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Tüm alıştırma soruları

1473 soru

Tüm türler1,473Çoktan seçmeli755Çoklu seçim693Eşleştirme25
Soru 1261Soru →

A media production company wants to implement a storage solution on AWS for two specific use cases. First, they need to store raw video footage that must be accessed and modified concurrently by multiple Amazon EC2 instances for collaborative editing. Second, they need to store final rendered video exports that are rarely accessed but must be available immediately for users to download. Which two AWS storage services or tiers should the company select to meet these requirements? (Select TWO).

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Cevabı ve açıklamayı göster

Cevap: Amazon Elastic File System (Amazon EFS); Amazon S3 Standard-Infrequent Access (S3 Standard-IA)

Cevap

Amazon Elastic File System (Amazon EFS) and Amazon S3 Standard-Infrequent Access (S3 Standard-IA)
The scenario requires shared file access for raw footage, which is best served by Amazon Elastic File System (Amazon EFS) because it allows multiple instances to read and write to the same storage system simultaneously. For the final exports that are infrequently accessed but require immediate retrieval, Amazon S3 Standard-Infrequent Access (S3 Standard-IA) is the correct tier because it matches the access pattern while providing lower cost than S3 Standard and millisecond access times.

Adım Adım Çözüm

1
Analyze the first requirement: concurrent, shared file-level storage for multiple EC2 instances.
Identify Amazon Elastic File System (Amazon EFS) as the service that supports shared file access across multiple instances simultaneously using the NFS protocol.
Block storage options like EBS do not support this standard multi-instance shared write capability natively.
2
Analyze the second requirement: low-cost storage for infrequently accessed objects that must be available immediately for download.
Identify Amazon S3 Standard-Infrequent Access (S3 Standard-IA) as the tier that provides low-cost storage with millisecond access times.
S3 Glacier tiers are lower cost but require minutes to hours for retrieval, which does not meet the immediate access requirement.

Anahtar Kavram

Selecting appropriate AWS storage services based on access pattern, durability, and sharing requirements.
Tahmini Süre:1m 30s
Soru 1262Soru →

A company has deployed two web applications in two different Amazon Virtual Private Clouds (VPCs) within the same AWS Region. The company needs to enable private network traffic between these two VPCs. Which AWS feature provides a direct, peer-to-peer network connection between two VPCs?

Cevabı ve açıklamayı göster

Cevap: VPC Peering

Cevap

VPC Peering
VPC Peering is the correct answer because it allows the routing of traffic between two VPCs privately using private IP addresses. It functions as a direct connection without relying on gateways, VPNs, or physical hardware.

Adım Adım Çözüm

1
Identify the primary requirement.
The requirement is to establish a direct, private, peer-to-peer network connection between two Amazon VPCs.
This helps narrow down the service choices to VPC routing and peering features.
2
Evaluate the connectivity options.
VPC Peering provides a simple, direct link between two VPCs. AWS Transit Gateway is designed for connecting multiple VPCs and on-premises networks in a hub-and-spoke topology, which exceeds the simple peer-to-peer requirement.
Selecting the most appropriate service based on scale and direct routing principles.

Anahtar Kavram

VPC Peering provides a direct connection between two VPCs, allowing them to route traffic privately as if they were on the same network.
Soru 1263Soru →

A business is deploying a legacy database server that must run continuously 24/7 for a predictable duration of one year. Which Amazon EC2 pricing model should the business select to achieve the highest cost savings for this workload?

Cevabı ve açıklamayı göster

Cevap: Reserved Instances

Cevap

Reserved Instances
The correct answer is Reserved Instances because they are designed specifically for workloads with predictable, steady-state usage. Committing to a one-year or three-year term allows the business to secure a substantial discount compared to On-Demand pricing, which fits the database server's continuous running requirement perfectly.

