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8192019 ECX4233_TMA1_2016
httpslidepdfcomreaderfullecx4233tma12016 16
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8192019 ECX4233_TMA1_2016
httpslidepdfcomreaderfullecx4233tma12016 26
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bull 983110 983114 983122983141983140983149983145983148983148 amp 983105 983120 983126983137983148983140983137983154 983085 983123983120983107 983108983145983143983145983156983137983148 983124983141983148983141983152983144983151983150983141 983109983160983139983144983137983150983143983141983155
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ECX 4233 ndash CommunicationAcademic Year 2016
Due date 29th
February 2016
Tutor Marked Assignment 1
Guidelines
bull You may need to refer study materials in addition to given course materials
bull State your references (other than giving references)
bull Those who want to improve presentation skill can present this assignment in a
PowerPoint format The presentation will schedule on request For more information
logging to moodle class or drop me an email
bull Write your answers in point form
Activity 1
1) What is meant by ldquotelecommunicationrdquo Explain it in your own words
2) Study about the historical evolution of telecommunication industry and discuss howthe standardization process help to growth of the industry
3) What are the most important advantages of global telecommunications
Standards Name three global standards organizations and list their responsibilities
Name the national body responsible for telecommunication standards
4) Giving reasons explain why following parties interested in global telecommunication
standards
(i)
Equipment manufactures(ii) Network operators
(iii)Academic experts
(iv) The service uses
Activity 2
1) Giving reasons explain what network topology is most suitable in telecommunication
networks
2)
Explain the differences between the RSU (Remote Subscriber Unit) and a Localexchange
Importantbull Marks will reduce according to the department assignment policy
bull Zero marks will be given for plagiarism
bull Write on your own words
bull Clear and brief answers with no unnecessary details will gain maximum marks
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3) Imagine there is a small island which have only 5 states Each state is not more than
983089983088 In size and assume each state has 10000 subscribers All are equally
distributed Suggest PSTN hierarchical structure and number planning for the same
State any assumption you have made
4) In modern telecommunication networks there is a trend to way of hierarchical
routing What can be the reasons behind that Explain it in your own words
Activity 3
1) With the aid of the diagrams explains the operation principle of a conventional
telephone
2) Compare and contrast following
(i) Local battery telephone and Central battery telephone system
(ii) Rotary dialing and tone dialing
3) What is a 2W4W hybrid and why is it needed at the end of the subscriber line
Explain how a 2W4W hybrid prevents the signal from the network (receiving pair)
from looping back to the transmitting pair
4) In a telephone set why speaker not hearing his own voice from phone receiver
Activity 4
1 Circuit switching is used to create a direct physical connection in a network while
message and packet switching used in store and forward type network Compare the
transfer time of each type of switching system and explain draw backs of message
switching over packet switching
2 Write short notes in following topics
MPLS - Multiprotocol Label Switching
MSAN - A multi-service access node
3 Study evaluation of switching technologies from manual switching to softswitching
Compare advantages of each technology
4 Discuss the advantages of SPC automation in telephone switching Compare
centralized SPC and distributed SPC
Activity 5
1 In telephony signalling is broken down in three functional areas
(i) Supervisory
(ii) Address(iii)Call progress audible-visual
Explain the purpose of each
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2 Differentiate following Write it in point form
(i) In-Band Signalling and Out-of-Band Signalling
(ii) Between line signalling and interregister signalling
(iii)A common channel and Channel associated signalling
(iv) Limitations of CAS and CCS
3 Study No 7 signalling types and explain the signalling nodes and their functions
Activity 6
1 Define grade of service How can we improve the grade of service Give the
downside of this What is the ideal value for grade of service Can this value be
