Security

442 soru

Soru 241Soru

A technician has finished removing malware from a corporate desktop, scheduled routine anti-malware scans, and created a new System Restore point. Which of the following actions represents the final step in the standard CompTIA malware remediation workflow?

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Cevap: Educate the end user on safe computing practices and how to avoid future infections.

Cevap

Educate the end user on safe computing practices and how to avoid future infections.
The correct action is educating the end user. Following the official CompTIA 7-step malware remediation process (Identify, Quarantine, Disable System Restore, Remediate, Schedule updates/scans, Enable System Restore/Create restore point, Educate user), educating the user is the final step to ensure long-term system protection and prevent re-infection.

Adım Adım Çözüm

1
Review the CompTIA 7-step malware removal procedure sequence.
The steps in order are: 1. Identify malware symptoms, 2. Quarantine infected systems, 3. Disable System Restore, 4. Remediate infected systems, 5. Schedule scans and update definitions, 6. Enable System Restore and create a restore point, 7. Educate the end user.
Memorizing the precise sequence allows technicians to correctly identify missing or completed remediation milestones.
2
Evaluate the current progress given in the scenario.
The scenario states that malware has been removed (Step 4), scans scheduled (Step 5), and a restore point created (Step 6).
Identifying the current stage pinpoints what remains to be completed.
3
Determine the remaining step.
The only remaining step in the official 7-step workflow is Step 7: Educating the end user.
User training prevents re-infection and completes the remediation process.

Anahtar Kavram

CompTIA 7-Step Malware Remediation Process - Step 7: End-User Education
Soru 242Soru

An enterprise technician is tasked with decommissioning a hybrid storage array containing both SATA Solid-State Drives (SSDs) and SAS Magnetic Hard Disk Drives (HDDs) that store sensitive financial data. According to NIST SP 800-88 guidelines, the media must undergo sanitization to the 'Purge' standard to prevent data recovery via advanced laboratory techniques. Additionally, corporate policy mandates that all storage media must remain physically operational after sanitization so they can be resold to a third-party vendor. Which of the following procedures correctly complies with these requirements for both drive types?

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Cevap: Issue an ATA/NVMe Secure Erase or Cryptographic Erase command to the SSDs, and execute an ATA Sanitize firmware command on the magnetic HDDs.

Cevap

Issue an ATA/NVMe Secure Erase or Cryptographic Erase command to the SSDs, and execute an ATA Sanitize firmware command on the magnetic HDDs.
Issuing hardware firmware commands (ATA/NVMe Secure Erase or Cryptographic Erase for SSDs, and ATA Sanitize for HDDs) purges all physical storage areas—including hidden, reallocated, and wear-leveled sectors—meeting NIST SP 800-88 Purge requirements without damaging internal drive components needed for subsequent resale.

Adım Adım Çözüm

1
Analyze media types and sanitization objectives.
The target array contains solid-state drives (SSDs) and magnetic hard disk drives (HDDs) requiring NIST 800-88 'Purge' sanitization, with the operational constraint that drives must remain functional for resale.
Purge-level sanitization protects against forensic laboratory extraction while maintaining hardware usability when physical destruction is explicitly ruled out.
2
Evaluate sanitization methods for solid-state drives (SSDs).
SSDs require hardware-based commands like ATA/NVMe Secure Erase or Cryptographic Erase because magnetic degaussing does not affect NAND flash cells, and software overwrites fail to target over-provisioned or wear-leveled blocks.
Firmware commands instruct the internal SSD controller to reset flash cells or delete encryption keys across the entire physical media.
3
Evaluate sanitization methods for magnetic hard disk drives (HDDs) under resale constraints.
HDDs require firmware-level commands such as ATA Sanitize (Overwrite or Crypto Erase). Degaussing must be avoided because it permanently ruins the factory-written servo tracks, making the drive unusable.
ATA Sanitize overwrites or cryptographically purges all magnetic media sectors while preserving the drive's mechanical functionality and track alignment.

Anahtar Kavram

NIST SP 800-88 Data Sanitization (Purge vs. Destroy and Media Specificity)
Soru 243Soru

A network technician is configuring wireless access for a medical clinic's administrative staff. Management specifies that all employees must authenticate using their individual corporate domain credentials rather than sharing a single passphrase, and that wireless traffic must be protected with strong AES encryption. Which of the following wireless security configurations best satisfies these requirements?

