ECCouncil 312-49v11 (Computer Hacking Forensic Investigator) Practice Test 22

Question 210

An older Mac filesystem stores mappings for files and folders in a B-tree-based metadata structure. Which HFS+ artifact is central?

  1. APFS encryption
  2. Mac quarantine attribute
  3. Spotlight metadata index
  4. HFS+ catalog file

Explanation

Correct Answer

D:

The HFS+ catalog maintains file and directory records and their relationships. It is specific to HFS+ and should not be assumed to describe APFS volumes.

Incorrect Answers

A:

A case involving native encryption of a macOS volume might use this approach: APFS supports native volume encryption and cryptographic key management; the required result here is file and folder metadata in a legacy Mac filesystem. A physical block capture can preserve encrypted bytes without revealing their plaintext; it cannot replace proof about file and folder metadata in a legacy Mac filesystem.

B:

The required finding is about file and folder metadata in a legacy Mac filesystem; the com.apple.quarantine extended attribute may record download-origin context used by platform security features; this addresses the separate concern of download-origin labeling on macOS files. Its presence does not prove the file is malicious; it does not by itself answer file and folder metadata in a legacy Mac filesystem.

C:

Although the case asks about file and folder metadata in a legacy Mac filesystem, spotlight indexing stores searchable metadata derived from filesystem content and services; the action instead concerns indexed file attributes and search metadata. Its database can contain leads but may omit unindexed locations or stale entries; it does not establish file and folder metadata in a legacy Mac filesystem.

Question 211

A legacy Mac file has more fragmented runs than its primary metadata record can store. Which HFS+ structure tracks extra allocation extents?

  1. Spotlight metadata index
  2. HFS+ extents overflow
  3. Unified logging
  4. Mac quarantine attribute

Explanation

Correct Answer

B:

The extents overflow B-tree holds additional extent information beyond inline records. It helps reconstruct fragmented file allocation on HFS+ media.

Incorrect Answers

A:

Even though the scenario needs additional HFS+ data extents, spotlight indexing stores searchable metadata derived from filesystem content and services; the action relates to indexed file attributes and search metadata. Its database can contain leads but may omit unindexed locations or stale entries; this remains insufficient for additional HFS+ data extents.

C:

The objective here is additional HFS+ data extents; apple's unified logging collects structured events from system and application components subject to privacy and retention limits; the option would instead inform structured modern macOS system events. Forensic extraction should preserve collection context; it is not direct evidence of additional HFS+ data extents.

D:

For a separate investigation of download-origin labeling on macOS files, the com.apple.quarantine extended attribute may record download-origin context used by platform security features; that is not the determination of additional HFS+ data extents in the stem. Its presence does not prove the file is malicious; the evidence still must speak to additional HFS+ data extents.

Question 212

A downloaded application is tagged as originating from an external source. Which macOS metadata helps indicate that provenance?

  1. HFS+ catalog file
  2. Mac quarantine attribute
  3. FileVault protection
  4. HFS+ extents overflow

Explanation

Correct Answer

B:

The com.apple.quarantine extended attribute may record download-origin context used by platform security features. Its presence does not prove the file is malicious.

Incorrect Answers

A:

Instead of a method addressing download-origin labeling on macOS files, the HFS+ catalog maintains file and directory records and their relationships; this one concerns file and folder metadata in a legacy Mac filesystem. It is specific to HFS+ and should not be assumed to describe APFS volumes; it cannot independently determine download-origin labeling on macOS files.

C:

A case involving full-disk confidentiality on a Mac might use this approach: fileVault protects macOS data at rest using disk encryption integrated with platform security; the required result here is download-origin labeling on macOS files. Booting into another environment does not automatically bypass protected storage; it cannot replace proof about download-origin labeling on macOS files.

D:

The required finding is about download-origin labeling on macOS files; the extents overflow B-tree holds additional extent information beyond inline records; this addresses the separate concern of additional HFS+ data extents. It helps reconstruct fragmented file allocation on HFS+ media; it does not by itself answer download-origin labeling on macOS files.

Question 213

Investigators need indexed document attributes and search-related metadata from a Mac disk. Which subsystem is relevant?

  1. Unified logging
  2. Spotlight metadata index
  3. HFS+ catalog file
  4. APFS encryption

Explanation

Correct Answer

B:

Spotlight indexing stores searchable metadata derived from filesystem content and services. Its database can contain leads but may omit unindexed locations or stale entries.

Incorrect Answers

A:

The current inquiry asks about indexed file attributes and search metadata; apple's unified logging collects structured events from system and application components subject to privacy and retention limits; this mechanism chiefly addresses structured modern macOS system events. Forensic extraction should preserve collection context; it cannot prove indexed file attributes and search metadata on its own.

