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What is the first address of the first subblock

Assignment Help Computer Network Security
Reference no: EM132176686

Question: Network

1. An organization is assigned the IP address 14.24.75.0/26. The organization needs two subblocks: the first subblock with 15 devices, and the second one with 10 devices. Address space of the first subblock follows the address space of the second subblock.

a) What is the first address of the first subblock?

b) What is the last address of the first subblock?

c) What is the total number of addresses in the first subblock?

d) What is the first address of the secondsubblock?

e) What is the last address of the secondsubblock?

f) What is the total number of addresses in the second subblock?

g) What is the network address of the first subblock?

h) Can we add a third subblock with 44 devices? Explain.

Show or explain how to get your answers. Final answers should be in decimal dotted notation.

*Do not provide any drawings/figures in your answers. Otherwise your work is awarded a zero mark.

2. Based on the figure below, fill out the following routing tables using OSPF routing protocol.

Destination Network

Next Router

Cost

N1

 

10

N2

 

4

N3

 

6

N4

 

9

Destination Network

Next Router

Cost

N1

R2

 

N2

R2

 

N3

----------

 

N4

----------

 

 

 

 

 

3. Reliability can be achieved by adding error control services to the transport layer. What are the responsibilities of the error control at the Transport layer? List threeresponsibilities.

4. There are different transport layer protocols including Stop-and-Wait, GBN, and SR.

1) How efficiency is improved in GBN compared to Stop-and-Wait?

2) How efficiency is improved in SR compared to GBN?

Information related to above question is enclosed below:

Attachment:- Network.rar

Reference no: EM132176686

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