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ASSOCIATE-CLOUD-ENGINEER · Question #36

Which of the following IP address would you specify to define a CIDR range that will apply to all the destination addresses?

The correct answer is A. 0.0.0.0/0. The CIDR range 0.0.0.0/0 is used to specify all possible destination IP addresses, making it the default route for outbound traffic.

Submitted by akirajp· Mar 30, 2026Planning and configuring a cloud solution

Question

Which of the following IP address would you specify to define a CIDR range that will apply to all the destination addresses?

Options

  • A0.0.0.0/0
  • B172.16.0.0/12
  • C192.168.0.0/16
  • D10.0.0.0/8

How the community answered

(40 responses)
  • A
    90% (36)
  • B
    3% (1)
  • C
    5% (2)
  • D
    3% (1)

Why each option

The CIDR range 0.0.0.0/0 is used to specify all possible destination IP addresses, making it the default route for outbound traffic.

A0.0.0.0/0Correct

The 0.0.0.0/0 CIDR block represents the default route in networking, meaning it matches all possible IPv4 addresses. This is commonly used in routing tables and firewall rules to define traffic that applies to all destinations not explicitly covered by more specific rules.

B172.16.0.0/12

172.16.0.0/12 is a private IP address range used for internal networks and does not represent all destination addresses.

C192.168.0.0/16

192.168.0.0/16 is a private IP address range commonly used for local area networks and does not represent all destination addresses.

D10.0.0.0/8

10.0.0.0/8 is a large private IP address range used for internal networks and does not represent all destination addresses.

Concept tested: Default route CIDR notation

Source: https://cloud.google.com/vpc/docs/routes#route_properties

Topics

#CIDR notation#IP addressing#firewall rules#default routes

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