ECCouncil 212-89 (EC-Council Certified Incident Handler) Practice Test 26

Question 250

A responder must safeguard a scene or evidence workflow described as follows: A forensic examiner copies files using an ordinary desktop file manager and unintentionally changes metadata. Which immediate preservation, authorization or scene-control decision is safest?

  1. Stop ad hoc browsing and isolate source media from write-capable workflows
  2. Use forensic write protection and operator training for media acquisitions
  3. Quarantine the unverified image from downstream conclusions until checked
  4. Reacquire with a validated write blocker and record earlier alterations
  5. Compare source metadata and acquisition logs for unintended writes

Explanation

Correct Answer

A:

Read-only handling protects remaining evidence; the immediate evidence or scene safeguard follows from whether the acquisition modified evidence; additional acquisition requires separate authorization.

Incorrect Answers

B:

Controlled tooling reduces accidental modifications; when judging whether the acquisition modified evidence, prevention cannot replace immediate action; this is instead custody-procedure prevention.

C:

Analysts should not treat an uncertain copy as authoritative evidence; the other incident centers on whether evidence integrity is demonstrable, not this immediate evidence protection question about whether the acquisition modified evidence.

D:

A defensible process documents limitations rather than hiding them; the requirement concerns whether the acquisition modified evidence, so corrective follow-through follows initial protection.

E:

Ordinary file operations can change access timestamps and other properties; the goal is immediate evidence protection for whether the acquisition modified evidence. Investigation alone does not control current conditions.

Question 251

Before detailed examination, an evidence-preservation decision concerns: Responders discover a server cabinet unlocked after a possible physical tampering event. Which controlled first action preserves the relevant evidence and authority?

  1. Record exact equipment identifiers and condition before removal
  2. Photograph seals, rack positions, cabling and cabinet access controls
  3. Establish a controlled entry point and begin logging all further access
  4. Control the room perimeter and maintain a scene-entry log
  5. Require sealed racks and auditable physical access procedures

Explanation

Correct Answer

D:

Documented access helps distinguish responders from potential suspects; the first-response protection addresses which physical conditions must be documented without prematurely altering the scene.

Incorrect Answers

A:

Unique identifiers prevent mix-ups among similar devices; when judging which physical conditions must be documented, corrective follow-through follows initial protection; this is instead evidence-handling correction.

B:

These details may show unauthorized physical interaction before equipment is moved; for which physical conditions must be documented, investigation alone does not control current conditions; immediate evidence protection remains necessary.

C:

Immediate perimeter discipline limits additional unexplained changes; this serves whether the scene's integrity can be reconstructed, whereas the requested result is immediate evidence protection involving which physical conditions must be documented.

E:

Physical control reduces tampering opportunities and improves traceability; prevention cannot replace immediate action in the decision about which physical conditions must be documented.

Question 252

A tabletop exercise is being updated using the following real-world failure: A responder images a disk through an untested adapter that silently drops read errors. Which improvement should be tracked through the next control-assurance cycle?

  1. Inspect acquisition logs for read errors, retries and reported sector count
  2. Qualify imaging adapters and inspect error reporting during exercises
  3. Reacquire with a validated device and document unreadable regions
  4. Use forensic write protection and operator training for media acquisitions

Explanation

Correct Answer

B:

Validated tooling increases repeatability of forensic acquisition; this turns the weakness behind whether the acquisition is complete into a measurable prevention requirement.

Incorrect Answers

A:

A matching output size does not prove error-free imaging when tools hide failures; the goal is custody-procedure prevention for whether the acquisition is complete. An investigation is not recurrence prevention.

C:

Full logging distinguishes collection limitations from deliberate modification; the case needs custody-procedure prevention addressing whether the acquisition is complete; case recovery is not future-risk control.

D:

Controlled tooling reduces accidental modifications; the other incident centers on whether the acquisition modified evidence, not this custody-procedure prevention question about whether the acquisition is complete.

Question 253

A control owner is preparing preventive actions after observing: A sealed hard-drive image is copied to a new repository, but the destination hash is not checked. What tested hardening or process measure follows from the lessons learned?

  1. Restrict analytical use of the new copy until verification completes
  2. Compare cryptographic digests before and after transfer
  3. Use unique barcodes and two-person packaging verification
  4. Automate hash verification on every evidence repository migration
  5. Re-copy from the verified master and retain transfer audit records

Explanation

Correct Answer

D:

Continuous integrity checks detect later bit-level changes; its effectiveness can be exercised against the warning conditions associated with whether an archived copy retains byte integrity.

