Security Aspects
Chapter 12: Computer Science - Ultimate Study Guide | NCERT Class 12 Notes, Questions, Examples & Quiz 2025
Full Chapter Summary & Detailed Notes - Security Aspects Class 12 NCERT
Overview & Key Concepts
- Chapter Goal: Understand threats (malware, hackers, network), prevention (antivirus, firewall, HTTPS). Exam Focus: Malware types, antivirus methods, hackers, DoS; 2025 Updates: Emphasis on ransomware, keyloggers. Fun Fact: Password quote ties to security. Core Idea: Isolation safe but impractical; connectivity risks. Real-World: WannaCry attack. Expanded: All subtopics point-wise with evidence (e.g., Fig 12.1-12.5), examples (e.g., Trojan horse), debates (e.g., cookies benefits vs threats).
- Wider Scope: From isolated systems to network threats; sources: Figures (12.1-12.5), activities (12.1-12.2).
- Expanded Content: Include modern aspects like phishing, zero-day; point-wise for recall; add 2025 relevance like AI malware.
Introduction & Threats Prevention
- Isolation Ideal: No external link safe; but connectivity essential.
- Network Security: Protect device/data from misuse; threats exploit vulnerabilities.
- Expanded: Evidence: Quote on passwords; debates: Connectivity benefits vs risks; real: Post-2020 cyber attacks rise.
Conceptual Diagram: Threat Flow
Flow: Malware → Distribution → Infection → Prevention (Antivirus). Ties to Fig 12.1.
Why This Guide Stands Out
Comprehensive: All subtopics point-wise, figure integrations; 2025 with emerging threats, processes analyzed for scenarios.
Malware
- Definition: Malicious software to damage/steal; types: Virus, Worm, Ransomware, Trojan, Spyware, Adware, Keyloggers.
- Virus: Spreads via contact, activates on execution; ex: ILOVEYOU.
- Worm: Standalone, self-replicates; ex: Storm Worm.
- Ransomware: Blocks/encrypts data, demands ransom; ex: WannaCry (Fig 12.1).
- Trojan: Disguises as legit, creates backdoors (Fig 12.2).
- Spyware: Tracks usage, sells data.
- Adware: Displays ads, pay-per-click.
- Keyloggers: Records keys; hardware/software; virtual vs on-screen (Fig 12.3-12.4).
- Distribution: Downloads, spam, removable devices, network.
- Signs: Pop-ups, slow system, crashes.
- Expanded: Evidence: WannaCry 200k computers; real: 2025 AI worms.
Antivirus
- Definition: Anti-malware software; evolved from virus-only.
- Methods: Signature (VDF), Sandbox, Data mining, Heuristics, Real-time.
- Expanded: Evidence: Polymorphic evasion; debates: Free vs paid.
Spam
- Definition: Unsolicited ads/emails; filters in Gmail.
- Expanded: Evidence: Mailing lists; real: Phishing links.
HTTP vs HTTPS
- HTTP: Plain text, vulnerable.
- HTTPS: Encrypted, SSL certificate; for sensitive data.
- Expanded: Evidence: Lock icon; debates: Overhead vs security.
Firewall
- Definition: Filters traffic (Fig 12.5); software/hardware.
- Types: Network (between nets), Host-based (on computer).
- Expanded: Evidence: School rule example; real: Worm barrier.
Cookies
- Definition: Stored data packets; track browsing.
- Types: Session, Authentication.
- Threats: Supercookies, Zombie, third-party tracking.
- Expanded: Evidence: Auto-fill; debates: Convenience vs privacy.
Hackers and Crackers
- Definition: Skilled in systems/networks.
- Types: White Hat (ethical), Black Hat (malicious), Grey Hat (neutral).
- Expanded: Evidence: Hacktivists; real: Ethical hiring.
Network Security Threats
- DoS/DDoS: Overload resource; Bot-Net (Zombies).
- Intrusion: Asymmetric routing, Buffer overflow, Traffic flooding.
- Snooping: Capture/analyze traffic (Sniffing).
- Eavesdropping: Real-time intercept (Fig 12.6); vs Snooping.
- Expanded: Evidence: DDoS global; real: Wiretapping evolution.
Summary & Exercise
- Key Takeaways: Malware evolves, prevention key; HTTPS/firewall essential; hackers vary intent.
- Exercise Tease: Differentiate malware; explain prevention; Q on threats.
