<p>This is an end of topic test with mark scheme for AQA GCSE Computer Science (9–1) specification 2020 (First set of exams 2022).</p> <p>The test includes factual recall questions, as well as all levels of difficulty SQL questions. This covers all of 3.7. It includes join SQL commands (the hardest part of 3.7 and a top level 9 question)</p> <p>It comes with mark scheme. The test is 51 marks and should be completed in 50 minutes maximum although I would suggest top students should aim for 40 minutes completion time.</p>

<p>This is a GCSE maths paper consisting of only level 8-9 hard questions.</p> <p>Since all questions are level 8-9 questions and are the hardest style of question you can expect on a GCSE paper, a score of around 60% is considered admirable on a paper like this.</p> <p>Useful to stretch students who are aiming for an 8 or a 9 but do not want to waste time with easy beginning questions on a paper.</p> <p>Comes with comprehensive answer document</p>

<p>Comprehensive notes on all of communication and networking, for the AQA syllabus. Includes notes on:</p> <p><strong>4.9.1 Communication</strong></p> <ul> <li>Communication Basics</li> <li>Serial and Parallel Data Transmission</li> <li>The Advantages of Serial over Parallel</li> <li>Synchronous and Asynchronous data transmission</li> </ul> <p><strong>4.9.2 Networking</strong></p> <ul> <li>Network Topology</li> <li>Physical Network Topology</li> <li>Physical Star Network Topology</li> <li>Physical Bus Topology</li> <li>Logical Network Topology</li> <li>Mixing Topologies</li> <li>Types of Networking Between Hosts</li> <li>Client-Server Networking</li> <li>Peer-to-Peer Networking</li> <li>Wireless networking</li> <li>Wifi</li> <li>Carrier Sense Multiple Access Collision Avoidance</li> </ul> <p><strong>4.9.3 The Internet</strong></p> <ul> <li>The Structure of the Internet</li> <li>Internet Service Providers</li> <li>Packet Switching and Routers</li> <li>The Primary Components of a Packet</li> <li>Routers and Gateways</li> <li>Uniform Resource Locators</li> <li>Domain Names</li> <li>Fully Qualified Domain Names</li> <li>IP Addresses</li> <li>The Domain Name Server (DNS) System</li> <li>Internet Security</li> <li>Firewalls</li> <li>Packet Filtering</li> <li>Stateful Inspection</li> <li>Proxy Server</li> <li>Symmetric &amp; Asymmetric Encryption</li> <li>Digital Certificates &amp; Digital Signatures</li> <li>Worms, Trojans &amp; Viruses</li> <li>Preventing Malware</li> </ul> <p><strong>4.9.4 The Transmission Control Protocol &amp; Internet</strong></p> <ul> <li>Protocol (TCP/IP)</li> <li>TCP / IP</li> <li>Application Layer</li> <li>Transport Layer</li> <li>Network Layer</li> <li>Link Layer</li> <li>Socket Addresses</li> <li>Well-Known Ports</li> <li>The Structure of IP Addresses</li> <li>IP Address Standards</li> <li>IPv4</li> <li>IPv6</li> <li>Public and Private IP Addresses</li> <li>Dynamic Host Configuration Protocol (DHCP)</li> <li>Network Address Translation (NAT)</li> </ul>

<p>A 13+ maths paper based on the exams of Merchant Taylors’, St Albans, Harrow etc. All of which I have tutored students through. Includes fractions, algebra, geometry, probability, angles, sequences and series, problem solving and more.</p> <p>All of the students I have tutored, have used these past papers. In 2022 all of my students got into their first place 13+ schools.</p>

<p>A 13+ maths paper based on the exams of Merchant Taylors’, St Albans, Harrow etc. All of which I have tutored students through. Includes fractions, algebra, geometry, probability, angles, sequences and series, problem solving and more.</p> <p>All of the students I have tutored, have used these past papers. In 2022 all of my students got into their first place 13+ schools.</p>

<p>A 13+ maths paper based on the exams of Merchant Taylors’, St Albans, Harrow etc. All of which I have tutored students through. Includes fractions, algebra, geometry, probability, angles, sequences and series, problem solving and more.</p> <p>All of the students I have tutored, have used these past papers. In 2022 all of my students got into their first place 13+ schools.</p>

<p>A 13+ maths paper based on the exams of Merchant Taylors’, St Albans, Harrow etc. All of which I have tutored students through. Includes fractions, algebra, geometry, probability, angles, sequences and series, problem solving and more.</p> <p>All of the students I have tutored, have used these past papers. In 2022 all of my students got into their first place 13+ schools.</p>