achieved in practice Justify your answer
2 Figure 1 shows the change of the traffic intensity in a one day Give your suggestions
to maximally utilize the network resources and generate more revenue
Figure 1
3 In a particular exchange during busy hour 900 calls were offered to a group of trunks
during this time 6 calls were lost The average call duration being 3 minutes
Calculate
(i) Traffic offered in Erlangs
(ii) Traffic lost
(iii)Grade of service
(iv) Period of congestion
4 A group of 12 trunks is offered 4E of traffic Find
(i) The Grade of Service
(ii) The probability that at least 3 trunks are free
(iii) If one trunk is out of service what will be the Grade of Service
(iv) Due to new year wishes offered traffic increased by 10 What will be the
Grade of Service now
HOURS OF
THE DAY
0 2 4
TRAFFIC
6 8 10 12 2 4 6 8 10 12
AM NOONMID
NIGHT
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bull 983105983150983151983147983144 983123983145983150983143983144 983098 983120983154983145983150983139983145983152983148983141983155 983151983142 983107983151983149983149983157983150983145983139983137983156983145983151983150 983109983150983143983145983150983141983141983154983145983150983143
bull 983110 983114 983122983141983140983149983145983148983148 amp 983105 983120 983126983137983148983140983137983154 983085 983123983120983107 983108983145983143983145983156983137983148 983124983141983148983141983152983144983151983150983141 983109983160983139983144983137983150983143983141983155
bull 983127983137983161983150983141 983124983151983149983137983155983145 (2004) 983105983140983158983137983150983139983141983140 983109983148983141983139983156983154983151983150983145983139 983107983151983149983149983157983150983145983139983137983156983145983151983150983155 983123983161983155983156983141983149983155 6983156983144
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bull 9831099831079831284233 983117983151983151983140983148983141 983158983145983154983156983157983137983148 983139983148983137983155983155983154983151983151983149 983085 983144983156983156983152983098983151983157983155983148983150983151983140983141983155983148983147
bull 9831099831079831284233 983119983125983123983116 983158983145983154983156983157983137983148 983139983148983137983155983155983154983151983151983149 983085 983144983156983156983152983098983087983087983089983097983090983086983090983092983096983086983095983091983086983092983092983087983149983137983150983144983137983156983138983145983150983087983140983151983151983154983155983156983141983152983103983139983148983137983155983155983101983141983139983160983092983090983091983091
bull 983111983151983151983143983148983141 983140983154983145983158983141 983085 983144983156983156983152983155983143983151983151983143983148983156M799831554
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C983144983137983150983143983141983154983155 983145983150 983139983151983157983154983155983141 983155983139983144983141983140983157983148983141 983137983150983140 983151983156983144983141983154 983157983154983143983141983150983156 983145983150983142983151983154983149983137983156983145983151983150 983159983145983148983148 983145983150983142983151983154983149983141983140 983158983145983137 983155983149983155 983137983150983140 983141983149983137983145983148983155
8192019 ECX4233_TMA1_2016
httpslidepdfcomreaderfullecx4233tma12016 46
983092 983109983107983128 983092983090983091983091 991251 983107983151983149983149983157983150983145983139983137983156983145983151983150 983090983088983089983092983087983090983088983089983093
ECX 4233 ndash CommunicationAcademic Year 2016
Due date 29th
February 2016
Tutor Marked Assignment 1
Guidelines
bull You may need to refer study materials in addition to given course materials
bull State your references (other than giving references)
bull Those who want to improve presentation skill can present this assignment in a
PowerPoint format The presentation will schedule on request For more information
logging to moodle class or drop me an email
bull Write your answers in point form
Activity 1
1) What is meant by ldquotelecommunicationrdquo Explain it in your own words
2) Study about the historical evolution of telecommunication industry and discuss howthe standardization process help to growth of the industry
3) What are the most important advantages of global telecommunications
Standards Name three global standards organizations and list their responsibilities
Name the national body responsible for telecommunication standards
4) Giving reasons explain why following parties interested in global telecommunication