Key Definitions & Terms - Complete Glossary
All terms from chapter; detailed with examples, relevance. Expanded: 30+ terms grouped by subtopic; added advanced like "Phishing", "Zero-Day".
Malware
Malicious software. Ex: Virus. Relevance: Damage/steal.
Virus
Spreads via files. Ex: ILOVEYOU. Relevance: Infects on execution.
Worm
Self-replicates. Ex: Storm Worm. Relevance: Network spread.
Ransomware
Encrypts data. Ex: WannaCry. Relevance: Ransom demand.
Trojan
Disguises legit. Ex: Backdoor. Relevance: User trick.
Spyware
Tracks usage. Ex: Key info. Relevance: Data sell.
Adware
Displays ads. Ex: Pop-ups. Relevance: Revenue.
Keylogger
Records keys. Ex: Passwords. Relevance: Leak sensitive.
Antivirus
Detects malware. Ex: Signature. Relevance: Prevention.
Spam
Unsolicited emails. Ex: Ads. Relevance: Tricks.
HTTP
Plain protocol. Ex: News. Relevance: Vulnerable.
HTTPS
Secure protocol. Ex: Banking. Relevance: Encrypted.
Firewall
Filters traffic. Ex: Network. Relevance: Barrier.
Cookie
Stored data. Ex: Session. Relevance: Tracking.
White Hat
Ethical hacker. Ex: Fix flaws. Relevance: Security.
Black Hat
Malicious hacker. Ex: Exploit. Relevance: Crime.
Grey Hat
Neutral hacker. Ex: Fun hack. Relevance: Challenge.
DoS
Denial service. Ex: Flood. Relevance: Overload.
DDoS
Distributed DoS. Ex: Bot-Net. Relevance: Multi-source.
Snooping
Capture traffic. Ex: Sniffing. Relevance: Analyze.
Eavesdropping
Real-time intercept. Ex: Calls. Relevance: Monitor.
Phishing (Advanced)
Trick credentials. Ex: Fake email. Relevance: Social eng.
Zero-Day (Advanced)
Unknown vuln. Ex: New exploit. Relevance: No patch.
Tip: Group by threat/prevention; examples for recall. Depth: Debates (e.g., ethical hacking). Historical: Virus 1985. Interlinks: To Ch11 Networks. Advanced: Bot-Nets. Real-Life: Cyber attacks. Graphs: Fig 12.5. Coherent: Evidence → Interpretation. For easy learning: Flashcard per term with figure snippet.
60+ Questions & Answers - NCERT Based (Class 12) - From Exercises & Variations
Based on chapter + expansions (e.g., Ex Q1-17). Part A: 10 (1 mark, one line), Part B: 10 (3 marks, four lines), Part C: 10 (4 marks, six lines), Part D: 10 (6 marks, eight lines). Answers point-wise in black text. Include examples where apt.
Part A: 1 Mark Questions (10 Qs - Short)
1. What is malware?
Malicious software.
2. Define virus.
Spreads via files.
3. Name one worm example.
Storm Worm.
4. What is ransomware?
Data blocker.
5. Define Trojan.
Disguised malware.
6. What is spyware?
Tracks usage.
7. Define adware.
Displays ads.
8. What is keylogger?
Records keys.
9. Define spam.
Unsolicited email.
10. What is firewall?
Traffic filter.
Part B: 3 Marks Questions (10 Qs - Medium, Exactly 4 Lines Each)
1. Differentiate virus vs worm.
- Virus: Needs host.
- Worm: Standalone.
- Virus: User trigger.
- Worm: Auto spread.
2. List 3 malware types with examples.
- Ransomware: WannaCry.
- Trojan: Backdoor.
- Spyware: Tracks data.
- Ex: Fig 12.1/12.2.
3. Explain ransomware.
- Blocks/encrypts data.
- Demands ransom.
- Ex: Bitcoin payment.
- Avoid backups.
4. What is antivirus? Methods.
- Detects malware.
- Signature-based.
- Sandbox.
- Heuristics.
5. Differentiate HTTP vs HTTPS.
- HTTP: Plain.
- HTTPS: Encrypted.
- HTTP: Vulnerable.
- HTTPS: Secure.
6. Explain firewall types.
- Network: Between nets.
- Host-based: On computer.
- Filters traffic.
- Ex: Fig 12.5.
7. What are cookies?
- Stored data.
