21. Boundary-scan method takes lesser time on test pattern generation.
A. true
B. false
22. The disadvantage of the boundary-scan method is that the fault coverage is less.
A. true
B. false
23. Which occupies a lesser area?
A. lssd
B. boundary scan test
C. serial scan
D. partial scan
24. The partial scan approach scan
A. all input node faults
B. all output node faults
C. faults not detected by designer functional vector
D. all faults
25. In scan/set method __________ is used to implement a scan path.
A. serial registers
B. storage elements
C. parallel registers
D. separate register
26. Built-in self-test aims to
A. reduce test pattern generation cost
B. reduce the volume of test data
C. reduce test time
D. all of the mentioned
27. In the data compression technique, the comparison is done on
A. test response
B. entire test data
C. data inputs
D. output sequences
Answer: A
In the data compression technique, the comparison is made on compacted test responses instead of entire test data.
28. Signature analysis performs
A. addition
B. multiplication
C. polynomial division
D. amplifies
29. The signature analysis method can be represented mathematically as
A. R(x) = P(x) * C(x)
B. R(x) = P(x) / C(x)
C. R(x) = C(x) / P(x)
D. R(x) = C(x) * P(x)
30. Transition counting does the count of transition only in one specific direction at a time.
A. true
B. false