Adım Adım Çözüm

1
Analyze the workload characteristics
The database workload is steady-state, predictable, runs continuously 24/7, and has a defined duration of one year.
Identifying workload requirements is the first step in matching them to the correct pricing model.
2
Evaluate the AWS pricing options based on cost-efficiency and commitment
Reserved Instances match the one-year steady-state commitment requirement, offering the best cost savings compared to On-Demand, while avoiding the interruption risk of Spot Instances.
Selecting the option that minimizes cost while meeting the availability requirements ensures a reliable and optimized deployment.

Anahtar Kavram

AWS Pricing Models
Soru 1264Soru →

A company is developing a new mobile application backend that performs simple database lookups, with each request completing in under a second. The application's usage is highly sporadic, with long periods of inactivity followed by sudden bursts of user activity. To minimize costs and administrative effort, the company wants a compute solution that requires zero server management, charges only for the exact duration of code execution, and eliminates the responsibility of operating system patching.

Which AWS compute service should the company choose to meet these requirements?

Cevabı ve açıklamayı göster

Cevap: AWS Lambda functions

Cevap

AWS Lambda functions
AWS Lambda is a serverless, event-driven compute service that runs code in response to events and automatically manages the underlying compute infrastructure. Since it charges only for the duration of active execution and incurs zero cost when idle, it perfectly aligns with the sporadic workload scenario. Because AWS manages the underlying servers, operating system patching is fully handled by AWS, eliminating that operational burden for the customer.

Adım Adım Çözüm

1
Analyze the workload characteristics and operational constraints.
The workload has sporadic traffic (idle periods), fast execution (<1 second), and requires zero server management and no OS patching responsibility.
This establishes the criteria for evaluating the compute services.
2
Evaluate the pricing and management model of each service.
AWS Lambda is serverless, event-driven, charges only for execution duration, and offloads all OS patching and infrastructure administration to AWS.
Matching these features to the requirements identifies the correct compute service.

Anahtar Kavram

AWS serverless compute advantages and shared responsibility boundaries
Tahmini Süre:1m 30s
Soru 1265Soru →

A university department manages three separate AWS accounts for different research projects. The administrator wants to combine the payments for these accounts and aggregate their storage volume to qualify for lower pricing tiers on Amazon S3. Which AWS Organizations feature directly supports this requirement?

Cevabı ve açıklamayı göster

Cevap: Consolidated billing

Cevap

Consolidated billing
Consolidated billing enables organizations to consolidate payment for multiple AWS accounts. By combining accounts under a single paying account, AWS aggregates the usage from all member accounts, allowing them to reach volume pricing tiers (such as S3 storage discounts) faster than they would individually.

Adım Adım Çözüm

1
Identify the goal of the administrator, which is to combine payments for multiple AWS accounts and aggregate resource usage to qualify for volume pricing tiers.
The administrator needs a billing feature of AWS Organizations that links accounts and pools their usage.
Understanding the requirement helps isolate the correct organization-level billing feature.
2
Evaluate the available features of AWS Organizations and billing tools against this goal.
Consolidated billing is the specific feature designed to consolidate payments and aggregate usage for volume discounts, whereas other options like SCPs are for permissions, and Cost Explorer or tags are for analysis and tracking.
Comparing features ensures the selected option directly addresses both the unified payment and the volume discount requirement.

Anahtar Kavram

Consolidated billing allows organizations to combine payment for multiple member accounts, providing a single bill and aggregating usage to qualify for volume pricing discounts.
Tahmini Süre:45s
Soru 1266Soru →

A company is hosting a database cluster in a private subnet of an Amazon VPC. The security team requires a firewall solution that operates at the subnet boundary to block specific malicious traffic before it reaches any instances, regardless of their individual configurations. Which AWS feature should the company configure to meet this subnet-level security requirement?

Cevabı ve açıklamayı göster

Cevap: Network Access Control List (Network ACL)

Cevap

Network Access Control List (Network ACL)
The correct answer is Network Access Control List (Network ACL) because it acts as a stateless firewall that controls inbound and outbound traffic at the subnet boundary, applying to all instances inside that subnet.

