Network Security
Overzicht
Every network that connects to anything else is a target. Some attacks exploit a technical flaw in software; many more exploit a person, tricked into handing over the one piece of information a well-built firewall cannot stop: their own password. Defending a network means addressing both.
This lesson covers how organisations control who and what can access a network, the specific risks that come with cloud and other modern storage, the technical and behavioural attacks a network must defend against, how vulnerabilities are found before an attacker finds them, and the practices that keep software itself secure by design.
Doelstellingen
- Understand the importance of network security and be able to use appropriate validation and authentication techniques (access control, physical security and firewalls)
- Understand security issues associated with the cloud and other contemporary storage
- Understand different forms of cyber attack (based on technical weaknesses and behaviour), including social engineering (phishing, shoulder surfing, pharming), unpatched software, USB devices, digital devices and eavesdropping
- Understand methods of identifying vulnerabilities, including penetration testing, ethical hacking, commercial analysis tools and review of network and user policies
- Understand how to protect software systems from cyber attacks, including considerations at the software design stage, audit trails, securing operating systems, secure coding, code reviews, modular testing and effective network security provision
Mindmap
Dit onderwerp is in kaart gebracht zodat je ziet hoe de ideeen samenhangen.
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Flashcards
Snelle geheugentraining op wat bij dit onderwerp getoetst wordt.
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Lesnotitie
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Lesevaluatie
Gefeliciteerd met het voltooien van de les op Network Security. Nu je de sleutelconcepten en ideeën, het is tijd om uw kennis op de proef te stellen. Deze sectie biedt een verscheidenheid aan oefeningen vragen die bedoeld zijn om uw begrip te vergroten en u te helpen uw begrip van de stof te peilen.
Je zult een mix van vraagtypen tegenkomen, waaronder meerkeuzevragen, korte antwoordvragen en essayvragen. Elke vraag is zorgvuldig samengesteld om verschillende aspecten van je kennis en kritisch denkvermogen te beoordelen.
Gebruik dit evaluatiegedeelte als een kans om je begrip van het onderwerp te versterken en om gebieden te identificeren waar je mogelijk extra studie nodig hebt. Laat je niet ontmoedigen door eventuele uitdagingen die je tegenkomt; beschouw ze in plaats daarvan als kansen voor groei en verbetering.
- Which term describes proving that a user is who they claim to be? A) Validation B) Authentication C) Access control D) Encryption Answer: B
- An attacker redirects a user to a fake website even though the user typed the correct web address. This is an example of: A) Phishing B) Shoulder surfing C) Pharming D) Eavesdropping Answer: C
- Which of the following is an authorised, controlled attempt to break into a system to find security weaknesses? A) Hacking B) Penetration testing C) Phishing D) Cracking Answer: B
- Why is unpatched software a common security risk? A) It runs more slowly than updated software B) The vulnerability it contains is often already publicly documented by the update that fixes it C) It cannot connect to a network D) It is always more expensive to maintain Answer: B
- Which of the following best describes an audit trail? A) A firewall rule blocking certain IP addresses B) A log recording user activity on a system C) A password policy for user accounts D) An encrypted connection to a website Answer: B
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Aanbevolen Boeken
Verder leren met open bronnen
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Leerboekparagraaf
Cybersecurity Deep Dive
"Introduction to Computer Science: Cybersecurity Deep Dive" by OpenStax, OpenStax, Rice University, licensed under CC BY-NC-SA 4.0 (https://creativecommons.org/licenses/by-nc-sa/4.0/). Source: https://openstax.org/books/introduction-computer-science/pages/14-2-cybersecurity-deep-dive. Access for free at https://openstax.org/books/introduction-computer-science/pages/1-introduction
Gepubliceerd door andere organisaties onder open licenties, vermeld zoals zij vragen. Links openen hun websites.
Oefen Proefexamenvragen
Wilt u proefexamenvragen over Network Security oefenen? Download de Green Bridge CBT-app voor toegang tot proefexamenvragen en volledige oefentoetsen over dit onderwerp.
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Alles wat je nodig hebt om uit te blinken in JAMB, WAEC en NECO.
