Computer Science 9608/11 Oct/Nov 2015 past paper

Grade thresholds for 9608/11 Oct/Nov 2015

The minimum raw marks Cambridge set for each grade on this component (out of 75). Thresholds change every session and variant, so always compare your score with the paper you actually sat.

Topics in this paper

Which syllabus chapters 9608/11 Oct/Nov 2015 tested, by marks. Each chapter links to every past-paper question on it.

Questions in 9608/11 Oct/Nov 2015

1. Question 1Communication · 10 marks

   (a) Explain the term bit streaming. (b) A person watches a film streamed from a website on a tablet computer. (i) Give two benefits of using bit streaming for this purpose. 1 2 (ii) State two potential problems of using …

2. Question 2Processor Fundamentals · 7 marks

   (a) Registers Processor ALU Control unit System clock Main memory …

3. Question 3Communication · 7 marks

   (a) The table shows four statements about IP addresses. Tick (✓) to show which of the statements are true. Statement True (✓) The IP address consists of any number of digits separated by single dots (.) Each number in an …

4. Question 4Ethics and Ownership · 6 marks

   Paul works part-time for a large software company. The company sells security software to a number of banks. He also runs his own software company that produces and sells computer games. Six statements about computer ethics are shown below. Draw …

5. Question 5Hardware · 7 marks

   A computer system in a control room is used to monitor earthquake activity. An earthquake zone has a number of sensors to detect seismic activity. The system detects when seismic activity is greater than 3 on the Richter Scale. Whenever …

6. Question 6Communication · 4 marks

   A company operates a chemical plant, which has a number of processes. Local computers monitor these processes and collect data. The computers transfer these data to a central computer 50 km away. A telecommunications company (telco) provides cables. Engineers at …

7. Question 7Communication · 10 marks

   (a) (i) Describe what is meant by a client-server model of networked computers. (ii) Give two benefits of using the client-server model. …

8. Question 8Information representation · 9 marks

   (a) Six computer graphics terms and seven descriptions are shown below. Draw a line to link each term to its correct description. Term Description Bitmap graphic Image file header Image resolution Pixel Screen resolution Vector graphic Measured in dots per …

9. Question 9Security, privacy and data integrity · 6 marks

   (a) Give a brief description of each of the following terms: Validation Verification (b) Data are to be transferred between two devices. Parity checks are carried out on the data. Explain what is meant by a parity check. Give an …

10. Question 10Security, privacy and data integrity · 4 marks

    (a) Explain the term computer virus. (b) A virus checker has been installed on a PC. Give two examples of when a virus checker should perform a check. 1 2

11. Question 11System Software · 5 marks

    A game program is written which can be either interpreted or compiled. The table below shows five statements about the use of interpreters and compilers. Tick (✓) to show whether the statement refers to an interpreter or to a compiler. …

Other Computer Science papers from Oct/Nov 2015

• 9608/12 Theory fundamentals
• 9608/13 Theory fundamentals
• 9608/21 Fundamental problem-solving & programming
• 9608/22 Fundamental problem-solving & programming
• 9608/23 Fundamental problem-solving & programming
• 9608/31 Advanced theory
• 9608/32 Advanced theory
• 9608/33 Advanced theory
• 9608/41 Further problem-solving & programming
• 9608/42 Further problem-solving & programming
• 9608/43 Further problem-solving & programming