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Question 781 - SAP-C01 discussion

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You are implementing a URL whitelisting system for a company that wants to restrict outbound HTTP'S connections tospecific domains from their EC2-hosted applications. You deploy a single EC2 instance running proxy software andconfigure It to accept traffic from all subnets and EC2 instances in the VPC. You configure the proxy to only pass throughtraffic to domains that you define in its whitelist configuration. You have a nightly maintenance window or 10 minutes whereall instances fetch new software updates. Each update Is about 200MB In size and there are 500 instances In the VPC thatroutinely fetch updates. After a few days you notice that some machines are failing to successfully download some, but notall of their updates within the maintenance window. The download URLs used for these updates are correctly listed in theproxy's whitelist configuration and you are able to access them manually using a web browser on the instances.

What might be happening? (Choose two.)

A.
You are running the proxy on an undersized EC2 instance type so network throughput is not sufficient for all instances to download their updates in time.
Answers
A.
You are running the proxy on an undersized EC2 instance type so network throughput is not sufficient for all instances to download their updates in time.
B.
You are running the proxy on a sufficiently-sized EC2 instance in a private subnet and its network throughput is being throttled by a NAT running on an undersized EC2 instance.
Answers
B.
You are running the proxy on a sufficiently-sized EC2 instance in a private subnet and its network throughput is being throttled by a NAT running on an undersized EC2 instance.
C.
The route table for the subnets containing the affected EC2 instances is not configured to direct network traffic for the software update locations to the proxy.
Answers
C.
The route table for the subnets containing the affected EC2 instances is not configured to direct network traffic for the software update locations to the proxy.
D.
You have not allocated enough storage to the EC2 instance running the proxy so the network buffer is filling up, causing some requests to fail.
Answers
D.
You have not allocated enough storage to the EC2 instance running the proxy so the network buffer is filling up, causing some requests to fail.
E.
You are running the proxy in a public subnet but have not allocated enough EIPs to support the needed network throughput through the Internet Gateway (IGW).
Answers
E.
You are running the proxy in a public subnet but have not allocated enough EIPs to support the needed network throughput through the Internet Gateway (IGW).
Suggested answer: A, B
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asked 16/09/2024
John Shelby
36 questions
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