AWS L1 Interview question and answer

 

1).full form of AMI  -->amazon machine image

 

2).cheaper storage than S3?  -->Glaicer(s3 glacier)

 

3).max number of elastic ip's in aws? -->5

 

4).in aws which component collects the raw data?--->dynamodb

 

5).default max number of internet gateways? -->5,10,15,20----->5

 

6).which component does the backups and recovery in AWS?---->glacier(EBS)

 

7).VPC comes under the _____layer of OSI? -->networking

 

8).Default number of VPC versions?--->ipv4(doubt)

 

9).how can u make private subnets EC2 instances to access internet?---->through nat

 

10).Amazon route 53 allows by default_____ resource record set per hosted zone? ---->1(10,000)

 

11).Default vpc comes with _________-->subnet,gateway------>1

 

12).to set loosely coupled architecture ______------>ebs(Amazon SQS an SNS)

 

13).feature of simpledb  -->non relational

 

14).simpledb not good for______ ---->rawdata

 

15).Default VPC per region?---->1

 

16).which db stores raw data? -->dynamodb

 

17).max virtural private gateway per region?---->5

 

18).______ is used to distribute traffic from user to EC2 intance?  -->Elastic load balancer

 

19).VPC pricing depends on what---> Free

 

20).what type of database is simpledb?--->non relational

 

security group is statefull

acl is stateless

 

21).max number of elastic ip's------>5

 

22).Glacier is charged-------->yes both in and out

 

23).number of hosted zone per region------>500

 

24).to attach an ec2 to a subnet u need?------>vpc id

 

25).how many internet gateways per region------->5

 

26).how to extend the DC and have private connection to AWS?------>direct connect and hardware vpn

 

27).ip range of vpc------>ipv4(a /16 netmask (65,536 IP addresses) and /28 netmask (16 IP addresses))

 

28).route 53 in ipv6 uses------>forward AAAA and reverse PTR

 

29).number of db instances allowed in RDS----->40

 

30).which aws service is needed to start vpc----->network(ec2 console)

 

31).how many vpc can be create in single region------>5

 

32).when s3 bucket is linked with ec2 instance if the machine is terminated wt hapns---->no data loss

 

33).what amazon vpc will do----->to create a private cloud space(you can launch your resources like ec2 )

 

34).what amazon service used to scale according to the requirements------>autoscaling

 

35).which aws service used to monitor------>cloudwatch

 

36).to store logfiles and database what storage will be used------>ebs

 

37).with one route53 how many records can we create

              1000

              10000(ans)

              15000

              unlimited

 

38).portocol used by loadbalancing application

              tcp(ans)

              udp

              xml

              ss7

 

39).while creating new aws account what is the default option available

              ec2

              storage

              vpc(ans)

              loadbalancer

 

40).how much amazon charge to integrate a instance to vpc

              additional charge

              no additional charge(ans)

 

41).an ec2 instance that provide port translation protocol to a non eip instance to access intranet

via internet gateway

              nat instance(ans)

              router

              hardware vpn connection

              internet gateway

 

42).how many elastic ip associated with aws account----->5

 

43).essential element to create vpc----->name and cidr range

 

44).in aws schema is used as which type of database

              dynamo db

              rds(ans)

              simple db

              ebs

 

45).which connectivity is used in vpc

              internet

              interanet

              dc

              both a,c(ans)

 

46).spot instance is not good for _________

              testing

              batch processing

              transcoding

              transmiting(ans)

 

47).number of db instances per hosted zone

              10

              20(ans)

              30

              50

 

48).which db is not used in aws----->redshift

(amazon arora, mysql, mariadb, postgresql, oracle, sql server(ms sql)----->these are used by aws)

 

49).which aws service is loosely coupled

              ec2

              s3

              ebs(ans)

              elb

 

50).(ans:cloudwatch)____________with elb the load balancing can happen

 

51).which service is used for backup and restore

              (ans:ebs)

 

52).which operational process is used by aws for data security

              ans by google:decommanting of storage devices using industry- standard practices

 

53).to protect s3 form accidental deletion and overwriting

              ans:versioning

 

54).which has high storage capacity

              s3(ans)

              ebs

 

55).cidr(classless interdomain routing)

 

56).not the feature of simpleDB

              asynchronous access

              no schema

              automatic access(ans)

 

57).simpleDB is not good for

              testing

              robust transaction(ans)

              transcript

              batch policy

 

58).not default instance per region

              internet gateway

              vpc

              subnet

              ec2(ans)

 

59).y bucket policy necessary----->to give permission to access to s3 resources

60).what data consistency model does amazon s3 used?----->read after write consistancy(eventual)

61).default instance per region

              internet gateway

              vpc(ans)

              subnet

              ec2

 

62).For which database no need to predefine schema to add data----->dynamodb

 

63).which rds....... volumes for raw data and database .....> ans : s3

 

 

64).if AMI instance is stored in s3 which of the following is not true

              data persistance out of instance

              boot in minutes(ans)

              free i/o costs in root directory

              none of these

 

65).which storage is good to store long term data and with low cost------->glacier

 

66).A nosql database for small data persiste........--------->dynamodb