SRM University 2007 B.Tech Information Technology IT200 - TELECOMMUNICATION SYSTEMS - Question Paper

16.What are the 3 components of a communication system?
17.Why do digital voice signals give Quieter Communication?
18.What are the differences ranging from NRZ-L and NRI?
19.What devices are used in analog central exchanges to couple analog signals?
20.What is Data Terminal Equipment(DTE)?
21.What is Data Commuication Equipment(DCE)?
22.What are the differences ranging from Synchronous and Asynchronous Transmission?
23.Define Baud Rate.
24.What are the differenced ranging from discrete ARQ and Continuous ARQ?


Ten Marks:
1.Explain in detail about communication signals & protocols.
2. discuss about analog signals & digital signals in the local loop.
3. discuss about (a) conversion of voice to digital signals.
(b) conversion of PSTN to digital network.
4. discuss in detail about digital data coding techniques.
5.Explain about baud rate & modulation of carrier.
6. discuss in detail asynchronous vs. synchronous transmission .
7. discuss about asynchronous transmission fault checking & synchronous fault detection & correction.

Unit -IV

Two Marks

1.What is BRI & PRI?
2.What are called Reference points?
3.What isTerminal Equipment Identifier( TEI),SPID,SAPI?
4.Define ADSL.What services are handled by ADSL?
5.What is Link Access Procedure(LAPD) on the D-channel?
6.What are the differences ranging from DSL and ADSL?
7.What are the services given by narrowband ISDN & Broadband ISDN,ADSL?
8.What is LAPD and elaborate the frame kinds in LAPD?
9.What is Network Termnation1(NT1),NT2 &NT12?
10.What is Terminal Equipment 1(TE1) & TE2?
11.What is Terminal Adapter?
12.What is a peer-to-peer network?
13.What is client/server network?
14.What is a Network Interface Card?
15.What are the services given by Transport, Network, Application, Session& Data Link Layer?
16.What is Network Operating System(NOS)?
17.What is Carrier Sense Multiple Access/Collision Detection(CSMA/CD)?
18.What is Application Protocol Interface(API)?
19.What is a MAC Address?
20.Name the layers of OSI model.
21.What is a Zero-slot LAN?
22.What is a Dos-based LAN?
23.What are the 2 sublayers of Link Layer?
24.What are the differences ranging from an OS and NOS?
25.Which layer of the OSI model contains the API?
26.Define Ethernet.

Ten Marks:

1.Explain how a PSTN is converted into a Digital Network?
2.Explain primary rate ISDN and Broad Band ISDN?
3.Explain BRI interfaces, Reference points and 2B1Q Line coding?
4.Explain the link access procedure on the D-channel in ISDN?
5.Explain the protocol architecture of ISDN?
6.What are the services and applications of ISDN?
7.Explain how S/T Bus data to U Reference point requirements?
8.Explain the functions of every layer in OSI Model?

Unit-V

Two Marks

1.Explain WAN and its uses?
2.Explain VAN and its uses?
3.What is a PDN?
4.Explain Asynchronous Transfer Mode.(ATM)
5.Define Committed info Rate.
6.What are the differences ranging from Permanent Virtual Circuit and Switched Virtual Circuit?
7.What is a virtual circuit?
8.Explain PDN,PAD,LAPB.
9.Explain Bit Oriented and Connectionless protocol.
10.Explain Frame Relay.
11.What is MTSO?
12.What is Base Station Controller(BSC)?
13.Differentiate TDMA, CDMA, FDMA.
14.Explain Frame Relay and Packet Assembler and Disassembler.
15.What is Data Link Connection Identifier(DLCI)?

Ten Marks

1.Compare the functions of X.25 to frame relay?
2.Explain the functions of the layers of X.25 protocol?
3.Explain how routing is done in a packet switched network?
4.Explain the functions of Packet assembler / disassembler?
5.Explain ATM and Voice-over-ATM?
6.What is IP Address? How will you generate IP Address? provide an Example?
7.Explain TCP/IP Protocol?
8.Explain FTP,SMTP,TELNET and ARP?

Earning:   Approval pending.