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Cevap: WPA3-Enterprise utilizing 802.1X and a RADIUS server

Cevap

WPA3-Enterprise utilizing 802.1X and a RADIUS server
WPA3-Enterprise uses IEEE 802.1X port-based network access control combined with a RADIUS server. This setup allows each user to authenticate with their unique enterprise domain username and password while delivering high-grade cryptographic protection.

Adım Adım Çözüm

1
Identify the authentication requirement
Individual user authentication via corporate credentials requires Enterprise mode (802.1X / RADIUS), eliminating Personal (PSK/SAE) modes.
Personal modes rely on a single shared passphrase across all clients.
2
Identify the encryption requirement
Strong encryption requires modern WPA2 or WPA3 standards rather than deprecated protocols like WEP.
WEP uses weak RC4 encryption that can be compromised within minutes.
3
Select the optimal configuration
WPA3-Enterprise provides both centralized 802.1X user authentication via RADIUS and state-of-the-art encryption.
It fulfills all requirements for security, encryption strength, and individual accountability.

Anahtar Kavram

Distinction between WPA Personal (PSK/SAE) and WPA Enterprise (802.1X/RADIUS) modes for wireless security.
Tahmini Süre:1m 15s
Soru 244Soru

A systems administrator is configuring local security policies on a shared Windows workstation deployed in an unmonitored kiosk area. The system must allow users to interact with a web portal while preventing automatic execution of untrusted scripts from inserted removable media, mitigating credential harvesting through legacy name resolution fallback protocols, and minimizing the overall local attack surface. Which of the following sets of hardening measures best achieves these security objectives?

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Cevap: Disable LLMNR and NBT-NS protocols, enforce Group Policy settings to disable AutoRun and AutoPlay across all drives, apply AppLocker or Software Restriction Policies, and disable the built-in Guest and local Administrator accounts.

Cevap

Disabling LLMNR/NBT-NS protocols, enforcing Group Policy to disable AutoRun and AutoPlay across all drives, applying Software Restriction Policies or AppLocker, and disabling default local accounts represents the optimal combination of workstation hardening controls.
The correct response combines essential operating system hardening controls: turning off legacy resolution protocols (LLMNR/NBT-NS) prevents network credential interception, disabling AutoRun/AutoPlay stops untrusted media from automatically executing payloads, enforcing AppLocker/SRP ensures only approved applications can run, and disabling built-in accounts minimizes local entry points.

Adım Adım Çözüm

1
Analyze the technical requirements of the scenario.
Identified key requirements: mitigate script execution from USB drives, prevent legacy protocol poisoning, prevent unauthorized execution, and reduce local account vulnerability.
Hardening requires selecting controls that directly map to identified threat vectors.
2
Evaluate protocol-level and service-level hardening measures.
Disabling LLMNR (Link-Local Multicast Name Resolution) and NBT-NS (NetBIOS Name Service) mitigates local network spoofing and hash-harvesting attacks.
Legacy fallback protocols broadcast requests in cleartext and are frequently exploited by attackers on local segments.
3
Evaluate media auto-execution and application execution control measures.
Disabling AutoRun/AutoPlay via Group Policy stops payload delivery upon drive insertion, while AppLocker restricts binary execution to authorized paths and hashes.
Default OS behaviors often allow automatic content indexing or execution from external mass storage devices.
4
Evaluate account hardening policies.
Disabling built-in Guest and local Administrator accounts restricts privilege escalation pathways.
Default accounts have well-known SID patterns and provide prime targets for brute-force attacks.

Anahtar Kavram

Workstation Hardening and Defense-in-Depth Configuration
Soru 245Soru

An IT support technician receives multiple tickets from accounting department staff members who report being directed to a suspicious web page when attempting to access the official corporate portal at `https://ledger.company.com`. The technician verifies that users entered the exact, correct web address into their browser address bars. Further investigation reveals that local hosts files are intact, but an attacker successfully compromised local DNS server records to point the corporate portal domain name to an external malicious server. Which of the following threat types best describes this attack?

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Cevap: Pharming

Cevap

Pharming is the correct answer because it involves manipulating DNS records or system host files to silently redirect requests for legitimate web addresses to malicious destinations.
The correct option is pharming because it specifically describes an attack method that alters DNS server records or host configuration files to automatically redirect legitimate web traffic to a rogue site.