standards
(i)
Equipment manufactures(ii) Network operators
(iii)Academic experts
(iv) The service uses
Activity 2
1) Giving reasons explain what network topology is most suitable in telecommunication
networks
2)
Explain the differences between the RSU (Remote Subscriber Unit) and a Localexchange
Importantbull Marks will reduce according to the department assignment policy
bull Zero marks will be given for plagiarism
bull Write on your own words
bull Clear and brief answers with no unnecessary details will gain maximum marks
8192019 ECX4233_TMA1_2016
httpslidepdfcomreaderfullecx4233tma12016 56
983093 983109983107983128 983092983090983091983091 991251 983107983151983149983149983157983150983145983139983137983156983145983151983150 983090983088983089983092983087983090983088983089983093
3) Imagine there is a small island which have only 5 states Each state is not more than
983089983088 In size and assume each state has 10000 subscribers All are equally
distributed Suggest PSTN hierarchical structure and number planning for the same
State any assumption you have made
4) In modern telecommunication networks there is a trend to way of hierarchical
routing What can be the reasons behind that Explain it in your own words
Activity 3
1) With the aid of the diagrams explains the operation principle of a conventional
telephone
2) Compare and contrast following
(i) Local battery telephone and Central battery telephone system
(ii) Rotary dialing and tone dialing
3) What is a 2W4W hybrid and why is it needed at the end of the subscriber line
Explain how a 2W4W hybrid prevents the signal from the network (receiving pair)
from looping back to the transmitting pair
4) In a telephone set why speaker not hearing his own voice from phone receiver
Activity 4
1 Circuit switching is used to create a direct physical connection in a network while
message and packet switching used in store and forward type network Compare the
transfer time of each type of switching system and explain draw backs of message
switching over packet switching
2 Write short notes in following topics
MPLS - Multiprotocol Label Switching
MSAN - A multi-service access node
3 Study evaluation of switching technologies from manual switching to softswitching
Compare advantages of each technology
4 Discuss the advantages of SPC automation in telephone switching Compare
centralized SPC and distributed SPC
Activity 5
1 In telephony signalling is broken down in three functional areas
(i) Supervisory
(ii) Address(iii)Call progress audible-visual
Explain the purpose of each
8192019 ECX4233_TMA1_2016
httpslidepdfcomreaderfullecx4233tma12016 66
983094 983109983107983128 983092983090983091983091 991251 983107983151983149983149983157983150983145983139983137983156983145983151983150 983090983088983089983092983087983090983088983089983093
2 Differentiate following Write it in point form
(i) In-Band Signalling and Out-of-Band Signalling
(ii) Between line signalling and interregister signalling
(iii)A common channel and Channel associated signalling
(iv) Limitations of CAS and CCS
3 Study No 7 signalling types and explain the signalling nodes and their functions
Activity 6
1 Define grade of service How can we improve the grade of service Give the
downside of this What is the ideal value for grade of service Can this value be
achieved in practice Justify your answer
2 Figure 1 shows the change of the traffic intensity in a one day Give your suggestions
to maximally utilize the network resources and generate more revenue
Figure 1
3 In a particular exchange during busy hour 900 calls were offered to a group of trunks
during this time 6 calls were lost The average call duration being 3 minutes
Calculate
(i) Traffic offered in Erlangs
(ii) Traffic lost
(iii)Grade of service
(iv) Period of congestion
4 A group of 12 trunks is offered 4E of traffic Find
(i) The Grade of Service
(ii) The probability that at least 3 trunks are free
(iii) If one trunk is out of service what will be the Grade of Service
(iv) Due to new year wishes offered traffic increased by 10 What will be the
Grade of Service now
HOURS OF
THE DAY
0 2 4
TRAFFIC
6 8 10 12 2 4 6 8 10 12
AM NOONMID
NIGHT
8192019 ECX4233_TMA1_2016
httpslidepdfcomreaderfullecx4233tma12016 36
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CA M983137983154983147 = (B983124MA)015 + (983123B983124MA)015 + 1B(CA983124)03 + (LAB)04 gt= 40 (LAB)1 gt= 40
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983120983137983155983155983159983151983154983140 983098 983155983085983157983155983141983154