- Track browsing.
- Session/auth.
- Threats: Tracking.
8. Differentiate hackers types.
- White: Ethical.
- Black: Malicious.
- Grey: Neutral.
- Ex: Fix vs exploit.
9. Define DoS.
- Overloads resource.
- Flood requests.
- Denies service.
- DDoS: Distributed.
10. Differentiate snooping vs eavesdropping.
- Snooping: Capture/analyze.
- Eavesdropping: Real-time.
- Snooping: Stored.
- Ex: Fig 12.6.
Part C: 4 Marks Questions (10 Qs - Medium-Long, Exactly 6 Lines Each)
1. Explain malware distribution modes.
- Downloads: Free stuff.
- Spam: Attachments.
- Removable: Pen drives.
- Network: Worms.
- Ex: Unsolicited email.
- Avoid unknown sources.
2. Describe antivirus methods (A-C).
- A: Signature VDF.
- B: Sandbox virtual.
- C: Data mining classify.
- Ex: Polymorphic fail.
- Update regular.
- Real-time monitor.
3. Explain keylogger threats.
- Records keys.
- Leaks passwords/emails.
- Hardware: Transparent overlay.
- Software: Logs send.
- Ex: Virtual keyboard.
- Avoid unknown computers.
4. Differentiate on-screen vs virtual keyboard.
- On-screen: Fixed QWERTY.
- Virtual: Randomized.
- On-screen: Exploitable.
- Virtual: Hard to log.
- Ex: Fig 12.3/12.4.
- Use for security.
5. Explain cookie threats.
- Supercookies: Malware disguise.
- Zombie: Recreates deleted.
- Third-party: Track without consent.
- Ex: Ad items follow.
- Grant permission carefully.
- Privacy risk.
6. Differentiate DoS vs DDoS.
- DoS: Single source flood.
- DDoS: Distributed Zombies.
- DoS: Block easy.
- DDoS: Hard resolve.
- Ex: Bot-Net.
- Overload resource.
7. Explain snooping.
- Capture traffic.
- Analyze/reproduce.
- Not always attack.
- Ex: Sniffer port.
- Encrypt to avoid.
- Vs eavesdropping stored.
8. Describe intrusion problems.
- Asymmetric: Multi paths.
- Buffer overflow: Code inject.
- Traffic flooding: Overload detection.
- Ex: Bypass sensors.
- Unauthorized access.
- Protect with firewall.
9. Explain spam detection.
- Unsolicited ads.
- Filters in Gmail.
- Mark as spam.
- Ex: Mailing lists.
- Avoid clicks.
- Tricks to malware.
10. Differentiate white vs black hat.
- White: Fix flaws.
- Black: Exploit law break.
- White: Hired ethical.
- Black: Malicious.
- Ex: Security experts.
- Grey: Neutral fun.
Part D: 6 Marks Questions (10 Qs - Long, Exactly 8 Lines Each)
1. Justify: Prevention better than cure for malware; list measures.
- Signs: Pop-ups/crashes.
- Antivirus update.
- Avoid pirated/FOSS use.
- Backups regular.
- Firewall enforce.
- No sensitive unknown nets.
- Scan removable.
- No share passwords.
2. Design prevention strategy for keyloggers.
- Use virtual keyboard.
- Avoid public computers.
- Randomized layout.
- Hardware: Check overlays.
- Software: Antivirus scan.
- Ex: Fig 12.4 online.
- Vs QWERTY fixed.
- Secure logins.
3. Explain 3 antivirus methods with examples.
- Signature: VDF update.
- Ex: Fails polymorphic.
- Sandbox: Virtual test.
- Ex: Behavior observe.
- Heuristics: Pattern match.
- Ex: Code compare.
- Real-time: Memory monitor.
- Dormant detect.
4. Differentiate DoS, DDoS, intrusion.
- DoS: Single flood.
- DDoS: Bot-Net multi.
- Ex: Zombie machines.
- Intrusion: Unauthorized activity.
- Ex: Buffer overflow.
- DoS: Overload deny.
- DDoS: Hard block.
- Intrusion: Exploit flaws.
5. Explain security aspects concepts: Threats, Prevention.
- Threats: Exploit vulnerabilities.
- Ex: Malware damage.
- Prevention: Antivirus/firewall.
- Ex: HTTPS encrypt.
- Isolation ideal but impractical.
- Connectivity focus.
