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Question 29 - ANS-C00 discussion

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A user has created a VPC with CIDR 20.0.0.0/16 with only a private subnet and VPN connection using the VPC wizard. The user wants to connect to the instance in a private subnet over SSH. How should the user define the security rule for SSH?

A.
The user can connect to a instance in a private subnet using the NAT instance
Answers
A.
The user can connect to a instance in a private subnet using the NAT instance
B.
The user has to create an instance in EC2 Classic with an elastic IP and configure the security group of a private subnet to allow SSH from that elastic IP
Answers
B.
The user has to create an instance in EC2 Classic with an elastic IP and configure the security group of a private subnet to allow SSH from that elastic IP
C.
Allow Inbound traffic on port 22 from the user's network
Answers
C.
Allow Inbound traffic on port 22 from the user's network
D.
Allow Inbound traffic on port 80 and 22 to allow the user to connect to a private subnet over the internet
Answers
D.
Allow Inbound traffic on port 80 and 22 to allow the user to connect to a private subnet over the internet
Suggested answer: C

Explanation:

Explanation:

The user can create subnets as per the requirement within a VPC. If the user wants to connect VPC from his own data centre, the user can setup a case with a VPN only subnet (private) which uses VPN access to connect with his data centre.

When the user has configured this setup with Wizard, all network connections to the instances in the subnet will come from his data centre. The user has to configure the security group of the private subnet which allows the inbound traffic on SSH (port 22) from the data centre's network range.

Reference: http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_Scenario4.html

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asked 16/09/2024
Chun Yin Lau
44 questions
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