<p>A 13+ maths paper based on the exams of Merchant Taylors’, St Albans, Harrow etc. All of which I have tutored students through. Includes fractions, algebra, geometry, probability, angles, sequences and series, problem solving and more.</p> <p>All of the students I have tutored, have used these past papers. In 2022 all of my students got into their first place 13+ schools.</p>

<p>This document contains comprehensive notes on Logarithms and exponential functions for A Level maths and AS mathematics. It contains a complete set of notes for students, example questions on how each of the sub-topics might be assessed and model examples.</p> <p>The content covered includes:</p> <ul> <li>An introduction to exponential functions</li> <li>The function a^x and its graph, where a is positive</li> <li>Exponential modelling and its applications</li> <li>How to use the function e^x and interpret its graph</li> <li>The logic behind e^kx’s gradient’s relation to ke^kx and why the exponential model is suitable in many applications</li> <li>Laws of logarithms</li> <li>Solving equations using logarithms</li> <li>Natural logarithms</li> <li>Ln x and its graph</li> <li>Logarithms and non linear data<br /> Consideration of limitations and refinements of exponential models</li> </ul>

<p>A comprehensive set of notes for all of integration for both years 1 &amp; 2 of A Level maths, suitable for all major exam boards.</p> <p>Includes explanations and examples of:</p> <ul> <li>Indefinite integrals</li> <li>Definite integrals</li> <li>Integrating polynomials</li> <li>Finding the constant in an integration</li> <li>Finding areas</li> <li>Areas under the x-axis</li> <li>More complicated areas</li> <li>Useful integrations</li> <li>Solving integrals involving trigonometric equations</li> <li>Reverse chain rule</li> <li>Using partial fractions</li> <li>Trapezium rule</li> <li>The substitution method</li> <li>By parts</li> <li>Solving differential equations</li> </ul> <p>It includes graphed examples for areas, as well as step by step guides on how to attempt any of the question types seen above.</p>

<p>A comprehensive set of notes for all of sequences and series for both years 1 &amp; 2 of A Level maths, suitable for all major exam boards.</p> <p>Includes notes and questions (with example answers) on:</p> <ul> <li>Arithmetic Sequences</li> <li>Arithmetic Series</li> <li>Geometric Sequences</li> <li>Geometric Series</li> <li>Sum to Infinity</li> <li>Recurrence Relations</li> <li>Sigma Notation</li> <li>Modeling with Series</li> </ul>

<p>This document contains comprehensive notes on proofs for A Level maths and AS mathematics. It contains a complete set of notes for students, example questions on how each of the sub-topics might be assessed and model examples.</p> <p>The content covered includes:</p> <ul> <li>The basics of mathematical proof</li> <li>Proof by deduction</li> <li>Proving identities</li> <li>Tips and tricks for proofs</li> <li>Proof by exhaustion</li> <li>Disproof by counter example</li> <li>Proof by contradiction</li> </ul> <p>It includes walkthrough examples of problems, and key proofs laid out clearly, such as the proof that the square root of 2 is irrational.</p>

<p>A 13+ maths paper based on the exams of Merchant Taylors’, St Albans, Harrow etc. All of which I have tutored students through. Includes fractions, algebra, geometry, probability, angles, sequences and series, problem solving and more.</p> <p>All of the students I have tutored, have used these past papers. In 2022 all of my students got into their first place 13+ schools.</p>

<p>A 13+ maths paper based on the exams of Merchant Taylors’, St Albans, Harrow etc. All of which I have tutored students through. Includes fractions, algebra, geometry, probability, angles, sequences and series, problem solving and more.</p> <p>All of the students I have tutored, have used these past papers. In 2022 all of my students got into their first place 13+ schools.</p>

<p>Comprehensive notes on topic 4.7.3 Structure and Role of the Processor and its<br /> Components from the AQA. Includes notes on:</p> <ul> <li>The Processor and its Components<br /> - Arithmetic logic unit (ALU)<br /> - Control unit<br /> - Registers<br /> - Clock</li> <li>The Fetch-Execute Cycle<br /> - Interrupts</li> <li>The processor instruction set<br /> - Addressing modes</li> <li>Machine-code/assembly language operations<br /> - Logical Shift</li> <li>Factors affecting processor performance<br /> - Number of cores<br /> - Cache memory<br /> - Clock speed<br /> - Word length<br /> - Address bus width<br /> - Data bus width</li> </ul>