Adım Adım Çözüm

1
Identify the level of network control required in the scenario.
The scenario specifies a requirement for a firewall that operates at the subnet boundary (subnet-level control).
This helps narrow down the choices between instance-level and subnet-level security features.
2
Evaluate the capabilities of the available network security options.
Network Access Control Lists (NACLs) operate at the subnet level and apply rules to all instances within that subnet, whereas security groups operate at the individual instance level.
Choosing the service that aligns with the subnet boundary requirement satisfies the security team's constraints.

Anahtar Kavram

AWS Network Security at the Subnet Level
Tahmini Süre:1m 0s
Soru 1267Soru →

A retail company is setting up two workloads on Amazon EC2. The first workload is a steady-state inventory application that must run continuously 24/7 for a one-year period. The second workload is a series of data analysis batch jobs that are flexible, fault-tolerant, and can be interrupted. Which TWO Amazon EC2 pricing models will provide the most cost-effective solution for these workloads? (Select TWO).

Geçerli olan tümünü seçin

Cevabı ve açıklamayı göster

Cevap: Reserved Instances for the steady-state inventory application; Spot Instances for the flexible batch data analysis jobs

Cevap

Reserved Instances for the steady-state inventory application and Spot Instances for the flexible batch data analysis jobs
Reserved Instances are the most cost-effective option for steady-state workloads with a predictable one-year or three-year duration, offering significant discounts compared to On-Demand. Spot Instances provide the greatest cost savings (up to 90%) for flexible, fault-tolerant workloads like batch processing that can handle interruptions.

Adım Adım Çözüm

1
Analyze the first workload requirement.
The inventory application runs continuously 24/7 for a defined duration of one year. This represents a predictable, steady-state workload.
Identifying workload predictability is the first step in matching it to the correct AWS pricing model.
2
Select the optimal pricing model for the first workload.
Reserved Instances are chosen because they offer discounts up to 72% in exchange for a committed term of one or three years, matching the one-year requirement.
Reserved Instances maximize cost savings for steady-state, predictable workloads over a long term.
3
Analyze the second workload requirement.
The batch data analysis jobs are flexible, fault-tolerant, and can be interrupted.
Determining fault tolerance helps identify whether interruptible capacity can be utilized.
4
Select the optimal pricing model for the second workload.
Spot Instances are selected because they utilize spare AWS capacity at up to a 90% discount and are ideal for workloads that can tolerate interruptions.
Spot Instances provide the highest cost savings for workloads with flexible start and end times that can handle interruptions.

Anahtar Kavram

Selecting the most cost-effective Amazon EC2 pricing model based on workload characteristics such as predictability, runtime continuity, and fault tolerance.
Tahmini Süre:1m 0s
Soru 1268Soru →

TerraGrow, a smart agriculture startup, runs a telemetry platform that ingests moisture and temperature data from soil sensors. The data volume increases tenfold during spring planting and autumn harvesting seasons, but drops to near zero during winter. Historically, TerraGrow had to provision physical servers to handle peak demand, resulting in low utilization and high idle costs during off-seasons. The company is migrating this workload to AWS to leverage cloud economics. Which of the following cloud economic concepts best addresses TerraGrow's seasonal utilization challenge?

Cevabı ve açıklamayı göster

Cevap: The cost benefits of elasticity, which allows the company to dynamically scale resource capacity up and down to match demand, paying only for what is used.

Cevap

The cost benefits of elasticity, which allows the company to dynamically scale resource capacity up and down to match demand, paying only for what is used.
The correct answer is the concept of elasticity. Elasticity allows resources to dynamically adjust to match demand cycles, eliminating idle capacity during off-seasons and reducing overall costs.

Adım Adım Çözüm

1
Analyze the business scenario and identify the workload characteristics.
The workload is highly variable and seasonal, with high demand during planting/harvesting and very low demand during winter.
Understanding workload pattern helps identify the correct financial optimization approach.
2
Evaluate cloud economics principles that align with variable demand.
Elasticity enables automated resource adjustment to match demand, replacing the need to provision for peak capacity upfront.
This directly minimizes costs during low-utilization periods and eliminates idle capacity overhead.