Adım Adım Çözüm

1
Analyze the delivery mechanism of the security incident.
Users typed the correct corporate domain URL, but domain resolution directed traffic to an external malicious IP address due to DNS server record manipulation.
Identifying whether the issue stems from user typographical errors, phishing messages, or DNS infrastructure tampering clarifies the exact threat vector.
2
Classify the threat based on CompTIA security definitions.
Traffic redirection achieved via host file alteration or DNS server cache poisoning is classified specifically as pharming.
Pharming attacks exploit network name resolution infrastructure rather than relying on social engineering email links or user typing mistakes.

Anahtar Kavram

Pharming and Infrastructure Manipulation
Soru 246Soru

An IT technician is preparing a fleet of decommissioned desktop computers containing both magnetic hard disk drives (HDDs) and solid-state drives (SSDs) for transport to an off-site physical destruction facility. Corporate security policy mandates that all storage media must undergo on-site logical sanitization or deactivation to purge all sensitive data prior to leaving the facility. Which TWO of the following procedures should the technician perform to properly sanitize these specific media types on-site? (Select TWO.)

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Cevap: Executing an ATA or NVMe Secure Erase command on the solid-state drives; Exposing the magnetic hard disk drives to a high-capacity magnetic degausser

Cevap

The technician should execute an ATA or NVMe Secure Erase command on the solid-state drives and apply a high-capacity magnetic degausser to the magnetic hard disk drives.
Proper media disposition requires selecting sanitization techniques matched to the storage media's physical composition. ATA or NVMe Secure Erase sends microcode instructions directly to the drive controller to flush NAND flash memory blocks, making it the correct purging choice for solid-state drives. High-intensity magnetic degaussing neutralizes the magnetic field alignment on platter surfaces, destroying data on magnetic hard disk drives.

Adım Adım Çözüm

1
Identify the media types requiring sanitization
The target devices consist of magnetic media (HDDs) and semiconductor flash media (SSDs).
Different storage technologies require specific sanitization mechanisms.
2
Select appropriate sanitization method for magnetic HDDs
Degaussing destroys magnetic domains on drive platters, purging data on HDDs effectively.
Magnetic fields disrupt physical magnetic storage alignment but have no effect on electronic flash memory.
3
Select appropriate sanitization method for solid-state SSDs
Executing ATA/NVMe Secure Erase applies electrical voltage changes across all NAND flash blocks to flush data.
Flash-based SSDs store charge in micro-transistors rather than magnetic tracks.

Anahtar Kavram

Data sanitization methods must match the physical storage architecture: degaussing applies strictly to magnetic media (HDDs/tapes), whereas solid-state media (SSDs) require firmware-level commands like ATA/NVMe Secure Erase or cryptographic erasure.
Soru 247Soru

A technician is updating an enterprise data disposition policy for retired equipment. Match each data destruction method to its correct operational application and effect.

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Öğeler

Degaussing
ATA Secure Erase
Physical Shredding
Drive Overwriting

Eşleşmeler

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Cevap

Degaussing corresponds to neutralizing magnetic domains on HDDs/tapes; ATA Secure Erase corresponds to firmware-level purging of SSD storage blocks; Physical Shredding corresponds to mechanical destruction of drive substrates; Drive Overwriting corresponds to replacing logical sectors with zero patterns for drive reuse.
Each disposal technique is properly aligned with its underlying storage technology and operational goals: Degaussing destroys magnetic alignment on magnetic media; ATA Secure Erase triggers onboard controller sanitization for flash media; Physical Shredding provides unrecoverable hardware destruction; and Drive Overwriting cleans magnetic media sectors while preserving hardware functionality for reuse.

Adım Adım Çözüm

1
Identify magnetic-only destruction techniques.
Degaussing requires magnetic media (HDDs, tapes) and renders the drive inoperable by destroying its magnetic alignment and tracks.
Solid-state media does not use magnetic storage, so degaussing has no effect on SSDs.
2
Identify sanitization techniques specific to solid-state storage.
ATA Secure Erase reaches controller-level blocks on SSDs, clearing wear-leveled sectors that standard overwriting tools cannot access.
Standard wiping utilities cannot guarantee complete erasure on SSDs due to wear-leveling algorithms.
3
Differentiate reusable logical sanitization from non-reusable physical destruction.
Drive overwriting permits device reuse, whereas physical shredding destroys hardware completely.
CompTIA standards classify overwriting as sanitization for media reuse, while physical destruction is required for end-of-life disposal under stringent security requirements.

