1What is the primary definition of computer forensics?
A.The process of hacking into computer systems to test security
B.The application of computer investigation and analysis techniques in the interest of determining potential legal evidence
C.The repair of damaged computer hardware to recover lost data
D.The monitoring of network traffic for marketing purposes
Correct Answer: The application of computer investigation and analysis techniques in the interest of determining potential legal evidence
Explanation:Computer forensics involves applying scientific methods to collect, validate, and analyze digital evidence for use in a court of law.
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2Which legal principle states that evidence must be gathered in a way that allows the court to verify its origin and integrity?
A.Hearsay Rule
B.Chain of Custody
C.Miranda Rights
D.Double Jeopardy
Correct Answer: Chain of Custody
Explanation:Chain of Custody is the documentation that records the sequence of custody, control, transfer, analysis, and disposition of physical or electronic evidence.
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3In the context of cybercrimes, what distinguishes a 'computer as a target' crime from a 'computer as a tool' crime?
B.Target crimes attack the system's integrity (e.g., DDoS); tool crimes use the computer to commit other offenses (e.g., fraud)
C.Target crimes are civil; tool crimes are criminal
D.There is no difference; they are legal synonyms
Correct Answer: Target crimes attack the system's integrity (e.g., DDoS); tool crimes use the computer to commit other offenses (e.g., fraud)
Explanation:When the computer is the target, the attack is against the machine itself (denial of service, virus). When it is a tool, it facilitates traditional crimes like fraud or harassment.
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4Which of the following best describes 'Forensic Readiness'?
A.The ability of an organization to maximize its potential to use digital evidence while minimizing the costs of an investigation
B.The process of training all employees to be forensic investigators
C.Buying the most expensive forensic software available
D.Keeping all servers offline to prevent attacks
Correct Answer: The ability of an organization to maximize its potential to use digital evidence while minimizing the costs of an investigation
Explanation:Forensic readiness is a proactive approach to planning and preparation that ensures an organization is ready to handle an incident and collect evidence efficiently.
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5What is the primary role of a Security Operations Center (SOC) in relation to computer forensics?
A.To conduct full legal prosecutions
B.To write legislation regarding cybercrime
C.To monitor, detect, and respond to security incidents, often providing the initial data for forensic analysis
D.To repair broken hardware in the office
Correct Answer: To monitor, detect, and respond to security incidents, often providing the initial data for forensic analysis
Explanation:The SOC monitors for alerts and incidents. When an incident occurs, they contain it and preserve logs/data that forensic investigators later analyze.
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6According to the Order of Volatility, which data should be collected first?
A.Archival media (Backup tapes)
B.Hard disk drive data
C.CPU registers and cache
D.Temporary file systems
Correct Answer: CPU registers and cache
Explanation:Registers and cache are the most volatile and are lost immediately upon power loss, so they must be collected first, followed by RAM, then disk data.
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7What is the primary purpose of a hardware Write Blocker?
A.To speed up the data transfer process
B.To encrypt the data being copied
C.To prevent the forensic workstation from modifying data on the suspect drive
D.To compress the evidence files
Correct Answer: To prevent the forensic workstation from modifying data on the suspect drive
Explanation:A write blocker ensures that the evidence drive is read-only, maintaining data integrity by preventing the operating system from altering metadata or files.
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8What does Locard's Exchange Principle state in the context of digital forensics?
A.Data can never be fully deleted
B.Anyone entering a digital scene leaves a trace, and takes something with them
C.Encryption is impossible to break without a key
D.All evidence must be printed on paper
Correct Answer: Anyone entering a digital scene leaves a trace, and takes something with them
Explanation:Locard's Principle implies that the perpetrator of a cybercrime will leave digital artifacts (logs, registry changes) behind and may take data with them.
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9Which phase of the investigation involves obtaining a search warrant?
A.Post-investigation Phase
B.Analysis Phase
C.Pre-investigation Phase
D.Reporting Phase
Correct Answer: Pre-investigation Phase
Explanation:Legal authorization, such as search warrants or consent, must be obtained during the pre-investigation planning phase before searching or seizing evidence.
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10What is a 'Bit-stream image'?
