ECCouncil 312-49v11 (Computer Hacking Forensic Investigator) Practice Test 13

Question 120

A ransomware detection occurs during a holiday and no one knows when to involve legal counsel. Which process should define the contact chain?

  1. Time synchronization policy
  2. Audit log tamper protection
  3. BYOD enrollment consent
  4. Incident escalation procedure

Explanation

Correct Answer

D:

An escalation procedure identifies triggers, responsible decision makers and out-of-hours contacts. It reduces delays while preserving decision accountability.

Incorrect Answers

A:

For a separate investigation of consistent clocks across logging systems, a time synchronization policy uses reliable clock sources and drift monitoring to support meaningful cross-system timelines; that is not the determination of timely involvement of appropriate response stakeholders in the stem. Analysts should preserve original offsets in evidence; the evidence still must speak to timely involvement of appropriate response stakeholders.

B:

With timely involvement of appropriate response stakeholders as the investigative issue, centralized protected log collection and restricted deletion privileges reduce the chance that a compromised host can destroy all historical records; the result would concern preserving trustworthy logs despite host compromise. Hashing alone does not make a writable log immutable; this would not resolve timely involvement of appropriate response stakeholders.

C:

For questions about device-owner permissions for workplace investigation, a BYOD agreement may specify permissible monitoring, ownership boundaries and investigation consent; that differs from timely involvement of appropriate response stakeholders. The employer must also follow applicable law and current authorization; it provides no direct answer to timely involvement of appropriate response stakeholders.

Question 121

A technician downloads an untested free utility and runs it against original evidence. Which laboratory policy should govern this choice?

  1. Incident escalation procedure
  2. Secure media disposal
  3. Tool approval and validation
  4. Time synchronization policy

Explanation

Correct Answer

C:

Approved-tool and validation policies require suitability testing, documented versions and authorized use. Tool novelty or price does not prove sound evidence handling.

Incorrect Answers

A:

The required finding is about reliable use of tools on evidence media; an escalation procedure identifies triggers, responsible decision makers and out-of-hours contacts; this addresses the separate concern of timely involvement of appropriate response stakeholders. It reduces delays while preserving decision accountability; it does not by itself answer reliable use of tools on evidence media.

B:

Although the case asks about reliable use of tools on evidence media, media disposal rules choose verified erasure or destruction appropriate to media type and data sensitivity; the action instead concerns safe end-of-life treatment of evidence storage. Simple file deletion is not a sufficient universal sanitization method; it does not establish reliable use of tools on evidence media.

D:

When the investigative task is consistent clocks across logging systems, a time synchronization policy uses reliable clock sources and drift monitoring to support meaningful cross-system timelines; that differs from the question about reliable use of tools on evidence media. Analysts should preserve original offsets in evidence; that leaves reliable use of tools on evidence media unresolved.

Question 122

A retired forensic storage drive holds old personal data and must be removed from service. Which policy should direct sanitization?

  1. Secure media disposal
  2. Tool approval and validation
  3. Logging retention policy
  4. Separation of duties

Explanation

Correct Answer

A:

Media disposal rules choose verified erasure or destruction appropriate to media type and data sensitivity. Simple file deletion is not a sufficient universal sanitization method.

Incorrect Answers

B:

The objective here is safe end-of-life treatment of evidence storage; approved-tool and validation policies require suitability testing, documented versions and authorized use; the option would instead inform reliable use of tools on evidence media. Tool novelty or price does not prove sound evidence handling; it is not direct evidence of safe end-of-life treatment of evidence storage.

C:

For a separate investigation of retention periods for security event history, a logging retention policy sets duration according to risk, operations and legal obligations; that is not the determination of safe end-of-life treatment of evidence storage in the stem. Collecting more sources cannot recover records already overwritten; the evidence still must speak to safe end-of-life treatment of evidence storage.

