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Communication exam tips
Study Communication with curriculum-aligned Exam Tips resources, practice links, and exam-focused support.
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exam tips
Resource type
Topic
Communication
AqaA LevelComputer ScienceFundamentals of communication and networking
Exam tips
Link every advantage to a reason
When asked for an advantage of serial transmission, state both the advantage and why it matters, such as fewer lines reducing cost or avoiding skew.
Examiners commonly award separate marks for identifying an advantage and explaining its effect.
State the units and relationship precisely
When comparing baud rate and bit rate, identify what each one counts and include the relevant per-second unit. For bandwidth questions, state that bit rate is directly proportional to bandwidth.
Precise definitions distinguish the two easily confused terms and directly address the required relationship.
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