A.A copy of only the active files on a disk
B.A sector-by-sector copy of the hard drive, including hidden and deleted data
C.A screenshot of the desktop
D.A compressed zip folder of the My Documents folder
Correct Answer: A sector-by-sector copy of the hard drive, including hidden and deleted data
Explanation:A bit-stream image (or forensic image) is an exact bit-for-bit clone of the drive, ensuring that slack space, unallocated space, and deleted files are preserved.
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11Who is typically the 'First Responder' in a computer forensic scenario?
A.The lead judge on the case
B.The suspect
C.The first person to arrive at the crime scene and assess the situation
D.The CEO of the company
Correct Answer: The first person to arrive at the crime scene and assess the situation
Explanation:The first responder is the individual responsible for securing the scene, protecting evidence from contamination, and initiating the incident response process.
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12What is the cardinal rule of computer forensics regarding original evidence?
A.Always work on the original evidence to save time
B.Never work on the original evidence; always work on a forensic copy
C.Modify the original evidence to fix security holes
D.Send the original evidence to the suspect for verification
Correct Answer: Never work on the original evidence; always work on a forensic copy
Explanation:To prevent accidental alteration or damage, investigators must create a verified copy (image) and perform analysis on the copy, preserving the original.
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13What is the function of a cryptographic hash (like MD5 or SHA-256) in forensics?
A.To encrypt the drive so no one can read it
B.To act as a digital fingerprint to verify data integrity
C.To formatting the drive for reuse
D.To organize files alphabetically
Correct Answer: To act as a digital fingerprint to verify data integrity
Explanation:Hashing generates a unique alphanumeric string for a dataset. If the hash of the original matches the hash of the image, it proves the evidence has not been altered.
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14Which of the following is a characteristic of 'Civil' investigations compared to 'Criminal' ones?
A.They are always conducted by law enforcement
B.The standard of proof is 'Beyond a reasonable doubt'
C.They typically involve disputes between individuals or companies regarding contracts or intellectual property
D.They result in jail time for the offender
Correct Answer: They typically involve disputes between individuals or companies regarding contracts or intellectual property
Explanation:Civil investigations handle private disputes (torts, contracts) where the penalty is usually monetary, unlike criminal cases which involve law enforcement and potential imprisonment.
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15What is 'Slack Space'?
A.The space on a desk where the computer sits
B.The unused space in a disk cluster when a file does not fill the entire cluster
C.The space taken up by the operating system
D.The RAM memory used by the web browser
Correct Answer: The unused space in a disk cluster when a file does not fill the entire cluster
Explanation:Slack space is the remnant data at the end of a file cluster. It can contain fragments of previously deleted files and is a key area for forensic analysis.
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16In the context of First Response, what should be done if a computer is found powered OFF?
A.Turn it on to see what is on the screen
B.Turn it on to install forensic software
C.Leave it off and secure it
D.Turn it on and immediately copy the My Documents folder
Correct Answer: Leave it off and secure it
Explanation:If a machine is off, turning it on alters the system state (logs, timestamps, temp files). It should remain off until a forensic image can be made.
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17What is the primary responsibility of a Forensic Investigator regarding bias?
A.To prove the suspect is guilty at all costs
B.To prove the suspect is innocent
C.To remain objective and report facts regardless of whom they help or hurt
D.To support the client who is paying them
Correct Answer: To remain objective and report facts regardless of whom they help or hurt
Explanation:A forensic investigator must be unbiased and objective, presenting the truth found in the data, not advocating for a specific side.
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18What defines 'Digital Evidence'?
A.Any printed document found near a computer
B.Information of probative value that is stored or transmitted in binary form
C.The physical hardware of a laptop only
D.Verbal testimony given by a computer user
Correct Answer: Information of probative value that is stored or transmitted in binary form
Explanation:Digital evidence is data stored or transmitted electronically (binary form) that can support or refute a theory of how an offense occurred.
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19Which of the following is considered 'Volatile Memory'?
A.CD-ROM
B.USB Flash Drive
C.RAM (Random Access Memory)
D.Hard Disk Drive
Correct Answer: RAM (Random Access Memory)
Explanation:RAM is volatile because its contents are lost when power is cut to the system, unlike non-volatile storage like Hard Drives or USBs.
