GCSE Computer Science Unit 1 4341-01
WJEC 2014 Online Exam Review GCSE Computer Science Unit 1 4341-01 All Candidates' performance across questions
Question Title 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
N 364 365 363 361 359 334 326 314 355 357 363 327 344 357 345 336
Mean 3.3 4.1 2.7 3.4 2.6 2.3 0.8 1.1 2 1.1 5.4 0.6 1 3.9 0.9 2
SD 0.8 1.4 1.8 1.8 1.6 1.5 0.8 1.1 1.2 1.4 1.8 0.7 0.8 2.7 0.9 1.8
Max Mark 4 6 8 7 8 4 4 5 4 6 7 2 2 8 3 12
FF 83.2 67.7 33.6 48.9 33 58.4 19.4 22 48.9 18.5 77.8 29.4 50.4 48.2 28.4 16.9
Attempt % 99.7 100 99.5 98.9 98.4 91.5 89.3 86 97.3 97.8 99.5 89.6 94.3 97.8 94.5 92
Question
GCSE Computer Science Unit 1 4341-01 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
16.9
28.4
48.2 50.4
29.4
77.8
18.5
48.9
22 19.4
58.4
33
48.9
33.6 0
10
20
30
67.7 40
50
60
Facility Factor %
83.2 70
80
90
100
4
10
14
6 4. There are many different types of network topology, of which Bus and Star are types. (a) Draw a diagram of a Star topology network clearly labelling all important hardware. [3]
© WJEC CBAC Ltd.
(4341-01)
Examiner only
12 Examiner only
10. Computer programs can contain different types of error. (a) Giving an example, state what is meant by a syntax error.
[2]
(b) Giving an example, state what is meant by a run time error.
[2]
(c) Giving an example, state what is meant by a logical error.
© WJEC CBAC Ltd.
(4341-01)
[2]
15 14. (a) Convert the hexadecimal number 3C to binary.
[2]
(b) Convert the hexadecimal number 3C to denary.
[2]
(c) Convert the binary number 11110111 to hexadecimal.
[2]
(d) Explain why hexadecimal numbers are often used to represent binary numbers.
[2]
© WJEC CBAC Ltd.
(4341-01)
Turn over.
Examiner only
Question Title 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
N 364 365 363 361 359 334 326 314 355 357 363 327 344 357 345 336
Mean 3.3 4.1 2.7 3.4 2.6 2.3 0.8 1.1 2 1.1 5.4 0.6 1 3.9 0.9 2
SD 0.8 1.4 1.8 1.8 1.6 1.5 0.8 1.1 1.2 1.4 1.8 0.7 0.8 2.7 0.9 1.8
Max Mark 4 6 8 7 8 4 4 5 4 6 7 2 2 8 3 12
FF 83.2 67.7 33.6 48.9 33 58.4 19.4 22 48.9 18.5 77.8 29.4 50.4 48.2 28.4 16.9
Attempt % 99.7 100 99.5 98.9 98.4 91.5 89.3 86 97.3 97.8 99.5 89.6 94.3 97.8 94.5 92
Question
GCSE Computer Science Unit 1 4341-01 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
16.9
28.4
48.2 50.4
29.4
77.8
18.5
48.9
22 19.4
58.4
33
48.9
33.6 0
10
20
30
67.7 40
50
60
Facility Factor %
83.2 70
80
90
100
4
10
14
6 4. There are many different types of network topology, of which Bus and Star are types. (a) Draw a diagram of a Star topology network clearly labelling all important hardware. [3]
© WJEC CBAC Ltd.
(4341-01)
Examiner only
12 Examiner only
10. Computer programs can contain different types of error. (a) Giving an example, state what is meant by a syntax error.
[2]
(b) Giving an example, state what is meant by a run time error.
[2]
(c) Giving an example, state what is meant by a logical error.
© WJEC CBAC Ltd.
(4341-01)
[2]
15 14. (a) Convert the hexadecimal number 3C to binary.
[2]
(b) Convert the hexadecimal number 3C to denary.
[2]
(c) Convert the binary number 11110111 to hexadecimal.
[2]
(d) Explain why hexadecimal numbers are often used to represent binary numbers.
[2]
© WJEC CBAC Ltd.
(4341-01)
Turn over.
Examiner only