Anahtar Kavram

Data Destruction and Disposal Methods
Soru 248Soru

A technician needs to configure corporate desktops so that they automatically secure themselves when users leave their desks unattended for extended periods. Which of the following workstation hardening best practices should the technician implement?

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Cevap: Configure a screensaver password requirement with a short idle timeout.

Cevap

Configure a screensaver password requirement with a short idle timeout.
Configuring a screensaver password requirement paired with a short idle timeout ensures that when an employee steps away, the workstation locks automatically after the specified time limit, requiring proper authentication to unlock.

Adım Adım Çözüm

1
Identify the primary security requirement.
The requirement is to automatically lock unattended user sessions to prevent unauthorized access.
Physical security best practices require that logged-in workstations lock automatically when left unattended.
2
Evaluate workstation security controls for automatic session locking.
Setting a password-protected screensaver with a low inactivity timeout forces the system to require re-authentication.
This directly mitigates the risk of unauthorized physical access to open user sessions.

Anahtar Kavram

Workstation Hardening - Screen Lock and Idle Timeout Enforcement
Tahmini Süre:45s
Soru 249Soru

A system administrator is configuring local security policies on Windows 11 Professional workstations to meet corporate compliance standards. The security policy requires that whenever an administrative user performs a task requiring elevated rights, Windows must force the user to re-enter their administrative credentials on the Secure Desktop rather than allowing them to proceed by clicking a simple consent button. Which Local Security Policy policy setting should be modified to enforce this prompt behavior?

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Cevap: User Account Control: Behavior of the elevation prompt for administrators in Admin Approval Mode

Cevap

The setting 'User Account Control: Behavior of the elevation prompt for administrators in Admin Approval Mode' controls whether administrators must enter credentials or click consent upon privilege elevation.
The policy setting 'User Account Control: Behavior of the elevation prompt for administrators in Admin Approval Mode' allows administrators to specify how administrative accounts respond to elevation requests. Configuring this setting to 'Prompt for credentials on the secure desktop' ensures administrators must type their passwords to elevate privileges rather than relying on standard consent prompts.

Adım Adım Çözüm

1
Identify the goal in Local Security Policy (secpol.msc)
The requirement is to change administrator elevation prompts from simple consent ('Yes/No') to requiring explicit administrative credential re-entry on the Secure Desktop.
Security baselines often mandate credential re-authentication for administrators to prevent session hijacking or unauthorized automated elevation.
2
Evaluate the relevant UAC Local Security Policy settings under Security Options
'User Account Control: Behavior of the elevation prompt for administrators in Admin Approval Mode' offers options such as 'Prompt for consent on the secure desktop', 'Prompt for credentials on the secure desktop', and 'Prompt for consent for non-Windows binaries'.
Setting this policy to 'Prompt for credentials on the secure desktop' directly satisfies the requirement for administrative users.

Anahtar Kavram

Configuring User Account Control (UAC) elevation prompt behaviors via Local Security Policy (secpol.msc)
Tahmini Süre:1m 0s
Soru 250Soru

A desktop analyst receives a ticket regarding a corporate Windows 11 computer that has been behaving erratically, showing unauthorized background processes modifying system configurations. The analyst completes the initial symptom verification and immediately disconnects all Ethernet and Wi-Fi connections to prevent lateral movement across the internal subnet. Following standard CompTIA best-practice methodology for malware remediation, which action must the analyst perform NEXT before updating anti-malware definitions and running remediation scans?

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Cevap: Disable Windows System Restore to prevent infected files from being saved into persistent backup snapshots.

Cevap

Disable Windows System Restore to prevent infected files from being saved into persistent backup snapshots.
The CompTIA 7-step malware remediation process specifies the following strict order: 1. Identify malware symptoms, 2. Isolate infected systems, 3. Disable System Restore (in Windows), 4. Remediate infected systems (update anti-malware signatures, scan and remove threats), 5. Schedule scans and run updates, 6. Enable System Restore and create a restore point, 7. Educate the user. Because the analyst has already verified symptoms and isolated the machine from the network, the mandatory next action is to disable System Restore.

