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Amazon AWS Certified Solutions Architect - Professional SAP-C02 Bundle

Exam Code: AWS Certified Solutions Architect - Professional SAP-C02

Exam Name AWS Certified Solutions Architect - Professional SAP-C02

Certification Provider: Amazon

Corresponding Certification: AWS Certified Solutions Architect - Professional

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Amazon AWS Certified Solutions Architect - Professional SAP-C02 Practice Test 3

Question 20

A team is choosing AWS services for a specific workload, the decisive constraint is: An EC2 instance cannot reach a different VPC even though the networks are peered. Which recommendation best addresses the actual bottleneck?

  1. Allocate nonoverlapping VPC CIDRs centrally using Amazon VPC IP Address Manager
  2. Place it in a private subnet with a route to a NAT gateway in a public subnet
  3. Verify both VPC route tables include the peer CIDR targets and allow traffic via security controls
  4. Use a private translation or application proxy design rather than direct native VPC routing

Explanation

Correct Answer

C:

Verify both VPC route tables include the peer CIDR targets and allow traffic via security controls. Peering requires matching routes and security policies rather than automatic route propagation.

Incorrect Answers

A:

Allocate nonoverlapping VPC CIDRs centrally using Amazon VPC IP Address Manager solves the related scenario A new cloud landing zone will grow across dozens of accounts with unpredictable subnet expansion; iPAM pools coordinate hierarchical address allocation and overlap prevention.

B:

Although Place it in a private subnet with a route to a NAT gateway in a public subnet can be valid when A private EC2 workload must access software updates on the internet without accepting unsolicited inbound requests, it targets a different technical condition. NAT gateway provides outbound IPv4 translation without direct public inbound routing.

D:

This alternative, Use a private translation or application proxy design rather than direct native VPC routing, is appropriate when Two acquired VPCs use overlapping private CIDR blocks and must exchange application data. VPC peering and Transit Gateway routing cannot transparently route overlapping address ranges.

Question 21

A cloud platform team must address a specific requirement, the decisive constraint is: EC2 workers in private subnets must read S3 objects without crossing a NAT gateway. What should the architect implement?

  1. Add a bucket policy condition on aws:sourceVpce for the approved endpoint
  2. Configure a DynamoDB gateway endpoint with routes in the relevant VPC route tables
  3. Add an S3 gateway VPC endpoint and attach it to the workers subnet route tables
  4. Create an interface VPC endpoint for that supported AWS service with private DNS enabled

Explanation

Correct Answer

C:

Add an S3 gateway VPC endpoint and attach it to the workers subnet route tables. Gateway endpoints keep supported S3 routes inside AWS and avoid NAT data processing.

Incorrect Answers

A:

Add a bucket policy condition on aws:sourceVpce for the approved endpoint would address a different requirement: A security team wants to restrict S3 buckets to requests traversing one approved gateway endpoint. Resource-policy endpoint conditions restrict the network path that may access the bucket.

B:

This alternative, Configure a DynamoDB gateway endpoint with routes in the relevant VPC route tables, is appropriate when A private subnet needs to reach DynamoDB directly without consuming NAT gateway bandwidth. DynamoDB gateway endpoints provide private VPC-to-service connectivity through AWS routing.

D:

Create an interface VPC endpoint for that supported AWS service with private DNS enabled solves the related scenario A VPC workload must call an AWS API using private IP addresses without an internet gateway; interface endpoints expose supported service APIs through elastic network interfaces.

Question 22

While investigating a cross-account AWS design, the decisive constraint is: On-premises clients need private connectivity to a service exposed through an endpoint service. Which technical choice resolves the stated issue?

  1. Add a bucket policy condition on aws:sourceVpce for the approved endpoint
  2. Add an S3 gateway VPC endpoint and attach it to the workers subnet route tables
  3. Publish a Network Load Balancer-backed endpoint service with AWS PrivateLink and approve consumers
  4. Create an interface VPC endpoint for that supported AWS service with private DNS enabled

Explanation

Correct Answer

C:

Publish a Network Load Balancer-backed endpoint service with AWS PrivateLink and approve consumers. PrivateLink provides private service access without exposing the provider VPC route domain.

