Amazon AWS Certified Advanced Networking – Specialty ANS-C01 Exam Dumps and Practice Test Questions Set 10 Q181-200

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Question 181 

A company wants to replicate VMs asynchronously to a secondary site for disaster recovery while minimizing RPO. Which feature should they use?

A) vSphere Replication
B) Snapshots
C) Storage vMotion
D) DRS

Answer: A)

Explanation: 

vSphere Replication is designed to provide asynchronous replication of virtual machines to a secondary site for disaster recovery purposes. Unlike synchronous replication, which requires real-time mirroring and can impact performance due to latency, asynchronous replication replicates only the changed blocks of a VM at configurable intervals. This allows administrators to manage the balance between recovery point objectives (RPO) and available network bandwidth. By replicating only the differences rather than entire virtual machine disks, vSphere Replication reduces the storage footprint and network load, making it suitable for large-scale deployments.

The solution supports both single-site and multi-site replication scenarios, providing flexibility in disaster recovery planning. When combined with Site Recovery Manager (SRM), replication workflows can be automated for failover, failback, and non-disruptive testing. SRM allows administrators to create recovery plans that include the order of VM startup, network reconfiguration, and application dependencies. This ensures that, in the event of a primary site outage, workloads can be restored quickly to a secondary location with minimal data loss.

Other VMware features do not provide this level of disaster recovery capability. Snapshots, for instance, capture the state of a VM at a specific point in time and are primarily intended for short-term rollback or testing. They are not suitable for replication across sites or for maintaining an RPO over extended periods. Storage vMotion allows migration of VM storage between datastores without downtime but does not replicate data to a separate disaster recovery site. Similarly, Distributed Resource Scheduler (DRS) optimizes workload placement and resource balancing within a cluster but does not replicate data or protect against site-level failures.

By using vSphere Replication, organizations gain a flexible, efficient, and reliable mechanism to protect virtual workloads. Administrators can configure replication intervals ranging from five minutes to twenty-four hours depending on business needs. This capability ensures that even in the event of a failure, recovery is possible with minimal disruption, helping to meet stringent disaster recovery requirements and maintain business continuity.

Question 182 

A company wants to encrypt network traffic between VMs without changing the application configuration. Which VMware feature should they use?

A) vSphere VM Encryption with encrypted vMotion
B) Snapshots
C) DRS
D) Storage I/O Control

Answer: A)

Explanation: 

vSphere VM Encryption provides administrators with the ability to encrypt virtual machines at the storage level, ensuring that all VM files, including configuration files and virtual disks, are protected from unauthorized access. When paired with encrypted vMotion, traffic between hosts during live migrations is also encrypted, which safeguards sensitive data as it moves across the network. This encryption process is transparent to the guest operating system and applications, meaning no modifications to existing workloads are required to achieve security compliance.

Encrypted vMotion works by securing the memory, CPU state, and network information of a migrating VM, preventing interception or tampering during migration. The process uses industry-standard cryptographic protocols, and the encryption keys are managed through integration with a Key Management Server (KMS). This centralized key management ensures consistent security practices across the environment while allowing administrators to rotate, revoke, or audit keys as needed. VM Encryption extends to templates, snapshots, and disks, ensuring that data at rest and in motion is protected.

Other VMware features do not provide equivalent protection. Snapshots capture a point-in-time VM state but do not encrypt ongoing communications or live migration traffic. Distributed Resource Scheduler (DRS) optimizes VM placement and resource allocation without affecting network security, and Storage I/O Control prioritizes storage bandwidth but does not provide encryption.

Implementing VM Encryption with encrypted vMotion is particularly valuable for environments handling sensitive data, such as financial, healthcare, or government workloads. It ensures compliance with data protection standards while maintaining operational efficiency. Administrators can migrate VMs securely across hosts or clusters without introducing downtime or requiring application-level changes. This capability strengthens the overall security posture of the virtual infrastructure, providing both compliance assurance and operational transparency.

Question 183 

A company wants to manage multiple VMs across clusters while maintaining consistent VM placement rules. Which feature should they use?