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20What is the purpose of 'Bag and Tag'?
A.To sell the computer equipment
B.To organize cables neatly
C.To identifying, seizing, and securing evidence in appropriate containers to preserve integrity
D.To throw away useless hardware
Correct Answer: To identifying, seizing, and securing evidence in appropriate containers to preserve integrity
Explanation:Bag and Tag is the physical process of securing evidence in anti-static bags, labeling it with details (time, date, investigator), and starting the chain of custody.
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21What is the difference between Incident Response (IR) and Computer Forensics?
A.IR focuses on containment and recovery; Forensics focuses on analysis and legal evidence
B.IR happens in court; Forensics happens in the lab
C.IR is for hardware; Forensics is for software
D.There is no difference
Correct Answer: IR focuses on containment and recovery; Forensics focuses on analysis and legal evidence
Explanation:IR is the immediate action to stop a breach and restore services. Forensics is the deep dive investigation to understand the root cause and gather evidence for legal proceedings.
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22Which tool is used to block radio signals from reaching a mobile device after seizure?
A.Write Blocker
B.Faraday Bag
C.Anti-static wrist strap
D.Hashing Algorithm
Correct Answer: Faraday Bag
Explanation:A Faraday bag shields devices from external electromagnetic fields, preventing remote wiping or alteration of data via cellular/WiFi networks.
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23What is 'Steganography'?
A.The study of dinosaur bones
B.The practice of hiding data within other files (like images or audio)
C.A type of computer virus
D.The process of deleting files permanently
Correct Answer: The practice of hiding data within other files (like images or audio)
Explanation:Steganography is the art of hiding information in plain sight, such as embedding a secret text file inside a JPEG image.
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24During the Pre-investigation phase, what is the importance of risk assessment?
A.To determine how much to charge the client
B.To identify potential hazards (biological, electrical, chemical) at the crime scene
C.To guess who the suspect is
D.To check the weather forecast
Correct Answer: To identify potential hazards (biological, electrical, chemical) at the crime scene
Explanation:Risk assessment ensures the physical safety of the investigation team before they enter a potentially dangerous location.
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25What is 'Live Acquisition'?
A.Acquiring data from a computer that is powered on and running
B.Acquiring data from a dead drive
C.Streaming the investigation on social media
D.Interviewing a suspect live
Correct Answer: Acquiring data from a computer that is powered on and running
Explanation:Live acquisition involves collecting data (especially RAM and active processes) from a running system before powering it down.
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26Which file system artifact allows an investigator to see which programs were recently executed?
A.The Recycle Bin
B.Prefetch Files
C.The Printer Spool
D.The Hosts file
Correct Answer: Prefetch Files
Explanation:In Windows, Prefetch files are created to speed up application startup, but they also serve as excellent evidence of which programs were run and when.
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27What is the 'Best Evidence Rule'?
A.The most expensive evidence is the best
B.Courts prefer the original evidence (or an accurate duplicate) rather than a copy or oral testimony
C.Evidence found by the police is always best
D.Evidence found on a server is better than a laptop
Correct Answer: Courts prefer the original evidence (or an accurate duplicate) rather than a copy or oral testimony
Explanation:The Best Evidence Rule requires the production of the original document or recording. In digital forensics, a verified bit-stream image is legally accepted as the 'original'.
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28What is the final phase of the Computer Forensics Investigation Process?
A.Acquisition
B.Analysis
C.Reporting
D.Identification
Correct Answer: Reporting
Explanation:After analyzing the data, the investigator must document the findings, methods, and conclusions in a formal report for the stakeholders or court.
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29Why is 'documentation' critical throughout the investigation process?
A.To increase the billable hours
B.To ensure the investigation can be repeated and validated by a third party
C.To improve typing speed
D.To share with the press
Correct Answer: To ensure the investigation can be repeated and validated by a third party
Explanation:Detailed documentation allows another expert to reproduce the steps and verify the results, which is essential for the evidence to be admissible in court.
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30What does a SIEM (Security Information and Event Management) system do in a SOC?