- Network protect data.
- Misuse harm reputation.
6. How does eavesdropping work? Vs snooping.
- Eavesdropping: Real-time monitor.
- Ex: Calls/intercept.
- Snooping: Capture/store.
- Ex: Traffic analyze.
- Eavesdropping: Private channels.
- Snooping: Reproduce packets.
- Fig 12.6: Listen hidden.
- Encrypt prevent both.
7. Analyze WannaCry ransomware (Fig 12.1).
- Encrypted data 2017.
- 200k computers 150 countries.
- Bitcoin ransom.
- Block access.
- Ex: Victims cry.
- Prevent updates/backups.
- Spread worm-like.
- Financial damage.
8. Why HTTPS over HTTP? Examples.
- HTTP: Plain vulnerable.
- HTTPS: Encrypt SSL.
- Ex: Banking secure.
- HTTP: News ok.
- Look for lock/https.
- Prevent hacker attacks.
- Protocol rules data.
- Sensitive use HTTPS.
9. Malware vs Antivirus: Infection signs/examples.
- Signs: Pop-ups/slow.
- Ex: Unknown programs.
- Antivirus: Detect/remove.
- Ex: Signature fail outdated.
- Infection: Downloads/spam.
- Prevent: Scan/update.
- Crashes/mass emails.
- Evolve continuous.
10. Network threats advantages; prevention role.
- DoS: Deny access.
- Ex: Flood packets.
- Snooping: Capture unencrypted.
- Ex: Troubleshoot/admin.
- Prevention: Firewall/encrypt.
- Ex: Fig 12.5 barrier.
- 2025: AI threats.
- Basis for security.
Tip: Include figures in ans; practice scenarios. Additional 30 Qs: Variations on exercises, threat scenarios.
Key Concepts - In-Depth Exploration
Core ideas with examples, pitfalls, interlinks. Expanded: All concepts with steps/examples/pitfalls for easy learning. Depth: Debates, analysis.
Malware Types
Steps: 1. Infect, 2. Damage/steal, 3. Spread. Ex: Virus host. Pitfall: Undetected evolve. Interlink: Antivirus. Depth: 7 types details.
Antivirus Methods
Steps: 1. Scan, 2. Detect, 3. Remove. Ex: Sandbox safe. Pitfall: Outdated VDF. Interlink: Real-time. Depth: 5 methods.
Spam
Steps: 1. Send unsolicited, 2. Trick click. Ex: Ads. Pitfall: Phishing. Interlink: Email filters. Depth: Detection algos.
HTTP/HTTPS
Steps: 1. Transmit data, 2. Encrypt HTTPS. Ex: Lock icon. Pitfall: Man-in-middle. Interlink: SSL. Depth: Protocol rules.
Firewall
Steps: 1. Filter rules, 2. Block unauthorized. Ex: Network barrier. Pitfall: Misconfig. Interlink: Types. Depth: Traffic control.
Cookies
Steps: 1. Store data, 2. Track. Ex: Session. Pitfall: Third-party. Interlink: Threats. Depth: Types.
Hackers
Steps: 1. Exploit flaws, 2. Vary intent. Ex: White fix. Pitfall: Grey legal. Interlink: Ethical. Depth: 3 types.
DoS/DDoS
Steps: 1. Flood, 2. Deny. Ex: Bot-Net. Pitfall: Legit mix. Interlink: Zombies. Depth: Variants.
Snooping
Steps: 1. Capture, 2. Analyze. Ex: Sniffing. Pitfall: Unencrypted. Interlink: Vs eavesdrop. Depth: Tools.
Eavesdropping
Steps: 1. Intercept real-time, 2. Monitor. Ex: Calls. Pitfall: Rootkit. Interlink: Wiretap. Depth: Digital.
Phishing (Advanced)
Steps: 1. Fake lure, 2. Steal info. Ex: Email. Pitfall: Social eng. Interlink: Spam. Depth: Variants.
Zero-Day (Advanced)
Steps: 1. Unknown vuln, 2. Exploit. Ex: New malware. Pitfall: No signature. Interlink: Heuristics. Depth: Patches.
Advanced: Cyber laws, encryption. Pitfalls: Outdated software. Interlinks: To Ch11. Real: Ransomware cases. Depth: 12 concepts details. Examples: Real figures. Graphs: Fig 12.5. Errors: Click spam. Tips: Steps evidence; compare threats (virus vs worm).
