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IBM introduces digital hygiene, common threats, access controls, device hardening and safe browsing, with a final applied assessment.

IBM surveys threat actors, malware, security controls and identity management, ending with a project applying multifactor-authentication…

Google’s Office of the CISO introduces security principles, frameworks, defenses and continuity planning for business professionals.

Google develops security domains, frameworks, controls and audit concepts as the second course in its cybersecurity certificate sequence.

Google introduces network communication and protective measures, connecting network architecture, protocols and security risks for new…

UC Irvine prepares learners for IELTS Academic Writing Tasks 1 and 2, covering responses to graphics, essay structure and exam strategies.

UC Irvine introduces IELTS reading question types, sample tasks and time-management strategies in a focused preparation course.

UC Irvine combines IELTS listening and speaking preparation, with section overviews, sample tasks and strategies for focused practice.

Francis Carlisle covers all four IELTS skills in a substantial Academic and General Training preparation course with structured practice.

Karishma Arora introduces IELTS reading, listening, writing and speaking, with concise lessons on task formats and preparation strategies.

Christian C C offers IELTS Academic and General Training preparation across all four skills, including structured speaking and writing…

Asmita Mainali introduces IELTS Speaking Parts 1–3, covering response development, vocabulary, sentence variety and common preparation…

Olonade Philips combines IELTS listening, reading, writing and speaking preparation with vocabulary, grammar and practical revision…

David Morris offers an extensive IELTS preparation library for Academic and General Training, with lessons and practice across all four…

Martin Molenaar offers concise IELTS Academic Writing guidance for Tasks 1 and 2, focusing on task coverage, coherence, vocabulary and…

Howard University introduces matrices, vector equations and Python notebooks, connecting elementary linear algebra with practical data…

Practice inverses, matrix arithmetic, row reduction and eigenvectors with Howard University’s Python-based linear algebra course on…

Luis Serrano connects linear systems, vector transformations and eigenvectors with Python exercises for machine learning and data science.

Study linear systems, vectors and matrix equations with Johns Hopkins, including row reduction and the meaning of existence and uniqueness.

Explore matrix algebra, subspaces, determinants and diagonalization in the second course of Johns Hopkins’ linear algebra sequence.

Johns Hopkins develops orthogonal projections, least squares and symmetric matrices in an intermediate course on geometry and linear…

David Easdown develops geometric vectors, systems, matrices and eigenvectors in Sydney’s substantial introductory linear algebra course.

Colorado Boulder offers a focused linear algebra course covering elimination, matrix properties, eigenvectors, projections and least…

KAIST links elementary linear algebra with AI applications, covering combinations, inverses, determinants and eigenvalue-based…