Cisco 200-901 Exam - Topic 1 Question 90 Discussion

Actual exam question for Cisco's 200-901 exam

Question #: 90
Topic #: 1

[All 200-901 Questions]

Which RFC 1918 address space includes a subnet of 172.16.0.0 that uses a mask of 255.255.0.0?

Aclass A

Bclass B

Cclass C

Dclass D

Show Suggested Answer

Suggested Answer: B

RFC 1918 defines private IP address ranges for use within private networks. The address space 172.16.0.0 to 172.31.255.255 is designated as private and falls under class B.

Class B Address Space: The range 172.16.0.0 to 172.31.255.255 is a private IP address range designated for class B networks.

Subnet Mask: A subnet mask of 255.255.0.0 (/16) is commonly used within this range to create subnets.

RFC 1918 Address Allocation: RFC 1918

by Donette at Nov 15, 2024, 01:38 PM

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Kirk

9 months ago

Yup, class B has that subnet mask!

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Kenneth

9 months ago

Wait, are you sure about that?

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Tommy

10 months ago

Definitely class B, 172.16.0.0 is in that range.

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Kati

10 months ago

I thought it was class A?

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Cory

10 months ago

It's class B, for sure!

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Marta

10 months ago

I’m pretty confident it’s class B, but I wish I had reviewed the address classes more before the exam.

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Shala

11 months ago

Class A sounds familiar, but I feel like I might be mixing it up with the other classes.

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Fredric

11 months ago

I remember practicing a question like this, and I think class B is correct since it uses a mask of 255.255.0.0.

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Leatha

11 months ago

I think 172.16.0.0 falls under class B, but I'm not entirely sure about the subnet mask.

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Bernadine

11 months ago

Okay, let me think this through step-by-step. The RFC 1918 address spaces are class A, B, and C. The 172.16.0.0 subnet with a 255.255.0.0 mask sounds like it could be class B. I'll go with that.

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Laura

11 months ago

I'm a bit confused on the different RFC 1918 address classes and how the subnetting works. I'll need to review that before I can answer this confidently.

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Nikita

11 months ago

I've got this! The 172.16.0.0 subnet with a 255.255.0.0 mask is definitely part of the class B RFC 1918 address space. Confident in my answer.

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Alyce

11 months ago

Okay, let me see. The subnet of 172.16.0.0 with a mask of 255.255.0.0 - that sounds like it could be a class B address space. I'll double-check that.

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Britt

11 months ago

Hmm, this looks like a tricky one. I'll need to think through the RFC 1918 address spaces and subnetting to figure this out.

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Charlette

2 years ago

Haha, Class B for sure. Gotta love those 16-bit network IDs, am I right?

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Loreta

2 years ago

Class B, baby! That's the one that lets me have all the private IPs I can handle.

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Cheryl

2 years ago

Definitely, Class B is perfect for handling all those private IPs.

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Lezlie

2 years ago

I agree, Class B is the way to go for that subnet.

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Dong

2 years ago

Hmm, got to be Class B. I mean, who doesn't love a good Class B subnet these days?

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Isabelle

2 years ago

Agreed, Class B it is. Gotta love a good subnetting challenge.

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Joseph

2 years ago

Yep, Class B for sure. That subnet mask matches up perfectly.

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Katie

2 years ago

Definitely Class B. It's the one with the 172.16.0.0 subnet.

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Johnetta

2 years ago

D) class D

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Felicidad

2 years ago

C) class C

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Martina

2 years ago

B) class B

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Jade

2 years ago

A) class A

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Wynell

2 years ago

I'm not sure, but I think it might be class C because the subnet mask 255.255.0.0 corresponds to a class C address range.

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Kaycee

2 years ago

I agree with Lynsey, because the subnet 172.16.0.0 falls within the range of class B addresses.

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Afton

2 years ago

Class B, definitely. I remember learning that RFC 1918 reserved the 172.16.0.0/16 block for private networks.

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Ryan

2 years ago

Great, so we all agree that the subnet 172.16.0.0 with a mask of 255.255.0.0 falls under class B.

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Anjelica

2 years ago

I remember studying that too, class B is reserved for private networks like the one using 172.16.0.0/16.

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Lindsay

2 years ago

Yes, you're right. Class B is the correct answer for that subnet.

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Nan

2 years ago

I think it's class B too, that subnet falls within the range of 172.16.0.0/16.

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Lynsey

2 years ago

I think the answer is class B.

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Asuncion

2 years ago

Class B, of course! That's the only one that matches the subnet mask of 255.255.0.0.

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Whitney

2 years ago

Definitely class B, the subnet mask aligns perfectly.

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Jesusita

2 years ago

Class B it is, the subnet mask gives it away.

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Mi

2 years ago

Yes, class B is the correct answer for that subnet.

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Herminia

2 years ago

I think it's class B too, the subnet mask matches.

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