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Question 2 - Professional Cloud Security Engineer discussion

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Which two implied firewall rules are defined on a VPC network? (Choose two.)

A.
A rule that allows all outbound connections
Answers
A.
A rule that allows all outbound connections
B.
A rule that denies all inbound connections
Answers
B.
A rule that denies all inbound connections
C.
A rule that blocks all inbound port 25 connections
Answers
C.
A rule that blocks all inbound port 25 connections
D.
A rule that blocks all outbound connections
Answers
D.
A rule that blocks all outbound connections
E.
A rule that allows all inbound port 80 connections
Answers
E.
A rule that allows all inbound port 80 connections
Suggested answer: A, B

Explanation:

Implied IPv4 allow egress rule. An egress rule whose action is allow, destination is 0.0.0.0/0, and priority is the lowest possible (65535) lets any instance send traffic to any destination

Implied IPv4 deny ingress rule. An ingress rule whose action is deny, source is 0.0.0.0/0, and priority is the lowest possible (65535) protects all instances by blocking incoming connections to them.

https://cloud.google.com/vpc/docs/firewalls?hl=en#default_firewall_rules

asked 18/09/2024
PATRICK ADUSEI
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