ECCouncil 212-89 (EC-Council Certified Incident Handler) Practice Test 22

Question 210

Before detailed examination, an evidence-preservation decision concerns: A USB drive was acquired bit for bit, but the stored image cannot be matched to the source. What immediate custody or scene safeguard matches this constraint?

  1. Quarantine the unverified image from downstream conclusions until checked
  2. Calculate and compare cryptographic hashes for source and forensic image
  3. Preserve the source drive while a proportionate acquisition plan is approved
  4. Repeat acquisition or explain verification failure with full records

Explanation

Correct Answer

A:

Analysts should not treat an uncertain copy as authoritative evidence; the immediate evidence or scene safeguard follows from whether evidence integrity is demonstrable; additional acquisition requires separate authorization.

Incorrect Answers

B:

Matching digests support that the copied bytes are unchanged within hashing assumptions; the goal is immediate evidence protection for whether evidence integrity is demonstrable. Investigation alone does not control current conditions.

C:

Prematurely narrowing collection can permanently lose relevant artifacts; that method could help with whether a logical copy covers the suspected artifacts; the immediate evidence protection decision here involves whether evidence integrity is demonstrable.

D:

A new verified copy may repair the gap if the source remains available; the case needs immediate evidence protection addressing whether evidence integrity is demonstrable; corrective follow-through follows initial protection.

Question 211

A tabletop exercise is being updated using the following real-world failure: An employee reports a smoking workstation that may also hold evidence of unauthorized access. Which improvement should be tracked through the next control-assurance cycle?

  1. After clearance, document state and collect evidence under a qualified plan
  2. Document the power hazard and summon authorized facilities personnel
  3. Secure the area and prevent untrained access to the hazardous device
  4. Use controlled visitor sign-in and removable-media handling protocols
  5. Include electrical and environmental hazards in first-responder training

Explanation

Correct Answer

E:

Digital investigators need safe escalation paths for unsafe scenes; it closes a repeatable gap revealed by whether immediate physical safety is assured without removing useful monitoring.

Incorrect Answers

A:

Any later forensic work must account for emergency interventions; the goal is custody-procedure prevention for whether immediate physical safety is assured. Case recovery is not future-risk control.

B:

Physical danger takes precedence over a routine digital acquisition workflow; an investigation is not recurrence prevention in the decision about whether immediate physical safety is assured.

C:

Safety controls protect people and keep the scene from being disturbed; the case needs custody-procedure prevention addressing whether immediate physical safety is assured; one-time protection is not durable prevention.

D:

Better access records strengthen future scene reconstruction; it is meant to address who accessed the original evidence, not custody-procedure prevention for whether immediate physical safety is assured.

Question 212

An evidence-quality review identifies the need to correct this problem: A responder photographs an endpoint but omits the serial number and installed external media. What must be verified before the evidence handling is complete?

  1. Use standard scene forms that require identifiers and attached-device fields
  2. Add serials, asset tags and connection diagrams to the evidence record
  3. Pause evidence removal until all connected media and device identifiers are recorded
  4. Create a corrected connection diagram showing original and altered states

Explanation

Correct Answer

B:

Specific identity links later images to the seized system; this correction supports an authenticated evidence trail for how an exhibit is uniquely identified before handling is closed.

Incorrect Answers

A:

Mandatory fields prevent common documentation omissions; for how an exhibit is uniquely identified, future hardening is not current-state recovery; evidence-handling correction remains necessary.

C:

Scene completeness should be established before separating components; the goal is evidence-handling correction for how an exhibit is uniquely identified. Temporary protection does not complete correction.

D:

Separate depictions avoid presenting a reconstructed scene as untouched; this serves whether original connections are known, whereas the requested result is evidence-handling correction involving how an exhibit is uniquely identified.

Question 213

A forensic responder tests an evidence-handling uncertainty: An evidence vault stores collected phones beside powered-on radios that may communicate with them. Which evidence-oriented decision is justified before intrusive changes are made?

  1. Inspect device state, radio isolation measures and chain records
  2. Identify applicable data-transfer restrictions, legal authority and shipping custody terms
  3. Apply an approved radio-isolation method that considers power and device behavior
  4. Maintain tested mobile-device isolation storage and handling methods
  5. Verify preservation state and document any network exposure after seizure

Explanation

Correct Answer

A:

Uncontrolled connectivity may permit new data, wipes or notifications; the resulting observation can be checked against the evidentiary question: whether seized devices can receive remote commands.