Incorrect Answers

A:

This alternative, Add a bucket policy condition on aws:sourceVpce for the approved endpoint, is appropriate when A security team wants to restrict S3 buckets to requests traversing one approved gateway endpoint. Resource-policy endpoint conditions restrict the network path that may access the bucket.

B:

For the separate situation EC2 workers in private subnets must read S3 objects without crossing a NAT gateway, Add an S3 gateway VPC endpoint and attach it to the workers subnet route tables could be useful. Gateway endpoints keep supported S3 routes inside AWS and avoid NAT data processing.

D:

Although Create an interface VPC endpoint for that supported AWS service with private DNS enabled can be valid when A VPC workload must call an AWS API using private IP addresses without an internet gateway, it targets a different technical condition. Interface endpoints expose supported service APIs through elastic network interfaces.

Question 23

During a regulated workload modernization proposal, the decisive constraint is: A VPC workload must call an AWS API using private IP addresses without an internet gateway. What is the most defensible implementation decision?

  1. Add an S3 gateway VPC endpoint and attach it to the workers subnet route tables
  2. Publish a Network Load Balancer-backed endpoint service with AWS PrivateLink and approve consumers
  3. Create an interface VPC endpoint for that supported AWS service with private DNS enabled
  4. Configure a DynamoDB gateway endpoint with routes in the relevant VPC route tables

Explanation

Correct Answer

C:

Create an interface VPC endpoint for that supported AWS service with private DNS enabled. Interface endpoints expose supported service APIs through elastic network interfaces.

Incorrect Answers

A:

For the separate situation EC2 workers in private subnets must read S3 objects without crossing a NAT gateway, Add an S3 gateway VPC endpoint and attach it to the workers subnet route tables could be useful. Gateway endpoints keep supported S3 routes inside AWS and avoid NAT data processing.

B:

Publish a Network Load Balancer-backed endpoint service with AWS PrivateLink and approve consumers solves the related scenario On-premises clients need private connectivity to a service exposed through an endpoint service; privateLink provides private service access without exposing the provider VPC route domain.

D:

Configure a DynamoDB gateway endpoint with routes in the relevant VPC route tables would address a different requirement: A private subnet needs to reach DynamoDB directly without consuming NAT gateway bandwidth. DynamoDB gateway endpoints provide private VPC-to-service connectivity through AWS routing.

Question 24

A principal solutions architect reviews an AWS application dependency, the decisive constraint is: A security team wants to restrict S3 buckets to requests traversing one approved gateway endpoint. Which architecture decision most directly satisfies the requirement?

  1. Create an interface VPC endpoint for that supported AWS service with private DNS enabled
  2. Configure a DynamoDB gateway endpoint with routes in the relevant VPC route tables
  3. Add a bucket policy condition on aws:sourceVpce for the approved endpoint
  4. Add an S3 gateway VPC endpoint and attach it to the workers subnet route tables

Explanation

Correct Answer

C:

Add a bucket policy condition on aws:sourceVpce for the approved endpoint. Resource-policy endpoint conditions restrict the network path that may access the bucket.

Incorrect Answers

A:

Create an interface VPC endpoint for that supported AWS service with private DNS enabled solves the related scenario A VPC workload must call an AWS API using private IP addresses without an internet gateway; interface endpoints expose supported service APIs through elastic network interfaces.

B:

Although Configure a DynamoDB gateway endpoint with routes in the relevant VPC route tables can be valid when A private subnet needs to reach DynamoDB directly without consuming NAT gateway bandwidth, it targets a different technical condition. DynamoDB gateway endpoints provide private VPC-to-service connectivity through AWS routing.

D:

This alternative, Add an S3 gateway VPC endpoint and attach it to the workers subnet route tables, is appropriate when EC2 workers in private subnets must read S3 objects without crossing a NAT gateway. Gateway endpoints keep supported S3 routes inside AWS and avoid NAT data processing.

Question 25

A business continuity assessment identifies the following constraint, the decisive constraint is: A private subnet needs to reach DynamoDB directly without consuming NAT gateway bandwidth. What is the most appropriate design under these constraints?

