Exam 1z0-1072-23 topic 1 question 27 discussion

Actual exam question from Oracle's 1z0-1072-23

Question #: 27
Topic #: 1

Which of the following is a valid RFC 1918 CIDR prefix that can be used for creating an Oracle Cloud Infrastructure (OCI) Virtual Cloud Network (VCN)?

A. 192.168.0.0/16
B. 192.268.0.0/24
C. 10.0.0.0/8
D. 172.16.0.0/12
E. 189.215.154.89/32
F. 0.0.0.0/0

Show Suggested Answer

Suggested Answer: A 🗳️

by otavioko at Sept. 28, 2023, 3:29 p.m.

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arescons

8 months, 2 weeks ago

VCN Size range must be between /30 and /16. Only A and B fulfill this. And in B there is an illegal 268 for a subnet...

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Ekramy_Elnaggar

1 year, 8 months ago

read the question carefully, Answer is only A

upvoted 1 times

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antoniosilvano

1 year, 9 months ago

10.0.0.0/8 Class A this is correct, but in OCI is valid only when start with /16, example 10.0.0.0/16

upvoted 1 times

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otavioko

1 year, 9 months ago

Correct answer A,C,D The RFC 1918 prefixes are: 10.0.0.0/8 Class A 172.16.0.0/12 Class B 192.168.0.0/16 Class C

upvoted 2 times

FukYuu

1 year, 9 months ago

10.0.0.0/8 cannot be used as a VCN range, because "The allowable VCN size range is /16 to /30. Example: 10.0.0.0/16." Source: https://docs.oracle.com/en-us/iaas/Content/Network/Concepts/overview.htm

upvoted 2 times

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