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

The correct answer is A. A rule that allows all outbound connections B. A rule that denies all inbound connections. 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…

Submitted by khalil_dz· Apr 18, 2026Configuring network security

Question

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

Options

AA rule that allows all outbound connections
BA rule that denies all inbound connections
CA rule that blocks all inbound port 25 connections
DA rule that blocks all outbound connections
EA rule that allows all inbound port 80 connections

How the community answered

(26 responses)

A
88% (23)
C
8% (2)
E
4% (1)

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

Topics

#VPC Network#Firewall Rules#Default Security#Network Security

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