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Question 332 - ANS-C00 discussion

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Your company is working on a transition from IPv4 to IPv6 but is concerned about the security of having public IPv6 addresses attached to instances in a public network. They currently use a NAT to allow outbound traffic for instances.

Outbound traffic is required for updates. What are two options to alleviate your company's concerns? (Choose two.)

A.
Remove any rules allowing ::/0 inbound in the security group.
Answers
A.
Remove any rules allowing ::/0 inbound in the security group.
B.
Block ::/0 inbound in the NACL.
Answers
B.
Block ::/0 inbound in the NACL.
C.
Create an egress-only internet gateway.
Answers
C.
Create an egress-only internet gateway.
D.
Block 0.0.0.0/0 inbound in the NACL.
Answers
D.
Block 0.0.0.0/0 inbound in the NACL.
Suggested answer: A, C

Explanation:

Explanation:

0.0.0.0/0 will only block IPv4, blocking ::/0 in the NACL will prevent return traffic and updates to the instances. An egressonly internet gateway or blocking ::/0 inbound in the security group will allow the instances to initiate outbound connections and receive the return traffic, while still preventing outside attackers from initiating connections to the instances.

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asked 16/09/2024
ANIKET PATEL
41 questions
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