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Problem 3 15

The document contains 15 problems describing subnetting scenarios. Each problem provides information like the number of needed subnets, network address, subnet mask, and asks questions about subnet ranges, subnet numbers, broadcast addresses, and assignable address ranges for various subnets. The solutions are not shown.

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Michael Charles Ulson
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3K views13 pages

Problem 3 15

The document contains 15 problems describing subnetting scenarios. Each problem provides information like the number of needed subnets, network address, subnet mask, and asks questions about subnet ranges, subnet numbers, broadcast addresses, and assignable address ranges for various subnets. The solutions are not shown.

Uploaded by

Michael Charles Ulson
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Problem 3

Number of needed subnets 2


Network Address 195.223.50.0
Address class C
Default subnet mask 255.255.255.0
Custom subnet mask 255.255.255.128
Total number of subnets 2
Total number of host addresses 128
Number of usable addresses 126
Number of bits borrowed 1

What is the 3rd 195.223.50.128 - 195.223.50.255


subnet range?

What is the subnet number 195.223.50.127


for the 2nd subnet?

What is the subnet 195.223.50.1


broadcast address for
the 1st subnet?

What are the assignable


addresses for the 3rd 195.223.50.255
subnet?

Solution:

256 | 128 64 32 16 8 4 2
2 | 4 8 16 32 64 128 256
128 | 64 32 16 8 4 2 1
195.223.50.50.0 0 0 0 0 0 0 0

0 | 195.223.50.0 - 195.223.50.127
195.223.50.128
195.223.50.255
Problem 4

Number of needed subnets 750


Network Address 190.35.0.0
Address class B
Default subnet mask 255 . 255 . 0 . 0
Custom subnet mask 255 . 255 . 255 . 192
Total number of subnets 1,024
Total number of host addresses 64
Number of usable addresses 62
Number of bits borrowed 10

What is the 15th 190.35.3.128 to 190.35.3.191


subnet range?
What is the subnet number 190.35.3.0
for the 13th subnet?
What is the subnet 190.35.2.127
broadcast address for
the 10th subnet?
What are the assignable 190.35.1.65 to 190.35.1.126
addresses for the 6th
subnet?

Solution:
Problem 5

Number of needed usable hosts 6


Network Address 126.0.0.0
Address class A
Default subnet mask 255 . 0 . 0 . 0
Custom subnet mask 255 . 255 . 255 . 248
Total number of subnets 2,097,152
Total number of host addresses 8
Number of usable addresses 6
Number of bits borrowed 21

What is the 2nd 126.0.0.8 to 126.0.0.15


subnet range?
What is the subnet number 126.0.0.32
for the 5th subnet?
What is the subnet 126.0.0.55
broadcast address for
the 7th subnet?
What are the assignable 126.0.0.73 to 126.0.0.78
addresses for the 10th
subnet?

Solution:
Problem 6

Number of needed subnets 10


Network Address 192.70.10.0
Address class C
Default subnet mask 255 . 255 . 255 . 0
Custom subnet mask 255 . 255 . 255 . 240
Total number of subnets 16
Total number of host addresses 16
Number of usable addresses 14
Number of bits borrowed 4

What is the 9th 192.70.10.128 to 192.70.10.143


subnet range?
What is the subnet number 192.70.10.48
for the 4th subnet?
What is the subnet 192.70.10.191
broadcast address for
the 12th subnet?
What are the assignable 192.70.10.145 to 192.70.10.158
addresses for the 10th
subnet?

Solution:
Problem 7

Network Address 10.0.0.0 /16


Address class A
Default subnet mask 255 . 0 . 0 . 0
Custom subnet mask 255 . 255 . 0 . 0
Total number of subnets 256
Total number of host addresses 65,536
Number of usable addresses 65,534
Number of bits borrowed 8

What is the 11th 10.10.0.0 to 10.10.255.255


subnet range?
What is the subnet number 10.5.0.0
for the 6th subnet?
What is the subnet 10.1.255.255
broadcast address for
the 2nd subnet?
What are the assignable 10.8.0.1 to 10.8.255.254
addresses for the 9th
subnet?

Solution:
Problem 8

Number of needed subnets 5


Network Address 172.50.0.0
Address class B
Default subnet mask 255 . 255 . 0 . 0
Custom subnet mask 255 . 255 . 224 . 0
Total number of subnets 8
Total number of host addresses 8,192
Number of usable addresses 8,190
Number of bits borrowed 3

What is the 4th 172.50.96.0 to 172.50.127.255


subnet range?
What is the subnet number 172.50.128.0
for the 5th subnet?
What is the subnet 172.50.191.255
broadcast address for
the 6th subnet?
What are the assignable 172.50.64.1 to 172.50.95.254
addresses for the 3rd
subnet?