A) DRS
B) vMotion
C) Snapshots
D) Content Library

Answer: A)

Explanation: 

Distributed Resource Scheduler (DRS) is designed to manage virtual machine workloads across clusters of hosts efficiently. It continuously monitors resource utilization, including CPU and memory usage, and balances workloads to ensure optimal performance. Administrators can define VM placement rules, including affinity and anti-affinity policies, which dictate whether VMs should be co-located on the same host or isolated across hosts. This ensures that critical applications maintain performance, availability, and compliance with operational policies.

DRS can operate in either fully automated or partially automated mode. In fully automated mode, DRS makes live migration decisions using vMotion without administrator intervention, moving VMs between hosts to maintain balanced resource utilization. In partially automated mode, DRS provides recommendations for migrations, giving administrators the ability to review and approve changes. This flexibility allows organizations to adapt the level of automation based on operational comfort and risk tolerance.

Other VMware features do not offer comprehensive cluster-wide management. vMotion allows individual VM migration without downtime but does not enforce policies across multiple VMs or hosts. Snapshots provide point-in-time recovery but have no impact on workload placement or resource balancing. Content Library enables centralized storage and deployment of templates and ISOs but does not manage live VM operations or placement rules.

By using DRS, administrators can maintain consistent VM placement across clusters, optimize resource usage, and prevent performance degradation due to resource contention. It ensures workloads are efficiently distributed, critical applications remain isolated or co-located according to policy, and cluster resources are fully utilized. This makes DRS a foundational component for managing complex VMware environments at scale.

Question 184 

A company wants to migrate a VM to a different datastore while ensuring zero downtime. Which feature should they use?

A) Storage vMotion
B) vMotion
C) Snapshots
D) Content Library

Answer: A)

Explanation: 

Storage vMotion is a VMware feature that enables administrators to migrate a virtual machine’s disk files from one datastore to another without powering off the VM. This functionality ensures zero downtime during storage migration, which is crucial for maintaining business continuity, reducing disruption to end users, and supporting operational maintenance tasks. By allowing live movement of disk files, Storage vMotion facilitates storage load balancing, hardware upgrades, or capacity management without impacting running workloads.

The feature supports the migration of individual or multiple virtual disks, giving administrators the flexibility to optimize storage placement based on performance, cost, or redundancy requirements. Storage vMotion integrates with vCenter Server to automate migration operations, track progress, and provide monitoring and logging for auditing purposes. The process also preserves VM performance by dynamically adjusting I/O operations during migration.

Other VMware features do not offer the same live storage migration capability. vMotion is primarily focused on moving VM compute workloads between hosts and does not handle storage relocation. Snapshots capture the state of a VM at a specific point in time but cannot migrate storage or ensure zero downtime during migration. Content Library provides centralized templates and ISOs but does not manage live VM storage operations.

Using Storage vMotion ensures flexibility in managing datastores, enables administrators to optimize storage performance, and reduces operational risk during migrations. By allowing continuous VM operation while relocating disk files, it is essential for environments that require high availability and minimal service disruption. Organizations can leverage this feature to maintain performance and availability during planned storage maintenance or upgrades.

Question 185 

A company wants to maintain continuous operation of a critical VM even if the host fails. Which VMware feature should they use?

A) vSphere Fault Tolerance
B) DRS
C) Snapshots
D) Storage I/O Control

Answer: A)

Explanation: 

vSphere Fault Tolerance (FT) ensures continuous operation of a virtual machine by creating a secondary VM that runs in lockstep with the primary VM on a separate host. This secondary VM mirrors the CPU, memory, and network state of the primary VM in real time. In the event of a host failure, the secondary VM instantly takes over without downtime or data loss, guaranteeing continuous operation for mission-critical workloads. This zero-downtime capability is particularly valuable for applications that cannot tolerate interruptions, such as financial transactions, healthcare systems, or critical infrastructure services.

The failover process with FT is fully automated and does not require manual intervention. The secondary VM maintains synchronization with the primary, ensuring that all transactions and in-memory operations are preserved. Administrators can monitor FT performance, configure network redundancy, and ensure that host resources are sufficient to support secondary VMs. FT integrates seamlessly with other VMware features, providing a high-availability solution without requiring complex clustering or specialized application configurations.

Other VMware features provide complementary but different benefits. DRS balances workloads and optimizes resource usage across hosts but does not protect against host failure or guarantee zero-downtime operation. Snapshots allow rollback to a previous state but cannot maintain continuous operation during hardware failures. Storage I/O Control prioritizes storage bandwidth but does not provide host-level failover.