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983137983150983140 983137983139983139983141983155983155983145983150983143 983161983151983157983154 983139983151983157983154983155983141 983152983148983141983137983155983141 983139983151983150983156983137983139983156 M983155 G983141983141983156983144983137 K983157983148983137983155983141983147983141983154983137 (983140983143983147983157983148983151983157983137983139983148983147)
I983142 983161983151983157 983144983137983158983141 983137983150983161 983153983157983141983154983145983141983155 983154983141983143983137983154983140983145983150983143 983156983144983141 983139983151983150983156983141983150983156 983151983142 983156983144983141 983139983151983157983154983155983141 983152983148983141983137983155983141 983139983151983150983156983137983139983156 983156983144983141 983139983151983157983154983155983141 983139983151983151983154983140983145983150983137983156983151983154
983123983152983141983139983145983137983148 N983151983156983141
1 983122983141983143983145983155983156983141983154983145983150983143 983142983151983154 983149983151983151983140983148983141 983139983148983137983155983155 983137983150983140 983142983154983141983153983157983141983150983156 983158983145983155983145983156983155 983137983154983141 983141983155983155983141983150983156983145983137983148 A983155983155983145983143983150983149983141983150983156983155 983149983137983147983154983155
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2 K983150983151983159983148983141983140983143983141 983145983150 MA983124LAB 983149983137983161 983154983141983153983157983145983154983141 983129983151983157 983137983154983141 983137983140983158983145983155983141983140 983156983151 983148983141983137983154983150 983139983151983149983149983157983150983145983139983137983156983145983151983150 983138983148983151983139983147 983155983141983156 983145983150
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3 F983145983148983148 983156983144983141 983143983151983151983143983148983141 983142983151983154983149 983143983145983158983141983150 983138983141983148983151983159
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8192019 ECX4233_TMA1_2016
httpslidepdfcomreaderfullecx4233tma12016 46
983092 983109983107983128 983092983090983091983091 991251 983107983151983149983149983157983150983145983139983137983156983145983151983150 983090983088983089983092983087983090983088983089983093
ECX 4233 ndash CommunicationAcademic Year 2016
Due date 29th
February 2016
Tutor Marked Assignment 1
Guidelines
bull You may need to refer study materials in addition to given course materials
bull State your references (other than giving references)
bull Those who want to improve presentation skill can present this assignment in a
PowerPoint format The presentation will schedule on request For more information
logging to moodle class or drop me an email
bull Write your answers in point form
Activity 1
1) What is meant by ldquotelecommunicationrdquo Explain it in your own words
2) Study about the historical evolution of telecommunication industry and discuss howthe standardization process help to growth of the industry
3) What are the most important advantages of global telecommunications
Standards Name three global standards organizations and list their responsibilities
Name the national body responsible for telecommunication standards
4) Giving reasons explain why following parties interested in global telecommunication
standards
(i)
Equipment manufactures(ii) Network operators
(iii)Academic experts
(iv) The service uses
Activity 2
1) Giving reasons explain what network topology is most suitable in telecommunication
networks
2)
Explain the differences between the RSU (Remote Subscriber Unit) and a Localexchange
Importantbull Marks will reduce according to the department assignment policy
bull Zero marks will be given for plagiarism
bull Write on your own words
bull Clear and brief answers with no unnecessary details will gain maximum marks
8192019 ECX4233_TMA1_2016
httpslidepdfcomreaderfullecx4233tma12016 56
983093 983109983107983128 983092983090983091983091 991251 983107983151983149983149983157983150983145983139983137983156983145983151983150 983090983088983089983092983087983090983088983089983093
3) Imagine there is a small island which have only 5 states Each state is not more than
983089983088 In size and assume each state has 10000 subscribers All are equally
distributed Suggest PSTN hierarchical structure and number planning for the same
State any assumption you have made
4) In modern telecommunication networks there is a trend to way of hierarchical
