Questions with Verified Answers
Graded A+
1. 1) A company runs a public-facing three-tier web application in a
VPC across multiple Availability Zones. Amazon EC2 instances for
the application tier run- ning in private subnets need to download
software patches from the internet. However, the EC2 instances
cannot be directly accessible from the internet. Which actions
should be taken to allow the EC2 instances to download the needed
patches? (Select TWO.)
A) Configure a NAT gateway in a public subnet.
B) Assign Elastic IP addresses to the EC2 instances.
C) Define a custom route table with a route to the NAT gateway
for internet traffic and associate it with the private subnets for
the application tier.
D)Define a custom route table with a route to the internet
gateway for internet traffic and associate it with the private
subnets for the application tier.
E)Configure a NAT instance in a private subnet. Answer: A) Configure a NAT gatewa
in a public subnet.
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, C) Define a custom route table with a route to the NAT gateway for internet traflc and associate it with
the private subnets for the application tier.
2. 2) A solutions architect wants to design a solution to save costs
for Amazon EC2 instances that do not need to run during a 2-week
company shutdown. The applications running on the EC2 instances
store data in instance memory that must be present when the
instances resume operation. Which approach should the solutions
architect recommend to shut down and resume the EC2 instances?
A)Modify the application to store the data on instance store volumes.
Reattach the volumes while restarting them.
B) Snapshot the EC2 instances before stopping them. Restore the
snapshot after restarting the instances.
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