By using vSphere Fault Tolerance, organizations can achieve continuous VM availability, mitigate the risk of hardware failure, and maintain service level agreements. It is a key component for environments requiring uninterrupted operations, combining automation, resilience, and real-time state replication to protect critical virtual workloads effectively.

Question 186 

A company wants to proactively migrate VMs away from hosts showing early failure signs. Which feature should they enable?

A) Proactive HA
B) vSphere Replication
C) Storage vMotion
D) DRS

Answer: A)

Explanation: 

Proactive High Availability (Proactive HA) is a feature designed to improve VM uptime by monitoring host hardware and identifying early signs of potential failure. It uses data from hardware sensors, monitoring tools, and vendor alerts to detect issues such as degraded components, thermal warnings, or other indications of impending hardware failure. Once these signs are detected, Proactive HA can take preemptive action to minimize the impact on running workloads.

The feature works closely with Distributed Resource Scheduler (DRS) to determine the most suitable target hosts for VM migration. DRS evaluates available resources across the cluster, including CPU and memory capacity, to ensure that migrated VMs are placed on hosts that can support their performance requirements. This coordination ensures not only that VMs remain available but also that overall cluster resources are utilized efficiently.

Unlike vSphere Replication, which focuses on asynchronous replication for disaster recovery, Proactive HA actively monitors host health and initiates live VM migrations before a failure occurs. Storage vMotion, while able to move VM disks between datastores without downtime, is intended for storage optimization rather than host failure mitigation. DRS alone balances workloads based on utilization but does not respond to hardware health alerts.

By proactively migrating VMs off potentially failing hosts, Proactive HA reduces unplanned downtime and allows administrators to perform maintenance or replace hardware safely. This approach ensures business continuity and helps maintain service-level agreements by preventing interruptions that could occur if a host were to fail unexpectedly. Proactive HA provides a proactive rather than reactive solution to hardware failures, making it a critical feature in highly available virtual environments.

Question 187 

A company wants to create a library of standardized VM templates for consistent deployments. Which feature should they use?

A) Content Library
B) Snapshots
C) vSphere Replication
D) Storage vMotion

Answer: A)

Explanation: 

A company wants to create a library of standardized VM templates for consistent deployments. Which feature should they use?
Answer: A) Content Library

Explanation:
Content Library provides a centralized repository for storing and managing VM templates, ISO images, and scripts. By using Content Library, administrators can create standardized templates that can be reused across multiple vCenters and accounts. This centralization reduces errors and ensures consistency in VM deployments, which is critical for maintaining configuration standards across environments.

Templates stored in the Content Library can be versioned, enabling administrators to track changes and roll back to previous versions if needed. Synchronization features allow these templates to be shared across different sites, supporting both on-premises and hybrid cloud environments. Automation tools can leverage these templates for rapid provisioning, helping to scale infrastructure quickly while maintaining a consistent configuration.

Snapshots, while useful for capturing temporary VM states, are intended for short-term rollback or testing scenarios and are not suitable for centralized template management. vSphere Replication focuses on data replication for disaster recovery and does not provide features for standardizing VM deployments. Storage vMotion allows moving disks between datastores without downtime but does not create reusable templates.

Content Library ensures that organizations can efficiently manage their VM templates and related resources, enabling repeatable, reliable deployments. By using this feature, companies reduce configuration drift, improve operational efficiency, and enforce IT standards across multiple environments. It is an essential tool for organizations looking to maintain consistent and scalable virtual infrastructure management.

Question 188 

A company wants to encrypt VM data at rest across all datastores. Which feature should they enable?

A) vSphere VM Encryption
B) Storage vMotion
C) DRS
D) Fault Tolerance

Answer: A)

Explanation: 

vSphere VM Encryption provides the ability to encrypt virtual machine files, including disks, snapshots, and configuration files, across all datastores. This encryption protects sensitive workloads from unauthorized access and ensures compliance with security and regulatory standards. The feature integrates with a Key Management Server (KMS) to handle encryption keys securely, separating key management from the physical data storage for enhanced security.

The encryption process is transparent to the guest operating system, requiring no changes to applications or workloads running inside the VM. Administrators can selectively apply encryption to individual VMs or extend it to templates, ensuring consistent protection across the environment. Performance overhead is minimal, making it practical for a wide range of workloads without impacting operational efficiency.

