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Which RFC 1918 address space includes a subnet of 172.16.0.0 that uses a mask of 255.255.0.0?
Suggested Answer: B
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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
39 comments · newest first
KI
Kirk
11 months ago
Yup, class B has that subnet mask!
KE
Kenneth
11 months ago
Wait, are you sure about that?
TO
Tommy
11 months ago
Definitely class B, 172.16.0.0 is in that range.
KA
Kati
11 months ago
I thought it was class A?
CO
Cory
12 months ago
It's class B, for sure!
MA
Marta
12 months ago
I’m pretty confident it’s class B, but I wish I had reviewed the address classes more before the exam.
SH
Shala
1 year ago
Class A sounds familiar, but I feel like I might be mixing it up with the other classes.
FR
Fredric
1 year 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.
LE
Leatha
1 year ago
I think 172.16.0.0 falls under class B, but I'm not entirely sure about the subnet mask.
BE
Bernadine
1 year 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.
LA
Laura
1 year 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.
NI
Nikita
1 year 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.
AL
Alyce
1 year 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.
BR
Britt
1 year 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.
CH
Charlette
2 years ago
Haha, Class B for sure. Gotta love those 16-bit network IDs, am I right?
LO
Loreta
2 years ago
Class B, baby! That's the one that lets me have all the private IPs I can handle.
CH
Cheryl
2 years ago
Definitely, Class B is perfect for handling all those private IPs.
LE
Lezlie
2 years ago
I agree, Class B is the way to go for that subnet.
DO
Dong
2 years ago
Hmm, got to be Class B. I mean, who doesn't love a good Class B subnet these days?
IS
Isabelle
2 years ago
Agreed, Class B it is. Gotta love a good subnetting challenge.
JO
Joseph
2 years ago
Yep, Class B for sure. That subnet mask matches up perfectly.
KA
Katie
2 years ago
Definitely Class B. It's the one with the 172.16.0.0 subnet.
JO
Johnetta
2 years ago
D) class D
FE
Felicidad
2 years ago
C) class C
MA
Martina
2 years ago
B) class B
JA
Jade
2 years ago
A) class A
WY
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.
KA
Kaycee
2 years ago
I agree with Lynsey, because the subnet 172.16.0.0 falls within the range of class B addresses.
AF
Afton
2 years ago
Class B, definitely. I remember learning that RFC 1918 reserved the 172.16.0.0/16 block for private networks.
RY
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.
AN
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.
LI
Lindsay
2 years ago
Yes, you're right. Class B is the correct answer for that subnet.
NA
Nan
2 years ago
I think it's class B too, that subnet falls within the range of 172.16.0.0/16.
LY
Lynsey
2 years ago
I think the answer is class B.
AS
Asuncion
2 years ago
Class B, of course! That's the only one that matches the subnet mask of 255.255.0.0.
WH
Whitney
2 years ago
Definitely class B, the subnet mask aligns perfectly.
JE
Jesusita
2 years ago
Class B it is, the subnet mask gives it away.
MI
Mi
2 years ago
Yes, class B is the correct answer for that subnet.
HE
Herminia
2 years ago
I think it's class B too, the subnet mask matches.