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So far sensei has created 16 blog entries.

How to Book and Take Your AWS Certification Exam Online

2021-05-18T08:35:32+00:00

Bookmarks Part 1 - How to Book Your AWS Online Exam Schedule with PSI Schedule with Pearson Vue Part 2 - How to Take Your Exam Online Important Notes Amazon now allows you to take your AWS Certification exams via online proctoring using its third-party test delivery provider: Pearson VUE. However, this option is not yet available with its other delivery provider (PSI). This means that you can now take all AWS Certification exams at home or office anytime! Before, you can only take the AWS Certified Cloud Practitioner (CCP) exam online. [...]

How to Book and Take Your AWS Certification Exam Online2021-05-18T08:35:32+00:00

BREAKING NEWS: You can now take ALL AWS Certification Exams At Home!

2020-08-18T08:49:45+00:00

BREAKING NEWS: You can now take ALL AWS Certification Exams At Home! The AWS Certification team is now offering extended support to IT Professionals who need additional time to reschedule their AWS exams. This is in response to recent wave of temporary testing center closures around the world due to the coronavirus pandemic. Everyone can now take all AWS Certification exams at the comfort of their home or office with Pearson Vue via online proctoring. Previously, you can only take the actual AWS Certified Cloud Practitioner (CCP) exam online but now, you can take all of the available AWS certifications [...]

BREAKING NEWS: You can now take ALL AWS Certification Exams At Home!2020-08-18T08:49:45+00:00

SNI Custom SSL vs Dedicated IP Custom SSL

2021-08-31T09:04:18+00:00

Server Name Indication (SNI) Custom SSL Dedicated IP Custom SSL Relies on the SNI extension of the TLS protocol, which allows multiple domains to serve SSL traffic over the same IP address. Offers the same level of security when using Dedicated IP Custom SSL. If you configure CloudFront to serve HTTPS requests using SNI, CloudFront associates your alternate domain name with an IP address for each edge location. The IP address to your domain name is determined during the SSL/TLS handshake negotiation, and isn't dedicated to your distribution. Some older browsers do not support SNI and will not be able [...]

SNI Custom SSL vs Dedicated IP Custom SSL2021-08-31T09:04:18+00:00

Redis Append-Only Files vs Redis Replication

2021-08-31T07:39:00+00:00

Redis Append-Only Files (AOF) Redis Replication You can enable the Redis append-only file feature (AOF) for data durability. It is similar to creating manual backups. When enabled, the node writes all of the commands that change cache data to an append-only file.  When a node is rebooted and the cache engine starts, Redis goes through an AOF to replay the actions that were performed before the crash; the result is a warm Redis cache with all of the data intact. To enable AOF for a cluster running Redis, you must create a parameter group with the appendonly parameter set to [...]

Redis Append-Only Files vs Redis Replication2021-08-31T07:39:00+00:00

Elastic Container Service (ECS) vs Lambda

2021-08-31T08:13:07+00:00

Amazon EC2 Container Service (ECS) AWS Lambda Amazon ECS is a highly scalable, high performance container management service that supports Docker containers and allows you to easily run applications on a managed cluster of Amazon EC2 instances. ECS eliminates the need for you to install, operate, and scale your own cluster management infrastructure. With ECS, deploying containerized applications is easily accomplished. This service fits well in running batch jobs or in a microservice architecture. You have a central repository where you can upload your Docker Images from ECS container for safekeeping called Amazon ECR. Applications in ECS can be written [...]

Elastic Container Service (ECS) vs Lambda2021-08-31T08:13:07+00:00

Service Control Policies (SCP) vs IAM Policies

2021-08-31T09:00:40+00:00

Service Control Policies (SCP) IAM Policies SCPs are mainly used along with AWS Organizations organizational units (OUs). SCPs do not replace IAM Policies such that they do not provide actual permissions. To perform an action, you would still need to grant appropriate IAM Policy permissions. Even if a Principal is allowed to perform a certain action (granted through IAM Policies), an attached SCP will override that capability if it enforces a Deny on that action. SCP takes precedence over IAM Policies. SCPs can be applied to the root of an organization or to individual accounts in an OU. When you [...]

Service Control Policies (SCP) vs IAM Policies2021-08-31T09:00:40+00:00

S3 Transfer Acceleration vs Direct Connect vs VPN vs Snowball Edge vs Snowmobile

2021-08-25T10:12:14+00:00

S3 Transfer Acceleration (TA) AWS Direct Connect AWS VPN Amazon S3 Transfer Acceleration makes public Internet transfers to S3 faster, as it leverages Amazon CloudFront’s globally distributed AWS Edge Locations. There is no guarantee that you will experience increased transfer speeds. If S3 Transfer Acceleration is not likely to be faster than a regular S3 transfer of the same object to the same destination AWS Region, AWS will not charge for the use of S3 TA for that transfer. This is not the best transfer service to use if transfer disruption is not tolerable. S3 TA provides the same security [...]

S3 Transfer Acceleration vs Direct Connect vs VPN vs Snowball Edge vs Snowmobile2021-08-25T10:12:14+00:00

Application Load Balancer vs Network Load Balancer vs Gateway Load Balancer

2021-08-17T02:12:43+00:00

Common features between the load balancers: Has instance health check features Has built-in CloudWatch monitoring Logging features Support zonal failover Supports connection draining Support cross-zone load balancing (evenly distributes traffic across registered instances in enabled AZs) Resource-based IAM permission policies Tag-based IAM permissions Flow stickiness - all packets are sent to one target and return the traffic that comes from the same target. Reference: https://aws.amazon.com/elasticloadbalancing/features/

Application Load Balancer vs Network Load Balancer vs Gateway Load Balancer2021-08-17T02:12:43+00:00

Elastic Beanstalk vs CloudFormation vs OpsWorks vs CodeDeploy

2021-08-25T11:14:29+00:00

AWS Elastic Beanstalk AWS CloudFormation AWS Elastic Beanstalk makes it even easier for developers to quickly deploy and manage applications in the AWS Cloud. Developers simply upload their application, and Elastic Beanstalk automatically handles the deployment details of capacity provisioning, load balancing, auto-scaling, and application health monitoring. This platform-as-a-service solution is typically for those who want to deploy and manage their applications within minutes in the AWS Cloud without worrying about the underlying infrastructure.  AWS Elastic Beanstalk supports the following languages and development stacks: Apache Tomcat for Java applications Apache HTTP Server for PHP applications Apache HTTP Server for Python [...]

Elastic Beanstalk vs CloudFormation vs OpsWorks vs CodeDeploy2021-08-25T11:14:29+00:00

Amazon Simple Workflow (SWF) vs AWS Step Functions vs Amazon SQS

2021-08-31T08:39:04+00:00

Amazon Simple Workflow (SWF) A web service that makes it easy to coordinate work across distributed application components. In Amazon SWF, tasks represent invocations of logical steps in applications. Tasks are processed by workers which are programs that interact with Amazon SWF to get tasks, process them, and return their results. The coordination of tasks involves managing execution dependencies, scheduling, and concurrency in accordance with the logical flow of the application. AWS Step Functions A fully managed service that makes it easy to coordinate the components of distributed applications and microservices using visual workflows. You define state machines that describe [...]

Amazon Simple Workflow (SWF) vs AWS Step Functions vs Amazon SQS2021-08-31T08:39:04+00:00

AWS, Azure, and GCP Certifications are consistently among the top-paying IT certifications in the world, considering that most companies have now shifted to the cloud. Earn over $150,000 per year with an AWS, Azure, or GCP certification!

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