EXERCISE STest: (TIME LIMIT 3 min)

A cargo is adrift in a storm. Its communications have been seriously damaged except from a rudimentary Morse system model Alpha, which produces errors of the following kinds:

- delete

- insertion of 0

- insertion of 1

- switch (0 for 1 or 1 for 0)

In the nearest harbour, the first signals of the ship are received. They easily acknowledge that it's a model Alpha, well-known by its four kinds of errors of the same frequency.

EJEMPLO 1: In the harbour, the following signal is received:

00100011 Which will be with more probability the original signal?:

A: 00101100

B: 000101000

C: 000111101

D: 110000111100

E: 001010011

The solution in this case is E because it requires less errors to arrive to the original one (the most similar one).
 

PROBLEM 1) The next signal is:

0001010110

Which will be with more probability the original signal?:

A: 101001011111

B: 01111001

C: 0001

D: 000101010

E: 000010
 

PROBLEM 2) The next signal is:

000001011100

Which will be with more probability the original signal?:

A: 0100100000

B: 11110100

C: 000100011000011000

D: 1000010100100

E: 010001100010100
 

PROBLEM 3) The next signal is:

11101001101110

¿Cuál será con mayor probabilidad la señal original?:

A: 001111110010110

B: 0001111100011110110

C: 0000000000

D: 1100011001110

E: 110110011
 

PROBLEM 4) The next signal is:

1100010101000011

Which will be with more probability the original signal?:

A: 11100001010100011

B: 1101000011

C: 01101000110001001

D: 000100011010111111

E: 11111001
 

PROBLEM 5) The next signal is:

11100011011000010000 Which will be with more probability the original signal?:

A: 010110101000010101100101

B: 10001010101100000000

C: 001101110000110110001000

D: 10010000010001101001000

E: 10010010011000100001011
 

PROBLEM 6) The next signal is:

1011001110111110101000

Which will be with more probability the original signal?:

A: 001001111111001010

B: 110110001100111111101011011

C: 1110111110101101110

D: 0101111100110100010110010

E: 0001100100011001
 

PROBLEM 7) The next signal is:

100111100100111110010111 Which will be with more probability the original signal?:

A: 0010000100010101001010011101

B: 1110111001000111110101110

C: 0110111011011001110111

D: 10001011000111010111011101011

E: 10000011000010010100
 

PROBLEM 8) The last signal (before the ship sank) was:

10111111101011010000011001

Which will be with more probability the original signal?:

A: 110111111100110

B: 100011110101100010101101

C: 000110111100000001101000100

D: 101011100101011011

E: 1101100011101111010011