C:

Even though the scenario needs indexed file attributes and search metadata, the HFS+ catalog maintains file and directory records and their relationships; the action relates to file and folder metadata in a legacy Mac filesystem. It is specific to HFS+ and should not be assumed to describe APFS volumes; this remains insufficient for indexed file attributes and search metadata.

D:

For the separate question of native encryption of a macOS volume, APFS supports native volume encryption and cryptographic key management; the requested assessment of indexed file attributes and search metadata remains open. A physical block capture can preserve encrypted bytes without revealing their plaintext; there is no direct finding about indexed file attributes and search metadata.

Question 214

A contemporary Mac's system events must be reconstructed from structured logs rather than only legacy plaintext files. Which logging framework is important?

  1. HFS+ catalog file
  2. Mac quarantine attribute
  3. Unified logging
  4. HFS+ extents overflow

Explanation

Correct Answer

C:

Apple's unified logging collects structured events from system and application components subject to privacy and retention limits. Forensic extraction should preserve collection context.

Incorrect Answers

A:

For questions about file and folder metadata in a legacy Mac filesystem, the HFS+ catalog maintains file and directory records and their relationships; that differs from structured modern macOS system events. It is specific to HFS+ and should not be assumed to describe APFS volumes; it provides no direct answer to structured modern macOS system events.

B:

The stem asks about structured modern macOS system events; the com.apple.quarantine extended attribute may record download-origin context used by platform security features; the described operation is used for download-origin labeling on macOS files. Its presence does not prove the file is malicious; a determination about structured modern macOS system events requires other support.

D:

In work concerning additional HFS+ data extents, the extents overflow B-tree holds additional extent information beyond inline records; the operation would not resolve structured modern macOS system events. It helps reconstruct fragmented file allocation on HFS+ media; the distinction leaves structured modern macOS system events unsettled.

Question 215

A powered-off Mac uses full-disk protection and will not reveal user data without authorized unlocking material. Which feature creates this constraint?

  1. FileVault protection
  2. APFS space sharing
  3. APFS clone
  4. Spotlight metadata index

Explanation

Correct Answer

A:

FileVault protects macOS data at rest using disk encryption integrated with platform security. Booting into another environment does not automatically bypass protected storage.

Incorrect Answers

B:

When the investigative task is flexible storage allocation among APFS volumes, space sharing allows volumes in a container to draw from common free capacity, subject to quotas or reserves when configured; that differs from the question about full-disk confidentiality on a Mac. It affects storage interpretation during acquisition; that leaves full-disk confidentiality on a Mac unresolved.

C:

The current inquiry asks about full-disk confidentiality on a Mac; APFS clones use copy-on-write sharing until modified blocks diverge; this mechanism chiefly addresses copy-on-write file sharing. Shared initial extents do not mean the files remain logically linked after edits; it cannot prove full-disk confidentiality on a Mac on its own.

D:

In an inquiry concerning indexed file attributes and search metadata, spotlight indexing stores searchable metadata derived from filesystem content and services; the scope does not extend to full-disk confidentiality on a Mac. Its database can contain leads but may omit unindexed locations or stale entries; that issue cannot settle full-disk confidentiality on a Mac.

Question 216

A two-disk array offers performance but failure of either drive destroys the usable set. Which layout causes this risk?

  1. RAID 5 parity
  2. NAS file access
  3. SAN block access
  4. RAID 0 striping

Explanation

Correct Answer

D:

RAID 0 stripes blocks across members without redundancy. Forensic reconstruction requires the correct disk order and stripe parameters.

Incorrect Answers

A:

For a separate investigation of single-disk fault tolerance using distributed parity, RAID 5 stripes data with rotating parity across members; that is not the determination of nonredundant block striping across drives in the stem. Reconstruction depends on disk order, stripe size and parity layout; the evidence still must speak to nonredundant block striping across drives.

B:

With nonredundant block striping across drives as the investigative issue, network-attached storage provides file-level access over protocols such as SMB or NFS; the result would concern file-based storage shared across a network. A share-level copy may not expose underlying disk allocation or controller metadata; this would not resolve nonredundant block striping across drives.

C:

For questions about remote block devices presented to a host, a storage area network exposes block-level volumes to hosts; that differs from nonredundant block striping across drives. Investigators still need storage-fabric and snapshot context to map a LUN to backend disks; it provides no direct answer to nonredundant block striping across drives.

Question 217

A server stores duplicate block data on two array members and one disk fails without immediate data loss. Which layout fits?

  1. RAID 6 dual parity
  2. RAID 10 mirrors and stripes
  3. RAID 0 striping
  4. RAID 1 mirroring

Explanation

Correct Answer

D:

RAID 1 maintains mirrored copies, subject to controller behavior and replication timing. Individual member acquisition may still require attention to consistency.

