EEE 3 bluetooth

1. Why is Bluetooth called a cable replacement technology?
2. Give a generic description of Bluetooth?
3. Why can Bluetooth equipment integrate easily in TCP/IP network?
4. Is it possible to connect multiple Bluetooth hubs?
5. What is FCC and how does it relate to Bluetooth?
6. Under what frequency range does Bluetooth work?
7. Do Bluetooth devices need line of sight to connect to one another?
8. Which technology is used in Bluetooth for avoiding interference?
9. What is Airport?
10. What is Piconet?
11. What is FEC in Bluetooth?
12. Which method is primarily used for Voice transfer?
13. What is the frequency range used for Bluetooth in Europe and United States?
14. List some Technology characteristic of Bluetooth?
15. Which company originally conceived and developed Bluetooth?
16. How does Bluetooth use frequency hopping for security?
17. What is a Bluetooth dongle?
18. What are the other (competing or not) wireless technologies?
19. Which Bluetooth version uses adaptive frequency hopping? Why?
20. How many SCO links are there in a piconet?
21. what is the total number of masters and slaves in a piconet?
22. Which method is used for Data transfer?
23. What is the frequency range used for Bluetooth in Japan?
24. What is the strength of the signal transmitted by powerful cell phones?
25. What is RJ-45 and full name of RJ-45?
26. What is LDAP? Where all can it be used
27. Difference between TCP and UDP
28. What is 802.11b, Bluetooth
29. What types of routing are possible in a wireless network
30. How does traceroute work
31. What are the different types of routing possible at layer 3
32. Explain TCP connection establishment and tear down
33. What is ICMP, ARP, Multicast, Broadcast
34. When are packets passed from TCP layer to application layer? What if some IP packets are lost
35. Describe TCP flow control
36. Explain DNS, IP address allocation
37. What is IP Spoofing? What do hackers do with it
38. What is DOS attack
39. Explain SSL
40. How can you keep a TCP connection from tearing down when no data will be sent for a long time?

EEE 2 Microprocessors

1. What are the flags in 8086? - In 8086 Carry flag, Parity flag, Auxiliary carry flag, Zero flag, Overflow flag, Trace flag, Interrupt flag, Direction flag, and Sign flag.
2. What are the various interrupts in 8086? - Maskable interrupts, Non-Maskable interrupts.
3. What is meant by Maskable interrupts? - An interrupt that can be turned off by the programmer is known as Maskable interrupt.
4. What is Non-Maskable interrupts? - An interrupt which can be never be turned off (ie.disabled) is known as Non-Maskable interrupt.
5. Which interrupts are generally used for critical events? - Non-Maskable interrupts are used in critical events. Such as Power failure, Emergency, Shut off etc.,
6. Give examples for Maskable interrupts? - RST 7.5, RST6.5, RST5.5 are Maskable interrupts
7. Give example for Non-Maskable interrupts? - Trap is known as Non-Maskable interrupts, which is used in emergency condition.
8. What is the Maximum clock frequency in 8086? - 5 Mhz is the Maximum clock frequency in 8086.
9. What are the various segment registers in 8086? - Code, Data, Stack, Extra Segment registers in 8086.
10. Which Stack is used in 8086? - FIFO (First In First Out) stack is used in 8086.In this type of Stack the first stored information is retrieved first.
11. What are the address lines for the software interrupts? -

RST 0	0000 H
RST1	0008 H
RST2	0010 H
RST3	0018 H
RST4	0020 H
RST5	0028 H
RST6	0030 H
RST7	0038 H

1. What is SIM and RIM instructions? - SIM is Set Interrupt Mask. Used to mask the hardware interrupts. RIM is Read Interrupt Mask. Used to check whether the interrupt is Masked or not.
2. Which is the tool used to connect the user and the computer? - Interpreter is the tool used to connect the user and the tool.
3. What is the position of the Stack Pointer after the PUSH instruction? - The address line is 02 less than the earlier value.
4. What is the position of the Stack Pointer after the POP instruction? - The address line is 02 greater than the earlier value.
5. Logic calculations are done in which type of registers? - Accumulator is the register in which Arithmetic and Logic calculations are done.
6. What are the different functional units in 8086? - Bus Interface Unit and Execution unit, are the two different functional units in 8086.
7. Give examples for Micro controller? - Z80, Intel MSC51 &96, Motorola are the best examples of Microcontroller.
8. What is meant by cross-compiler? - A program runs on one machine and executes on another is called as cross-compiler.
9. What are the address lines for the hardware interrupts? -

RST 7.5	003C H
RST 6.5	0034 H
RST 5.5	002C H
TRAP	0024 H

1. Which Segment is used to store interrupt and subroutine return address registers? - Stack Segment in segment register is used to store interrupt and subroutine return address registers.
2. Which Flags can be set or reset by the programmer and also used to control the operation of the processor? - Trace Flag, Interrupt Flag, Direction Flag.
3. What does EU do? - Execution Unit receives program instruction codes and data from BIU, executes these instructions and store the result in general registers.
4. Which microprocessor accepts the program written for 8086 without any changes? - 8088 is that processor.
5. What is the difference between 8086 and 8088? - The BIU in 8088 is 8-bit data bus & 16- bit in 8086.Instruction queue is 4 byte long in 8088and 6 byte in 8086.

EEE 1 digital

1.    What is meant by D-FF?
2.    What is the basic difference between Latches and Flip flops?
3.    What is a multiplexer?
4.    How can you convert an SR Flip-flop to a JK Flip-flop?
5.    How can you convert an JK Flip-flop to a D Flip-flop?
6.    What is Race-around problem? How can you rectify it?
7.    Which semiconductor device is used as a voltage regulator and why?
8.    What do you mean by an ideal voltage source?
9.    What do you mean by zener breakdown and avalanche breakdown?
10.    What are the different types of filters?
11.    What is the need of filtering ideal response of filters and actual response of filters?
12.    What is sampling theorem?
13.    What is impulse response?
14.    Explain the advantages and disadvantages of FIR filters compared to IIR counterparts.
15.    What is CMRR? Explain briefly.
16.    What do you mean by half-duplex and full-duplex communication? Explain briefly.
17.    Which range of signals are used for terrestrial transmission?
18.    What is the need for modulation?
19.    Which type of modulation is used in TV transmission?
20.    Why we use vestigial side band (VSB-C3F) transmission for picture?
21.    When transmitting digital signals is it necessary to transmit some harmonics in addition to fundamental frequency?
22.    For asynchronous transmission, is it necessary to supply some synchronizing pulses additionally or to supply or to supply start and stop bit?
23.    BPFSK is more efficient than BFSK in presence of noise. Why?
24.    What is meant by pre-emphasis and de-emphasis?
25.    What do you mean by 3 dB cutoff frequency? Why is it 3 dB, not 1 dB?
26.    What do you mean by ASCII, EBCDIC?