Tutorial Dojo Flashcards
AWS Transit Gateway provides ___ design for connecting VPCs and on-premise networks.
Hub and Spoke
Hybrid Connectivity (VPN/Direct Connect) to a single ____ to control organization’s entire AWS routing.
Transit Gateway
Hub and spoke simplifies management and cost because ____ only connect to ____ to gain access to networks
Transit Gateways/VPCs
AWS TG and AWS _____ solution simplify management of connections between AVPC and your network over a _____. It also minimizes network costs, improves bandwidth and provides more reliable network experience
Direct Connect/private connection
True/False: VPC peering is supported in a Direct Connect connection.
False. VPC Peering does not support transitive peering relationships.
What are the three “free” data transfers for S3?
1) In from Internet
2) Out to EC2 instance when in same region as S3 bucket
3) Out to CloudFront
GP2 and Provisioned IOPS (io1) are backed by
SSD
Throughput Optimized (st1) and Cold (sc1) are backed by
HDD/Magnetic
SDD-backed provide better performance when IO is
random or sequential
HDD-backed provide better performance when IO is __________ and ________
large AND sequential
Provisioned IOPS (io1) are best for I/O intensive workloads such as ____ (3 examples). Therefore, io1 is a better solution for these platforms than [other storage option]_____.
Databases [MongoDB, Oracle, MySQL] / GP2
What is Amazon Fargate?
Compute engine for containers w/ECS and Elastic Kubernetes Service (EKS). No over-provisioning.
What is Amazon EMR?
Cloud big data platform for processing vast amounts of data using open source tools.
True/False: ELB Access logging is enabled by default.
False. It is disabled. Once we turn it on it will store the logs to S3 as compressed files.
What is the backing framework for Amazon EMR?
Hadoop.
The combined use of IAM _______ and AWS ________ will support autonomy of corporate divisions while enabling governance and oversight.
Cross-Account access and consolidated billing w/ AWS organizations (linking accounts up to parent)
Week after a Kinesis Data Stream and Lambda is deployed, users have noticed slowness as data rate increases. There’s a performance issue with Kinesis. What should be done?
Increase shards with UpdateSharedCount command.
What are the two types of Kinesis resharding operations?
Split and Merge
True/False: you are charged on a per-shard basis for Kinesis.
True. Therefore increasing # of shards increases cost (and vice versa).
True/False. There is step scaling in Kinesis.
False. This is only applicable to EC2.
What would three pieces of an elastic, scalable web tier solution be?
Elastic Load Balancing, Amazon EC2, and Auto Scaling
Which DB solution is best for OLTP
Amazon RDS (not scalable)/Aurora (fully managed)
You get a ‘insufficient capacity error’ for a Placement group. What is the correct action to take?
Stop and restart the instances in the placement group and try the launch again.
What are the four metrics that CloudWatch monitors by default?
CPU Util
Network Util
Disk performance
Disk Read/Write