5201-network Design And Technologies Questions 5b4g64

VALLIAMMAI ENGINEERING COLLEGE SRM Nagar, Kattankulathur – 603 203 DEPARTMENT OF COMPUTER SCIENCE AND ENGINEERING

QUESTION BANK

II SEMESTER 5201-Network Design and Technologies Regulation – 2017

Academic Year 2018 – 19

Prepared by Ms. S. Benila, Assistant Professor/CSE

VALLIAMMAI ENGINEERING COLLEGE SRM Nagar, Kattankulathur – 603 203. DEARTMENT OF COMPUTER SCIENCE AND ENGINEERING QUESTION BANK SUBJECT

: 5201 NETWORK DESIGN AND TECHNOLOGIES

SEM / YEAR: II/I UNIT I - NETWORK DESIGN Advanced multiplexing – Code Division Multiplexing, DWDM and OFDM – Shared media networks – Switched networks – End to end semantics – Connectionless, Connection oriented, Wireless Scenarios –Applications, Quality of Service – End to end level and network level solutions. LAN cabling topologies – Ethernet Switches, Routers, Firewalls and L3 switches – Remote Access Technologies and Devices – Modems and DSLs – SLIP and PPP – Core networks, and distribution networks. PART A Q.No 1. 2. 3. 4. 5.

Questions Define Code Division Multiplexing. Identify the categories of wireless networks. Differentiate connection oriented and connection less packet switching List the hardware components of DSL. .Point out the features and techniques for End to end semantics.

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Give the schematic diagram of basic OFDM system. .What is the need of remote access? List the technologies.

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List the LAN cabling technologies. Compare and contrast layer 2 switching and layer 3 switching.

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Define firewall. What are the features of firewall? . Illustrate the frame format of PPP.

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Classify the types of routers. Distinguish between SLIP & PPP. Express the role of switching in a network. .Examine the advantages of shared medium in communication

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networks. Integrate the QOS parameters for end to end level and network level solutions. Compose a role which is played by multiplexing in communication. Assess the features of DWDM. Is it better than code division multiplexing? Discover the types of LAN. Recommend multi carrier CDMA for communication networks. PART – B

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(i) Analyze the shared media networks. (7) (ii) Explain in detail about the different types of networking devices. (6)

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Describe in detail about the components required for deg a Network. and contrast SLIP and PPP. (7) . (i)Compare (13) (ii) Explain the frame formats and operation of PPP. (6)

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Examine the remote access technologies.(13)

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(i)Describe CDMA in detail.(8) (ii) Examine the taxonomy of communication networks. (5) Describe the QOS parameters in detail.(13)

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Discuss about the different types of LAN cabling topologies(13) (i)Classify the configurations of firewalls.(7) (ii)Examine how the firewalls are designed .(6) Generalize the role of switches in a network. Integrate the configuration options and switching Techniques. (13) (i)Examine the characteristics of DWDM. (5) (ii)Describe the topologies of DWDM. (6)

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Explain the different categories of multiple access techniques.(13)

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Discuss: (i) Core networks. (7) (ii) Distribution networks.(6) What is OFDM? Explain in detail. (13)

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(i)Summarize the functions of ATM switch.(7) (ii)Explain packet switching in detail. PART -C .(13) Describe about various technologies in wireless domain.

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Formulate a reason why switching is mandatory in networking. Explain the layer2 switching and layer 3 switching.

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Analyze the firewall design considerations. What are the limitations of firewalls? Explain the packet filtering firewall.

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Evaluate the advantages of shared communication medium. BTL4 Analyze Highlight the features of different topologies. UNIT II - WIRELESS NETWORKS IEEE802.16 and WiMAX – Security – Advanced 802.16 Functionalities – Mobile WiMAX 802.16e – Network Infrastructure – WLAN – Configuration – Management Operation – Security – IEEE 802.11e and WMM – QoS – Comparison of WLAN and UMTS – Bluetooth – Protocol Stack –Security-Profiles. PART – A 1. 2. 3. 4. 5.

