Set 4

Ubuntu L2-Corporal Industry Assignments

(Set 4 | Index 31–40) Root Working Directory: ~/kactii27

---

31. Process Resource Spike Investigation

Scenario: Ops reports sudden CPU and memory spikes.

Instructions:

• Navigate to ~/kactii27

• Create a folder named resource_spike

• Capture baseline CPU and memory usage

• Start a resource-intensive test process

• Capture post-spike metrics

• Save comparison to resource_spike.txt

Commands Expected: top, ps, free -h, kill, redirection

---

32. File Ownership Consistency Check Across Tree

Scenario: Mixed ownership is breaking deployments.

Instructions:

• Navigate to ~/kactii27

• Create a folder named ownership_consistency

• Create nested files and directories

• Inspect ownership recursively

• Identify inconsistent ownership

• Save findings to ownership_check.txt

Commands Expected: ls -lR, find, stat, redirection

---

33. Incremental Backup Simulation (Manual)

Scenario: Ops wants to verify what changes between backups.

Instructions:

• Navigate to ~/kactii27

• Create a folder named incremental_backup

• Capture an initial directory snapshot

• Modify and add files

• Capture a second snapshot

• Compare snapshots and document differences

Commands Expected: ls, find, diff, redirection

---

34. Disk I/O Observation Task

Scenario: Application latency may be disk-related.

Instructions:

• Navigate to ~/kactii27

• Create a folder named disk_io

• Observe disk activity during file operations

• Capture disk usage before and after

• Save observations to disk_io.txt

Commands Expected: iostat (if available), dd, df -h, redirection

---

35. Advanced Archive Inspection Without Extraction

Scenario: Validate archive contents without unpacking.

Instructions:

• Navigate to ~/kactii27

• Create a folder named archive_inspection

• Create and compress files

• Inspect archive contents without extracting

• Save output to archive_contents.txt

Commands Expected: tar -tf, zipinfo, redirection

---

36. Permission Escalation Risk Simulation

Scenario: Security wants to understand permission escalation risks.

Instructions:

• Navigate to ~/kactii27

• Create a folder named perm_risk

• Apply overly permissive permissions

• Demonstrate access implications

• Restore safe permissions

• Document results in risk_report.txt

Commands Expected: chmod, ls -l, redirection

---

37. Multi-User File Access Validation (Simulated)

Scenario: Files must be shared safely across teams.

Instructions:

• Navigate to ~/kactii27

• Create a folder named shared_access

• Assign group permissions

• Validate read/write access logic

• Capture permission matrix in shared_access.txt

Commands Expected: chmod, chgrp, groups, ls -l

---

38. System Log Volume Analysis

Scenario: Logs are growing faster than expected.

Instructions:

• Navigate to ~/kactii27

• Create a folder named log_volume

• Identify large log files

• Sort logs by size

• Save findings to log_sizes.txt

Commands Expected: ls -lh, du -sh, sort -h, redirection

---

39. Network Latency Comparison Test

Scenario: Users report slow access to external services.

Instructions:

• Navigate to ~/kactii27

• Create a folder named latency_test

• Ping multiple hosts

• Compare latency results

• Save outputs to latency_report.txt

Commands Expected: ping, redirection

---

40. Controlled Misconfiguration & Recovery Drill

Scenario: Practice safe recovery from configuration mistakes.

Instructions:

• Navigate to ~/kactii27

• Create a folder named misconfig_recovery

• Intentionally misconfigure a test file or permission

• Observe failure behavior

• Restore correct configuration

• Document steps in recovery_log.txt

Commands Expected: chmod, mv, ls, error observation, redirection

---