routing What can be the reasons behind that Explain it in your own words
Activity 3
1) With the aid of the diagrams explains the operation principle of a conventional
telephone
2) Compare and contrast following
(i) Local battery telephone and Central battery telephone system
(ii) Rotary dialing and tone dialing
3) What is a 2W4W hybrid and why is it needed at the end of the subscriber line
Explain how a 2W4W hybrid prevents the signal from the network (receiving pair)
from looping back to the transmitting pair
4) In a telephone set why speaker not hearing his own voice from phone receiver
Activity 4
1 Circuit switching is used to create a direct physical connection in a network while
message and packet switching used in store and forward type network Compare the
transfer time of each type of switching system and explain draw backs of message
switching over packet switching
2 Write short notes in following topics
MPLS - Multiprotocol Label Switching
MSAN - A multi-service access node
3 Study evaluation of switching technologies from manual switching to softswitching
Compare advantages of each technology
4 Discuss the advantages of SPC automation in telephone switching Compare
centralized SPC and distributed SPC
Activity 5
1 In telephony signalling is broken down in three functional areas
(i) Supervisory
(ii) Address(iii)Call progress audible-visual
Explain the purpose of each
8192019 ECX4233_TMA1_2016
httpslidepdfcomreaderfullecx4233tma12016 66
983094 983109983107983128 983092983090983091983091 991251 983107983151983149983149983157983150983145983139983137983156983145983151983150 983090983088983089983092983087983090983088983089983093
2 Differentiate following Write it in point form
(i) In-Band Signalling and Out-of-Band Signalling
(ii) Between line signalling and interregister signalling
(iii)A common channel and Channel associated signalling
(iv) Limitations of CAS and CCS
3 Study No 7 signalling types and explain the signalling nodes and their functions
Activity 6
1 Define grade of service How can we improve the grade of service Give the
downside of this What is the ideal value for grade of service Can this value be
achieved in practice Justify your answer
2 Figure 1 shows the change of the traffic intensity in a one day Give your suggestions
to maximally utilize the network resources and generate more revenue
Figure 1
3 In a particular exchange during busy hour 900 calls were offered to a group of trunks
during this time 6 calls were lost The average call duration being 3 minutes
Calculate
(i) Traffic offered in Erlangs
(ii) Traffic lost
(iii)Grade of service
(iv) Period of congestion
4 A group of 12 trunks is offered 4E of traffic Find
(i) The Grade of Service
(ii) The probability that at least 3 trunks are free
(iii) If one trunk is out of service what will be the Grade of Service
(iv) Due to new year wishes offered traffic increased by 10 What will be the
Grade of Service now
HOURS OF
THE DAY
0 2 4
TRAFFIC
6 8 10 12 2 4 6 8 10 12
AM NOONMID
NIGHT
8192019 ECX4233_TMA1_2016
httpslidepdfcomreaderfullecx4233tma12016 46
983092 983109983107983128 983092983090983091983091 991251 983107983151983149983149983157983150983145983139983137983156983145983151983150 983090983088983089983092983087983090983088983089983093
ECX 4233 ndash CommunicationAcademic Year 2016
Due date 29th
February 2016
Tutor Marked Assignment 1
Guidelines
bull You may need to refer study materials in addition to given course materials
bull State your references (other than giving references)
bull Those who want to improve presentation skill can present this assignment in a
PowerPoint format The presentation will schedule on request For more information
logging to moodle class or drop me an email
bull Write your answers in point form
Activity 1
1) What is meant by ldquotelecommunicationrdquo Explain it in your own words
2) Study about the historical evolution of telecommunication industry and discuss howthe standardization process help to growth of the industry
3) What are the most important advantages of global telecommunications
Standards Name three global standards organizations and list their responsibilities
Name the national body responsible for telecommunication standards
4) Giving reasons explain why following parties interested in global telecommunication
standards
(i)
Equipment manufactures(ii) Network operators
(iii)Academic experts
(iv) The service uses
Activity 2
1) Giving reasons explain what network topology is most suitable in telecommunication
networks
2)