Incorrect Answers

A:

The required finding is about duplicate block copies across array members; RAID 6 uses dual distributed parity and can typically tolerate two disk failures; this addresses the separate concern of double-parity fault tolerance. It needs enough members and correct array metadata for reconstruction; it does not by itself answer duplicate block copies across array members.

B:

Although the case asks about duplicate block copies across array members, RAID 10 stripes across mirrors, offering performance and redundancy with failure tolerance dependent on which disks fail; the action instead concerns striping across mirrored disk sets. It is not equivalent to a parity-only array; it does not establish duplicate block copies across array members.

C:

For an analysis centered on nonredundant block striping across drives, RAID 0 stripes blocks across members without redundancy; the present need is duplicate block copies across array members. Forensic reconstruction requires the correct disk order and stripe parameters; a different finding about duplicate block copies across array members is still needed.

Question 218

A three-or-more-disk array tolerates one member failure using distributed parity. Which level is likely?

  1. Unallocated-space scanning
  2. RAID 5 parity
  3. RAID 1 mirroring
  4. SAN block access

Explanation

Correct Answer

B:

RAID 5 stripes data with rotating parity across members. Reconstruction depends on disk order, stripe size and parity layout.

Incorrect Answers

A:

For the separate question of data outside currently allocated file extents, unallocated space contains clusters or blocks not presently assigned to live files, possibly including deleted remnants; the requested assessment of single-disk fault tolerance using distributed parity remains open. Its contents can be overwritten at any time and may not have reliable ownership metadata; there is no direct finding about single-disk fault tolerance using distributed parity.

C:

For a separate investigation of duplicate block copies across array members, RAID 1 maintains mirrored copies, subject to controller behavior and replication timing; that is not the determination of single-disk fault tolerance using distributed parity in the stem. Individual member acquisition may still require attention to consistency; the evidence still must speak to single-disk fault tolerance using distributed parity.

D:

With single-disk fault tolerance using distributed parity as the investigative issue, a storage area network exposes block-level volumes to hosts; the result would concern remote block devices presented to a host. Investigators still need storage-fabric and snapshot context to map a LUN to backend disks; this would not resolve single-disk fault tolerance using distributed parity.

Question 219

A storage array remains recoverable when two members fail, provided no further loss occurs. Which redundancy model supports this?

  1. RAID 10 mirrors and stripes
  2. RAID 1 mirroring
  3. RAID 6 dual parity
  4. Fragment-aware carving

Explanation

Correct Answer

C:

RAID 6 uses dual distributed parity and can typically tolerate two disk failures. It needs enough members and correct array metadata for reconstruction.

Incorrect Answers

A:

In work concerning striping across mirrored disk sets, RAID 10 stripes across mirrors, offering performance and redundancy with failure tolerance dependent on which disks fail; the operation would not resolve double-parity fault tolerance. It is not equivalent to a parity-only array; the distinction leaves double-parity fault tolerance unsettled.

B:

A case involving duplicate block copies across array members might use this approach: RAID 1 maintains mirrored copies, subject to controller behavior and replication timing; the required result here is double-parity fault tolerance. Individual member acquisition may still require attention to consistency; it cannot replace proof about double-parity fault tolerance.

D:

Although the case asks about double-parity fault tolerance, fragment-aware carving attempts to reassemble discontinuous file pieces using format structure and heuristics; the action instead concerns recovering files scattered among separated block runs. It is harder and less certain than recovering contiguous content; it does not establish double-parity fault tolerance.

Question 220

A database array combines striped performance with mirrored member pairs. Which level is appropriate?

  1. Fragment-aware carving
  2. RAID 10 mirrors and stripes
  3. NAS file access
  4. RAID 0 striping

Explanation

Correct Answer

B:

RAID 10 stripes across mirrors, offering performance and redundancy with failure tolerance dependent on which disks fail. It is not equivalent to a parity-only array.

Incorrect Answers

A:

In an inquiry concerning recovering files scattered among separated block runs, fragment-aware carving attempts to reassemble discontinuous file pieces using format structure and heuristics; the scope does not extend to striping across mirrored disk sets. It is harder and less certain than recovering contiguous content; that issue cannot settle striping across mirrored disk sets.

C:

For the separate question of file-based storage shared across a network, network-attached storage provides file-level access over protocols such as SMB or NFS; the requested assessment of striping across mirrored disk sets remains open. A share-level copy may not expose underlying disk allocation or controller metadata; there is no direct finding about striping across mirrored disk sets.

D:

The objective here is striping across mirrored disk sets; RAID 0 stripes blocks across members without redundancy; the option would instead inform nonredundant block striping across drives. Forensic reconstruction requires the correct disk order and stripe parameters; it is not direct evidence of striping across mirrored disk sets.

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