Term
Topic: networking with EC2
ENI network device |
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Definition
| For basic networking. Low cost option. |
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Term
Topic: Networking with EC2
Enhanced Networking |
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Definition
| Device used when you need speeds between 10 gbps and 10 gbps. Anywhere you need reliable, high throughput for EC2 |
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Term
Topic: Networking with EC2
EFA (Elastic Fabric Adapter) |
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Definition
| Networking device used when you need to accelerate High Performance Computing and ML applications, or if you need to do an OS-bypass. If you see a scenario question on the exam mentioning HPC or ML asking what network adapter you want, choose EFA. |
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Term
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Definition
Used for EC2 to get low network latency, high network throughput
Cannot span across AZs ; spread and partition can |
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Term
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Definition
| Individual critical EC2 instances that cannot be in the same group. They work independently of each other and are spread out from one another on separate hardware. Good for smaller number of critical instances. |
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Term
| Partition Placement Groups |
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Definition
| When you have multiple EC2 instances that are on completely separate racks. For larger deployments. HDFS, HBase, and Cassandra technologies will be on partition placement groups |
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Term
| What instances can be launched in a placement group? |
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Definition
| only certain types: compute optimized, GPU, memory optimized, storage optimized |
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Term
| Can EC2 placement groups be merged? |
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Definition
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Term
| Can you move an existing EC2 instance into a placement group, and if so, how? |
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Definition
| Yes. Before you move the instance, it must be in the stopped state. You can move or remove an instance using the AWS CLI or an AWS SDK, but you can't do it in via the console yet. |
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Term
| How do you extend AWS to your data center? |
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Definition
| AWS Outposts. AWS Outposts Rack for large deployments and Servers for smaller dpeloyments |
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Term
| Elastic Block Storage (EBS) |
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Definition
| A virtual hard disk that is attached to EC2 instances; used for storage of apps, Operating Systems, and data. |
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Term
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Definition
- Production workloads and mission critical data ready
- Highly available to protect against hardware failures. EBS volumes exist across multiple disks in multiple data centers in 1 AZ
- Scalable - capacity can be increased or decreased based on your storage needs without any downtime or performance impact |
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Term
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Definition
- used to install operating systems (boot volumes)
- basically the default EBS volume to use when you launch an EC2 instance because it installs the operating system
- offers high performance at a low cost |
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Term
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Definition
- type of EBS volume
- the high performance option and most expensive
- use if you need more than 16K IOPS
- designed for high I/O-intensive workloads |
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Term
| Throughput Optimized Hard Disk Drive (HDD) |
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Definition
EBS Volume that is low-cost HDD volume. Used for big data, data warehouses, ETL, and log processing
Cannot be a boot volume |
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Term
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Definition
Lowest EBS volume cost option available. Good for colder data requiring fewer scans per day and for apps that need the lowest cost and performance is not a factor
Cannot be a boot volume |
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Term
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Definition
| think IOPS when there is a transaction. IOPS supports the ability to action reads and writes very quickly |
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Term
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Definition
| Think the ability to deal with large data sets like datawarehousing, ETL, big data - measures the number of bits read or written per second MB/s |
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Term
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Definition
| Preserves in-memory RAM on persistent storage (EBS). Data contents of the instance are stored in the root volume of EBS until the instance is turned back on. |
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Term
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Definition
Elastic File System
- supports the Network File System version 4 protocol (NFSv4)
- good for content management, web servers, and shared files
- data is stored across multiple AZs within a region
- scale up to petabytes
- only pay for storage you use |
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Term
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Definition
| When you need distributed, highly resilient storage for Linux instances and Linux-based applications |
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Term
| When do you use FSx for Windows? |
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Definition
| When you need centralized storage for Windows-based applications, such as SharePoint, MSFT SQL Server, Workspaces, IIS Web Server or any other native MSFT application |
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Term
| When do you use FSx for Lustre? |
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Definition
| When you need high-speed, high-capacity distributed storage. This will be for applications that do HPC, financial modeling, etc. Remember that FSx for Lustre can store data directly on S3. |
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