AWS is the dominant supplier with a 40% market share, estimated revenue of $14 Billion in 2017, and a dominating market share of 40%. This is not only good for Amazon’s bottom line. This is great news if you are interested in a career as an AWS Solutions Architect Associate. According to Glassdoor, the national average salary for AWS Architects in the United States is $121,189.
The following material can help you if you are considering a career change or are ready for an AWS Architect job interview. It’s likely that you are not the only person looking for an AWS job. Make sure you are prepared both for the interview and training. You’ll be able demonstrate your knowledge of important topics and the latest trends and best practices when working with AWS architecture by answering frequently asked interview questions.
1. What are the differences between stopping and terminating an instance?
It executes a standard shutdown when an instance is stopped. It then executes transactions. The EBS volumes can still be found so you can restart the instance at any moment. The best part is that you are not charged for instances in pause.
After being terminated, the instance will shut down normally. After that, Amazon EBS volumes are deleted. To prevent them from deleting, change the “Delete on Termination” setting to false. It is impossible to run the instance again because it has been erased.
2. What should the instance’s tenancy attribute be to allow it to be executed on single-tenant hardware
To ensure that single-tenant hardware works smoothly, it should be set to dedicate Instance. Any other values are invalid for this operation.
3. What is the best time to use an EIP to cover purchase costs?
Elastic Internet Protocol address is also known as EIP. Costs are incurred when an EIP is associated and allot to a halted instance. If there is only one ElasticIP associated with the instance that you are running, you will not be charged. If the IP is associated with a halted instance or is not associated with any other instance, you will be charged for it.
4. What is the difference between an On-Demand Instance and a Spot Instance?
Bidding is identical with Spot instance. The Spot price is the cost of bidding. Pricing models include spot and on-demand instances. In either case, there is no obligation to use the service for a specific time. On-demand instances cannot be used without a deposit. Spot instances are allowed to be used without an advance payment. It must be purchased first and costs more than the spot instances.
5. Identify the types and circumstances for which Multi AZ deployments are available.
Multi-AZ deployments can be used for all types of instances, regardless of their type or use.
6. What network performance factors can be expected when Instances in the cluster placement group are launched?
It depends on the type of Instance and the network performance criteria. The following parameters are possible if they are placed in the Placement Group.
20 Gbps for full-duplex and multi-flow
A single-flow can deliver up to 10 Gbps
Traffic outside the group is limited to 5 Gbps
7. Which instance of Amazon Web Services can be used to install a 4-node Hadoop cluster in Amazon Web Services?
This can be done using an i2.large instance or a large c4.8x instance. C.4bx requires a better PC configuration. To have the server configured automatically, you can launch the EMR at certain points. Data can be uploaded directly to S3 and then retrieved via EMR. After processing, it will reload the data into S3.
8. What are your thoughts about an AMI?
AMI is also known as the virtual machine templates. When creating an instance, it is possible to choose pre-baked AMIs. AMIs can be purchased for free, but not all AMIs. You can also create your own AMI. The most common reason for doing this is to save Amazon Web Service space. This is useful in situations where multiple software are not required and AMI can be easily modified.
9. Let us know what factors you consider when deciding on a availability zone.
This is a complex topic that requires consideration of many factors. Performance, cost, latency and reaction time are just some of the factors to consider.
10. What do you know about the differences between a private address and a public one?
The private address is linked with the instance. It is only sent back to EC2 if it is terminated or stopped. The public address is linked to the Instance in the same way, until it is terminated. The public address can be replaced by elastic IP. If a user wishes it to remain with Instance, this can be done.
11. Is it possible for multiple websites to be hosted on one Elastic IP address on an Elastic server?
It is not possible. In this case, we will need more than one elastic IP.
12. What security practices are available for Amazon EC2’s servers?
There are many ways to do this. It is important to review the security group’s protocols on a regular basis and to apply the principle of least privilege. Access management and AWS Identity are the best options for regulating and protecting access. Only trusted hosts and networks will be granted access. Access will only be granted to the required permissions, and not to others. Also, password-based logins to the instances should be disabled.
13. What states are available for Processor State Control?
It includes two states, and they are:
There are several levels to the P-state, ranging in frequency from P0 through P15. P0 is the highest frequency, while P15 is the lowest.
C-State – The processor’s levels range between C0 and C6, with C6 the most powerful.
These states can be customized in a few EC2 instances. This allows users to tailor the processor to meet their specific needs.