Explain the differences between the RSU (Remote Subscriber Unit) and a Localexchange
Importantbull Marks will reduce according to the department assignment policy
bull Zero marks will be given for plagiarism
bull Write on your own words
bull Clear and brief answers with no unnecessary details will gain maximum marks
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983093 983109983107983128 983092983090983091983091 991251 983107983151983149983149983157983150983145983139983137983156983145983151983150 983090983088983089983092983087983090983088983089983093
3) Imagine there is a small island which have only 5 states Each state is not more than
983089983088 In size and assume each state has 10000 subscribers All are equally
distributed Suggest PSTN hierarchical structure and number planning for the same
State any assumption you have made
4) In modern telecommunication networks there is a trend to way of hierarchical
routing What can be the reasons behind that Explain it in your own words
Activity 3
1) With the aid of the diagrams explains the operation principle of a conventional
telephone
2) Compare and contrast following
(i) Local battery telephone and Central battery telephone system
(ii) Rotary dialing and tone dialing
3) What is a 2W4W hybrid and why is it needed at the end of the subscriber line
Explain how a 2W4W hybrid prevents the signal from the network (receiving pair)
from looping back to the transmitting pair
4) In a telephone set why speaker not hearing his own voice from phone receiver
Activity 4
1 Circuit switching is used to create a direct physical connection in a network while
message and packet switching used in store and forward type network Compare the
transfer time of each type of switching system and explain draw backs of message
switching over packet switching
2 Write short notes in following topics
MPLS - Multiprotocol Label Switching
MSAN - A multi-service access node
3 Study evaluation of switching technologies from manual switching to softswitching
Compare advantages of each technology
4 Discuss the advantages of SPC automation in telephone switching Compare
centralized SPC and distributed SPC
Activity 5
1 In telephony signalling is broken down in three functional areas
(i) Supervisory
(ii) Address(iii)Call progress audible-visual
Explain the purpose of each
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983094 983109983107983128 983092983090983091983091 991251 983107983151983149983149983157983150983145983139983137983156983145983151983150 983090983088983089983092983087983090983088983089983093
2 Differentiate following Write it in point form
(i) In-Band Signalling and Out-of-Band Signalling
(ii) Between line signalling and interregister signalling
(iii)A common channel and Channel associated signalling
(iv) Limitations of CAS and CCS
3 Study No 7 signalling types and explain the signalling nodes and their functions
Activity 6
1 Define grade of service How can we improve the grade of service Give the
downside of this What is the ideal value for grade of service Can this value be
achieved in practice Justify your answer
2 Figure 1 shows the change of the traffic intensity in a one day Give your suggestions
to maximally utilize the network resources and generate more revenue
Figure 1
3 In a particular exchange during busy hour 900 calls were offered to a group of trunks
during this time 6 calls were lost The average call duration being 3 minutes
Calculate
(i) Traffic offered in Erlangs
(ii) Traffic lost
(iii)Grade of service
(iv) Period of congestion
4 A group of 12 trunks is offered 4E of traffic Find
(i) The Grade of Service
(ii) The probability that at least 3 trunks are free
(iii) If one trunk is out of service what will be the Grade of Service
(iv) Due to new year wishes offered traffic increased by 10 What will be the
Grade of Service now
HOURS OF
THE DAY
0 2 4
TRAFFIC
6 8 10 12 2 4 6 8 10 12
AM NOONMID
NIGHT
8192019 ECX4233_TMA1_2016
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983093 983109983107983128 983092983090983091983091 991251 983107983151983149983149983157983150983145983139983137983156983145983151983150 983090983088983089983092983087983090983088983089983093
3) Imagine there is a small island which have only 5 states Each state is not more than
983089983088 In size and assume each state has 10000 subscribers All are equally
distributed Suggest PSTN hierarchical structure and number planning for the same
State any assumption you have made
4) In modern telecommunication networks there is a trend to way of hierarchical
routing What can be the reasons behind that Explain it in your own words