Adım Adım Çözüm

1
Identify current state in the 7-step malware remediation process
Symptom verification (Step 1) and system isolation (Step 2) have already been completed by disconnecting network interfaces.
Determining the current remediation phase dictates the mandatory subsequent action.
2
Identify Step 3 of CompTIA standard remediation procedures
Step 3 specifies disabling System Restore in Windows.
If System Restore remains active during malware presence, malicious code or infected executable pointers can be saved into system restore points, leading to re-infection if restored later.
3
Select the correct action matching Step 3
Disabling System Restore purges unverified restore points prior to anti-malware updates (Step 4a) and scanning (Step 4b).
This guarantees that clean system images can eventually be created post-remediation without lingering malicious restore files.

Anahtar Kavram

CompTIA 7-Step Malware Remediation Process Execution
Soru 251Soru

An IT technician is troubleshooting an older 32-bit custom accounting application on a Windows 11 Enterprise workstation. When standard users run the application, it appears to function normally and save configuration changes, but these changes are invisible to other users on the same machine. When an administrator logs in and runs the application, the application fails to load those user settings. What Windows User Account Control (UAC) feature is responsible for this behavior?

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Cevap: UAC file and registry virtualization, which redirects writes from protected directories to %LocalAppData%\VirtualStore for standard user accounts.

Cevap

UAC file and registry virtualization redirects write operations from protected system directories to a per-user VirtualStore directory when non-administrative accounts run legacy 32-bit applications.
The correct answer correctly identifies UAC file and registry virtualization. To maintain compatibility with older 32-bit applications that expect write access to system folders (such as C:\Program Files) or system registry hives (HKLM\Software), UAC silently redirects standard user write attempts to %LocalAppData%\VirtualStore. This allows the application to function without triggering access denied errors, but isolates the saved data to that specific standard user profile.

Adım Adım Çözüm

1
Analyze the application behavior described in the scenario.
Standard users can save settings without error, but settings are isolated per user and not visible globally or to administrators.
This behavior indicates that file writes intended for shared system locations (e.g., C:\Program Files) are being redirected to user-specific locations.
2
Identify the Windows security mechanism responsible for backwards compatibility with legacy applications.
User Account Control (UAC) includes File and Registry Virtualization.
Legacy 32-bit applications without a requestedExecutionLevel manifest write to %LocalAppData%\VirtualStore instead of failing due to denied access to protected system paths.
3
Evaluate why administrators do not see these settings.
Administrative accounts bypass UAC virtualization and write directly to protected global directories.
Since the administrator writes to C:\Program Files directly, changes saved in a standard user's %LocalAppData%\VirtualStore are not read during administrative execution.

Anahtar Kavram

UAC File and Registry Virtualization
Soru 252Soru

An IT technician is installing several new smart security cameras across an office building. These embedded IoT devices connect directly to the local network. Which of the following actions should the technician take first to prevent unauthorized administrative access to these devices?

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Cevap: Change the factory default administrative password on each camera.

Cevap

Change the factory default administrative password on each camera.
The correct answer highlights changing factory default administrator credentials. Embedded systems and smart IoT devices often ship with standard passwords published in public manuals. Replacing these default credentials immediately upon setup blocks unauthorized administrative access.

Adım Adım Çözüm

1
Identify the primary threat vector for newly deployed embedded/IoT hardware.
Recognize that IoT devices are frequently targeted using publicly known default vendor login credentials.
Manufacturers ship embedded devices with uniform default passwords that attackers easily exploit.
2
Evaluate the initial security baseline requirements.
Determine that updating administrative credentials before connecting or exposing devices to the broader network is the critical first defense.
Modifying default logins immediately eliminates automated script-kiddie and botnet compromise risks.

Anahtar Kavram

Embedded System and IoT Hardening
Tahmini Süre:45s
Soru 253Soru

A security analyst is defining baseline system hardening guidelines for enterprise workstations deployed in a corporate environment. The objective is to mitigate legacy network credential spoofing vulnerabilities and reduce the local attack surface against targeted brute-force attempts on default administrative privileges. Which of the following technical hardening measures should be implemented to achieve these specific security objectives? (Select TWO.)

Geçerli olan tümünü seçin

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Cevap: Disable built-in Guest accounts and rename default local Administrator accounts.; Disable legacy name resolution protocols including LLMNR and NetBIOS over TCP/IP.

