ECCouncil 312-49v11 (Computer Hacking Forensic Investigator) Practice Test 25

Question 240

An encrypted mobile device is unlocked and powered on, but charging conditions at the scene are uncertain. Which practical concern matters?

  1. Powered-off state assessment
  2. Remote site witness
  3. Battery preservation
  4. Scene safety check

Explanation

Correct Answer

C:

Maintaining safe power may preserve accessible state and keys while custody and isolation are arranged. An unexpected shutdown can change acquisition options substantially.

Incorrect Answers

A:

Although the case asks about continued availability of an unlocked device, booting the installed system may write logs, update caches and alter metadata, while it cannot restore lost RAM state; the action instead concerns avoiding disk alterations from investigative booting. Controlled offline imaging usually preserves the prior disk state better; it does not establish continued availability of an unlocked device.

B:

For an analysis centered on reliability of collection performed with local assistance, document each participant's identity, authority, actions and observations, preferably with contemporaneous records; the present need is continued availability of an unlocked device. Remote direction alone does not provide an adequate custody trail; a different finding about continued availability of an unlocked device is still needed.

D:

The current inquiry asks about continued availability of an unlocked device; personal safety and hazard assessment precede collection; involve qualified facilities staff as needed; this mechanism chiefly addresses safe entry into a hazardous digital crime scene. Evidence preservation does not justify avoidable injury or electrocution; it cannot prove continued availability of an unlocked device on its own.

Question 241

A bare hard drive will be carried to a forensic lab in a vehicle. What packaging reduces shock and electrostatic damage?

  1. Perishable evidence recognition
  2. Media transport packaging
  3. Faraday isolation
  4. Battery preservation

Explanation

Correct Answer

B:

Appropriate antistatic protection, cushioning and labeled secure containers help protect electronics during transport. Packaging must also preserve custody identifiers and seals.

Incorrect Answers

A:

The objective here is physical integrity of transported drive electronics; recognizing perishable evidence directs timely collection of transient tables before reboot or rollover; the option would instead inform short-lived network state before it disappears. Priority should be coordinated with service safety and authorization; it is not direct evidence of physical integrity of transported drive electronics.

C:

With physical integrity of transported drive electronics as the investigative issue, radio isolation with a tested Faraday enclosure can block wireless communications when applied correctly; the result would concern remote wireless contact with a seized handset. Power state, battery life and enclosure effectiveness still require monitoring; this would not resolve physical integrity of transported drive electronics.

D:

For questions about continued availability of an unlocked device, maintaining safe power may preserve accessible state and keys while custody and isolation are arranged; that differs from physical integrity of transported drive electronics. An unexpected shutdown can change acquisition options substantially; it provides no direct answer to physical integrity of transported drive electronics.

Question 242

A desktop is found switched off and no volatile evidence remains available. Why avoid a routine boot just to identify files?

  1. Perishable evidence recognition
  2. Network cable documentation
  3. Media transport packaging
  4. Powered-off state assessment

Explanation

Correct Answer

D:

Booting the installed system may write logs, update caches and alter metadata, while it cannot restore lost RAM state. Controlled offline imaging usually preserves the prior disk state better.

Incorrect Answers

A:

A case involving short-lived network state before it disappears might use this approach: recognizing perishable evidence directs timely collection of transient tables before reboot or rollover; the required result here is avoiding disk alterations from investigative booting. Priority should be coordinated with service safety and authorization; it cannot replace proof about avoiding disk alterations from investigative booting.

B:

The required finding is about avoiding disk alterations from investigative booting; document port numbers, link state, addresses where known and the exact disconnection time; this addresses the separate concern of provenance of a scene network disconnection. This ties subsequent loss of connectivity to investigator action rather than attacker behavior; it does not by itself answer avoiding disk alterations from investigative booting.

C:

Although the case asks about avoiding disk alterations from investigative booting, appropriate antistatic protection, cushioning and labeled secure containers help protect electronics during transport; the action instead concerns physical integrity of transported drive electronics. Packaging must also preserve custody identifiers and seals; it does not establish avoiding disk alterations from investigative booting.

Question 243

Evidence collection occurs at an overseas branch with no local examiner, and a local custodian will assist. Which practice improves accountability?

  1. Battery preservation
  2. Scene safety check
  3. Photographic documentation
  4. Remote site witness
  5. Network cable documentation
  6. Perishable evidence recognition

Explanation

Correct Answer

D:

Document each participant's identity, authority, actions and observations, preferably with contemporaneous records. Remote direction alone does not provide an adequate custody trail.

Incorrect Answers

A:

Even though the scenario needs reliability of collection performed with local assistance, maintaining safe power may preserve accessible state and keys while custody and isolation are arranged; the action relates to continued availability of an unlocked device. An unexpected shutdown can change acquisition options substantially; this remains insufficient for reliability of collection performed with local assistance.

B:

For the separate question of safe entry into a hazardous digital crime scene, personal safety and hazard assessment precede collection; involve qualified facilities staff as needed; the requested assessment of reliability of collection performed with local assistance remains open. Evidence preservation does not justify avoidable injury or electrocution; there is no direct finding about reliability of collection performed with local assistance.

