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1) A subnet mask of 255.255.255.224 with a destination IP address of 192.168.12.

ID: 2247783 • Letter: 1

Question

1) A subnet mask of 255.255.255.224 with a destination IP address of 192.168.12.135 is applied to a packet. Which subnet is the packet sent to?

2) A computer is assigned an IP address of 122.1.10.8 with a subnet mask of 255.255.255.192. The host sends a packet to another host with an IP address of 122.1.10.65. Is the destination IP address in the same subnet as 122.1.10.8? Show why or why not.

3) In your own words, define the purpose of a connection-oriented and a connectionless protocol. Give an example of each and why they are the protocol of choice over others.

4) Complete the following table. The first one is done for you as an example.

Network Address

Class

CIDR

Subnet Mask

#Subnets

#Hosts/Subnet

193.10.10.0

C

/28

255.255.255.240

16

14

135.45.0.0

128.123.0.0

211.123.83.0

10.0.0.0

32.0.0.0

204.204.5.0

223.201.65.0

156.35.0.0

116.0.0.0

145.23.0.0

199.12.1.0

15.0.0.0

5) Why is necessary to have a sequence number (SEQ) in TCP data packets?

Network Address

Class

CIDR

Subnet Mask

#Subnets

#Hosts/Subnet

193.10.10.0

C

/28

255.255.255.240

16

14

135.45.0.0

128.123.0.0

211.123.83.0

10.0.0.0

32.0.0.0

204.204.5.0

223.201.65.0

156.35.0.0

116.0.0.0

145.23.0.0

199.12.1.0

15.0.0.0

Explanation / Answer

1) subnet mask =255.255.255.224

prefix length=27

offbit=32-27=5

no of valid host per subnet=30

the packet is sending to 5th subnet of the network.

2) subnet mask =255.255.255.192

prfix length=26

offbit=32-26=6

no of valid host per network= 62

No the packet is sending to another subnet in each subnet there is only 62 valid host.

3) A connection oriented protocol are the protocol of transport layer. it require a session connection be esstablish before any data sending.it is also called a reliable network service.

Connectionless not require a session connection between sender and reciver.the sender simply start sending packet to the destination it is not a reliable protocol.

4) 135.45.0.0 B /16 255.255.0.0 65536

128.123.0.0 B /16 255.255.0.0 65536

211.123.83.0 C /24 255.255.255.0 254

10.0.0.0 A /8 255.0.0.0 16777216

32.0.0.0 A /8 255.0.0.0 16777216

204.204.5.0 C /24 255.255.255.0 254

223.201.65.0 C /24 255.255.255.0 254

156.35.0.0 B /16 255.255.0.0 65536

116.0.0.0 A /8 255.0.0.0 16777216

145.23.0.0 B /16 255.255.0.0 65536

199.12.1.0 C /24 255.255.255.0 254

15.0.0.0 A /8 255.0.0.0 16777216

TO calculate exactly need more information like CIDR value or host/subnet

5) From the starting point each packet sent by contains two sequence numbers one specify where the packet is in the stream and the another ACK sequence number signifies the number of bytes recived.