Which code snippet below returns the URL of a load balanced web site created in
CloudFormation with an AWS::ElasticLoadBalancing::LoadBalancer resource name
“ElasticLoad Balancer”?
A.
“Fn::Join” : [“”. [ “http://”, {“Fn::GetAtr” : [ “ElasticLoadBalancer”,”DNSName”]}]]
B.
“Fn::Join” : [“.”, [ “http://”, {“Ref” : “ElasticLoadBalancerDNSName”}]]
C.
“Fn::Join” : [“”. [ “http://”, {“Ref” : “ElasticLoadBalancerUrl”}]]
D.
“Fn::Join” : [“”. [ “http://”, {“Fn::GetAtr” : [ “ElasticLoadBalancer”,”Url”]}]]
Correct answer is D
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3
Answer is A.. check this page
http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/intrinsic-function-reference-getatt.html
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0
Correct answer is A, and should be GetAtt not GetAtr
http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/example-templates-autoscaling.html
exact code snippet:
“Outputs” : {
“URL” : {
“Description” : “The URL of the website”,
“Value” : { “Fn::Join” : [ “”, [ “http://”, { “Fn::GetAtt” : [ “ElasticLoadBalancer”, “DNSName” ]}]]}
}
}
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I cant see any references to a “Url” attribute in the documentation so answer must be A.
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a
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A is also long but its should be GetAtt
0
0
D
0
1
A
http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-ec2-elb.html#aws-properties-ec2-elb-ref
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A
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It has to be A. URL by definition includes protocol too (http/https). The join operation in given options already concatenating “http” protocol so all is needed to attach a DNS name and hence answer A fulfills this request.
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It’s always hilarious seeing people post what they think is the answer here and have no clue. Why on EARTH would you think that it’s D?
Have you never made a cloudformation template with a load balancer? Have you never looked at what properties are exposed by a load balancer?
If you are just guessing, don’t put it down in the comments as an answer. It’s just a waste of everyones time.
BTW, the answer is OBVIOUSLY A.
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A
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0