Incorrect Answers

B:

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 whether seized devices can receive remote commands.

C:

Proper isolation reduces remote alteration without improvised unsafe modifications; the requirement concerns whether seized devices can receive remote commands, so immediate protection does not substantiate findings.

D:

Equipment readiness prevents improvised collection errors; the goal is scene or evidence validation for whether seized devices can receive remote commands. Prevention is not incident verification.

E:

A clear record identifies possible changes to phone evidence; recovery is not factual verification in the decision about whether seized devices can receive remote commands.

Question 214

A first responder begins a documented assessment of the following: A forensic examiner copies files using an ordinary desktop file manager and unintentionally changes metadata. Which initial scene assessment, documentation or evidence check is most defensible?

  1. Stop ad hoc browsing and isolate source media from write-capable workflows
  2. Compare source metadata and acquisition logs for unintended writes
  3. Inspect acquisition logs for read errors, retries and reported sector count
  4. Use forensic write protection and operator training for media acquisitions

Explanation

Correct Answer

B:

Ordinary file operations can change access timestamps and other properties; the first responder needs evidence bearing on whether the acquisition modified evidence with source and context recorded.

Incorrect Answers

A:

Read-only handling protects remaining evidence; the case needs scene or evidence validation addressing whether the acquisition modified evidence; immediate protection does not substantiate findings.

C:

A matching output size does not prove error-free imaging when tools hide failures; the activity targets whether the acquisition is complete; scene or evidence validation here concerns whether the acquisition modified evidence.

D:

Controlled tooling reduces accidental modifications; the requirement concerns whether the acquisition modified evidence, so prevention is not incident verification.

Question 215

The custodian is restoring a defensible collection record following: A sealed hard-drive image is copied to a new repository, but the destination hash is not checked. Which authorized evidence-handling correction is most defensible?

  1. Automate hash verification on every evidence repository migration
  2. Verify preservation state and document any network exposure after seizure
  3. Document damage and use specialized recovery without altering originals
  4. Compare cryptographic digests before and after transfer
  5. Restrict analytical use of the new copy until verification completes
  6. Re-copy from the verified master and retain transfer audit records

Explanation

Correct Answer

F:

A controlled retry can resolve corrupted storage or transmission; the resulting custody or acquisition record should be tested against whether an archived copy retains byte integrity.

Incorrect Answers

A:

Continuous integrity checks detect later bit-level changes; the requirement concerns whether an archived copy retains byte integrity, so future hardening is not current-state recovery.

B:

A clear record identifies possible changes to phone evidence; this serves whether seized devices can receive remote commands, whereas the requested result is evidence-handling correction involving whether an archived copy retains byte integrity.

C:

Condition changes and recovery methods must be disclosed; it is meant to address whether packaging protected fragile electronic components, not evidence-handling correction for whether an archived copy retains byte integrity.

D:

Matching hashes help establish that transport or copying did not change the image; the case needs evidence-handling correction addressing whether an archived copy retains byte integrity; verification is not the corrective step.

E:

A suspect transfer should not be promoted as a trusted master; when judging whether an archived copy retains byte integrity, temporary protection does not complete correction; this is instead immediate evidence protection.

Question 216

The first-response lead needs an authorized protection step for this case: A manager wants an untrained technician to investigate a suspect phone while it remains connected to corporate accounts. What immediate custody or scene safeguard matches this constraint?

  1. Stop casual device browsing and transfer control to qualified staff
  2. Verify responder authority, scope and mobile-forensic capability
  3. Secure the area and prevent untrained access to the hazardous device
  4. Perform an approved mobile acquisition with contemporaneous notes

Explanation

Correct Answer

A:

Unstructured exploration can change volatile state and cloud data; the immediate evidence or scene safeguard follows from whether a collector is authorized and competent; additional acquisition requires separate authorization.

Incorrect Answers

B:

A lawful and defensible acquisition requires appropriate authorization and technique; the goal is immediate evidence protection for whether a collector is authorized and competent. Investigation alone does not control current conditions.

C:

Safety controls protect people and keep the scene from being disturbed; the other incident centers on whether immediate physical safety is assured, not this immediate evidence protection question about whether a collector is authorized and competent.

D:

Controlled collection preserves tool settings, timestamps and limitations; the case needs immediate evidence protection addressing whether a collector is authorized and competent; corrective follow-through follows initial protection.

