Placement Papers - Cisco

Cisco Systems
CISCO PAPER - APTITUDE
Posted by :
Saparna
(61)
ome Sample questions (m.tech.) tech.--24, apti.--20

1. On cmos power( formula- P=CV*Vf

2. Lowest noise margin in which logic family--
a) TTL  b) CMOS  c)  biCMOS  d)  all have same

3. If CMOS has tr(rise time)=tf.find Wp/Wn. given beta(n)=2*beta(p)

4. gm of a transistor is proportional to
a)Ic b)Vt c)1/Vt d)none

5. If A and B are given in 2\'s complement find A-B in decimal.

6. Set up time,hold time ,clock to Q delay time (very important)

7. .3 questions on opamp (transfer function)(2 marks each)

8. 2 questions on sequence detector (2 marks each)

9. Logic function boolean expressions(true/false) (3 question-1 mark each) probabily all false

10. In I/O mapped how do you represent memory(1 mark)  

11. The design of FSM(finite state machine) will--
a) increase time of design
b) increase delay
c) increase power
d) all of the above

12. K-map minimization

13. Phase locked loop(PLL) 1 question sachin