Assignment Communication and Networking

COMMUNICATION

1. (a) Write one advantage and disadvantage of Ring Topology.                                        1

(b) Expand the following terms with respect to Networking.                                                            2

      i).            FDM

    ii).            SMS

  iii).            IMAP

  iv).            WLL

(c)  Differentiate between HTML and XML?                                                                                    1)

d) “Kanganalay Cosmetics” is planning to start their offices in four major cities in Uttar Pradesh to provide cosmetic product support in its retail fields. The company has planned to set up their offices in Lucknow at three different locations and have named them as “Head office”,  “Sales office”, & “Prod office”. The company’s regional offices are located at  Varanasi, Kanpur & Saharanpur. A rough layout of the same is as follows :            

                                                                                                                       

         An approximate distance between these offices as per network survey team is as follows:

Place from	Place to	Distance
Head office	Sales office	15 KM
Head office	Prod office	8 KM
Head office	Varanasi Office	295 KM
Head office	Kanpur Office	195 KM
Head office	Saharanpur office	408 KM

         Number of computers :

                       

Head office	156
Sales office	25
Prod office	56
Varanasi Office	85
Kanpur Office	107
Saharanpur office	105

Suggest the placement of the repeater with justification.                                                      1

2 a) Differentiate between uploading & downloading.                                                                      1

       b)  Expand ISDN & SMTP.                                                                                                          1

       c)  What is the importance of URL in networking?                                                                       1

       d)  Define the term bandwidth. Write unit of bandwidth.                                                 1

e)      The Ever Mind organization has set up its new branch at Amritsar for its office and web based activities. It has 4 wings of buildings which are as follows :

Center to center distances between various blocks

Wing X to Wing Z	40 m
Wing Y to Wing Z	60 m
Wing X to Wing Y	135 m
Wing Y to Wing U	70 m
Wing X to Wing U	165 m
Wing U to Wing Z	80 m

Number of computers

Wing X	50
Wing Y	130
Wing U	40
Wing Z	15

i) Suggest a most suitable cable layout of connection among the wings and topology.                        1

ii) Suggest the most suitable place to house the server of this organization with a suitable reason with justification.                                                                                                                           1

 iii) Suggest the placement of the following devices with justification :a) Switch/Hub b) Repeater                                                                                                                                          1

iv) The organization is planning to link its head office situated in Delhi with the offices as Amritsar. Suggest a way to connect it, the cost is not the factor.                                                             1

Q-3a) Compare packet switching and message switching.                                                             (1)

b) Expand the following terminologies:                                                                       (1)

                        i) URL

                        ii) NFS

            c) What is web browser? Name any one.                                                                  (1)

            d) What do you understand by network security?                                                      (1)

    e) A company in Oman has 4 wings of buildings as shown in the diagram:                      (4)

           

   Center to center distances between various Buildings:

            W3 to W1                                50m

            W1 to W2                                60m

            W2 to W4                                25m

            W4 to W3                                170m

            W3 to W2                                125m

            W1 to w4                                 90m

     Number of computers in each of the wing:

            W1                   150

            W2                   15

            W3                   15

            W4                   25

Computers in each wing are networked but wings are not networked. The company has now decided to connect the wings also.

            i) Suggest a most suitable cable layout of the connection between the wings and topology.          

            ii) Suggest the most suitable wing to house the server of this company with a suitable reason.      

            iii) Suggest the placement of the following devices with justification:                       

                                    1) Internet connecting device/modem

                                    2) Repeater

iv) The company is planning to link its head office situated in India with the offices at Oman. Suggest an economic way to connect it; the company is ready to compromise on the speed of connectivity. Justify your answer.

4        A) Define the term Bandwidth. Give unit of Bandwidth.                                                         1

     

b)   Expand the following terminologies:                                                                           1

(i)         HTML                                      (ii) XML

c)      Define the term firewall.                                                                                              1

d)      What is the importance of URL in networking?                                                                       1

      e)Ravya Industries has set up its new center at Kaka Nagar for its office and web based activities. The company compound has 4 buildings as shown in the diagram below:

                                                Center to center distances between various buildings is as follows:

Harsh Building to Raj Building	50 m
Raz Building to Fazz Building	60 m
Fazz Building to Jazz Building	25 m
Jazz Building to Harsh Building	170 m
Harsh Building to Fazz Building	125 m
Raj Building to Jazz Building	90 m

 

                        Number of Computers in each of the buildings is follows:

Harsh Building	15
Raj Building	150
Fazz Building	15
Jazz Bulding	25

           

e1) Suggest a cable layout of connections between the buildings.                                           1

e2) Suggest the most suitable place (i.e. building) to house the server of this organisation with a suitable reason.                                                                                                      1

e3)       Suggest the placement of the following devices with justification:                  1

(i)                 Internet Connecting Device/Modem

(ii)               Switch

e4)       The organisation is planning to link its sale counter situated in various parts of the same city, which type of network out of LAN, MAN or WAN will be formed? Justify your answer.