Examples & Figures - From Text with Simple Explanations
Expanded with evidence, analysis; focus on figures. Added variations for practice.
Example 1: Ransomware (Fig 12.1 - WannaCry)
Simple Explanation: Encrypts, demands payment.
| Aspect | Detail |
|---|---|
| Impact | 200k computers |
| Ransom | Bitcoin |
- Step 1: Infect via vuln.
- Step 2: Encrypt files.
- Step 3: Pay or lose.
- Simple Way: Backups avoid.
Example 2: Trojan Horse (Fig 12.2 - Concept)
Simple Explanation: Hidden soldiers/malware.
| Aspect | Detail |
|---|---|
| Disguise | Legit software |
| Action | Backdoor |
- Step 1: User install.
- Step 2: Activate malicious.
- Step 3: Access system.
- Simple Way: Scan downloads.
Example 3: QWERTY Keyboard (Fig 12.3 - Fixed)
Simple Explanation: Exploitable by keyloggers.
| Aspect | Detail |
|---|---|
| Layout | Fixed |
| Risk | Record positions |
- Step 1: Press keys.
- Step 2: Logger maps.
- Step 3: Leak info.
- Simple Way: Use virtual.
Example 4: Online Virtual Keyboard (Fig 12.4 - Randomized)
Simple Explanation: Hard to log (2025 secure).
| Aspect | Detail |
|---|---|
| Layout | Random |
| Benefit | Confuses logger |
- Step 1: Load random.
- Step 2: Click keys.
- Step 3: No position map.
- Simple Way: Banking use.
Example 5: Firewall (Fig 12.5 - Between Networks)
Simple Explanation: Blocks unauthorized.
| Aspect | Detail |
|---|---|
| Type | Network |
| Action | Filter rules |
- Step 1: Define rules.
- Step 2: Monitor traffic.
- Step 3: Block threats.
- Simple Way: LAN protect.
Example 6: Eavesdropping (Fig 12.6 - Intercept)
Simple Explanation: Real-time listen.
| Aspect | Detail |
|---|---|
| Method | Rootkit |
| Risk | Private comm |
- Step 1: Hack device.
- Step 2: Monitor live.
- Step 3: Steal info.
- Simple Way: Encrypt calls.
Tip: Visualize figures; troubleshoot (e.g., no firewall breach). Added for threats, preventions.
Interactive Quiz - Master Security Aspects
10 MCQs in full sentences; 80%+ goal. Covers malware, threats, prevention.
Quick Revision Notes & Mnemonics
Concise, easy-to-learn summaries for all subtopics. Structured in tables for quick scan: Key points, examples, mnemonics. Covers malware, prevention, threats. Bold key terms; short phrases for fast reading.
| Subtopic | Key Points | Examples | Mnemonics/Tips |
|---|---|---|---|
| Threats Prevention |
|
Connectivity risks. | IPM (Isolation Protect Misuse). Tip: "Connect Carefully" – Use HTTPS/firewall. |
| Malware |
|
WannaCry encrypt. | VWRTS AK (Virus Worm Ransom Trojan Spy Ad Key). Tip: "Malware Spreads Via Downloads" – Scan always. |
| Antivirus |
|
Polymorphic fail. | SSDHR (Signature Sandbox Data Heur Real). Tip: "Antivirus Scans Daily" – Prevent evolve. |
| Spam/HTTP |
|
Gmail mark. | SHE (Spam HTTP Encrypt). Tip: "Spam Hides Exploits" – Lock icon check. |
| Firewall/Cookies |
|
Fig 12.5 barrier. | FC (Filter Cookies). Tip: "Firewall Blocks Cookies Track" – Permission careful. |
| Hackers/Threats |
|
Bot-Net DDoS. | WBG-DSE (White Black Grey DoS Snoop Eaves). Tip: "Hackers Break, Threats Deny" – Ethical fix. |
Overall Tip: Use IPM-VWRTS AK-SSDHR-SHE-FC-WBG-DSE for full scan (5 mins). Flashcards: Front (term), Back (points + mnemonic). Print table for wall revision. Covers 100% chapter – easy for exams!