Solution:
Problem 9

Number of needed usable hosts 28


Network Address 172.50.0.0
Address class B
Default subnet mask 255 . 255 . 0 . 0
Custom subnet mask 255 . 255 . 255 . 224
Total number of subnets 2,048
Total number of host addresses 32
Number of usable addresses 30
Number of bits borrowed 11

What is the 2nd 172.50.0.32 to 172.50.0.63


subnet range?
What is the subnet number 172.50.1.32
for the 10th subnet?
What is the subnet broadcast 172.50.0.127
address for
the 4th subnet?
What are the assignable 172.50.0.161 to 172.50.0.190
addresses for the 6th
subnet?

Solution:
Problem 10

Number of needed subnets 45


Network Address 220.100.100.0
Address class C
Default subnet mask 255 . 255 . 255 . 0
Custom subnet mask 255 . 255 . 255 . 252
Total number of subnets 64
Total number of host addresses 4
Number of usable addresses 2
Number of bits borrowed 6

What is the 5th 220.100.100.16 to 220.100.100.19


subnet range?
What is the subnet number 220.100.100.12
for the 4th subnet?
What is the subnet 220.100.100.51
broadcast address for
the 13th subnet?
What are the assignable 220.100.100.45 to 220.100.100.46
addresses for the 12th
subnet?

Solution:
Problem 11

Number of needed usable hosts 8,000


Network Address 135.70.0.0
Address class B
Default subnet mask 255 . 255 . 0 . 0
Custom subnet mask 255 . 255 . 224 . 0
Total number of subnets 8
Total number of host addresses 8,192
Number of usable addresses 8,190
Number of bits borrowed 3

What is the 6th 135.70.160.0 to 135.70.191.255


subnet range?
What is the subnet number 135.70.192.0
for the 7th subnet?
What is the subnet 135.70.95.255
broadcast address for
the 3rd subnet?
What are the assignable 135.70.128.1 to 135.70.159.254
addresses for the 5th
subnet?

Solution:
Problem 12

Number of needed usable hosts 45


Network Address 198.125.50.0
Address class C
Default subnet mask 255 . 255 . 255 . 0
Custom subnet mask 255 . 255 . 255 . 192
Total number of subnets 4
Total number of host addresses 64
Number of usable addresses 62
Number of bits borrowed 2

What is the 2nd 198.125.50.64 to 98.125.50.127


subnet range?
What is the subnet number 198.125.50.64
for the 2nd subnet?
What is the subnet 198.125.50.255
broadcast address for
the 4th subnet?
What are the assignable 198.125.50.129 to 198.125.50.190
addresses for the 3rd
subnet?

Solution:
Problem 13

Network Address 165.200.0.0 /26


Address class B
Default subnet mask 255 . 255 . 0 . 0
Custom subnet mask 255 . 255 . 255 . 192
Total number of subnets 1,024
Total number of host addresses 64
Number of usable addresses 62
Number of bits borrowed 10

What is the 10th 165.200.2.64 to 165.200.2.127


subnet range?
What is the subnet number 165.200.2.128
for the 11th subnet?
What is the subnet 165.200.255.191
broadcast address for
the 1023rd subnet?
What are the assignable 165.200.255.65 to 165.200.255.126
addresses for the 1022nd
subnet?

Solution:
Problem 14

Number of needed usable hosts 16


Network Address 200.10.10.0
Address class C
Default subnet mask 255 . 255 . 255 . 0
Custom subnet mask 255 . 255 . 255 . 224
Total number of subnets 8
Total number of host addresses 32
Number of usable addresses 30
Number of bits borrowed 3

What is the 7th 200.10.10.192 to 200.10.10.223


subnet range?
What is the subnet number 200.10.10.128
for the 5th subnet?
What is the subnet 200.10.10.127
broadcast address for
the 4th subnet?
What are the assignable 200.10.10.161 to 200.10.10.190
addresses for the 6th
subnet?

Solution:
Problem 15

Network Address 93.0.0.0 \19


Address class A
Default subnet mask 255 . 0 . 0 . 0
Custom subnet mask 255 . 255 . 224 . 0
Total number of subnets 2,048
Total number of host addresses 8,192
Number of usable addresses 8,190
Number of bits borrowed 11

What is the 15th 93.1.192.0 to 93.1.223.255


subnet range?
What is the subnet number 93.1.0.0
for the 9th subnet?
What is the subnet 93.0.223.255
broadcast address for
the 7th subnet?
What are the assignable 93.1.96.1 to 93.1.127.254
addresses for the 12th
subnet?

Solution:

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