C:

The objective here is reliability of collection performed with local assistance; photograph labels, ports, cable routing and visible state before disconnecting; the option would instead inform physical arrangement of attached equipment. The documentation supports later reconstruction of connections that a disk image cannot show; it is not direct evidence of reliability of collection performed with local assistance.

E:

With reliability of collection performed with local assistance as the investigative issue, document port numbers, link state, addresses where known and the exact disconnection time; the result would concern provenance of a scene network disconnection. This ties subsequent loss of connectivity to investigator action rather than attacker behavior; this would not resolve reliability of collection performed with local assistance.

F:

For questions about short-lived network state before it disappears, recognizing perishable evidence directs timely collection of transient tables before reboot or rollover; that differs from reliability of collection performed with local assistance. Priority should be coordinated with service safety and authorization; it provides no direct answer to reliability of collection performed with local assistance.

Question 244

Several drives are removed from a RAID enclosure with uncertain member order. What should happen before packing each one?

  1. Powered-off state assessment
  2. Photographic documentation
  3. Faraday isolation
  4. Seized media labels

Explanation

Correct Answer

D:

Label each member's original bay, controller and serial details, with photographs. Array reconstruction can fail if member order or metadata context is lost.

Incorrect Answers

A:

Instead of a method addressing mapping seized RAID disks to original slots, booting the installed system may write logs, update caches and alter metadata, while it cannot restore lost RAM state; this one concerns avoiding disk alterations from investigative booting. Controlled offline imaging usually preserves the prior disk state better; it cannot independently determine mapping seized RAID disks to original slots.

B:

In work concerning physical arrangement of attached equipment, photograph labels, ports, cable routing and visible state before disconnecting; the operation would not resolve mapping seized RAID disks to original slots. The documentation supports later reconstruction of connections that a disk image cannot show; the distinction leaves mapping seized RAID disks to original slots unsettled.

C:

A case involving remote wireless contact with a seized handset might use this approach: radio isolation with a tested Faraday enclosure can block wireless communications when applied correctly; the required result here is mapping seized RAID disks to original slots. Power state, battery life and enclosure effectiveness still require monitoring; it cannot replace proof about mapping seized RAID disks to original slots.

Question 245

An active router stores only a few hours of connection state in volatile memory. Which field judgment makes its capture urgent?

  1. Perishable evidence recognition
  2. Network cable documentation
  3. Powered-off state assessment
  4. Photographic documentation

Explanation

Correct Answer

A:

Recognizing perishable evidence directs timely collection of transient tables before reboot or rollover. Priority should be coordinated with service safety and authorization.

Incorrect Answers

B:

In an inquiry concerning provenance of a scene network disconnection, document port numbers, link state, addresses where known and the exact disconnection time; the scope does not extend to short-lived network state before it disappears. This ties subsequent loss of connectivity to investigator action rather than attacker behavior; that issue cannot settle short-lived network state before it disappears.

C:

Even though the scenario needs short-lived network state before it disappears, booting the installed system may write logs, update caches and alter metadata, while it cannot restore lost RAM state; the action relates to avoiding disk alterations from investigative booting. Controlled offline imaging usually preserves the prior disk state better; this remains insufficient for short-lived network state before it disappears.

D:

For the separate question of physical arrangement of attached equipment, photograph labels, ports, cable routing and visible state before disconnecting; the requested assessment of short-lived network state before it disappears remains open. The documentation supports later reconstruction of connections that a disk image cannot show; there is no direct finding about short-lived network state before it disappears.

Question 246

An analyst wants to restart a suspected infected PC before capturing running processes. Which sequence better preserves forensic options?

  1. Clipboard capture decision
  2. Running process inventory
  3. RAM-before-reboot decision
  4. Logged-on user sessions

Explanation

Correct Answer

C:

Acquire volatile memory and relevant live state before a reboot when justified and authorized. Restarting normally destroys RAM evidence and alters the execution environment.

Incorrect Answers

A:

For questions about temporary clipboard material, clipboard contents can be overwritten by ordinary user activity and may be obtainable only during a controlled live examination; that differs from volatile process and memory data prior to restart. Collection must respect sensitivity and case scope; it provides no direct answer to volatile process and memory data prior to restart.

B:

The stem asks about volatile process and memory data prior to restart; record processes, identifiers, command lines and parent relationships where available, then correlate with memory evidence; the described operation is used for running program context on a suspect host. A static folder listing cannot capture every in-memory execution state; a determination about volatile process and memory data prior to restart requires other support.

D:

In work concerning users currently authenticated to the system, record active sessions, account identities and session identifiers before logout, preserving tool output and time; the operation would not resolve volatile process and memory data prior to restart. Current sessions cannot be reliably reconstructed from a future account listing; the distinction leaves volatile process and memory data prior to restart unsettled.

Question 247

A responder is about to isolate a live compromised host and needs both its present socket-to-process mapping and the offset of its clock from a trusted reference. Which TWO captures should occur first? Choose TWO.

