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aws solutions architect Interview Questions

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Amazon
AWS Solutions Architect was asked...June 19, 2019

What is a DDoS attack?

2 Answers

DDoS attack is an attack in which the attacker made systems unavailable to to the intended users. This attack can be mitigated in AWS by using resources like Auto Scaling, load Balancer WAF and Route 53. If this attack is at the subnet level, identify and block the perpetrator’s IP using NACL. Less

A distributed denial-of-service (DDoS) attack occurs when multiple systems flood the bandwidth or resources of a targeted system. DDoS is a type of DOS attack where multiple compromised systems, which are often infected with a Trojan, are used to target a single system causing a Denial of Service (DoS) attack Less

Sogeti

How do you debug in Python?

2 Answers

Set breakpoints using the controls in Visual Studio code, then check the variables and results through each step of the process to ensure you're getting expected results. If this fails (at this point I was cut off and told "you don't know what debugging is") Less

Use the debugger library and add the line "pdb.set_trace() anywhere you want the debug to start. Less

Amazon

How to create a bot?

2 Answers

Choose Create. On the Create your Lex bot page, choose Custom bot and provide the following information: App name: FirstBot. Choose Create. The console sends Amazon Lex a request to create a new bot. Less

Choose Create. On the Create your Lex bot page, choose Custom bot and provide the following information: App name: FirstBot. Choose Create. The console sends Amazon Lex a request to create a new bot. Less

Amazon

Difference between Authentication and Authorization

2 Answers

Authentication - Determining if user is really who they claim to be Authorization - Granting appropriate access to the user Less

user credentials access and the places the user has access to. Token based access that is granted. Less

Amazon

define a Blue-green deployment , how do you ensure uptime?

2 Answers

Blue/green deployments allow you to test the new application version before sending production traffic to it. If there is an issue with the newly deployed application version, you can roll back to the previous version faster than with in-place deployments Less

Thought it was in the CI/CD pipeline to switch the app but what refreshes the content...missed that one too. Less

Amazon

Difference between TCP and UDP protocols, how would you design what is needed to host a website on the internet (a VPC and the different components you can use in AWS? Nope. Doesn't apply to this AWS job interview), how would you make switches and routers redundant (because there are switches and routers that you can configure and use in AWS, right?), what would you use to store files on a network (I mentioned AWS EFS but hey, no no... No discussion of AWS features on an interview for an AWS job role) how can you make a fault tolerance database (if you're thinking about automatic snapshots, nope. Read replicas in RDS you say? No AWS topics allowed), what are some of the code repositories available on the internet, what is containerization (don't you dare mention ECS, ECR) why use it instead of a virtual machine, what is the OSI Model, a question about continuous development (can't remember the proper term).

2 Answers

TCP - Transmission Control Protocol , Connection oriented, secure and reliable data transfer protocol in Layer 4 (Transport) UDP - User data Gram protocol - A connection less and non reliable but simple and faster transmission protocol. Bot works well wit IP packets but use cases are different. TCP - Email, data transfer etc , UDP - Streaming, VOIP etc. Less

Fault tolerant Non AWS RDS can be achieved by RAID 1 or RAID 5 or RAID 10.

Amazon

what does it mean when something is federated?

2 Answers

(Look into IDP's) ....drew a blank at the time.

Data Federation is a technology that provides an organization with the ability to aggregate data from disparate sources in a virtual database. In context of security, when two domains are federated, the user can authenticate to one domain and then access resources in the other domain without having to perform a separate login process. Less

Amazon

what does RAID stand for? yeah sure this interview is cake..

2 Answers

Redundant Array of independent Disks

RAID is an acronym that stands for Risks, Actions, Issues and Decisions

Amazon

tell me an example where you took a personal commitment to a customer but couldn't deliver it.

2 Answers

Telling them that you do not make personal commitments on behalf of the company apparently isn't a good answer. Less

Why would someone make a "personal commitment" on behalf of the company? At one point or the other , that is ought to violate the company's policy of "Standards of Business Conduct". Less

IBM

How you will migrate an application to cloud

1 Answers

I answered them with the general topic we ask customer when they want to migrate their app to cloud like what's the cost they are ready to pay ane information on RTO and RPO Less

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