D:-1.14 KQ
Correct Answer:- Option-B
Question38:-A program counter register in a micro controller is used to
A:-index stack memory
B:-index FIFO for accessing a data
C:-point to the next instruction that execute in a code sequence
D:-none of them
Correct Answer:- Option-C
Question39:-In . a physical contact is required to be established with the actuator of it, to make/break a
connection.
A:-proximity switch
B:-limit switch
C:-relay switch
D:-all the above
Correct Answer:- Option-B
Question40:-(i} CDMA uses spread spectrum technology
GSM stands for Global System for Mobile communications
(11) GSM uses TDMA
A:-(i} and (i} are correct

Correct Answer:- Option-D
Question41:-How many number of duplex mode links are possible in a mesh topology?
‏اميم‎
‎B:-'n{n-1)"
‎G- {n{n-1)}/2"
0: 072/2“
Correct Answer:- Option-C
Question42:-Data is being ೧೩೧೦6 17 8 51672 in which one data element is encoded as one signal element (r = 1). If the bit
rate is 50 kbps, calculate the average value of baud rate assuming case factor ¢ = 1/2.
A:-25 kbaud
B:-50 kbaud
C:-100 kbaud
D:-none of these
Correct Answer:- Option-A
Question43:-Why is a trailer often added to the end of a frame in the data link layer?
A:-Flow control
B:-Error control
C:-Addressing
D:-Access control
Correct Answer:- Option-B
Question44:-How many bytes are used in an Ethemet physical address?
‏6-ھ‎
‎B:-4
‎6-2
‎0-8
‎Correct Answer:- Option-A
Question45:-Elimination-Yield Non-Preemptive Multiple Access mechanism (EY-NPMA)} is associated with which of the
following technologies?
ക്വ
B:-HIPERLAN
C:-ATM
D:-TOKEN RING
Correct Answer:- Option-B
Question46:-Which modulation mechanism 15 used in bluetooth technology to transform bits to a signal?
A:-ASK
B:-PSK
C:-QPSK
D:-GFSK