Answers to the Chapter 5 Q&A Section 731
12
Given the IP address 134.141.7.11 and the mask 255.255.255.0, what is the subnet
broadcast address?
The broadcast address is 134.141.7.255. The binary algorithm is shown in the table that
follows.
13
Given the IP address 193.193.7.7 and the mask 255.255.255.0, what is the broadcast
address?
The broadcast address is 193.193.7.255. Because this is a Class C address and the mask
used is 255.255.255.0 (the default), there is no subnetting in use. The binary algorithm is
shown in the table that follows.
14
Given the IP address 10.5.118.3 and the mask 255.255.0.0, what is the broadcast address?
The subnet is 10.5.0.0. The binary algorithm math is shown in the table that follows.
Address
134.141.7.11
1000 0110 1000 1101 0000 0111 0000 1011
Mask
255.255.255.0
1111 1111 1111 1111 1111 1111 0000 0000
Result
134.141.7.0
1000 0110 1000 1101 0000 0111 0000 0000
Broadcast
Address
134.141.7.255
1000 0110 1000 1101 0000 0111 1111 1111
Address
193.193.7.7
1100 0001 1100 0001 0000 0111 0000 0111
Mask
255.255.255.0
1111 1111 1111 1111 1111 1111 0000 0000
Result
193.193.7.0
1100 0001 1100 0001 0000 0111 0000 0000
Broadcast
Address
193.193.7.255
1100 0001 1100 0001 0000 0111 1111 1111
Address
10.5.118.3
0000 1010 0000 0101 0111 0110 0000 0011
Mask
255.255.0.0
1111 1111 1111 1111 0000 0000 0000 0000
Result
10.5.0.0
0000 1010 0000 0101 0000 0000 0000 0000
Broadcast
Address
10.5.255.255
0000 1010 0000 0101 1111 1111 1111 1111
apA.fm Page 731 Monday, March 20, 2000 5:24 PM