Anahtar Kavram

The economic benefit of elasticity and paying for what is used, eliminating idle capacity.
Tahmini Süre:1m 30s
Soru 1269Soru →

A technology startup is deploying an application that requires high availability within a single geographic area. The team plans to distribute the application's resources across multiple Availability Zones (AZs). Which statement correctly describes the architectural relationship between AWS Regions and Availability Zones?

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Cevap: An AWS Region is a geographic area that contains multiple, physically separated and isolated Availability Zones.

Cevap

An AWS Region is a geographic area that contains multiple, physically separated and isolated Availability Zones.
The correct option correctly states that an AWS Region is a geographic area that contains multiple, physically separated and isolated Availability Zones. This design ensures that if one zone is affected by a local disaster, the others remain operational, supporting high availability.

Adım Adım Çözüm

1
Analyze the hierarchy of the AWS Global Infrastructure.
Identify that AWS Regions represent the top-level geographic divisions, while Availability Zones (AZs) exist inside these Regions.
Understanding this hierarchy is necessary to eliminate options that invert the relationship between Regions and AZs.
2
Determine the physical definition of an Availability Zone.
Recall that an Availability Zone consists of one or more physical data centers, and a Region contains multiple AZs.
This helps rule out options that define an AZ as only a single data center or a single building floor, or suggest a Region contains only one AZ.
3
Select the option that correctly describes both hierarchy and physical independence.
The statement explaining that an AWS Region is a geographic area containing multiple isolated Availability Zones is correct.
This aligns with AWS Global Infrastructure design principles for fault isolation and high availability.

Anahtar Kavram

AWS Regions and Availability Zones Architecture
Soru 1270Soru →

A retail company is planning to deploy two new workloads on AWS:

1. A simple promotional blog that requires a pre-configured software stack, easy setup, and a predictable monthly price.
2. A containerized backend application packaged in Docker containers that must scale dynamically with traffic, while avoiding the operational overhead of provisioning, patching, or scaling virtual machine instances.

Which of the following compute services should the company select to host these workloads? (Select TWO.)

Geçerli olan tümünü seçin

Cevabı ve açıklamayı göster

Cevap: Amazon Lightsail; AWS Fargate

Cevap

Amazon Lightsail and AWS Fargate
Amazon Lightsail is the correct choice for the simple blog because it provides a packaged virtual private server with a pre-configured software stack (like WordPress) and a predictable monthly pricing bundle. AWS Fargate is the correct choice for the containerized application because it provides a serverless execution environment for Docker containers, scaling dynamically without requiring the customer to patch or manage any underlying virtual servers.

Adım Adım Çözüm

1
Analyze the first requirement for hosting a simple blog with a pre-configured stack and predictable pricing.
Amazon Lightsail is selected because it is designed for simple, predictable VPS deployments.
It simplifies setup for blogs (like WordPress) and packages resources into a single predictable monthly fee.
2
Analyze the second requirement for a containerized application that scales without managing virtual servers.
AWS Fargate is selected as the serverless container runtime environment.
Fargate allows running Docker containers dynamically under Amazon ECS without managing EC2 instances or operating systems.

Anahtar Kavram

Evaluating AWS compute services based on deployment simplicity, billing predictability, and the division of operational management responsibilities.
Soru 1271Soru →

A financial analytics company is running a simulation application on Amazon EC2. The application generates a massive volume of temporary scratch data during each analysis run. This data requires sub-millisecond, high-throughput read/write operations. The data is regenerated in subsequent runs, meaning the company does not need it to persist if the EC2 instance is stopped or terminated. Which AWS storage option is the most cost-effective and provides the lowest latency for this workload?

Cevabı ve açıklamayı göster

Cevap: Amazon EC2 Instance Store

Cevap

Amazon EC2 Instance Store
Amazon EC2 Instance Store is the ideal solution because it provides temporary block-level storage physically attached to the host system. This direct attachment ensures the lowest latency and highest throughput. Because the storage is temporary, the data is lost when the instance is stopped or terminated, which matches the requirement that scratch data does not need to persist. Additionally, instance store is included in the cost of the EC2 instance, making it the most cost-effective choice.