Question 217

After initial scene control, the chain-of-custody owner reviews: A workstation is on a public-facing counter and customers keep using it after a skimmer alert. Which remedial custody or acquisition step closes the documented gap?

  1. After clearance, document state and collect evidence under a qualified plan
  2. Image relevant storage and preserve peripherals as separate exhibits
  3. Take the terminal out of service through an authorized business process
  4. Establish transaction-safe scene isolation procedures for customer terminals

Explanation

Correct Answer

B:

A complete collection can connect the software findings with attached hardware; the custodian can verify that the evidence gap concerning whether the potential scene is still being altered has been corrected.

Incorrect Answers

A:

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 the potential scene is still being altered.

C:

Preventing access limits additional transactions and evidence contamination; the requirement concerns whether the potential scene is still being altered, so temporary protection does not complete correction.

D:

Prepared replacements avoid pressure to keep compromised devices in use; the goal is evidence-handling correction for whether the potential scene is still being altered. Future hardening is not current-state recovery.

Question 218

Before detailed examination, an evidence-preservation decision concerns: The system clock on a compromised kiosk is seven minutes behind a trusted time source. What immediate custody or scene safeguard matches this constraint?

  1. Monitor time synchronization status on devices that generate security logs
  2. Avoid altering system time before documenting the discrepancy
  3. Record kiosk time and reference time simultaneously without silently resetting it
  4. Document all further changes and stop unnecessary repositioning
  5. Normalize event timestamps in analysis while retaining original values

Explanation

Correct Answer

B:

A premature correction may obscure how recorded timestamps were generated; the immediate evidence or scene safeguard follows from how clock skew affects forensic correlation; additional acquisition requires separate authorization.

Incorrect Answers

A:

Reliable clocks reduce future timeline ambiguity; the requirement concerns how clock skew affects forensic correlation, so prevention cannot replace immediate action.

C:

The observed offset is necessary to align its artifacts with other logs; investigation alone does not control current conditions in the decision about how clock skew affects forensic correlation.

D:

Disciplined scene control prevents avoidable ambiguity; this serves whether original connections are known, whereas the requested result is immediate evidence protection involving how clock skew affects forensic correlation.

E:

Separate raw and adjusted times preserve evidentiary transparency; when judging how clock skew affects forensic correlation, corrective follow-through follows initial protection; this is instead evidence-handling correction.

Question 219

The initial evidence record needs corroboration after this finding: A first responder reaches an unlocked laptop displaying a suspected extortion note in a busy office. Which evidence-oriented decision is justified before intrusive changes are made?

  1. Restrict entry and record who already touched the device
  2. Use a scene documentation checklist with initial-state photographs
  3. Photograph the screen, cable connections and device position before changing state
  4. Record user activity, physical attachments and the current system state

Explanation

Correct Answer

C:

Images preserve transient context that will be altered during collection; the resulting observation can be checked against the evidentiary question: the original observable state of a live scene.

Incorrect Answers

A:

Access control limits additional contamination of potential evidence; when judging the original observable state of a live scene, immediate protection does not substantiate findings; this is instead immediate evidence protection.

B:

Consistent records support later reconstruction and testimony; for the original observable state of a live scene, prevention is not incident verification; scene or evidence validation remains necessary.

D:

Continuing interaction can modify artifacts and confuse timelines; the activity targets whether the potential scene is still being altered; scene or evidence validation here concerns the original observable state of a live scene.

Question 220

The recurrence-prevention decision is based on this report: An incident involves a shared laboratory where unknown visitors may have handled a suspicious USB drive. What measure strengthens readiness against the observed event?

  1. Use controlled visitor sign-in and removable-media handling protocols
  2. Collect visitor badges, access logs and witness statements for the relevant interval
  3. Label the exhibit with location, collector and first observed condition
  4. Teach note-taking with immutable originals and dated addenda

Explanation

Correct Answer

A:

Better access records strengthen future scene reconstruction; it makes the lesson about who accessed the original evidence part of normal operations.

Incorrect Answers

B:

An access chronology identifies potential handlers and alternative explanations; the goal is custody-procedure prevention for who accessed the original evidence. An investigation is not recurrence prevention.

C:

Context and provenance matter when interpreting later technical findings; case recovery is not future-risk control in the decision about who accessed the original evidence.

D:

Structured documentation reduces unintended reconstruction bias; the relevant condition for that step is which statements are contemporaneous observations, which is not shown for who accessed the original evidence.

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