Incorrect Answers

A:

A suspect transfer should not be promoted as a trusted master; when judging whether an archived copy retains byte integrity, one-time protection is not durable prevention; this is instead immediate evidence protection.

B:

Matching hashes help establish that transport or copying did not change the image; for whether an archived copy retains byte integrity, an investigation is not recurrence prevention; custody-procedure prevention remains necessary.

C:

Dual checks prevent mix-ups across similar devices; the activity targets whether exhibit identity survives packaging; custody-procedure prevention here concerns whether an archived copy retains byte integrity.

E:

A controlled retry can resolve corrupted storage or transmission; case recovery is not future-risk control in the decision about whether an archived copy retains byte integrity.

Question 254

A post-incident audit examines the following failure mode: A responder photographs an endpoint but omits the serial number and installed external media. What recurring check or restriction would best address the weakness?

  1. Add serials, asset tags and connection diagrams to the evidence record
  2. Compare image metadata, inventory records and device markings
  3. Validate scene mapping against a physical walkthrough before exit
  4. Use standard scene forms that require identifiers and attached-device fields

Explanation

Correct Answer

D:

Mandatory fields prevent common documentation omissions; the control owner can test whether this reduces repeat conditions affecting how an exhibit is uniquely identified.

Incorrect Answers

A:

Specific identity links later images to the seized system; for how an exhibit is uniquely identified, case recovery is not future-risk control; custody-procedure prevention remains necessary.

B:

A device description without distinguishing identifiers risks misattribution; the requirement concerns how an exhibit is uniquely identified, so an investigation is not recurrence prevention.

C:

Cross-checking plans minimizes omitted exhibits; the other incident centers on whether the scene diagram accurately describes network context, not this custody-procedure prevention question about how an exhibit is uniquely identified.

Question 255

Before completing an evidence transfer, staff must resolve this issue: A manager wants an untrained technician to investigate a suspect phone while it remains connected to corporate accounts. Which handling correction restores reliability of the evidence record?

  1. Perform an approved mobile acquisition with contemporaneous notes
  2. Train frontline staff to secure devices rather than search through them
  3. After clearance, document state and collect evidence under a qualified plan
  4. Stop casual device browsing and transfer control to qualified staff

Explanation

Correct Answer

A:

Controlled collection preserves tool settings, timestamps and limitations; the resulting custody or acquisition record should be tested against whether a collector is authorized and competent.

Incorrect Answers

B:

Defined role boundaries reduce accidental data alteration; when judging whether a collector is authorized and competent, future hardening is not current-state recovery; this is instead custody-procedure prevention.

C:

Any later forensic work must account for emergency interventions; that method could help with whether immediate physical safety is assured; the evidence-handling correction decision here involves whether a collector is authorized and competent.

D:

Unstructured exploration can change volatile state and cloud data; the requirement concerns whether a collector is authorized and competent, so temporary protection does not complete correction.

Question 256

The initial evidence record needs corroboration after this finding: A sealed server disk is handed to a courier without any recorded transfer signature. Which evidence-oriented decision is justified before intrusive changes are made?

  1. Secure the item and suspend further informal transfers
  2. Identify the last documented holder and reconcile courier tracking records
  3. Identify applicable data-transfer restrictions, legal authority and shipping custody terms
  4. Require timestamped signatures at every change of possession

Explanation

Correct Answer

B:

An undocumented handoff creates a custody gap that must be explained; the resulting observation can be checked against the evidentiary question: where chain of custody lost accountability.

Incorrect Answers

A:

Controlled custody limits new uncertainty; when judging where chain of custody lost accountability, immediate protection does not substantiate findings; this is instead immediate evidence protection.

C:

Physical shipment may trigger privacy, customs and contractual obligations; the relevant condition for that step is whether cross-border handling is authorized, which is not shown for where chain of custody lost accountability.

D:

Continuous records establish who controlled the evidence; the goal is scene or evidence validation for where chain of custody lost accountability. Prevention is not incident verification.

Question 257

The first-response lead needs an authorized protection step for this case: An investigator collects a cloud audit export but forgets to note the query filters and time zone. Which controlled first action preserves the relevant evidence and authority?