Cevap

Disabling built-in Guest accounts and renaming default Administrator accounts, along with disabling legacy name resolution protocols like LLMNR and NetBIOS over TCP/IP, are the proper technical controls to satisfy these hardening requirements.
The correct hardening measures involve disabling built-in Guest accounts and renaming default local Administrator accounts to restrict local account exploitation, as well as disabling unneeded legacy name resolution protocols (LLMNR and NetBIOS over TCP/IP) to prevent local broadcast spoofing and credential sniffing.

Adım Adım Çözüm

1
Identify local account hardening controls to minimize brute-force targeting of well-known accounts.
Disabling the built-in Guest account removes unauthenticated access, and renaming the default Administrator account prevents automated targeted attacks against known SID/username combinations.
Default administrative account names are primary targets for automated exploits and dictionary attacks.
2
Identify network protocol hardening controls to mitigate local network spoofing.
Disabling LLMNR and NetBIOS over TCP/IP prevents falling back to unauthenticated broadcast name resolution when DNS fails.
Attackers exploit fallback broadcast protocols like LLMNR/NBT-NS using tools like Responder to harvest NTLM challenge responses.
3
Evaluate and eliminate incorrect administrative tool and physical control options.
Event Viewer is an auditing tool rather than a network filter, and physical security controls do not mitigate remote network-based exploits.
Workstation hardening requires applying appropriate logical security configurations matching the specific threat vector.

Anahtar Kavram

Workstation Hardening and Best Practices
Soru 254Soru

A network administrator is setting up a new wireless network for a corporate accounting department. The company's security policy mandates that every employee authenticates using their unique domain credentials and that authentication requests are handled centrally. Which of the following components or standards should the administrator configure to achieve this deployment? (Select TWO.)

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Cevap: WPA3-Enterprise operating mode; A RADIUS server to handle 802.1X authentication requests

Cevap

The administrator should implement WPA3-Enterprise operating mode and configure a RADIUS server to handle 802.1X authentication requests.
Deploying wireless security with central domain credential verification requires an 802.1X architecture utilizing a RADIUS server for authentication, combined with WPA3-Enterprise mode for robust wireless frame encryption.

Adım Adım Çözüm

1
Analyze authentication and security requirements
The scenario requires individual domain authentication and centralized account management, ruling out Personal (PSK/SAE) modes.
Personal modes use a shared secret key for all users, which fails to support individual user accountability.
2
Select protocol and server components
Combine WPA3-Enterprise with an 802.1X RADIUS server.
WPA3-Enterprise leverages 802.1X to pass authentication requests to a backend RADIUS server connected to Active Directory.

Anahtar Kavram

Wireless Enterprise Authentication (802.1X / RADIUS / WPA3-Enterprise)
Soru 255Soru

A systems analyst is reviewing recent security incident reports at a medium-sized enterprise. In the first incident, several employees in the marketing department received SMS text messages claiming their corporate email passwords had expired and prompting them to log into a malicious link. In the second incident, an unidentified individual wearing a fake delivery driver uniform entered the office building lobby and presented a falsified work order to convince the receptionist to grant access past the security desk. Which of the following social engineering threat types were demonstrated in these scenarios? (Select TWO.)

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Cevap: Smishing; Pretexting

Cevap

The threat types demonstrated are Smishing and Pretexting.
The scenario highlights two distinct social engineering vectors. The SMS messages directing users to credential-harvesting links represent smishing. The attacker using a fake delivery uniform and fake documentation to persuade the receptionist into allowing physical access represents pretexting.

Adım Adım Çözüm

1
Analyze the first incident involving SMS text messages.
Using SMS to deliver phishing links targeting credential theft is defined as Smishing.
Smishing specifically refers to phishing vector attacks conducted over Short Message Service (SMS).
2
Analyze the second incident involving the fake delivery driver uniform and falsified work order.
Inventing a false persona and scenario to gain physical entry is defined as Pretexting.
Pretexting focuses on establishing a plausible background story or role to manipulate victims into complying with requests.

Anahtar Kavram

Social engineering attack classification (digital vs. physical vectors)
Soru 256Soru

Match each mobile device or embedded system security control on the left with its corresponding technical implementation objective or enforcement capability on the right.