D:

With safe end-of-life treatment of evidence storage as the investigative issue, separation of duties assigns critical approval and review tasks to different roles; the result would concern independent control over sensitive investigative actions. Independent oversight reduces the opportunity to conceal unauthorized changes; this would not resolve safe end-of-life treatment of evidence storage.

Question 123

One analyst is allowed to collect evidence, approve their own alterations and delete all audit trails. Which governance model would reduce abuse?

  1. Tool approval and validation
  2. Separation of duties
  3. BYOD enrollment consent
  4. Incident escalation procedure

Explanation

Correct Answer

B:

Separation of duties assigns critical approval and review tasks to different roles. Independent oversight reduces the opportunity to conceal unauthorized changes.

Incorrect Answers

A:

In work concerning reliable use of tools on evidence media, approved-tool and validation policies require suitability testing, documented versions and authorized use; the operation would not resolve independent control over sensitive investigative actions. Tool novelty or price does not prove sound evidence handling; the distinction leaves independent control over sensitive investigative actions unsettled.

C:

The required finding is about independent control over sensitive investigative actions; a BYOD agreement may specify permissible monitoring, ownership boundaries and investigation consent; this addresses the separate concern of device-owner permissions for workplace investigation. The employer must also follow applicable law and current authorization; it does not by itself answer independent control over sensitive investigative actions.

D:

Although the case asks about independent control over sensitive investigative actions, an escalation procedure identifies triggers, responsible decision makers and out-of-hours contacts; the action instead concerns timely involvement of appropriate response stakeholders. It reduces delays while preserving decision accountability; it does not establish independent control over sensitive investigative actions.

Question 124

Teams label an event as critical in one department and low priority in another despite equal business impact. Which policy should be standardized?

  1. BYOD enrollment consent
  2. Time synchronization policy
  3. Incident classification standard
  4. Audit log tamper protection

Explanation

Correct Answer

C:

Incident classification defines severity criteria such as business impact, exploitability and urgency. Consistent thresholds support proportional response and escalation.

Incorrect Answers

A:

In an inquiry concerning device-owner permissions for workplace investigation, a BYOD agreement may specify permissible monitoring, ownership boundaries and investigation consent; the scope does not extend to consistent assessment of incident severity. The employer must also follow applicable law and current authorization; that issue cannot settle consistent assessment of incident severity.

B:

Even though the scenario needs consistent assessment of incident severity, a time synchronization policy uses reliable clock sources and drift monitoring to support meaningful cross-system timelines; the action relates to consistent clocks across logging systems. Analysts should preserve original offsets in evidence; this remains insufficient for consistent assessment of incident severity.

D:

The objective here is consistent assessment of incident severity; centralized protected log collection and restricted deletion privileges reduce the chance that a compromised host can destroy all historical records; the option would instead inform preserving trustworthy logs despite host compromise. Hashing alone does not make a writable log immutable; it is not direct evidence of consistent assessment of incident severity.

Question 125

Administrators can erase local event logs after suspicious activity without any protected external copy. Which control should be improved?

  1. Evidence access policy
  2. Incident classification standard
  3. Separation of duties
  4. Audit log tamper protection
  5. Time synchronization policy

Explanation

Correct Answer

D:

Centralized protected log collection and restricted deletion privileges reduce the chance that a compromised host can destroy all historical records. Hashing alone does not make a writable log immutable.

Incorrect Answers

A:

The stem asks about preserving trustworthy logs despite host compromise; evidence access policy restricts repository permissions and approved handling by case role; the described operation is used for controlled permissions for sensitive forensic copies. Broad administrator access expands confidentiality and contamination risk; a determination about preserving trustworthy logs despite host compromise requires other support.

B:

Instead of a method addressing preserving trustworthy logs despite host compromise, incident classification defines severity criteria such as business impact, exploitability and urgency; this one concerns consistent assessment of incident severity. Consistent thresholds support proportional response and escalation; it cannot independently determine preserving trustworthy logs despite host compromise.

