coupled node-to-node communication that is typical of HPC applications

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While plenty of AWS services offer the ability to scale automatically what is the only service that Auto Scaling Groups apply to?

EC2

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EC2 Elastic IP address can be moved between ________ and Elastic _______ Adaptors

EC2 Elastic IP address can be moved between instances and Elastic Network Adaptors

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Once terminated an EC2 Instance cannot be __________

By default root, EBS volumes are _______ when you __________ an EC2 Instances

Once terminated an EC2 Instance cannot be recovered

By default root, EBS volumes are deleted when you terminate an EC2 Instances

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Instance metadata is data about your instance that you can use to ________ or ________ the running instance.

Instance metadata is data about your instance that you can use to configure or manage the running instance.

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A Bootstrap Script allows you to install applications like Web ______, and _________ along with running ________ _______

A Bootstrap Script allows you to install applications like Web Servers, and Databases along with running software updates

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AWS Roles allow you to provide ______ without the use of ______ ___ IDs and secret ______ ___

AWS Roles allow you to provide access without the use of access key IDs and secret access keys

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Hibernating EC2 instances only applies to __-________ or ________ _________ instances

Hibernating EC2 instances only applies to on-demand or reserved Linux instances

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For Windows AMIs, what is the function of the private key file?

It is required to obtain the password used to log into your instance.

If you make a change to a policy that’s attached to a role how long will it take for the change to be seen?

Immediate

Benefits of Amazon EC2 Security is that it's fully integrated with ______ \_\_\_ and ________ features

Benefit of Amazon EC2 Security is that it's fully integrated with **Amazon VPC and security features**

Between AWS and the customer who is responsible for the Public & Private AWS Keys?

AWS stores a Public key Customer Stores the Private key file

What are the three ways to copy an AMI to a different region?

The Console, CLI, or API

Partition Placement Group are typically used with large **\_\_\_\_\_\_\_\_** and **\_\_\_\_\_\_\_\_** workloads, such as **\_\_\_\_\_\_\_\_**, **\_\_\_\_\_\_\_\_**, and Kafka

Partition Placement Group are typically used with large **distributed** and **replicated** workloads, such as **Hadoop**, **Cassandra**, and Kafka

Storage Optimized EC2 instances provide **\_\_\_ \_\_\_\_\_\_\_** and very high ___ \_\_\_\_\_\_\_\_\_\_\_

Storage Optimized EC2 instances provide **low latency** and very high **I/O performance**

What happens if you have an Elastic IP address and fail to use it?

You will still be charged even if not being used

What is the name of the feature to stop a Spot instance from being terminated?

Spot Block

What happens to the IP addresses when you Stop an EC2 instance with an EBS volume attached to it? - The Private IPv4 addresses and IPv6 addresses are **\_\_\_\_\_\_\_\_** ; public IPv4 addresses **\_\_\_\_\_\_\_\_** - The Associated Elastic IPs **\_\_\_\_\_\_\_\_**

- The Private IPv4 addresses and IPv6 addresses are **retained**; public IPv4 addresses **released** - The Associated Elastic IPs **retained**

A bootstrap script is a script that _only_ **\_\_\_\_** when the EC2 instance first **\_\_\_\_\_\_\_**

A script that **only** **runs** when the EC2 instance first **launches**

Key pairs are used to securely connect to which AWS service?

EC2 instances

User data is data supplied by the user at **\_\_\_\_\_\_\_\_\_ \_\_\_\_\_\_** in form of a **\_\_\_\_\_**

User data is data supplied by the user at **instance launch** in form of a **script**

EC2 Partition Placement Groups spreads your instances across _______ \_\_\_\_\_\_\_

logical partitions

Which type of EC2 instances can be placed into a placement group? (4)

* Compute-optimized * Memory-optimized * Storage-optimized * & GPU

What is the IP address for Metadata & Instance user data?

169. 254.169.254/latest/meta-data/ 169. 254.169.254/latest/user-data

EC2 Spread Placement Groups place a small group of instances across distinct underlying **\_\_\_\_\_\_\_\_** to reduce correlated **\_\_\_\_\_\_\_\_**.

EC2 Spread Placement Groups place a small group of instances across distinct underlying **hardware** to reduce correlated **failures**.

Compute-optimized EC2 instances are ideal for applications that benefit from

high-performance processors.

Private IP address: Retained when the\_\_\_\_\_\_\_ is \_\_\_\_\_\_ Used in ______ and _______ \_\_\_\_\_\_\_

- Retained when the instance is stopped - Used in Public and Private Subnets

If an instance fails these status checks, it is marked unhealthy and is **\_\_\_\_\_\_\_\_\_** while Amazon EC2 Auto Scaling **\_\_\_\_\_\_** a new **\_\_\_\_\_\_\_**.

If an instance fails these status checks, it is marked unhealthy and is **terminated** while Amazon EC2 Auto Scaling **launches** a new **instance**.

An Amazon Machine Image (AMI) contains the following (3) - A template for the ____ volume - Launch \_\_\_\_\_\_\_ - A block device _______ the volumes to attach

- A template for the root volume - Launch Permissions - A block device mapping the volumes to attach

Placement groups cannot be \_\_\_\_\_\_

Placement groups cannot be **Merged**

AWS Nitro System is the **\_\_\_\_\_\_\_\_\_\_\_** platform for the next generation of **\_\_\_ \_\_\_\_\_\_\_\_\_**

AWS Nitro System is the **underlying** platform for the next generation of **EC2 instances**

What are 3 key facts about EC2 Public IP addresses? - __ \_\_\_\_\_\_ - Lost when the instance is \_\_\_\_\_\_\_\_ - Used in _______ Subnets

- No charge - Lost when the instance is stopped - Used in Public Subnets

Amazon EC2 On-Demand Pricing offers standard pricing - no discount; no commitments; and its use cases are (2) Short-term ___________ or ____ environments \_\_\_\_\_\_\_\_\_\_\_\_ workloads

**Short-term Development or Test environments** **Unpredictable workloads**

What are the steps to move an existing instance into a placement group? (3)

* Stop the instance * & Move using CLI or SDK * But it cannot be done via Console

Security group rules for Inbound traffic is **\_\_\_\_\_\_\_** by default

Security group rules for Inbound traffic are **blocked by** default

Is user data and metadata encrypted?

Between Spread, Cluster, and Partition, which of these placement groups can span more than one AZ?

Spread and Partition

When starting an EC2 Instance that was in a hibernated state, all the processes previously running on the instance are **\_\_\_\_\_\_\_** and previously attached **\_\_\_\_ \_\_\_\_\_\_\_** are **\_\_\_\_\_\_\_\_\_\_**

When starting an EC2 Instance that was in a hibernated state, all the processes previously running on the instance are **resumed** and previously attached **data volumes** are **reattached**

You should attach an Enhanced Networking Interface to an EC2 Instance if you need speeds between __ Gbps and ___ Gbps.

You should attach an Enhanced Networking Interface to an EC2 Instance if you need speeds between **10** Gbps and **100** Gbps.

You should attach an Enhanced Networking Interface to an EC2 Instance if having reliable ____ \_\_\_\_\_\_\_\_\_\_\_ is a concern of yours

You should attach an Enhanced Networking Interface to an EC2 Instance if having reliable **High Throughput** is a concern of yours

Security group rules for Outbound traffic it's _______ by default

Security group rules for Outbound traffic, it's **allowed** by default