Other features like Storage vMotion, DRS, and Fault Tolerance do not provide encryption. Storage vMotion focuses on moving disks between datastores without downtime, DRS optimizes resource allocation across hosts, and Fault Tolerance provides continuous availability but does not protect data confidentiality. vSphere VM Encryption specifically addresses the requirement for encrypting data at rest.

By enabling vSphere VM Encryption, organizations safeguard sensitive information, meet compliance requirements, and maintain consistent security policies across their virtual infrastructure. This proactive approach to data protection ensures that even if physical storage devices are compromised, the data remains secure and inaccessible without the proper encryption keys.

Question 189 

A company wants to balance workloads across hosts automatically to optimize resource usage. Which feature should they use?

A) DRS
B) vMotion
C) Snapshots
D) Fault Tolerance

Answer: A)

Explanation: 

Distributed Resource Scheduler (DRS) is a critical VMware feature designed to ensure efficient resource utilization across a cluster of hosts. Its primary function is to automatically monitor and balance workloads based on real-time analysis of CPU, memory, and other resources. By continuously evaluating host performance, DRS identifies overutilized or underutilized hosts and dynamically redistributes virtual machines (VMs) to maintain optimal performance. This automated balancing helps prevent resource bottlenecks that could negatively impact application performance or overall system efficiency.

DRS can operate in two distinct modes: fully automated and manual. In fully automated mode, DRS takes complete control of VM placement and migration decisions, moving VMs between hosts without any administrator intervention. This allows workloads to adapt dynamically to changing demand, ensuring consistent performance across the cluster. In manual mode, DRS provides recommendations for live migrations using vMotion, which administrators can review and approve before execution. This mode is useful in environments where change management policies require human oversight. Regardless of the mode, DRS leverages vMotion to migrate VMs without any downtime, preserving application availability during the rebalancing process.

It is important to differentiate DRS from other VMware features. vMotion enables live migration of individual VMs but does not perform cluster-wide optimization or automated load balancing. Snapshots allow administrators to capture the state of a VM at a particular point in time for recovery purposes but do not influence resource allocation. Fault Tolerance provides continuous availability for critical workloads by creating redundant copies of VMs, but it does not address workload distribution or performance optimization. Unlike these features, DRS focuses specifically on optimizing resource allocation across the cluster to ensure all VMs have sufficient resources to operate efficiently.

By implementing DRS, organizations can achieve a high level of operational efficiency and predictable performance. Workloads are dynamically balanced, reducing resource contention and ensuring that applications run smoothly even during periods of high demand. DRS is particularly valuable in large-scale virtual environments where manual resource management would be time-consuming and prone to error. Overall, DRS enables organizations to fully leverage their compute resources, improve scalability, and maintain a consistent level of performance across all VMs in the cluster, making it a cornerstone of modern VMware infrastructure management.

Question 190 

A company wants to move VM storage between datastores without powering off the VM. Which feature should they use?

A) Storage vMotion
B) vMotion
C) Snapshots
D) Content Library

Answer: A)

Explanation: 

Storage vMotion is a VMware feature that allows live migration of virtual machine (VM) disks from one datastore to another while the VM continues to run without interruption. This capability is crucial for environments where continuous availability is required, as it allows administrators to perform storage maintenance, balance storage loads, or optimize storage performance without causing downtime. Storage vMotion supports migration of individual VM disks or multiple disks simultaneously, giving administrators the flexibility to manage storage resources efficiently across the virtual environment.

The process of Storage vMotion is fully integrated with vCenter, which coordinates the migration to ensure efficiency and reliability. During the migration, data integrity is preserved, and the VM’s ongoing operations continue without disruption. This enables organizations to manage storage capacity proactively, move data to higher-performance devices, or consolidate storage resources on preferred datastores while maintaining uninterrupted service for end-users. By decoupling storage from host location, Storage vMotion also facilitates dynamic infrastructure management and reduces the risk of performance bottlenecks due to uneven storage utilization.

It is important to distinguish Storage vMotion from other VMware features. vMotion focuses on migrating VMs between hosts but does not move the associated virtual disks, meaning storage remains tied to the original datastore. Snapshots capture the state of a VM at a specific point in time, which is useful for rollback or recovery but does not provide the capability to migrate storage without downtime. Content Library is designed to manage VM templates, ISO images, and scripts centrally but has no functionality for live disk migration. Unlike these tools, Storage vMotion directly addresses storage mobility, allowing administrators to manage data placement without interrupting workloads.

