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                                         SYLLABUS FOR THE POST OF DEPUTY MANAGER II- ELCOT
                                               Paper - I - (DEGREE STANDARAD) Code No.221
                                                          UNIT I : BASIC ELECTRONICS
Diode characteristics - PN Junction diode - Zener diode- Tunnel diode- Light emitting diode,
Bipolar Junction transistor- Field Effect Transistors, Power switching devices - SCRs, Power
MOSFETS - Basics of ICs - MOS and CMOS, Basics of Opto-electronics.
Number Systems- Data representation- Boolean algebra- Karnaguh map, Combinational logic
Circuits- Half adder- Full adder- Digital comparator- Multiplexer- De-multiplexer, Sequential
Circuits- Flip flops- R-S, J-K, D and T flip-flops, Counters and registers, A/D and D/A converters,
Semiconductor memories.
Processor design- Control unit - Memory organization- I/O System, Microprocessors -
Architecture and instruction set of Microprocessors 8085 and 8086, Microcontroller – 8051,
Assembly language Programming.

UNIT II : NETWORKS
OSI reference model - layers and duties- TCP/IP reference model – layers and duties. Physical
layer- general description, characteristics, signaling,media types, topologies,
Modulation,Frequency spectrum,Multiplexing, Encoding techniques, DTE, DCE, examples of
physical layer (RS232C, ISDN, ATM,SONET)
Logical link control Functions- Framing, Flow control , Error control: CRC, LLC protocols:-
HDLC, P to P. Medium access layer:- Random access, Controlled access, Channelization, IEEE
standards:- 802.3, 802.4 802.5 and 802.11., Interconnection devices- Repeaters, Hubs,
Routers/switches- Gateways and VLAN.
Circuit switching, packet switching, message switching, Internet protocols- IPV4- Packet formatIP addressing-Subnetting-Classless interdomain routing(CIDR), IPV6, ARP, RARP, ICMP,
IGMP, VPN. Network Routing Algorithms: - Distance vector routing-RIP,Link State
Routing(OSPF)-Path Vector Routing (BGP), Dijikstra‘s , Bellaman Ford, Congestion control
algorithms.

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