Define Best effort service. What are the steps required for a SS to connect to the network Express the idea of service flow. Why does the 802.16 both FDD and TDD mode of operation? Interpret the theoretical and practical bandwidths offered by an 802.16 systems when used for connecting end s to the Internet.

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Differentiate between the coordination scheme used in WLAN (802.11) and the one used in 802.16 systems? Prepare the reasons Why do 802.11g networks use the RTS/CTS mechanism? Show how can a mesh network extend the range of a base station What is fast base station switching?

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Illustrate the 2x2 MIMO transmission. Differentiate ‘ad hoc’ and ‘BSS’ modes of a WLAN? Analyze why are acknowledgment frames used in a WLAN?. Compare and contrast inquiry and paging. Develop a solution to transfer different applications simultaneously by the L2CAP protocol. Assess the tasks of link manager. Compare and contrast authentication and authorization. Analyze Why Bluetooth requires a high number of different profiles? List the advantages of integrating both wireless LAN and bluetooth in a single device?

19. Demonstrate the WMM priority classes with example. 20. What is master slave configuration? PART-B

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Examine the following frame structures. (i) FDD uplink frame structure. (7) (ii) TDD frame structure. (6) Examine the following QOS parameters: (i) UGS(4) (ii) Best Effort Service (BS)(4) (iii) The Real-Time Polling Service (5)

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Describe the following in detail: (i) Connecting to the Network (7) (ii) Dynamic Frequency Selection.(6) Explain the architecture of WiMax with a neat diagram.(13)

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Demonstrate the principle of MAC management of data. (13)

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Summarize following the key mechanisms in 802.16e BTL2 (i) Handover (7) (ii) Idle state. (6) With a neat diagram explain mobile WiMAX Network BTL4 Infrastructure. (13) (i) Examine the Functionalities of a multipurpose WiMAX BTL3 router device?(7) (ii) Examine how does WLAN offers QOS.(6)

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(i)Explain the MAC layer of WLAN.(13)

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Summarize i) WPA and WPA Personal Mode Authentication.(7) ii) WPA and WPA2 Enterprise Mode Authentication.(6) Integrate the different modulation schemes in WLAN (13)

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Describe the following Bluetooth security mechanisms (i) Pairing up to Bluetooth 2.0 (5) (ii) Athentication (4) (iii)Encryption (4) (i) Compare Wireless LAN and UMTS.(7) (ii) Discuss about the Service Discovery Protocol in detail.(6)

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Analyze Bluetooth protocol stack(13)

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PART-C

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Evaluate why fragmentation and packing is used for transmitting IP packets over the 802.16 air interface? Explain the air interface in detail.

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(i) What is the basic architectural difference between a WiMAX radio network and other radio networks? Rewrite the features of WiMax. Evaluate how DCF method is used for telephony and video streaming applications? What are the challenges and disadvantages? Analyze the security holes exist in the wired equivalent privacy (WEP) procedures and how are they solved by WPA and WPA2?

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UNIT III - CELLULAR NETWORKS GSM – Mobility Management and call control – GPRS – Network Elements – Radio Resource Management – Mobility Management and Session Management – Small Screen Web Browsing over GPRS and EDGE – MMS over GPRS – UMTS – Channel Structure on the Air Interface – UTRAN – Core and Radio Network Mobility Management – UMTS Security. PART – A 1. Define GSM. 2. Name the most important components of the GSM Network and theirauthenticated tasks 3. Subsystem Show how(NSS) is a subscriber in the GSM network? Why is an authentication necessary? 4. Evaluate in what ways is GPRS better than GSM? 5. What is CAMEL and for which services can it be used? 6. Classify the functions of HLR and VLR. 7. Differentiate between circuit-switched and packet-switched data Give the responsibilities of new network elements that have been 8. transmission? 9. introduced Define temporary block flow. with GPRS.s? network. 10. Discuss about the different parts of MMS message. 11. Give the advantages of UMTS radio network. 12. Analyze the purpose compressed code. 13. 14. 15. 16. 17. 18. 19. 20.