Adım Adım Çözüm

1
Analyze the application requirements.
The application requires high-throughput, sub-millisecond latency storage for temporary scratch data that does not need to persist if the instance terminates.
This helps filter storage options based on durability, latency, and cost.
2
Compare AWS storage options against these requirements.
An EC2 Instance Store is physically attached to the host, offering very low latency, and its lifecycle is tied to the instance (data is lost on instance stop/termination), which matches the non-persistent requirement at no extra cost. EBS and EFS provide persistent storage with higher latencies or higher costs.
Matching the features of AWS storage services to determine the most cost-effective and highest-performing option.

Anahtar Kavram

AWS temporary vs persistent block storage options
Tahmini Süre:1m 30s
Soru 1272Soru →

A smart agriculture company wants to analyze their AWS usage patterns over the last 12 months to identify which specific Elastic Compute Cloud (EC2) instances are contributing to monthly cost increases. Which AWS service or tool should they use to visualize these historical trends?

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Cevap: AWS Cost Explorer

Cevap

AWS Cost Explorer is the correct tool to visualize and analyze historical AWS costs and usage trends.
AWS Cost Explorer is the correct tool because it provides a visual interface to query and view your historical cost and usage data, enabling you to identify cost drivers, analyze trends, and view data at various granularities.

Adım Adım Çözüm

1
Identify the primary requirement in the scenario.
The requirement is to analyze and visualize historical AWS usage patterns and costs over the past 12 months.
This determines whether a predictive, proactive, or retrospective analytical tool is needed.
2
Evaluate the capabilities of the available AWS Billing and Cost Management tools.
AWS Cost Explorer is specifically built to visualize and analyze historical cost and usage data.
Choosing the correct tool requires distinguishing between proactive budgeting (AWS Budgets), pre-migration estimation (AWS Pricing Calculator), and retrospective analysis (AWS Cost Explorer).

Anahtar Kavram

AWS Cost Explorer
Tahmini Süre:1m 0s
Soru 1273Soru →

A cloud architect is evaluating different AWS compute options for a suite of application workloads. Each workload has specific requirements regarding control, scaling, and management overhead. Which AWS compute service is the most appropriate choice for each of the described workloads?

Soldaki öğeye tıklayın, sonra eşleşen sağdaki öğeye tıklayın

Öğeler

AWS Lambda
AWS Fargate
AWS Elastic Beanstalk
Amazon EC2

Eşleşmeler

Cevabı ve açıklamayı göster

Cevap

AWS Lambda matches the stateless IoT telemetry processor. AWS Fargate matches the continuous serverless containerized microservice. AWS Elastic Beanstalk matches the web application requiring quick deployment with infrastructure control. Amazon EC2 matches the database requiring root-level access and custom OS configurations.
Each compute service must be matched to the workload requirement that aligns with its operational model, level of management, and scaling characteristics. Amazon EC2 matches the database requiring root-level control. AWS Lambda matches the event-driven telemetry processing. AWS Elastic Beanstalk matches the quick web application deployment with infrastructure control. AWS Fargate matches the serverless container execution.

Adım Adım Çözüm

1
Analyze the requirements for each workload to identify key characteristics such as administrative control, management model (PaaS, serverless, or IaaS), scaling needs, and application packaging (containers vs. code vs. virtual machines).
Workload 1 needs event-driven, zero-idle-cost scaling. Workload 2 needs serverless container execution. Workload 3 needs simple code deployment (PaaS) but with infrastructure control. Workload 4 needs full OS/kernel control.
Understanding key differentiators helps map each workload to the correct service.
2
Match each requirement to the corresponding AWS compute service based on their architectural features.
AWS Lambda is selected for event-driven telemetry (zero idle cost). AWS Fargate is selected for serverless container orchestration. AWS Elastic Beanstalk is selected for code-based web deployment with underlying control. Amazon EC2 is selected for full OS root/kernel control.
Matching aligned capabilities ensures optimal architecture.

