1.Convert the following binary representation to its equivalent base 10 notation
ID: 3591201 • Letter: 1
Question
1.Convert the following binary representation to its equivalent base 10 notation
010001
19
17
18
20
2.In a 2's complement system what decimal value is represented by 1111 ?
15
-1
-15
7
3.What is the output if the follwing python code was executed ?
X = 4
Y = 5
if (X < Y):
Y = X + 2
elif (X > Y):
X = Y % 2
else:
X = X//Y
print(X," ",Y)
4 6
5 8
4 7
5 7
4.What is the result of the following logical operation ?
10101010
AND 11110000
1001 0000
1010 0000
1100 0000
1010 1111
5. Which negative integer does the following two's complement binary notation represent
NOTE: Space between digits is for readability
110 101
-13
-12
None of the above
-18
6.Suppose we want a program to request an integer (n) repeatedly until it is in the range 0 to 100 inclusive that is we want 0 <= n <= 100. Which of the following is the best input validation loop?
while n > 0 or n > 100:
generate an error message
while n > 0 and n > 100:
generate an error message
while n >= 0 or n >= 100:
generate an error message
while n >= 0 and n >= 100:
generate an error message
7. When searching the following list in the sequential search algorithm which will be found most quickly
11 23 31 44 56 58 61 68 72 88 91 112 133 144 155
44
68
56
31
8. Convert the following binary representation to its equivalent base 10 notation
111.01
7 3/4
6 1/2
7 1/2
7 1/4
9.At most, how many entries in a list of 2000 names will be interrogated when using the binary search algorithm
12
11
10
13
10.
What is the result of the following logical operation ?
1010101
XOR 1101010
011 0111
110 1111
101 1011
011 1111
11.
Which of the following bit patterns represents the decimal value -22 in two's complement notation
NOTE: Space between digits is for readability
101 010
101 101
111 101
101 001
12.What integers are interrograted ( compared to ) in the binary search algorithm when searching for the integer 31 in the list
11 23 31 44 56 58 61 68 72 88 91 112 133 144 155
68 44 11 23
68 44 23 31
72 44 23 31
61 44 23 31
13. What bit pattern is represented by 36.130 in dotted decimal notation ?
00100110.10000110
00100100.10000110
00100110.10000100
00100100.10000010
14. Express the bit pattern 01010111.10001000 in dotted decimal notation
88.142
84.134
76.112
87.136
15. Convert the following base 10 value into binary representation
12 7/8
01101.101
01100.111
01101.011
01100.011
19
17
18
20
Explanation / Answer
1.Convert the following binary representation to its equivalent base 10 notation
010001
Answer: Option b)17
2.In a 2's complement system what decimal value is represented by 1111 ?
Answer: Option b) -1
3) Answer: Option a) 4 6
4.What is the result of the following logical operation ?
10101010
AND 11110000
Answer: Option b) 1010 0000
5. Which negative integer does the following two's complement binary notation represent
NOTE: Space between digits is for readability
110 101
Answer: Option c) None of the above
6) Answer: Option
b)while n > 0 and n > 100:
generate an error message
7. When searching the following list in the sequential search algorithm which will be found most quickly
11 23 31 44 56 58 61 68 72 88 91 112 133 144 155
Answer: Option b) 68
8. Convert the following binary representation to its equivalent base 10 notation
111.01
Answer: Option d) 7 1/4
9.At most, how many entries in a list of 2000 names will be interrogated when using the binary search algorithm
Answer: Option b) 11
10. What is the result of the following logical operation ?
1010101
XOR 1101010
Answer: Option d)011 1111
11.Which of the following bit patterns represents the decimal value -22 in two's complement notation
Answer: Option a) 101 010
12.What integers are interrograted ( compared to ) in the binary search algorithm when searching for the integer 31 in the list
11 23 31 44 56 58 61 68 72 88 91 112 133 144 155
Answer: Option:b) 68 44 23 31
13. What bit pattern is represented by 36.130 in dotted decimal notation ?
Answer: Option:d) 00100100.10000010
14. Express the bit pattern 01010111.10001000 in dotted decimal notation
Answer: Option:d) 87.136
15. Convert the following base 10 value into binary representation
12 7/8
Answer: Option:b) 01100.111
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