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pass? Correct answer is missing…give full credit to any.
a. 5
b. 9
c. A
d. b (which is the same as B)
e. C
Page 21 of 25 As shown below, the following circuit will cycle
outputs in order. through all the 36.On which of the labeled wires should an inverter be placed to transform
into a square wave with a 75% duty cycle?
a.
b.
c.
d.
e. Only on 5.
On 4 and 6.
On 2 and 4.
On 2 and 5.
On 2 and 6. Page 22 of 25 37.Which of the following is a correct Caesarshift encoding of the word
EXAM?
a.
b.
c.
d.
e. IBEP
IBEQ
IBER
ITEP
ITEQ 38.If you encode the word CA by XORing with an 8 bit key to produce the
coded word 9C, then what was the key used?
a. AD
b. 96
c. 7 9
d. 67
e. 5 6
Consider the pseudorandom sequence of 3bit numbers is defined by
[
39.If a.
b.
c.
d.
e. ( [ ]… be before repeating? )
, how long will the sequence 3 bits
6 bits
9 bits
12 bits
24 bits 40.What is [
a. 0
b. 1
c. 2
d. 3
e. 4 ? Page 23 of 25 Fact Sheet 1:
OR AND ̅ ̅ ̅
(
( )
)
̅̅̅̅̅̅̅̅ ( ) ( ̅̅ ̅ ()
( ( ) ()
() ) ( )(
)
(
)(
̅̅̅̅̅̅
̅̅
(
)
(̅
) Identity Name
identity
null
idempotence
complementary
involution
(Double Bubble)
commutative
associative
) distributive
DeMorgan
absorption
nameless () ) Page 24 of 25 Fact Sheet 2:
a2 a1 a0
a6 a5 a4 a3 ASCII Table Digit
1
2
3
4
5 Code
00011
00101
00110
01001
01010 Digit
6
7
8
9
0 Code
01100
10001
10010
10100
11000 POSTNET digit assignments Page 25 of 25...
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 Fall '08
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