Anahtar Kavram

Selecting the appropriate AWS compute service based on workload requirements including control, scaling, and serverless options.
Tahmini Süre:2m 0s
Soru 1274Soru →

A media streaming startup is analyzing its operational costs on AWS. The finance team needs to visualize historical spend patterns for their video encoding workloads over the past six months, and they also want to receive automated email notifications if their monthly EC2 spending exceeds a budget threshold of $5,000. Which AWS Billing and Cost Management tools should the startup use to meet these requirements? (Select TWO)

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Cevabı ve açıklamayı göster

Cevap: AWS Cost Explorer; AWS Budgets

Cevap

AWS Cost Explorer and AWS Budgets are the correct tools for these requirements.
AWS Cost Explorer is the correct choice for analyzing past cost trends visually over the six-month period. AWS Budgets is the correct choice for defining cost thresholds and triggering email notifications when the EC2 spend limit is exceeded.

Adım Adım Çözüm

1
Analyze the visualization requirement.
The startup needs to visualize past cost trends over a six-month period. AWS Cost Explorer is selected for its built-in historical reporting and visualization features.
AWS Cost Explorer is the default tool for visual analytics and historical analysis of AWS costs.
2
Analyze the alerting requirement.
The startup needs automated email notifications if monthly EC2 spend exceeds $5,000. AWS Budgets is selected to set up threshold alerts.
AWS Budgets is the primary service designed to actively monitor costs against defined budget thresholds and trigger alerts.

Anahtar Kavram

Differentiating between proactive budgeting/alerting tools and reactive cost visualization tools on AWS.
Soru 1275Soru →

A financial services company is planning its migration to the AWS Cloud and is evaluating different support tiers. The company's compliance policy requires that they have access to Technical Account Management (TAM) services—either through a dedicated advisor or a shared pool of experts—to assist with operational reviews and architectural guidance. Which of the following AWS Support plans will satisfy this specific requirement? (Select TWO.)

Geçerli olan tümünü seçin

Cevabı ve açıklamayı göster

Cevap: Enterprise On-Ramp Support; Enterprise Support

Cevap

Enterprise Support and Enterprise On-Ramp Support satisfy the requirements because they are the only tiers that include Technical Account Management (TAM) access (either as a designated resource or via a pool).
Enterprise Support and Enterprise On-Ramp Support are the only AWS Support plans that provide access to Technical Account Managers (TAMs). Enterprise Support provides a designated TAM, while Enterprise On-Ramp Support provides access to a pool of TAMs. Both plans meet the requirement for architectural guidance and operational reviews coordinated by TAM resources.

Adım Adım Çözüm

1
Identify the core requirement from the scenario.
The company requires access to Technical Account Management (TAM) services (either a dedicated TAM or a shared pool of TAMs) for architectural guidance and operational reviews.
This requirement narrows down the eligible AWS Support tiers.
2
Evaluate the support options for TAM availability.
Basic, Developer, and Business Support plans do not include any access to a Technical Account Manager (TAM). Enterprise On-Ramp Support provides access to a pool of TAMs, and Enterprise Support provides a designated TAM.
Comparing each plan's features against the TAM requirement helps select the correct tiers.
3
Select the two plans that meet the criteria.
Enterprise On-Ramp Support and Enterprise Support both satisfy the requirement.
Both plans match the need for TAM-level guidance (pooled and designated, respectively).

Anahtar Kavram

AWS Support Plans features and access to Technical Account Managers (TAMs).
Tahmini Süre:2m 0s
Soru 1276Soru →

A digital marketing agency is launching a short-term advertising campaign that will run a promotional website continuously for exactly 10 days. The website requires guaranteed, uninterrupted availability during this period, and the agency wants to avoid any upfront costs or long-term commitments. Which Amazon EC2 pricing model is the most appropriate for this workload?

Cevabı ve açıklamayı göster

Cevap: On-Demand Instances

Cevap

On-Demand Instances
On-Demand Instances allow you to pay for compute capacity by the hour or second with no long-term commitments or upfront payments. This model guarantees that the instance will not be interrupted, making it perfect for short-term, critical workloads like a 10-day promotional website.