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Which steps are necessary to digitize a speech signal in a mobile BTL1 device before it can be sent? Point out the actions performed during an inter-SGSN routing area BTL4 update over the (IRAU)? GSM air interface? Generalize the tasks performed by the RISC processor and which BTL6 tasks are performed by the DSP in a mobile device? Discriminate between GPRS ready state and the GPRS standby BTL5 state? Show the the Cell-DCH and the Cell-FACH RRC states? BTL3 Point out the advantages of the Enhanced-DCH (E-DCH) concept? BTL4



Generalize Which options does the Node-B have to schedule the . uplink traffic of different E-DCH mobile devices in a cell? What is SRNS relocation?

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PART – B (i) Explain The Classic SS-7 Protocol Stack(7) (ii) Explain IP-Based SS-7 Protocol Stack (6) Describe the GSM architecture in detail.(13)

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Examine the Network Subsystem in detail.

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(i)Demonstrate briefly about GSM air interface.(7) (ii)Show the structure of GSM burst.(6) Generalize the process of handover in GSM network(13)

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Describe in detail about (i) Call Reselection and Location area Update (7) (ii) The Mobile-Terminated Call(6)

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Classify the GPRS network elements.(13) (i) Discuss about GPRS state model(7) (ii) Interpret the functions of HLR and VLR in call routing and roaming?(6)

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Describe the GPRS interfaces.(13) Summarize the Multimedia Messaging Service (MMS) over GPRS.(13) (i)Describe WAP 2.0 in detail. (7) (ii)Examine Small Screen Web Browsing with Network Side Compression.(6) Summarize the Mobility Management Tasks and session management tasks of GPRS.(13) Discuss about how small screen web browsing is done over GPRS and Edge.(13) Explain: (i) The OVSF Code Tree(7) (ii) UMTS channel structure(6) PART-C (i)Summarize how a subscriber is authenticated in the GSM network? Why is an authentication necessary?(15)

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Develop a network with all the advanced features of UMTS, GPRS BTL6 Create and GSM. What are the advantages of the UMTS Radio Network Compared to GSM? 3. Analyze why is it not necessary to change any settings on the BTL4 Analyze mobile device for GPRS when roaming abroad? 4. Analyze Which options does the Node-B have to schedule the BTL4 Analyze uplink traffic of different E-DCH mobile devices in a cell? UNIT IV - 4G NETWORKS LTE – Network Architecture and Interfaces – FDD Air Interface and Radio Networks – Scheduling – Mobility Management and Power Optimization – LTE Security Architecture – Interconnection with UMTS and GSM – LTE Advanced (3GPPP Release 10) - 4G Networks and Composite Radio Environment – Protocol Boosters – Hybrid 4G Wireless Networks Protocols – Green Wireless Networks – Physical Layer and Multiple Access – Channel Modeling for 4G – Introduction to 5G PART – A 1. 2.

What is a resource block (RB)? Examine how does a mobile device get access to the physical uplink shared channel?

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Evaluate how mobility is controlled in RRC Idle state?

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Discover the different options for the backhaul connection of the eNode-B.

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Define CS fallback.

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Classify the Hybrid 4G Wireless Networks Protocols. Develop a solution for interconnecting LTE network with legacy core network.

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Give the purpose of DRX in RRC Connected state.

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Analyze Internet-based voice services and network operator-based voice services.

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10. Distinguish between an S1 and an X2 handover 11. Distinguish Attach and Default Bearer Activation 12. List the activity states of mobility management:

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Differentiate ARQ and HARQ? List the physical parameters for LTE subcarriers. Design a schematic model of Mobile Adhoc Network. Give the importance of Composite radio. Tabulate the channel modeling schemes for 4G. Identify the issues that are addressed by green wireless networks.