C:

In work concerning independent control over sensitive investigative actions, separation of duties assigns critical approval and review tasks to different roles; the operation would not resolve preserving trustworthy logs despite host compromise. Independent oversight reduces the opportunity to conceal unauthorized changes; the distinction leaves preserving trustworthy logs despite host compromise unsettled.

E:

The required finding is about preserving trustworthy logs despite host compromise; a time synchronization policy uses reliable clock sources and drift monitoring to support meaningful cross-system timelines; this addresses the separate concern of consistent clocks across logging systems. Analysts should preserve original offsets in evidence; it does not by itself answer preserving trustworthy logs despite host compromise.

Question 126

A seized drive will pass among three examiners while stored in sealed packaging. Which TWO measures respectively document handovers and reveal possible unauthorized opening? Choose TWO.

  1. Chain-of-custody transfer
  2. Documentation of deviations
  3. Original-versus-working copy
  4. Unique evidence identifier
  5. Tamper-evident seal

Explanation

Correct Answers

A:

In this combined inquiry, a custody transfer log identifies the item, releasing and receiving parties, date, time and purpose; each handover extends the documented possession history for later scrutiny. This addresses who possessed the device at each transfer.

E:

In this combined inquiry, tamper-evident packaging provides visible indications of opening when correctly applied and inspected; it does not establish that digital bytes remained unchanged before sealing. This addresses physical evidence of package opening.

Incorrect Answers

B:

The current inquiry asks about both who possessed the device at each transfer and physical evidence of package opening; a deviation log captures errors, tool settings, retries and skipped sectors so later readers can interpret image completeness; this mechanism chiefly addresses visibility into collection errors and workarounds. A successful final hash does not restore unreadable source sectors; it cannot prove both who possessed the device at each transfer and physical evidence of package opening on its own.

C:

In an inquiry concerning protecting the master acquisition during examination, use a validated working copy for iterative analysis while retaining the original acquisition under controlled, read-only storage; the scope does not extend to both who possessed the device at each transfer and physical evidence of package opening. Derived files should be traceable back to the verified master; that issue cannot settle both who possessed the device at each transfer and physical evidence of package opening.

D:

Even though the scenario needs both who possessed the device at each transfer and physical evidence of package opening, a unique evidence identifier ties each item to photographs, device serials, collection notes and custody entries; the action relates to unambiguous association of each seized drive. Similar appearance or capacity is inadequate for reliable exhibit tracking; this remains insufficient for both who possessed the device at each transfer and physical evidence of package opening.

Question 127

A seized USB drive will be held in a shared evidence locker before imaging. Which physical safeguard makes unauthorized opening more detectable?

  1. Chain-of-custody transfer
  2. Tamper-evident seal
  3. Evidence quarantine
  4. Collection contemporaneous notes

Explanation

Correct Answer

B:

Tamper-evident packaging provides visible indications of opening when correctly applied and inspected. It does not establish that digital bytes remained unchanged before sealing.

Incorrect Answers

A:

With physical evidence of package opening as the investigative issue, a custody transfer log identifies the item, releasing and receiving parties, date, time and purpose; the result would concern who possessed the device at each transfer. Each handover extends the documented possession history for later scrutiny; this would not resolve physical evidence of package opening.

C:

The stem asks about physical evidence of package opening; quarantine uses controlled examination hosts, disabled automatic execution, and approved workflow to isolate potential hazards; the described operation is used for limiting exposure from malicious evidence media. Simply copying the files into a normal office workstation is unsafe; a determination about physical evidence of package opening requires other support.

D:

Instead of a method addressing physical evidence of package opening, contemporaneous photographs and written notes record screen contents, connections, time and actions while conditions are observable; this one concerns the scene before investigative intervention. Memory reconstructed after collection is less reliable; it cannot independently determine physical evidence of package opening.

Question 128

Three identical model hard drives are seized together, and labels are incomplete. Which control prevents exhibit confusion?

