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1.
What is the minimum size subnet that you can have in an Amazon VPC?
  • A.
    /24
  • B.
    /26
  • C.
    /28
  • D.
    /30
  • Answer & Explanation
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Answer : [C]
Explanation :
The minimum size subnet that you can have in an Amazon VPC is /28.
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2.
You are a solutions architect working for a large travel company that is migrating its existing server estate to AWS. You have recommended that they use a custom Amazon VPC, and they have agreed to proceed. They will need a public subnet for their web servers and a private subnet in which to place their databases. They also require that the web servers and database servers be highly available and that there be a minimum of two web servers and two database servers each. How many subnets should you have to maintain high availability?
  • A.
    2
  • B.
    3
  • C.
    4
  • D.
    1
  • Answer & Explanation
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Answer : [C]
Explanation :
You need two public subnets (one for each Availability Zone) and two private subnets (one for each Availability Zone). Therefore, you need four subnets.
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3.
Which of the following is an optional security control that can be applied at the subnet layer of a VPC?
  • A.
    Network ACL
  • B.
    Security Group
  • C.
    Firewall
  • D.
    Web application firewall
  • Answer & Explanation
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Answer : [A]
Explanation :
Network ACLs are associated to a VPC subnet to control traffic flow.
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4.
What is the maximum size IP address range that you can have in an Amazon VPC?
  • A.
    /16
  • B.
    /24
  • C.
    /28
  • D.
    /30
  • Answer & Explanation
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Answer : [A]
Explanation :
The maximum size subnet that you can have in a VPC is /16.
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5.
You create a new subnet and then add a route to your route table that routes traffic out from that subnet to the Internet using an IGW. What type of subnet have you created?
  • A.
    An internal subnet
  • B.
    A private subnet
  • C.
    An external subnet
  • D.
    A public subnet
  • Answer & Explanation
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Answer : [D]
Explanation :
By creating a route out to the Internet using an IGW, you have made this subnet public.
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