Amazon Exam BDS-C00 Topic 9 Question 99 Discussion

Actual exam question for Amazon's BDS-C00 exam

Question #: 99
Topic #: 9

You have a load balancer configured for VPC, and all backend Amazon EC2 instances are in service. However, your web browser times out when connecting to the load balancer's DNS name. Which options are probable causes of this behavior?

AThe load balancer was not configured to use a public subnet with an Internet gateway configured

BThe Amazon EC2 instances do not have a dynamically allocated private IP address

CThe security groups or network ACLs are not properly configured for web traffic

DThe load balancer is not configured in a private subnet with a NAT instance

EThe VPC does not have a VGW configured

Show Suggested Answer

Suggested Answer: B

by Nickole at Aug 02, 2024, 08:09 PM

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Shawna

1 months ago

Wait, you mean I actually have to configure the network stuff correctly? I was just going to unplug the router and plug it back in. *rolls eyes*

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Ethan

1 months ago

This one's a head-scratcher! Maybe the load balancer is just hungover and needs a strong cup of coffee to start working again. *chuckles*

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Ardella

1 months ago

Hmm, I'm torn between A and C. Either the load balancer isn't set up in the right subnet, or the network config is blocking the traffic. I'll need to double-check those settings.

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Kaycee

1 months ago

I'm going with B. If the instances don't have a dynamically allocated private IP, the load balancer won't be able to route traffic to them properly.

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Candra

3 days ago

E) The VPC does not have a VGW configured

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Cecil

4 days ago

C) The security groups or network ACLs are not properly configured for web traffic

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Helaine

29 days ago

A) The load balancer was not configured to use a public subnet with an Internet gateway configured

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2 months ago

I think the probable cause could be option C, security groups or network ACLs not properly configured.

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