  1. Network connection snapshot
  2. System time baseline
  3. Clipboard capture decision
  4. RAM-before-reboot decision
  5. Running process inventory

Explanation

Correct Answers

A:

In this combined inquiry, capture current network connections with process association using trusted response tools; historical firewall records may lack the ephemeral local process-to-socket mapping. This addresses live association of sockets with processes.

B:

In this combined inquiry, capture the host clock alongside a trusted reference and observed offset, including timezone; this supports later normalization without rewriting source timestamps. This addresses clock offset at the point of collection.

Incorrect Answers

C:

The current inquiry asks about both live association of sockets with processes and clock offset at the point of collection; clipboard contents can be overwritten by ordinary user activity and may be obtainable only during a controlled live examination; this mechanism chiefly addresses temporary clipboard material. Collection must respect sensitivity and case scope; it cannot prove both live association of sockets with processes and clock offset at the point of collection on its own.

D:

In an inquiry concerning volatile process and memory data prior to restart, acquire volatile memory and relevant live state before a reboot when justified and authorized; the scope does not extend to both live association of sockets with processes and clock offset at the point of collection. Restarting normally destroys RAM evidence and alters the execution environment; that issue cannot settle both live association of sockets with processes and clock offset at the point of collection.

E:

Even though the scenario needs both live association of sockets with processes and clock offset at the point of collection, record processes, identifiers, command lines and parent relationships where available, then correlate with memory evidence; the action relates to running program context on a suspect host. A static folder listing cannot capture every in-memory execution state; this remains insufficient for both live association of sockets with processes and clock offset at the point of collection.

Question 248

A fileless implant is believed to execute in an otherwise legitimate process. Which live collection step preserves a starting point for analysis?

  1. ARP neighbor table
  2. Running process inventory
  3. Route table capture
  4. Open file handles

Explanation

Correct Answer

B:

Record processes, identifiers, command lines and parent relationships where available, then correlate with memory evidence. A static folder listing cannot capture every in-memory execution state.

Incorrect Answers

A:

For a separate investigation of recent local IP and hardware address associations, the neighbor or ARP cache may show recently resolved link-layer peers; that is not the determination of running program context on a suspect host in the stem. Entries expire and can be spoofed, so they require corroboration; the evidence still must speak to running program context on a suspect host.

C:

For questions about current packet forwarding decisions, record the active routing table and interface metrics to explain how packets are forwarded; that differs from running program context on a suspect host. A later disk image alone may not show the transient route choice; it provides no direct answer to running program context on a suspect host.

D:

The stem asks about running program context on a suspect host; open handles can show files and objects referenced by processes even when directory entries change; the described operation is used for process references to active or unlinked files. Capturing handle-to-process links can preserve a lead before termination; a determination about running program context on a suspect host requires other support.

Question 249

A compromised terminal server has many concurrent sessions that may end within minutes. Which collection targets the transient attribution context?

  1. System time baseline
  2. Logged-on user sessions
  3. Network connection snapshot
  4. Open file handles

Explanation

Correct Answer

B:

Record active sessions, account identities and session identifiers before logout, preserving tool output and time. Current sessions cannot be reliably reconstructed from a future account listing.

Incorrect Answers

A:

The required finding is about users currently authenticated to the system; capture the host clock alongside a trusted reference and observed offset, including timezone; this addresses the separate concern of clock offset at the point of collection. This supports later normalization without rewriting source timestamps; it does not by itself answer users currently authenticated to the system.

C:

For an analysis centered on live association of sockets with processes, capture current network connections with process association using trusted response tools; the present need is users currently authenticated to the system. Historical firewall records may lack the ephemeral local process-to-socket mapping; a different finding about users currently authenticated to the system is still needed.

D:

When the investigative task is process references to active or unlinked files, open handles can show files and objects referenced by processes even when directory entries change; that differs from the question about users currently authenticated to the system. Capturing handle-to-process links can preserve a lead before termination; that leaves users currently authenticated to the system unresolved.

Question 250

Malware may have a deleted executable still open by a live process. Which live artifact is particularly useful?

  1. Logged-on user sessions
  2. RAM-before-reboot decision
  3. Open file handles
  4. Network connection snapshot

Explanation

Correct Answer

C:

Open handles can show files and objects referenced by processes even when directory entries change. Capturing handle-to-process links can preserve a lead before termination.

Incorrect Answers

A:

For the separate question of users currently authenticated to the system, record active sessions, account identities and session identifiers before logout, preserving tool output and time; the requested assessment of process references to active or unlinked files remains open. Current sessions cannot be reliably reconstructed from a future account listing; there is no direct finding about process references to active or unlinked files.

B:

The objective here is process references to active or unlinked files; acquire volatile memory and relevant live state before a reboot when justified and authorized; the option would instead inform volatile process and memory data prior to restart. Restarting normally destroys RAM evidence and alters the execution environment; it is not direct evidence of process references to active or unlinked files.

D:

With process references to active or unlinked files as the investigative issue, capture current network connections with process association using trusted response tools; the result would concern live association of sockets with processes. Historical firewall records may lack the ephemeral local process-to-socket mapping; this would not resolve process references to active or unlinked files.

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