Subnetting
Comments
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yengiang
Member Posts: 33 ■■■□□□□□□□
Which IP addresses are valid for hosts belonging to the 10.1.160.0/20 subnet? (Choose three.)
A. 10.1.168.0
B. 10.1.176.1
C. 10.1.174.255
D. 10.1.160.255
E. 10.1.160.0
F. 10.1.175.255
/20= 240 (11110000)
increment: 16 - (0,16,32...160,176...)
It rules out B(??) and E (160.0-network ID). What are the correct 3 out of A,C,D and F? Thanks -
bbarrick
Member Posts: 242 ■■■□□□□□□□
B. is in the 176 subnet.
E. Is a Subnet ID
F. Is a Broadcast Address
Leaving you A, C and D. -
FrankGuthrie
Member Posts: 245
The 10.1.160.0/20 subnet goes from 10.1.160.1 to 10.1.175.254.
A 20 bit subnet gives you a subnetmask of 255.255.240.0. This means you get blocks of 16 in the 3rd segment:
10.1.160.0 - 10.1.175.254
10.1.176.0 - 10.1.191.254
10.1.192.0 - 10.1.207.254
10.1.208.0 - 10.1.223.254
10.1.224.0 - 10.1.239.254
etc......
Notice the 3rd subnet increasing with 16. That is the block reserved by using a subnetmask of /20. Remember 20 network bits are used to determine the network and 12 bits are left for the host portion.
11111111.11111111.11110000.00000000
255 .255 . 240 .0
With that in mind, the only answers are A, C and D. Why you only have those left are explained by bbarrick -
bbarrick
Member Posts: 242 ■■■□□□□□□□
None of them give the proper command for a non-default AD as far as I can tell though. The answer he says the book provides doesn't really make much sense.
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bbarrick
Member Posts: 242 ■■■□□□□□□□
TechGuru80 wrote: »
Not also, there was another question after the AD question. -
yengiang
Member Posts: 33 ■■■□□□□□□□
This forum is awesome. Thanks for helping me with the "subneting part".
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bbarrick
Member Posts: 242 ■■■□□□□□□□
It's against the rules to post actual test questions. Might want to edit that post if you can.
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TechGuru80
Member Posts: 1,539 ■■■■■■□□□□
Not also, there was another question after the AD question.
Noticed that when I hit reply from the first page. -
yengiang
Member Posts: 33 ■■■□□□□□□□
Not also, there was another question after the AD question.
Do you mean I can't post 2 questions? -
yengiang
Member Posts: 33 ■■■□□□□□□□
It's against the rules to post actual test questions. Might want to edit that post if you can.
Please show me the rules link. Thanks. -
bbarrick
Member Posts: 242 ■■■□□□□□□□
Please show me the rules link. Thanks.
If you take a Cisco test you agree to those rules. You could lose your cert over it I believe.
You can post as many questions as you like in this thread as far as I am concerned. I was just letting the other poster know that another question had been asked. -
yengiang
Member Posts: 33 ■■■□□□□□□□
If you take a Cisco test you agree to those rules. You could lose your cert over it I believe.
You can post as many questions as you like in this thread as far as I am concerned. I was just letting the other poster know that another question had been asked.
I'm here to learn and share...I probably have to take more test just to get familiar with those "rules". It's been 13 years since I took my last cert...:) -
bbarrick
Member Posts: 242 ■■■□□□□□□□
I'm here to learn and share...I probably have to take more test just to get familiar with those "rules". It's been 13 years since I took my last cert...:)
That's probably the most important thing you should remember with Cisco, probably other cert tests as well. There are sites called brain **** that have actual test questions. Utilization of these sites can cost you your cert, posting actual cert questions can as well. Hang around here for awhile and you will see it ad nauseam.
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yengiang
Member Posts: 33 ■■■□□□□□□□
That's probably the most important thing you should remember with Cisco, probably other cert tests as well. There are sites called brain **** that have actual test questions. Utilization of these sites can cost you your cert, posting actual cert questions can as well. Hang around here for awhile and you will see it ad nauseam.
Well...that's inevitable. I'm not really concerned. My main goal is learning subneting, therefore, I'll keep posting question about subneting regardless.