  1. Documentation of deviations
  2. Collection contemporaneous notes
  3. Tamper-evident seal
  4. Unique evidence identifier

Explanation

Correct Answer

D:

A unique evidence identifier ties each item to photographs, device serials, collection notes and custody entries. Similar appearance or capacity is inadequate for reliable exhibit tracking.

Incorrect Answers

A:

Although the case asks about unambiguous association of each seized drive, a deviation log captures errors, tool settings, retries and skipped sectors so later readers can interpret image completeness; the action instead concerns visibility into collection errors and workarounds. A successful final hash does not restore unreadable source sectors; it does not establish unambiguous association of each seized drive.

B:

For an analysis centered on the scene before investigative intervention, contemporaneous photographs and written notes record screen contents, connections, time and actions while conditions are observable; the present need is unambiguous association of each seized drive. Memory reconstructed after collection is less reliable; a different finding about unambiguous association of each seized drive is still needed.

C:

When the investigative task is physical evidence of package opening, tamper-evident packaging provides visible indications of opening when correctly applied and inspected; that differs from the question about unambiguous association of each seized drive. It does not establish that digital bytes remained unchanged before sealing; that leaves unambiguous association of each seized drive unresolved.

Question 129

A responder sees an unlocked desktop with open chat windows before shutdown. Which record captures the initial state?

  1. Evidence quarantine
  2. Tamper-evident seal
  3. Unique evidence identifier
  4. Collection contemporaneous notes

Explanation

Correct Answer

D:

Contemporaneous photographs and written notes record screen contents, connections, time and actions while conditions are observable. Memory reconstructed after collection is less reliable.

Incorrect Answers

A:

The objective here is the scene before investigative intervention; quarantine uses controlled examination hosts, disabled automatic execution, and approved workflow to isolate potential hazards; the option would instead inform limiting exposure from malicious evidence media. Simply copying the files into a normal office workstation is unsafe; it is not direct evidence of the scene before investigative intervention.

B:

For a separate investigation of physical evidence of package opening, tamper-evident packaging provides visible indications of opening when correctly applied and inspected; that is not the determination of the scene before investigative intervention in the stem. It does not establish that digital bytes remained unchanged before sealing; the evidence still must speak to the scene before investigative intervention.

C:

With the scene before investigative intervention as the investigative issue, a unique evidence identifier ties each item to photographs, device serials, collection notes and custody entries; the result would concern unambiguous association of each seized drive. Similar appearance or capacity is inadequate for reliable exhibit tracking; this would not resolve the scene before investigative intervention.

Question 130

A USB drive from an untrusted source may contain autorun or exploit code. Which handling practice protects analysis infrastructure?

  1. Chain-of-custody transfer
  2. Tamper-evident seal
  3. Evidence quarantine
  4. Documentation of deviations

Explanation

Correct Answer

C:

Quarantine uses controlled examination hosts, disabled automatic execution, and approved workflow to isolate potential hazards. Simply copying the files into a normal office workstation is unsafe.

Incorrect Answers

A:

A case involving who possessed the device at each transfer might use this approach: a custody transfer log identifies the item, releasing and receiving parties, date, time and purpose; the required result here is limiting exposure from malicious evidence media. Each handover extends the documented possession history for later scrutiny; it cannot replace proof about limiting exposure from malicious evidence media.

B:

The required finding is about limiting exposure from malicious evidence media; tamper-evident packaging provides visible indications of opening when correctly applied and inspected; this addresses the separate concern of physical evidence of package opening. It does not establish that digital bytes remained unchanged before sealing; it does not by itself answer limiting exposure from malicious evidence media.

D:

For an analysis centered on visibility into collection errors and workarounds, a deviation log captures errors, tool settings, retries and skipped sectors so later readers can interpret image completeness; the present need is limiting exposure from malicious evidence media. A successful final hash does not restore unreadable source sectors; a different finding about limiting exposure from malicious evidence media is still needed.

Computer Hacking Forensic Investigator (312-49v11) Practice Tests