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A 2.3.2 Transmission Media
Data has to travel along something. That something is the transmission medium, and the syllabus names three: fibre optic cable, twisted pair cable and wireless. Each carries a signal in a different way,...
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A 2.3.1 IP Addressing
Every device on a network needs an address so that data can reach it. An IP address is that identifier, and the way it is written, who assigns it and whether it stays the same all differ from one type...
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A 2.1.5 TCP/IP (HL only)
The TCP/IP model describes how data is carried across a network by dividing the job into four layers, each with its own responsibility. Splitting the work this way means each layer can do one thing well...
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A 2.1.4 Network Protocols
A protocol is an agreed set of rules for how data is formatted, sent and understood. Because both ends follow the same rules, devices made by different companies and running different software can still...
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A 2.2.4 Network Segmentation
Network segmentation means dividing one network into smaller parts, called segments, so that traffic and access can be controlled within each part rather than across the whole. It is done for two reasons:...
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B 2.2.3 Worksheet Python Answers
2. Printed: Final Stack: ['A', 'B', 'D'] (Top is 'D') 3. Printed: Final Stack: [] (Empty) 4. Final Stack: [5, 30] (Top is 30) 5. Description: An IndexError: pop from empty list is raised. You cannot pop()...
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A4.2.1 Describe the significance of data cleaning.
Before a machine learning model can learn useful patterns, the data it trains on must be accurate, consistent, and relevant. Raw, real-world data is almost never in that condition. Data cleaning is the...
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Student Access
Giving students access to the IB Computer Science pages is an essential part of your InThinking subscriptions. There are a range of resources for students and you can easily control access to ensure they...
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B 2.2.4 Worksheet Java Answers
Printed: Final Queue: FRONT -> [ "B", "C", "D" ] Printed: Final Queue: [] (Empty) Description: A NoSuchElementException is thrown. You cannot remove() (dequeue) from an empty queue. Final Queue: [] (Empty)...
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B 3.1.3 Worksheet Python
Name: _________________________ Date: _______________ Part 1: Definitions Fill in the blanks to complete the following definitions: Part 2: Code Analysis Study the following Python code snippets and answer...