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Öğeler

MAM Application Containerization
MDM Sideloading Restriction Policy
Embedded Hardware Root of Trust
Full Device Remote Wipe

Eşleşmeler

Cevabı ve açıklamayı göster

Cevap

MAM Application Containerization matches with corporate data segregation on BYOD hardware; MDM Sideloading Restriction Policy matches with blocking installation of unverified third-party app packages; Embedded Hardware Root of Trust matches with cryptographic validation of firmware signatures during boot; Full Device Remote Wipe matches with erasing all flash storage partitions to factory default state.
Each security control aligns directly with its primary technical role: Containerization isolates corporate data on BYOD hardware to enable targeted wipes; sideloading policies block unvetted third-party installation packages; hardware roots of trust cryptographically measure and verify embedded bootloader firmware before boot; and full remote wipes revert lost corporate hardware back to clean factory default states.

Adım Adım Çözüm

1
Analyze BYOD security controls for enterprise app isolation
Identify MAM Application Containerization as the mechanism created to separate corporate data from personal data without full device erasure.
Containerization creates a logically isolated, encrypted storage area for corporate apps.
2
Determine mobile app distribution and execution policies
Map the MDM Sideloading Restriction Policy to blocking unverified third-party software packages.
Disabling sideloading prevents users from manually deploying unapproved or malicious APK/IPA installation files.
3
Examine low-level firmware and boot integrity controls for embedded systems
Link Embedded Hardware Root of Trust to signature validation of bootloader firmware during RTOS boot.
Hardware security modules establish an immutable chain of trust during system startup.
4
Evaluate enterprise response options for lost or stolen assets
Match Full Device Remote Wipe to the complete sanitation of flash storage partitions back to factory settings.
When a corporate-owned asset is compromised, a complete reset ensures no cached encryption keys or data remain.

Anahtar Kavram

Mobile Device and Embedded System Security Controls
Tahmini Süre:1m 30s
Soru 257Soru

A healthcare organization is preparing to decommission an array of enterprise Self-Encrypting Drives (SEDs) containing magnetic platters that stored protected health information (PHI). The IT department plans to reassign these physical hard drives to a non-sensitive internal development environment. The compliance policy requires a NIST-compliant purge method that renders all historical data unrecoverable via advanced laboratory techniques while preserving the drive hardware for immediate reuse. Which of the following data disposition methods should the technician perform?

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Cevap: Perform a Cryptographic Erase (CE) to destroy the internal media encryption keys.

Cevap

Performing a Cryptographic Erase (CE) to destroy the internal media encryption keys.
Performing a Cryptographic Erase (CE) on Self-Encrypting Drives (SEDs) permanently erases or overwrites the symmetric media encryption key stored in the controller onboard memory. Without the key, existing encrypted data on the platters becomes unreadable ciphertext that cannot be decrypted even with specialized laboratory recovery techniques. Because the physical magnetic structure of the disk is unaltered, the drive can be re-initialized with a new key and safely redeployed.

Adım Adım Çözüm

1
Analyze the organization's requirements for data disposition.
Identified the need for a 'Purge' level sanitization (unrecoverable via laboratory methods) that simultaneously allows hardware redeployment/reuse on Self-Encrypting Drives (SEDs).
Selecting an improper disposition method either leaves sensitive data vulnerable or unnecessarily destroys reusable enterprise hardware.
2
Evaluate the capabilities of Self-Encrypting Drives (SEDs) regarding sanitization.
Determined that SEDs store data encrypted at rest, and destroying the internal cryptographic key instantly renders all underlying ciphertext indecipherable.
Cryptographic Erase (CE) is defined by NIST SP 800-88 as an approved purge technique for self-encrypting media that preserves drive functionality.
3
Eliminate options that fail to preserve hardware or fail security standards.
Degaussing and shredding destroy the drive hardware preventing reuse, while standard OS formatting provides insufficient sanitization (clear only, not purge).
Only Cryptographic Erase meets both constraints: purging sensitive PHI and preserving physical disk functionality.

Anahtar Kavram

Data Sanitization Standards (NIST SP 800-88) and Cryptographic Erase
Tahmini Süre:2m 0s
Soru 258Soru

A field systems engineer is configuring wireless connectivity for a newly established regional office. The company security policy mandates that all employees authenticate using their individual network credentials via an existing RADIUS server, ensuring dynamic per-session encryption keys rather than a static shared passphrase. Which wireless security configuration should the engineer implement on the access points?

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Cevap: WPA3-Enterprise utilizing 802.1X authentication

Cevap

WPA3-Enterprise utilizing 802.1X authentication
WPA3-Enterprise uses 802.1X authentication to interface directly with a RADIUS server, allowing centralized authentication of individual domain user accounts and generating unique per-session encryption keys.