A.It is used to physically lock doors
B.It aggregates and analyzes log data from various sources to detect security threats
C.It acts as a backup generator
D.It is an email client
Correct Answer: It aggregates and analyzes log data from various sources to detect security threats
Explanation:SIEM tools collect logs from firewalls, servers, and PCs, correlating them to identify patterns indicating a cyberattack.
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31Which of the following is an example of 'Metadata'?
A.The text content of a Word document
B.The date created, date modified, and author of a file
C.The pixels in an image
D.The sound waves in an MP3
Correct Answer: The date created, date modified, and author of a file
Explanation:Metadata is 'data about data'. It describes the properties of a file rather than the content itself.
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32When photographing a crime scene, what is the best practice?
A.Take one photo of the room and leave
B.Photograph the computer screen only
C.Take photos of the entire scene, including connections, cable positions, and serial numbers
D.Selfies with the evidence
Correct Answer: Take photos of the entire scene, including connections, cable positions, and serial numbers
Explanation:Comprehensive photography documents the state of the scene before anything is touched, preserving context and proof of cable configurations.
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33What is 'Anti-forensics'?
A.The study of law
B.Tools or techniques used to frustrate or prevent forensic analysis (e.g., data wiping, encryption)
C.A group of people against technology
D.Old school investigation methods
Correct Answer: Tools or techniques used to frustrate or prevent forensic analysis (e.g., data wiping, encryption)
Explanation:Anti-forensics involves methods used by criminals to hide data, delete evidence, or make the forensic investigator's job difficult or impossible.
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34In a criminal investigation, who carries the 'Burden of Proof'?
A.The Defense
B.The Suspect
C.The Prosecution
D.The Jury
Correct Answer: The Prosecution
Explanation:In criminal cases, the prosecution must prove the defendant's guilt beyond a reasonable doubt.
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35What is the definition of 'Unallocated Space'?
A.Disk space that is currently not flagged as in use by the file system, but may contain deleted data
B.Space on the hard drive that has never been used
C.The space occupied by the Operating System
D.Broken sectors on a hard drive
Correct Answer: Disk space that is currently not flagged as in use by the file system, but may contain deleted data
Explanation:When a file is 'deleted', the system marks the space as available (unallocated). The data remains there until overwritten, making it a source of evidence.
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36Which organization typically creates the 'Search Warrant'?
A.The Forensic Investigator
B.The Internet Service Provider
C.Law Enforcement / The Court
D.The Victim
Correct Answer: Law Enforcement / The Court
Explanation:Search warrants are legal orders issued by a magistrate or judge authorizing law enforcement to search a specific location.
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37What is the primary risk of pulling the plug (abrupt shutdown) on a server?
A.It saves too much data
B.It might corrupt the file system and result in loss of volatile data (RAM)
C.It uses too much electricity
D.It alerts the hacker
Correct Answer: It might corrupt the file system and result in loss of volatile data (RAM)
Explanation:While pulling the plug prevents remote wiping, it destroys RAM evidence and can corrupt active databases or file systems.
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38What role does an 'Expert Witness' play in court?
A.They decide the verdict
B.They assist the judge/jury in understanding complex technical evidence through their specialized knowledge
C.They defend the accused
D.They prosecute the accused
Correct Answer: They assist the judge/jury in understanding complex technical evidence through their specialized knowledge
Explanation:An expert witness is allowed to give opinions based on their technical expertise to help the court understand the significance of digital evidence.
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39Which of the following is a key component of a Forensic Report?
A.Personal opinions about the suspect's character
B.Executive Summary, Methodology, Findings, and Conclusion
C.Marketing material for the forensic firm
D.A list of the investigator's favorite software
Correct Answer: Executive Summary, Methodology, Findings, and Conclusion
Explanation:A professional report must be structured, factual, and include a summary for non-technical readers as well as detailed technical findings.
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40What is 'Data Wiping'?
A.Cleaning the computer screen with a cloth
B.Overwriting data multiple times to make it unrecoverable
C.Deleting a file to the Recycle Bin
D.Formatting a disk
Correct Answer: Overwriting data multiple times to make it unrecoverable
Explanation:Wiping involves overwriting sectors with random characters or zeros, making forensic recovery of previous data impossible.