Using Storage vMotion provides organizations with a robust method for maintaining continuous VM availability while addressing storage needs. It is especially valuable in environments that demand high uptime or where storage performance and capacity optimization are ongoing concerns. By enabling seamless migration of VM disks, Storage vMotion ensures operational continuity, reduces risk during maintenance, and allows IT teams to optimize storage infrastructure proactively. Overall, it is a key feature for maintaining flexibility, improving storage performance, and supporting uninterrupted business operations in VMware environments.

Question 191 

A company wants to ensure that specific VMs always run on the same host to reduce latency between them. Which feature should they use?

A) VM-to-Host Affinity Rule
B) DRS Anti-Affinity Rule
C) Snapshots
D) Storage vMotion

Answer: A)

Explanation: 

VM-to-Host Affinity Rules allow administrators to define policies that ensure specific virtual machines always run on a designated host. This feature is particularly useful for workloads that are latency-sensitive, such as database clusters, high-performance computing applications, or tightly coupled services where low network latency between VMs is critical. By keeping these VMs co-located on the same physical host, inter-VM communication occurs locally within the host’s memory and network fabric, significantly reducing latency compared to traffic that traverses a physical network between hosts.

These rules also help meet strict performance requirements consistently. For example, in multi-tier applications where application tiers must communicate rapidly, VM-to-Host Affinity Rules prevent performance degradation caused by cross-host network delays. Administrators can configure these rules in vCenter to work in conjunction with Distributed Resource Scheduler (DRS), allowing automated load balancing within the cluster while still honoring affinity policies. This ensures that critical VMs remain together without compromising overall cluster efficiency.

Other VMware features serve different purposes. DRS Anti-Affinity Rules, for instance, prevent selected VMs from being co-located, which is the opposite of what is required for low-latency workloads. Snapshots capture a VM’s state at a point in time but do not influence host placement or inter-VM latency. Storage vMotion enables moving VM disks between datastores without downtime, but it has no impact on the physical host where the VM runs.

Using VM-to-Host Affinity Rules provides administrators with precise control over VM placement. It ensures that latency-sensitive workloads maintain high performance, reduces network overhead between VMs, and integrates seamlessly with cluster management and resource balancing. This capability is crucial for organizations running performance-critical applications, high-frequency trading systems, or multi-tier enterprise services where milliseconds matter.

Question 192 

A company wants to migrate a VM to another host while keeping it powered on. Which feature should they use?

A) vMotion
B) Storage vMotion
C) Snapshots
D) Content Library

Answer: A)

Explanation: 

vMotion is a VMware technology that enables the live migration of virtual machines (VMs) from one host to another without requiring the VM to be powered off or interrupting running applications. During a vMotion migration, the VM’s memory, CPU state, and active network connections are transferred seamlessly to the target host. This ensures that workloads continue to operate without downtime, making it a vital tool for maintaining continuous availability in virtualized environments. By enabling uninterrupted VM movement, vMotion supports maintenance tasks, hardware upgrades, or host replacement without affecting end-user experience.

vMotion works closely with Distributed Resource Scheduler (DRS) to optimize workload distribution across a cluster. DRS can provide recommendations or automatically trigger vMotion migrations based on current resource utilization, ensuring that CPU, memory, and network capacity are balanced efficiently. The process is transparent to both the VM and its applications, with no perceptible downtime, data loss, or network disruption. Administrators can also use vMotion proactively to redistribute workloads in anticipation of high demand, or reactively to respond to host performance issues, providing flexibility and operational control.

While other VMware features complement vMotion, they do not offer live host migration. Storage vMotion, for instance, moves virtual disks between datastores without downtime but does not handle the VM’s memory or CPU state, meaning it cannot move the compute workload itself. Snapshots capture the state of a VM at a specific point in time, which is useful for testing or recovery, but they do not facilitate migration of running workloads. Similarly, the Content Library provides centralized management for templates, ISO images, and scripts, aiding in deployment and standardization, but it does not support moving active VMs between hosts.

vMotion is essential for maintaining high availability and operational continuity in virtualized environments. It allows IT teams to perform host-level maintenance, manage hardware upgrades, and respond to unexpected failures without impacting the user experience. By keeping workloads powered on and operational during migration, vMotion ensures uninterrupted service delivery while improving resource management across the data center. Its integration with DRS enhances cluster efficiency, reduces performance bottlenecks, and supports dynamic scaling, making it a foundational feature for organizations seeking reliability, flexibility, and continuous uptime in VMware environments.