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Interpret protocol boosters

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Show the differences between the tasks for the MME and the tasks of the Serving Gateway. PART – B . Discuss about LTE Network Architecture and Interfaces(13)

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(i)Illustrate LTE international roaming with home routing (7) (ii) Demonstrate MIMO Transmission (6) Demonstrate how OFDMA used for Downlink transmission .(13)

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Integrate s1 and x2 handover scenarios. Why x2 handover is not suitable in all situations?(13) Summarize: (i) The protocol for one-hop direct transmission (7) (ii) Protocols for two-hop direct-transmission mode(6)

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Discuss about the scheduling schemes in LTE.(13) (i) Describe about Composite Radio Environment .(8) (ii) Examine Protocol Boosters in detail(5) Describe the Mobility Management and Power Optimization.(13) Compare and contrast the MIMO Channels in Micro- and PicoCell Environment(13) Write short notes on: (i) LTE Security Architecture.(7) (ii) Mobility Management in Idle State.(6) Explain Interconnection of LTE with UMTS and GSM. (13)

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(i) Express the idea of Voice and SMS over LTE.(7) (ii) Discuss about Backhaul Considerations(6) Explain Green Wireless Networks in detail.(13)

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Point out the factors that are required for Modeling the channel for BTL4 4G (13) PART-C

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Analyze how the problem of BS failure can be solved? How the communication is carried out after BS failure. Assess the salient features of 4G and 5G. Create the Hybrid 4G wireless network protocols that can be suitable for 4G and 5G. Evaluate the various releases of LTE-Advanced. Which one is better in of latency reduction?

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UNIT V SOFTWARE DEFINED NETWORKS

Introduction – Centralized and Distributed Control and Data Planes – Open Flow – SDN Controllers – General Concepts – VLANs – NVGRE – Open Flow – Network Overlays – Types – Virtualization – Data Plane – I/O – Design of SDN Framework 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 1. 2.

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Define SDN. Give the benefits of open flow based SDN. Differentiate data plane and control plane. Illustrate he schematic diagram of SDN. Define SDN data path. Assess the advantages of VLANs. What is Inter-Switch Link? key roles played by SDN controllers. Express the idea of Software-defined mobile networking Define network overlays. Illustrate the procedure of removing an individual VLAN. List the different configurations of VLAN hip. Point out the deployment considerations of VLAN. Analyze the types of network overlays. Describe NVGRE. Create a VLAN by default. Describe the features of virtualization. Differentiate access ports and trunk ports. Design a SDN framework by using SDN controllers. Differentiate between centralized and distributed data planes. PART – B Explain the Software-Defined Network Architecture.(13) i) Discuss about the OpenFlow-Based Software-Defined Networks.(6) ii) Give the structure of hybrid control environment for a transport network that includes Open Flow control.(7) Compare and contrast the central and distributed dataplanes.(13) Summarize the creation and deletion of VLANs. (13) (i) List and explain the components of openflow controller.(8) (ii) Write short notes on SDN controllers(5) (i) Illustrate the Idealized controller framework (7) (ii) Examine DN Control to Data-Plane Interface (.(6)

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Demonstrate the centralized and distributed control of SDN.(13)

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Describe in detail about the SDN framework.(13) Examine the network overlays in detail.

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Generalize the functions of (i) Frame Tagging Protocols (7) (ii) VLAN Ports. (6) (i)Identify the properties of mobile payment system.(7) (ii) Describe about mobile payment solutions(6) Discuss about t h e NVGRE framework in detail.(13) (i) Analyze how the tunnels terminated at the vSwitch for a multitier network. (7) (ii) What do you understand by layer2 overlays? (6) Analyze the types of network overlays.(13) PART-C

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(i)Assess the special features required to design a Software Defined Network. (ii)Compare centralized and distributed data planes. Analyze the principle functions of virtualization and explain the NVGRE overlay networks that enabling network scalability for a cloud infrastructure.(15) Evaluate the overlay tunnels terminated at the vSwitch for a multitier network and Overlay tunnels terminated at the vSwitch for a single tier network.(15) Design a VLAN by default and static methods.

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