Key Terms & Processes - All Key
Expanded table 30+ rows; quick ref. Added advanced (e.g., Phishing, Bot-Net).
| Term/Process | Description | Example | Usage |
|---|---|---|---|
| Malware | Malicious software | Virus | Damage |
| Virus | Spreads via host | ILOVEYOU | Infect files |
| Worm | Self-replicate | Storm Worm | Network |
| Ransomware | Encrypt/ransom | WannaCry | Block data |
| Trojan | Disguise legit | Backdoor | Trick install |
| Spyware | Track info | Usage data | Sell ads |
| Adware | Display ads | Pop-ups | Revenue |
| Keylogger | Record keys | Passwords | Leak |
| Antivirus | Detect/remove | Signature | Prevention |
| Spam | Unsolicited | Ads email | Tricks |
| HTTP | Plain protocol | News sites | Vulnerable |
| HTTPS | Secure encrypt | Banking | Protect |
| Firewall | Filter traffic | Network | Barrier |
| Cookie | Store browsing | Session | Track |
| White Hat | Ethical hacker | Fix flaws | Security |
| Black Hat | Malicious | Exploit | Crime |
| Grey Hat | Neutral | Fun hack | Challenge |
| DoS | Denial service | Flood | Overload |
| DDoS | Distributed DoS | Bot-Net | Multi |
| Snooping | Capture traffic | Sniffing | Analyze |
| Eavesdropping | Real-time intercept | Calls | Monitor |
| Phishing | Trick credentials | Fake email | Social eng |
| Bot-Net | Zombie network | DDoS | Control |
| Signature | Virus bytes | VDF | Detect |
| Sandbox | Virtual test | Behavior | Safe run |
| Heuristics | Pattern match | Code compare | Unknown |
| Buffer Overflow | Code inject | DoS | Intrusion |
| Supercookie | Malware disguise | Tracking | Threat |
| Zombie Cookie | Recreates deleted | Persistent | Threat |
| Hacktivist | Political hacker | Social change | Intent |
| Wiretapping | Old eavesdrop | Phones | Intercept |
| Rootkit | Hidden malware | Eavesdrop | Stealth |
Tip: Examples memory; sort subtopic. Easy: Table scan. Added 10 rows depth.
Security Processes Step-by-Step
Step-by-step breakdowns of core processes, structured as full questions followed by detailed answers with steps. Visual descriptions for easy understanding; focus on actionable Q&A with examples from chapter.
Question 1: How does malware infect and how to prevent as in examples?
- Step 1: Distribute (download/spam).
- Step 2: Infect (execute file).
- Step 3: Damage (steal/block).
- Step 4: Scan antivirus.
- Step 5: Update software.
- Step 6: Avoid unknown.
Visual: Chain – Download → Infect → Prevent (Antivirus). Example: WannaCry spread.
Question 2: What steps in antivirus detection (signature method)?
- Step 1: Update VDF.
- Step 2: Scan files.
- Step 3: Match signatures.
- Step 4: Quarantine match.
- Step 5: Remove malware.
- Step 6: Report user.
Visual: Database match – File → Signature → Detect. Example: Virus bytes.
Question 3: How to use virtual keyboard against keyloggers (Fig 12.4)?
- Step 1: Load online.
- Step 2: Random layout.
- Step 3: Click keys mouse.
- Step 4: Input sensitive.
- Step 5: No key press log.
- Step 6: Close session.
Visual: Shuffle keys – Random → Click → Secure. Example: Banking login.
Question 4: Process of firewall filtering (Fig 12.5)?
- Step 1: Define rules.
- Step 2: Monitor incoming/out.
- Step 3: Match packets.
- Step 4: Block unauthorized.
- Step 5: Allow trusted.
- Step 6: Log events.
Visual: Wall barrier – Traffic → Filter → Pass/Block. Example: Student access limit.
Question 5: How does DDoS attack work?
- Step 1: Compromise Zombies.
- Step 2: Install Bot.
- Step 3: Activate Bot-Net.
- Step 4: Flood target.
- Step 5: Overload deny.
- Step 6: Hard recover.
Visual: Network flood – Zombies → Target → Crash. Example: Global distributed.
Question 6: Steps to handle cookie permissions.
- Step 1: Site requests.
- Step 2: Check third-party.
- Step 3: Grant selective.
- Step 4: Clear regularly.
- Step 5: Avoid zombie.
- Step 6: Privacy settings.
Visual: Data packet – Store → Track → Manage. Example: Ad follow.
Tip: Treat as FAQ; apply to figures. Easy: Q → Steps + Visual. Full Q&A for exam-like practice.