  1. Reexport with documented scope and cryptographic integrity checks
  2. Use standardized cloud evidence export templates with query provenance
  3. Preserve the exact query, time range, timezone and export job identifier
  4. Stop overwriting the only export and secure the source retention policy
  5. Stop ad hoc browsing and isolate source media from write-capable workflows

Explanation

Correct Answer

D:

Preservation protects both the current result and ability to re-query; the first-response protection addresses whether the log collection is reproducible without prematurely altering the scene.

Incorrect Answers

A:

Reproducible searches improve confidence in the event set; when judging whether the log collection is reproducible, corrective follow-through follows initial protection; this is instead evidence-handling correction.

B:

Consistent metadata makes investigations repeatable; for whether the log collection is reproducible, prevention cannot replace immediate action; immediate evidence protection remains necessary.

C:

Without collection parameters, missing events cannot be interpreted reliably; the requirement concerns whether the log collection is reproducible, so investigation alone does not control current conditions.

E:

Read-only handling protects remaining evidence; it is meant to address whether the acquisition modified evidence, not immediate evidence protection for whether the log collection is reproducible.

Question 258

A forensic responder tests an evidence-handling uncertainty: An employee reports a smoking workstation that may also hold evidence of unauthorized access. What targeted first-responder task best establishes the facts without altering evidence?

  1. Document the power hazard and summon authorized facilities personnel
  2. Include electrical and environmental hazards in first-responder training
  3. Secure the area and prevent untrained access to the hazardous device
  4. Collect visitor badges, access logs and witness statements for the relevant interval

Explanation

Correct Answer

A:

Physical danger takes precedence over a routine digital acquisition workflow; this informs the initial finding about whether immediate physical safety is assured without unnecessary disturbance of evidence.

Incorrect Answers

B:

Digital investigators need safe escalation paths for unsafe scenes; the case needs scene or evidence validation addressing whether immediate physical safety is assured; prevention is not incident verification.

C:

Safety controls protect people and keep the scene from being disturbed; when judging whether immediate physical safety is assured, immediate protection does not substantiate findings; this is instead immediate evidence protection.

D:

An access chronology identifies potential handlers and alternative explanations; that method could help with who accessed the original evidence; the scene or evidence validation decision here involves whether immediate physical safety is assured.

Question 259

A first responder begins a documented assessment of the following: An incident involves a shared laboratory where unknown visitors may have handled a suspicious USB drive. Which initial scene assessment, documentation or evidence check is most defensible?

  1. Separate time-stamped first-hand notes from later interviews in the case record
  2. Use controlled visitor sign-in and removable-media handling protocols
  3. Collect visitor badges, access logs and witness statements for the relevant interval
  4. Secure the drive in place until it can be documented and collected safely

Explanation

Correct Answer

C:

An access chronology identifies potential handlers and alternative explanations; the first responder needs evidence bearing on who accessed the original evidence with source and context recorded.

Incorrect Answers

A:

Evidence quality depends on preserving when and how each statement arose; the relevant condition for that step is which statements are contemporaneous observations, which is not shown for who accessed the original evidence.

B:

Better access records strengthen future scene reconstruction; when judging who accessed the original evidence, prevention is not incident verification; this is instead custody-procedure prevention.

D:

Uncontrolled handling could introduce new fingerprints or modify data; the requirement concerns who accessed the original evidence, so immediate protection does not substantiate findings.

Question 260

The initial evidence record needs corroboration after this finding: A live Linux host is scheduled for shutdown, but investigators need its active connections and processes. What case-specific examination makes the evidence record reliable?

  1. Maintain tested live-response toolkits and acquisition procedures
  2. Preserve the exact query, time range, timezone and export job identifier
  3. Capture active socket, process and memory state using approved tools
  4. Delay shutdown briefly under approved risk controls while collection completes

Explanation

Correct Answer

C:

Volatile information can expose current sessions and malware that disk imaging misses; the first responder needs evidence bearing on which artifacts will disappear on shutdown with source and context recorded.

Incorrect Answers

A:

Prepared collection reduces errors when time is constrained; the requirement concerns which artifacts will disappear on shutdown, so prevention is not incident verification.

B:

Without collection parameters, missing events cannot be interpreted reliably; the relevant condition for that step is whether the log collection is reproducible, which is not shown for which artifacts will disappear on shutdown.

D:

Authorized sequencing balances continued compromise risk against evidence loss; the case needs scene or evidence validation addressing which artifacts will disappear on shutdown; immediate protection does not substantiate findings.

EC-Council Certified Incident Handler (212-89) Practice Tests