Question 193 

A company wants to protect a VM against host failure without adding significant performance overhead. Which feature should they enable?

A) vSphere Fault Tolerance
B) Proactive HA
C) DRS
D) Storage I/O Control

Answer: A)

Explanation: 

vSphere Fault Tolerance (FT) provides continuous availability for critical virtual machines by creating a secondary VM that mirrors the primary VM’s CPU and memory state in real-time on a separate host. This secondary instance is kept fully synchronized with the primary, enabling instantaneous failover in the event of a host failure. This ensures zero downtime and zero data loss, making FT ideal for mission-critical workloads where service interruptions are unacceptable.

FT achieves protection with minimal performance overhead because the secondary VM is optimized to replicate only necessary state changes efficiently. Unlike other high-availability mechanisms, FT provides instantaneous failover without requiring manual intervention, reducing operational complexity. Administrators can monitor FT operations, configure network redundancy, and ensure host resources are sufficient to support secondary VMs while maintaining performance levels for all critical workloads.

Other VMware features offer different types of protection but do not provide the same combination of continuous availability and minimal overhead. Proactive HA preemptively migrates VMs away from failing hosts, but it cannot guarantee zero-downtime failover. DRS balances workloads and optimizes resource allocation, but it does not protect against host-level failures. Storage I/O Control prioritizes storage bandwidth but does not provide host-level fault tolerance or continuous availability.

By enabling vSphere Fault Tolerance, organizations gain a reliable, efficient, and automated mechanism to protect high-value virtual machines. It ensures uninterrupted operation, mitigates the risk of hardware failure, and maintains performance while simplifying high-availability management in complex VMware environments.

Question 194 

A company wants to revert a VM to a previous state for testing software updates. Which feature should they use?

A) Snapshots
B) Storage vMotion
C) Content Library
D) vSphere Replication

Answer: A)

Explanation: 

Snapshots capture the complete state of a virtual machine at a specific point in time, including its memory, disk files, and configuration. This allows administrators to perform software updates, configuration changes, or testing experiments while having the ability to revert the VM to its previous state if errors or issues occur. Snapshots are particularly valuable in test or development environments, where multiple iterations of a VM’s state may need to be preserved temporarily.

Administrators can chain multiple snapshots, creating a sequence of recovery points to provide additional flexibility. For instance, testing a software upgrade can involve taking an initial snapshot, applying changes, and then taking another snapshot to track incremental updates. This approach ensures administrators can experiment safely without risking production workloads or data integrity. Snapshots are designed for short-term use and are not a replacement for full backups or disaster recovery replication.

Other VMware tools serve different purposes. Storage vMotion moves VM disk files between datastores without downtime but does not capture a VM’s state. Content Library centralizes templates, ISOs, and scripts for deployment but cannot provide point-in-time recovery. vSphere Replication replicates VM data asynchronously to a secondary site for disaster recovery but does not allow immediate rollback to a previous testing state.

By leveraging snapshots, organizations gain a simple, reliable, and flexible mechanism for reverting VMs to known states. This supports software testing, troubleshooting, and temporary configuration changes while minimizing risk and maintaining operational continuity. Snapshots are an essential tool for IT administrators who need controlled rollback capabilities in dynamic or experimental environments.

Question 195 

A company wants to inspect inter-VM traffic centrally without modifying applications. Which VMware feature should they use?

A) Proactive HA
B) vSphere Replication
C) Gateway Load Balancer with inspection appliances
D) Storage vMotion

Answer: C)

Explanation: 

Gateway Load Balancer (GWLB) with inspection appliances provides a centralized mechanism for inspecting inter-VM traffic without modifying individual applications. By integrating with the routing infrastructure, such as a transit gateway or distributed virtual networking, GWLB allows traffic to be redirected transparently through inspection appliances. These appliances can perform deep packet inspection, threat detection, and enforce security or compliance policies across the environment.