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41What is the role of the 'Evidence Custodian'?
A.To analyze the evidence
B.To arrest the suspect
C.To manage the secure storage and log the entry/exit of evidence in the storage facility
D.To repair the evidence
Correct Answer: To manage the secure storage and log the entry/exit of evidence in the storage facility
Explanation:The Evidence Custodian ensures that evidence is stored securely and that the Chain of Custody is maintained while items are in storage.
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42Why is 'Timeline Analysis' important?
A.It tells the investigator when to take a lunch break
B.It reconstructs events in chronological order to understand the sequence of the attack
C.It sorts files by file size
D.It predicts future crimes
Correct Answer: It reconstructs events in chronological order to understand the sequence of the attack
Explanation:Timeline analysis correlates timestamps from file systems, logs, and artifacts to tell the story of what happened and when.
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43What is the difference between 'Static' and 'Dynamic' analysis?
A.Static analyzes the system at rest (off); Dynamic analyzes the system while running (behavior)
B.Static is fast; Dynamic is slow
C.Static is for Windows; Dynamic is for Linux
D.Static uses electricity; Dynamic does not
Correct Answer: Static analyzes the system at rest (off); Dynamic analyzes the system while running (behavior)
Explanation:Static analysis looks at files on a drive image. Dynamic analysis involves running malware or programs in a sandbox to observe their behavior.
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44Which of the following describes an 'Internal Threat'?
A.A hacker from another country
B.A disgruntled employee misusing their access privileges
C.A lightning strike
D.A virus from a website
Correct Answer: A disgruntled employee misusing their access privileges
Explanation:Internal threats come from authorized users (employees, contractors) who exploit their legitimate access for malicious purposes.
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45What is 'Logical Acquisition'?
A.Copying the entire physical drive bit-by-bit
B.Extracting specific files and objects (like photos or chats) accessible by the file system
C.Guessing the password logically
D.Drawing a picture of the drive
Correct Answer: Extracting specific files and objects (like photos or chats) accessible by the file system
Explanation:Logical acquisition grabs visible files and data structures but typically misses deleted data in unallocated space, unlike physical acquisition.
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46In the context of SOC, what is 'Triage'?
A.Fixing the computer completely
B.The initial assessment to prioritize incidents based on severity and potential impact
C.Deleting all infected files immediately
D.Calling the police
Correct Answer: The initial assessment to prioritize incidents based on severity and potential impact
Explanation:Triage allows the SOC to categorize incidents to ensure critical threats are handled first and resources are allocated effectively.
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47What should an investigator do if they accidentally alter the evidence?
A.Hide the mistake
B.Document the alteration and explain how and why it happened
C.Quit the investigation
D.Blame the software
Correct Answer: Document the alteration and explain how and why it happened
Explanation:Transparency is key. If evidence is altered, it must be documented so the court can decide if the remaining integrity is sufficient.
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48What does the term 'Admissibility' refer to?
A.Whether the investigator is hired
B.Whether the evidence meets legal standards to be presented in court
C.The cost of the investigation
D.The speed of the computer
Correct Answer: Whether the evidence meets legal standards to be presented in court
Explanation:Admissibility is determined by the judge based on relevance, authenticity, and adherence to legal procedures (like warrants and chain of custody).
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49Which is a common challenge in Cloud Forensics compared to traditional Computer Forensics?
A.Cloud computers are too slow
B.Physical access to the storage hardware is often impossible or restricted
C.Cloud data is always unencrypted
D.There is no difference
Correct Answer: Physical access to the storage hardware is often impossible or restricted
Explanation:In the cloud, data is stored on remote, shared servers owned by third parties, making physical seizure of the drive difficult or impossible.
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50What is the purpose of 'Keyword Searching' in the Analysis phase?
A.To find the investigator's keys
B.To locate specific terms (e.g., names, credit card numbers) within the massive amount of data
C.To unlock encrypted files
D.To rename files
Correct Answer: To locate specific terms (e.g., names, credit card numbers) within the massive amount of data
Explanation:Keyword searching allows investigators to filter terabytes of data to find relevant documents, chats, or fragments containing specific terms.
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