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Amazon web services (aws) - Interview Questions and Answers for 'Tcs' - 11 question(s) found - Order By Newest

 Q1. What are the problems one could face while working with serverless technologies like AWS Lambda ?Amazon Web Services (AWS)
Ans. Warm up time for certain technologies like Java ( JVM Warmup )

Performance

Size of Deployable ( Bigger size packaging should go in S3 )

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 Q2. What is Amazon EC2 ?Amazon Web Services (AWS)
Ans. Amazon Elastic Compute Cloud or EC2 provides scalable computing capacity in the AWS cloud. It can be used to create Virtual Environments , storage and configure. EC2 enables to upgrade or downgrade infrastructure according to the rules defined ( with fluctuation in latency, traffic etc )

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 Q3. How do you check logs for your application in AWS ?Amazon Web Services (AWS)
Ans. We can do it by either going to Elastic Beanstalk -> Respective instance -> Logs

or using CloudWatch -> Logs -> Respective Log Group

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 Q4. What is AWS CloudWatch ?Amazon Web Services (AWS)
Ans. Amazon CloudWatch is a monitoring service for AWS cloud resources like Beanstalk and DB instances. We can use CloudWatch to monitor the state of resources, collect metrices, set alarms and appropriate response to the alarm state.

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 Q5. How can we schedule Lambda function to run daily ?Amazon Web Services (AWS)
Ans. We can schedule that through CloudWatch.

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 Q6. Which AWS service can be used for creating Billing Alarms ?Amazon Web Services (AWS)
Ans. AWS CloudWatch

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 Q7. Which AWS service can be used to monitor EC2 ?Amazon Web Services (AWS)
Ans. CloudWatch

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 Q8. Are CloudWatch metrics available with free tier ?Amazon Web Services (AWS)
Ans. Only Basic not advanced

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 Q9. What are the Default metrics available for EC2 in CloudWatch ?Amazon Web Services (AWS)
Ans. CPU, Disk, Network, Status

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 Q10. How frequently Cloudwatch monitor AWS services for generating metrics ?Amazon Web Services (AWS)
Ans. 5 mins for Standard / Basic
1 min for Detailed / advanced

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 Q11. Difference between CloudWatch and CloudTrail ?Amazon Web Services (AWS)
Ans. CloudWatch is for monitoring resources whereas CloudTrail is for auditing activity.

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 Q12. Which of the following is not the benefit of Lazy Initialization in Hibernate ?Hibernate
a. Laod When required provides better performance
b. Object stays lighter
c. Less number of Database calls
d. Less load on Database

Ans.c. Less number of Database calls

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