GWLB is highly scalable and resilient, providing high availability and redundancy for inspection workloads. This ensures that enterprise-level traffic volumes can be handled without impacting performance. Organizations can deploy security services such as intrusion detection, firewalls, and malware scanning in a centralized manner while maintaining application transparency. This eliminates the need to reconfigure individual VMs or install additional software agents, which reduces operational complexity and potential points of failure.

Other VMware features do not provide centralized traffic inspection. Proactive HA migrates VMs away from hosts showing early failure indicators but does not inspect traffic. vSphere Replication protects VM data for disaster recovery but has no capability to inspect network traffic. Storage vMotion relocates VM storage without downtime but is unrelated to traffic monitoring or inspection.

Using GWLB with inspection appliances ensures that organizations can enforce security and compliance policies consistently across all workloads while maintaining application transparency. It provides a robust solution for centralized traffic inspection, protecting workloads from threats while avoiding operational disruptions.

Question 196 

A company wants to enforce domain-level outbound DNS filtering across multiple VPCs. Which AWS service should they use?

A) Route 53 Resolver DNS Firewall
B) NAT Gateway
C) Internet Gateway
D) Security groups

Answer: A)

Explanation: 

Route 53 Resolver DNS Firewall provides a centralized way to filter DNS queries based on domain names. Administrators can define rules in firewall rule groups to allow, block, or redirect requests. These rule groups can be associated with multiple VPCs and AWS accounts, ensuring that policies are applied consistently across complex network environments. This makes it much easier to enforce domain-level filtering without deploying additional appliances or making client-side changes.

The service integrates with resolver endpoints to forward DNS queries from both cloud and hybrid environments through the firewall. This ensures that DNS queries from on-premises networks, VPNs, or Direct Connect connections follow the same security policies as queries originating within AWS. Logging and monitoring features provide visibility into DNS activity, enabling auditing, compliance checks, and threat detection. Administrators can track which domains are accessed and identify potential risks without disrupting normal operations.

Other AWS networking components do not offer the same capabilities. NAT Gateway allows private IP addresses to access the internet but cannot filter DNS queries by domain. Internet Gateway enables internet connectivity but does not inspect or enforce DNS policies. Security groups allow traffic filtering by IP, protocol, and port, but they do not operate at the domain level and cannot provide centralized DNS control.

Because Route 53 Resolver DNS Firewall provides scalable, centralized control over DNS traffic across multiple VPCs and accounts, it is the ideal solution for enforcing domain-level outbound DNS filtering. Its integration with AWS networking services and logging capabilities ensures comprehensive security, making it the correct choice for enterprises managing multiple cloud and hybrid environments.

Question 197 

A company wants to monitor hybrid network performance across AWS regions and on-premises sites. Which AWS service should they use?

A) Transit Gateway Network Manager with CloudWatch
B) VPC Flow Logs
C) GuardDuty
D) AWS Config

Answer: A)

Explanation: 

Transit Gateway Network Manager allows organizations to monitor hybrid networks that span multiple AWS regions and on-premises sites. It collects metrics such as latency, jitter, packet loss, and throughput, providing a real-time view of network health. By integrating with CloudWatch, it enables automated monitoring and alerting, which is crucial for quickly identifying and resolving performance issues before they affect applications.

The service visualizes the entire network topology, including VPN, Direct Connect, and Transit Gateway connections. Administrators can use these visualizations to understand how network traffic flows, detect bottlenecks, and pinpoint the source of performance degradation. Network Manager is particularly useful for global or multi-region deployments, where connectivity issues in one region could impact users in another.

Alternative AWS services do not provide the same level of performance monitoring. VPC Flow Logs capture metadata about traffic in individual VPCs but cannot provide end-to-end visibility or performance metrics. GuardDuty focuses on threat detection rather than monitoring network performance. AWS Config tracks configuration compliance but does not measure latency, packet loss, or overall network health.

Transit Gateway Network Manager with CloudWatch offers a comprehensive solution for organizations that need to monitor hybrid networks across regions and on-premises environments. By combining real-time metrics, visual topology, and centralized management, it provides actionable insights to maintain optimal network performance, making it the best choice for hybrid network monitoring.

Question 198 

A company wants to connect multiple VPCs across accounts with overlapping IP ranges. Which AWS service should they use?

