The document is a mark scheme for a GCE Advanced Level computing exam from November 2004. It provides the requirements for awarding marks on the exam and instructions to examiners. Key points include that alternative correct answers must be awarded marks, mark schemes must be read with the question paper and exam report, and grade thresholds for the exam are provided requiring minimum marks of 60, 54, and 30 for grades A, B, and E respectively. The thresholds for grades C and D are normally calculated by dividing the range between B and E into three parts.