Activity 3
1) With the aid of the diagrams explains the operation principle of a conventional
telephone
2) Compare and contrast following
(i) Local battery telephone and Central battery telephone system
(ii) Rotary dialing and tone dialing
3) What is a 2W4W hybrid and why is it needed at the end of the subscriber line
Explain how a 2W4W hybrid prevents the signal from the network (receiving pair)
from looping back to the transmitting pair
4) In a telephone set why speaker not hearing his own voice from phone receiver
Activity 4
1 Circuit switching is used to create a direct physical connection in a network while
message and packet switching used in store and forward type network Compare the
transfer time of each type of switching system and explain draw backs of message
switching over packet switching
2 Write short notes in following topics
MPLS - Multiprotocol Label Switching
MSAN - A multi-service access node
3 Study evaluation of switching technologies from manual switching to softswitching
Compare advantages of each technology
4 Discuss the advantages of SPC automation in telephone switching Compare
centralized SPC and distributed SPC
Activity 5
1 In telephony signalling is broken down in three functional areas
(i) Supervisory
(ii) Address(iii)Call progress audible-visual
Explain the purpose of each
8192019 ECX4233_TMA1_2016
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983094 983109983107983128 983092983090983091983091 991251 983107983151983149983149983157983150983145983139983137983156983145983151983150 983090983088983089983092983087983090983088983089983093
2 Differentiate following Write it in point form
(i) In-Band Signalling and Out-of-Band Signalling
(ii) Between line signalling and interregister signalling
(iii)A common channel and Channel associated signalling
(iv) Limitations of CAS and CCS
3 Study No 7 signalling types and explain the signalling nodes and their functions
Activity 6
1 Define grade of service How can we improve the grade of service Give the
downside of this What is the ideal value for grade of service Can this value be
achieved in practice Justify your answer
2 Figure 1 shows the change of the traffic intensity in a one day Give your suggestions
to maximally utilize the network resources and generate more revenue
Figure 1
3 In a particular exchange during busy hour 900 calls were offered to a group of trunks
during this time 6 calls were lost The average call duration being 3 minutes
Calculate
(i) Traffic offered in Erlangs
(ii) Traffic lost
(iii)Grade of service
(iv) Period of congestion
4 A group of 12 trunks is offered 4E of traffic Find
(i) The Grade of Service
(ii) The probability that at least 3 trunks are free
(iii) If one trunk is out of service what will be the Grade of Service
(iv) Due to new year wishes offered traffic increased by 10 What will be the
Grade of Service now
HOURS OF
THE DAY
0 2 4
TRAFFIC
6 8 10 12 2 4 6 8 10 12
AM NOONMID
NIGHT
8192019 ECX4233_TMA1_2016
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983094 983109983107983128 983092983090983091983091 991251 983107983151983149983149983157983150983145983139983137983156983145983151983150 983090983088983089983092983087983090983088983089983093
2 Differentiate following Write it in point form
(i) In-Band Signalling and Out-of-Band Signalling
(ii) Between line signalling and interregister signalling
(iii)A common channel and Channel associated signalling
(iv) Limitations of CAS and CCS
3 Study No 7 signalling types and explain the signalling nodes and their functions
Activity 6
1 Define grade of service How can we improve the grade of service Give the
downside of this What is the ideal value for grade of service Can this value be
achieved in practice Justify your answer
2 Figure 1 shows the change of the traffic intensity in a one day Give your suggestions
to maximally utilize the network resources and generate more revenue
Figure 1
3 In a particular exchange during busy hour 900 calls were offered to a group of trunks
during this time 6 calls were lost The average call duration being 3 minutes
Calculate
(i) Traffic offered in Erlangs
(ii) Traffic lost
(iii)Grade of service
(iv) Period of congestion
4 A group of 12 trunks is offered 4E of traffic Find
(i) The Grade of Service
(ii) The probability that at least 3 trunks are free
(iii) If one trunk is out of service what will be the Grade of Service
(iv) Due to new year wishes offered traffic increased by 10 What will be the
Grade of Service now
HOURS OF
THE DAY
0 2 4
TRAFFIC
6 8 10 12 2 4 6 8 10 12
AM NOONMID
NIGHT