Adım Adım Çözüm

1
Identify the authentication requirement
The requirement specifies individual authentication using employee network credentials via RADIUS.
Enterprise modes (802.1X) connect to RADIUS servers for central credential verification, whereas Personal modes rely on shared passphrases.
2
Determine the appropriate security mode
Select WPA3-Enterprise for modern security and RADIUS 802.1X integration.
WPA3-Enterprise provides robust encryption alongside 802.1X corporate credential authentication.

Anahtar Kavram

Wireless Security Modes and Enterprise Authentication
Soru 259Soru

Match each workstation hardening policy or control on the left to its corresponding primary risk mitigation objective on the right.

Soldaki öğeye tıklayın, sonra eşleşen sağdaki öğeye tıklayın

Öğeler

Disabling unneeded services and open ports
Configuring screensaver password lock with timeout
Enforcing account lockout threshold policy
Disabling AutoRun and AutoPlay features

Eşleşmeler

Cevabı ve açıklamayı göster

Cevap

Disabling unneeded services and ports reduces the system attack surface by removing active listening points. Setting a screensaver password lock protects against physical access on unattended systems. Enforcing account lockout threshold mitigates online brute-force password attacks. Disabling AutoRun and AutoPlay prevents malicious script execution from inserted USB drives.
Each hardening control directly addresses a distinct operational vulnerability: disabling unused services reduces attack surface, screensaver lock secures physical access, account lockout mitigates brute-force attacks, and disabling AutoRun blocks malicious removable media execution.

Adım Adım Çözüm

1
Identify the primary threat vector targeted by disabling unused services and listening ports.
Disabling unneeded network protocols and background services directly minimizes unnecessary attack surface.
Fewer listening ports mean fewer entry points for network vulnerabilities.
2
Identify the primary threat vector targeted by password-protected screensaver timeouts.
Locks the interactive user session automatically after inactivity.
Prevents unauthorized physical users from accessing logged-in resources.
3
Identify the primary threat vector targeted by account lockout policies.
Limits maximum consecutive failed login attempts.
Blocks automated scripts trying thousands of password combinations.
4
Identify the primary threat vector targeted by disabling AutoRun/AutoPlay.
Prevents Windows from executing default autorun files on removable media.
Stops malicious drives from executing payload code without user intervention.

Anahtar Kavram

Workstation Hardening and Best Practices
Soru 260Soru

A desktop support technician needs to sanitize several decommissioned magnetic hard disk drives (HDDs) that contained confidential customer financial records before releasing them to an off-site recycling vendor. The technician requires an on-site method that neutralizes the magnetic domains of the platters, rendering the stored data completely unrecoverable and the drives permanently inoperable. Which of the following data destruction methods best fulfills these requirements?

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Cevap: Degaussing

Cevap

Degaussing is the correct method because it exposes magnetic hard disk drives to a high-coercivity magnetic field, neutralizing magnetic tracks and destroying stored data while permanently disabling the drive electronics and magnetic servo patterns.
Degaussing introduces a powerful magnetic field that demagnetizes the drive platters. For magnetic hard drives (HDDs), this sanitizes all stored data and destroys the essential factory servo tracks, rendering the drive permanently unusable as required.

Adım Adım Çözüm

1
Identify the media type and destruction requirements
The media consists of magnetic hard disk drives (HDDs) containing sensitive data that must be rendered unrecoverable while also rendering the physical media inoperable.
Different storage media technologies require distinct destruction techniques; magnetic media responds directly to magnetic degaussing fields.
2
Evaluate sanitization methods against magnetic media properties
Degaussing applies a strong electromagnetic pulse that completely erases magnetic patterns and factory alignment tracks on HDD platters.
This process ensures total data destruction and prevents the drive from being used again.
3
Eliminate methods that do not meet the security or hardware disabling constraints
Formatting and write-blocking leave data intact or recoverable, while ATA Secure Erase leaves the hard drive functional.
Only degaussing achieves both magnetic data destruction and permanent drive rendering unusable without needing physical shredding.

Anahtar Kavram

Magnetic Media Degaussing and Sanitization
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Security Alıştırma Soruları — CompTIA A+ (Core 1 & Core 2) — Sayfa 13 | Examkin