  1. Configure a DynamoDB gateway endpoint with routes in the relevant VPC route tables
  2. Add a bucket policy condition on aws:sourceVpce for the approved endpoint
  3. Publish a Network Load Balancer-backed endpoint service with AWS PrivateLink and approve consumers
  4. Create an interface VPC endpoint for that supported AWS service with private DNS enabled

Explanation

Correct Answer

A:

Configure a DynamoDB gateway endpoint with routes in the relevant VPC route tables. DynamoDB gateway endpoints provide private VPC-to-service connectivity through AWS routing.

Incorrect Answers

B:

Add a bucket policy condition on aws:sourceVpce for the approved endpoint would address a different requirement: A security team wants to restrict S3 buckets to requests traversing one approved gateway endpoint. Resource-policy endpoint conditions restrict the network path that may access the bucket.

C:

This alternative, Publish a Network Load Balancer-backed endpoint service with AWS PrivateLink and approve consumers, is appropriate when On-premises clients need private connectivity to a service exposed through an endpoint service. PrivateLink provides private service access without exposing the provider VPC route domain.

D:

For the separate situation A VPC workload must call an AWS API using private IP addresses without an internet gateway, Create an interface VPC endpoint for that supported AWS service with private DNS enabled could be useful. Interface endpoints expose supported service APIs through elastic network interfaces.

Question 26

A production readiness review reports the following problem, the decisive constraint is: A large VPC estate requires centrally managed stateful firewall inspection of east-west and egress flows. Which approach meets the stated objective with the least unnecessary complexity?

  1. Route traffic through a dedicated inspection VPC with AWS Network Firewall and Transit Gateway
  2. Use AWS Network Firewall firewall policies with centrally governed rule groups
  3. Enable Transit Gateway appliance mode for the inspection VPC attachment as appropriate
  4. Add appropriate domain-list rule groups to AWS Network Firewall

Explanation

Correct Answer

A:

Route traffic through a dedicated inspection VPC with AWS Network Firewall and Transit Gateway. Centralized firewall endpoints provide managed stateful inspection with a shared routing architecture.

Incorrect Answers

B:

For the separate situation Teams require a centrally operated packet filter at the organization boundary without distributing custom EC2 firewalls, Use AWS Network Firewall firewall policies with centrally governed rule groups could be useful. Managed firewall policies centralize stateful rule administration and avoid self-managed firewall fleets.

C:

Enable Transit Gateway appliance mode for the inspection VPC attachment as appropriate solves the related scenario A transparent inline appliance must inspect flows in both directions without losing connection state; appliance mode keeps bidirectional flows on a consistent appliance Availability Zone path.

D:

Although Add appropriate domain-list rule groups to AWS Network Firewall can be valid when An account must deny outbound access to an enumerated list of domain names at the VPC egress layer, it targets a different technical condition. Network Firewall supports stateful domain-based egress filtering in supported protocols.

Question 27

An AWS Well-Architected design review identifies a condition, the decisive constraint is: A transparent inline appliance must inspect flows in both directions without losing connection state. What should the architect implement?

  1. Enable Transit Gateway appliance mode for the inspection VPC attachment as appropriate
  2. Configure AZ-specific routes and inspection endpoints rather than hairpinning traffic across AZs
  3. Add appropriate domain-list rule groups to AWS Network Firewall
  4. Use AWS Network Firewall firewall policies with centrally governed rule groups

Explanation

Correct Answer

A:

Enable Transit Gateway appliance mode for the inspection VPC attachment as appropriate. Appliance mode keeps bidirectional flows on a consistent appliance Availability Zone path.

Incorrect Answers

B:

Configure AZ-specific routes and inspection endpoints rather than hairpinning traffic across AZs solves the related scenario An egress design must keep NAT and inspection traffic in the same Availability Zone where possible; aZ-local routing avoids unnecessary cross-AZ transfer and asymmetric inspection paths.

C:

Although Add appropriate domain-list rule groups to AWS Network Firewall can be valid when An account must deny outbound access to an enumerated list of domain names at the VPC egress layer, it targets a different technical condition. Network Firewall supports stateful domain-based egress filtering in supported protocols.

D:

Use AWS Network Firewall firewall policies with centrally governed rule groups would address a different requirement: Teams require a centrally operated packet filter at the organization boundary without distributing custom EC2 firewalls. Managed firewall policies centralize stateful rule administration and avoid self-managed firewall fleets.