Adım Adım Çözüm

1
Analyze the workload requirements from the scenario.
The workload is short-term (10 days), requires uninterrupted availability (guaranteed uptime for a website), and requires no upfront costs or long-term contracts.
Understanding the specific constraints of the workload helps eliminate pricing models that require long-term commitments or allow interruptions.
2
Evaluate the available EC2 pricing models against these requirements.
Spot Instances can be interrupted, failing the availability requirement. Reserved Instances and Savings Plans require 1-year or 3-year commitments, failing the short-term and contract-free requirement. On-Demand Instances fit all criteria.
Comparing the characteristics of each EC2 pricing model to the workload constraints identifies the optimal model.

Anahtar Kavram

AWS Pricing Models
Soru 1277Soru →

An application developer is deploying an online portal on an Amazon EC2 instance. To meet security requirements, the developer must permit incoming traffic only on HTTPS port 443 and ensure that all return traffic is automatically allowed without configuring additional rules. Which AWS networking feature should the developer configure directly on the instance to meet these requirements?

Cevabı ve açıklamayı göster

Cevap: Security Group

Cevap

Security Group
The security group is the correct answer because it operates at the instance level and is stateful. Stateful firewalls automatically allow return traffic for any established connection, eliminating the need to write separate outbound rules for inbound requests.

Adım Adım Çözüm

1
Analyze the traffic scope and control level required by the scenario.
The requirement specifies controlling traffic directly on the instance (instance-level firewall) and automatically allowing return traffic (stateful behavior).
AWS provides firewalls at different levels: security groups at the instance level and network ACLs at the subnet level.
2
Compare the characteristics of Security Groups and Network ACLs.
Security groups are stateful and apply to instances, while Network ACLs are stateless and apply to subnets.
Since the scenario requires stateful behavior (return traffic automatically allowed) at the instance level, a security group is the only matching option.

Anahtar Kavram

VPC security features including Security Groups and Network ACLs
Soru 1278Soru →

ChroniclePage, a digital publishing platform, is migrating its legacy content delivery system to AWS. The platform experiences high traffic volatility, with traffic peaking during major breaking news events and dropping significantly during late-night hours. The CFO wants to understand the economic advantages of this migration. Which two of the following describe the primary cloud economics benefits that ChroniclePage will realize after migrating to AWS?

Geçerli olan tümünü seçin

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Cevap: Shifting from upfront capital expenditures (CapEx) for physical hardware to a variable operating expenditure (OpEx) model.; Leveraging elasticity to dynamically align resource supply with fluctuating traffic, reducing the cost of idle capacity.

Cevap

The correct benefits are shifting from upfront capital expenditures (CapEx) for physical hardware to a variable operating expenditure (OpEx) model, and leveraging elasticity to dynamically align resource supply with fluctuating traffic.
The correct options describe shifting from upfront capital expenditures (CapEx) for physical hardware to a variable operating expenditure (OpEx) model, and leveraging elasticity to dynamically align resource supply with fluctuating traffic. By migrating to AWS, ChroniclePage avoids high initial hardware costs (CapEx) and instead pays variable operational fees (OpEx). Using elasticity, the platform dynamically scales down during low-traffic periods, preventing financial waste from idle capacity.

Adım Adım Çözüm

1
Analyze ChroniclePage's business scenario and workload characteristics.
The workload has high traffic volatility with sharp peaks (breaking news) and valleys (late-night hours).
Understanding the traffic pattern helps identify how cloud elasticity impacts resource consumption and costs.
2
Evaluate the financial impact of shifting from on-premises data centers to AWS.
On-premises requires capital expenses (CapEx) for hardware, whereas AWS uses a pay-as-you-go operating expenditure (OpEx) model.
Shifting from CapEx to OpEx allows the company to avoid heavy upfront investments and instead pay variable operational costs.
3
Assess how elasticity addresses the cost of volatile workloads.
Elasticity allows the infrastructure to scale up or down automatically, matching resources to actual demand and eliminating the cost of idle servers.
Elasticity directly reduces waste, optimizing the Total Cost of Ownership (TCO) compared to static over-provisioning.