A) AWS PrivateLink
B) VPC Peering
C) Transit Gateway
D) Direct Connect gateway

Answer: A)

Explanation: 

AWS PrivateLink enables private, secure connectivity between VPCs and accounts, even when IP ranges overlap. It achieves this by using interface endpoints that route traffic through the AWS private network. This avoids conflicts caused by overlapping CIDR ranges, which would otherwise prevent connectivity with traditional methods such as VPC peering. Endpoint policies allow administrators to control which services and accounts can communicate, providing fine-grained security and access control.

PrivateLink is highly scalable and can connect multiple accounts and VPCs without requiring changes to existing IP addresses. This makes it ideal for organizations with complex, multi-account architectures where overlapping IP ranges are common. Using PrivateLink also reduces the operational overhead associated with managing NAT or translating addresses to resolve IP conflicts.

Other AWS connectivity options are not suitable in these cases. VPC peering requires non-overlapping IP ranges and would not work without modifying the network design. Transit Gateway centralizes routing but also assumes non-overlapping CIDRs unless additional NAT configurations are applied. Direct Connect gateway facilitates hybrid connectivity but does not solve cross-VPC communication when IP ranges overlap.

AWS PrivateLink provides a secure and reliable way to connect services across VPCs and accounts with overlapping networks. By routing traffic privately, avoiding IP conflicts, and offering granular access controls, it ensures both security and operational simplicity, making it the most suitable solution for cross-VPC communication in complex enterprise environments.

Question 199 

A company wants to route users to the AWS region with the lowest latency and automatically failover unhealthy endpoints. Which Route 53 policy should they use?

A) Latency-based routing with health checks
B) Weighted routing
C) Geolocation routing
D) Simple routing

Answer: A)

Explanation: 

Latency-based routing directs users to the AWS region that offers the lowest network latency. By measuring the performance between user locations and endpoints, Route 53 ensures that queries are resolved by the most responsive region. When combined with health checks, unhealthy endpoints are automatically removed from DNS responses. This provides automatic failover and ensures high availability for global users, enhancing both performance and reliability.

This routing method is particularly useful for distributed applications with users around the world. Dynamic adjustments are made in real-time, so traffic is consistently directed to the optimal endpoint based on current network conditions. This approach improves user experience by minimizing latency while maintaining resilience against regional outages or endpoint failures.

Other routing policies serve different purposes. Weighted routing distributes traffic according to predefined percentages, which is useful for A/B testing but does not optimize latency or provide automatic failover. Geolocation routing routes traffic based on geographic location rather than network performance. Simple routing returns a single IP without considering latency or health, offering no performance or failover benefits.

By combining latency-based routing with health checks, Route 53 ensures that traffic is always directed to the fastest and healthiest endpoints. This approach provides seamless failover, optimal performance, and high availability, making it the correct choice for enterprises seeking to optimize global application delivery.

Question 200 

A company wants to enforce service-to-service encryption across multiple accounts without managing TLS certificates manually. Which service should they use?

A) AWS VPC Lattice
B) VPC Peering
C) Transit Gateway
D) PrivateLink

Answer: A)

Explanation: 

AWS VPC Lattice provides automated service-to-service connectivity with built-in transport-layer encryption and authentication. It eliminates the need for manually managing TLS certificates while offering centralized service discovery and access control. With VPC Lattice, all inter-service traffic is encrypted and authenticated, ensuring zero-trust security across multiple accounts.

The service enforces strict policies so that only authorized services can communicate. Administrators can manage access centrally, reducing operational overhead and simplifying security management. VPC Lattice also maintains high availability and scalability, ensuring that applications can grow without compromising security or connectivity. By automating certificate handling, it minimizes operational errors and accelerates deployment of secure inter-service communication.

Alternative AWS options provide connectivity but lack integrated service-level encryption. VPC peering establishes network connectivity but does not enforce encryption or manage certificates. Transit Gateway centralizes routing but cannot automatically encrypt traffic between services. PrivateLink allows private connectivity but does not provide automatic TLS certificate management or enforce service-level encryption.

By using VPC Lattice, organizations can enforce secure, encrypted communication across services in multiple accounts without the complexity of manual certificate management. It simplifies operations, strengthens security, and ensures consistent policy enforcement, making it the best choice for automated service-to-service encryption in multi-account environments.