Anahtar Kavram

Cloud economics concepts including CapEx to OpEx shift and the financial benefits of elasticity
Tahmini Süre:1m 30s
Soru 1279Soru →

A retail company is migrating its invoice processing system to AWS. The system generates millions of customer invoice PDF documents that must be immediately accessible for the first 30 days. After 30 days, the invoices are rarely accessed but must be stored securely for 7 years to meet regulatory compliance requirements. If access is needed after 30 days, a retrieval time of 3 to 5 hours is acceptable. The company wants to implement a cost-optimized storage strategy.

Which of the following AWS storage solutions should the company use to meet these requirements? (Select TWO.)

Geçerli olan tümünü seçin

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Cevap: Amazon S3 Standard to store the active invoices during the initial 30-day period; Amazon S3 Glacier Flexible Retrieval to archive the invoices for the 7-year retention period

Cevap

Amazon S3 Standard should be used for the initial 30 days of active storage, and Amazon S3 Glacier Flexible Retrieval should be used for the 7-year archiving period.
Amazon S3 Standard is selected for the first 30 days because it offers low-latency, high-throughput access to object-based files like PDFs. Amazon S3 Glacier Flexible Retrieval is selected for the remaining 7 years because it provides extremely low-cost archiving for cold data, with standard retrieval options meeting the 3 to 5-hour requirement.

Adım Adım Çözüm

1
Analyze the active storage requirements
The invoices are object files (PDFs) that must be immediately accessible for 30 days, requiring a high-availability, high-durability object storage class like Amazon S3 Standard.
This ensures immediate retrieval and reliable storage for active documents.
2
Analyze the compliance and archival requirements
The invoices must be kept for 7 years for compliance, are rarely accessed, and can tolerate a retrieval time of 3 to 5 hours, matching the capabilities of Amazon S3 Glacier Flexible Retrieval.
This minimizes storage costs while complying with the regulatory requirements and retrieval window.

Anahtar Kavram

AWS storage services selection based on data access patterns, durability, lifecycle, and cost efficiency.
Tahmini Süre:1m 30s
Soru 1280Soru →

A remote-sensing satellite data provider wants to review their daily data-transfer cost trends across different AWS Regions over the last 90 days. They also want to use this historical data to project their network transfer fees for the next two months to adjust their operating budget. Which AWS Billing and Cost Management tool is best suited for both visualizing these historical trends and creating the forecast?

Cevabı ve açıklamayı göster

Cevap: AWS Cost Explorer

Cevap

AWS Cost Explorer
AWS Cost Explorer is designed to let customers visualize, understand, and manage their AWS costs and usage over time. It provides interactive charts to view historical daily or monthly spend across multiple dimensions (such as AWS Region) and includes a machine learning-based forecasting engine to project costs for future periods based on those historical trends.

Adım Adım Çözüm

1
Identify the primary business requirement.
The requirement is to analyze actual historical spend (daily data-transfer trends over 90 days) and forecast future spend (next two months).
This determines whether a pre-deployment tool or a post-deployment tool is needed.
2
Differentiate between real-time alerting/custom billing versus cost visualization/forecasting.
Visualizing cost trends and projecting future costs based on historical usage requires visual analysis and forecasting features.
This rules out AWS Budgets (proactive alerting) and AWS Billing Conductor (custom pro forma pricing rules).
3
Select the tool designed for historical visualization and trend projection.
AWS Cost Explorer is selected, as it is the native tool for plotting historical spending data and generating cost forecasts.
This matches both the trend analysis and forecasting requirements of the scenario.

Anahtar Kavram

Using AWS Cost Explorer to visualize past trends and forecast future costs.
Tahmini Süre:2m 0s
ÖncekiSayfa 64 / 74Sonraki
Tüm alıştırma soruları — AWS Certified Cloud Practitioner | Examkin