Question 28

During an architecture migration cutover planning meeting, the decisive constraint is: An egress design must keep NAT and inspection traffic in the same Availability Zone where possible. Which technical choice resolves the stated issue?

  1. Configure AZ-specific routes and inspection endpoints rather than hairpinning traffic across AZs
  2. Enable Transit Gateway appliance mode for the inspection VPC attachment as appropriate
  3. Add appropriate domain-list rule groups to AWS Network Firewall
  4. Route traffic through a dedicated inspection VPC with AWS Network Firewall and Transit Gateway

Explanation

Correct Answer

A:

Configure AZ-specific routes and inspection endpoints rather than hairpinning traffic across AZs. AZ-local routing avoids unnecessary cross-AZ transfer and asymmetric inspection paths.

Incorrect Answers

B:

Although Enable Transit Gateway appliance mode for the inspection VPC attachment as appropriate can be valid when A transparent inline appliance must inspect flows in both directions without losing connection state, it targets a different technical condition. Appliance mode keeps bidirectional flows on a consistent appliance Availability Zone path.

C:

Add appropriate domain-list rule groups to AWS Network Firewall would address a different requirement: An account must deny outbound access to an enumerated list of domain names at the VPC egress layer. Network Firewall supports stateful domain-based egress filtering in supported protocols.

D:

This alternative, Route traffic through a dedicated inspection VPC with AWS Network Firewall and Transit Gateway, is appropriate when A large VPC estate requires centrally managed stateful firewall inspection of east-west and egress flows. Centralized firewall endpoints provide managed stateful inspection with a shared routing architecture.

Question 29

A team is choosing AWS services for a specific workload, the decisive constraint is: An account must deny outbound access to an enumerated list of domain names at the VPC egress layer. What is the most defensible implementation decision?

  1. Use AWS Network Firewall firewall policies with centrally governed rule groups
  2. Add appropriate domain-list rule groups to AWS Network Firewall
  3. Route traffic through a dedicated inspection VPC with AWS Network Firewall and Transit Gateway
  4. Enable Transit Gateway appliance mode for the inspection VPC attachment as appropriate

Explanation

Correct Answer

B:

Add appropriate domain-list rule groups to AWS Network Firewall. Network Firewall supports stateful domain-based egress filtering in supported protocols.

Incorrect Answers

A:

Although Use AWS Network Firewall firewall policies with centrally governed rule groups can be valid when Teams require a centrally operated packet filter at the organization boundary without distributing custom EC2 firewalls, it targets a different technical condition. Managed firewall policies centralize stateful rule administration and avoid self-managed firewall fleets.

C:

This alternative, Route traffic through a dedicated inspection VPC with AWS Network Firewall and Transit Gateway, is appropriate when A large VPC estate requires centrally managed stateful firewall inspection of east-west and egress flows. Centralized firewall endpoints provide managed stateful inspection with a shared routing architecture.

D:

For the separate situation A transparent inline appliance must inspect flows in both directions without losing connection state, Enable Transit Gateway appliance mode for the inspection VPC attachment as appropriate could be useful. Appliance mode keeps bidirectional flows on a consistent appliance Availability Zone path.

Question 30

During an AWS global infrastructure design review, the decisive constraint is: Teams require a centrally operated packet filter at the organization boundary without distributing custom EC2 firewalls. Which architecture decision most directly satisfies the requirement?

  1. Use AWS Network Firewall firewall policies with centrally governed rule groups
  2. Route traffic through a dedicated inspection VPC with AWS Network Firewall and Transit Gateway
  3. Configure AZ-specific routes and inspection endpoints rather than hairpinning traffic across AZs
  4. Add appropriate domain-list rule groups to AWS Network Firewall

Explanation

Correct Answer

A:

Use AWS Network Firewall firewall policies with centrally governed rule groups. Managed firewall policies centralize stateful rule administration and avoid self-managed firewall fleets.

Incorrect Answers

B:

This alternative, Route traffic through a dedicated inspection VPC with AWS Network Firewall and Transit Gateway, is appropriate when A large VPC estate requires centrally managed stateful firewall inspection of east-west and egress flows. Centralized firewall endpoints provide managed stateful inspection with a shared routing architecture.

C:

For the separate situation An egress design must keep NAT and inspection traffic in the same Availability Zone where possible, Configure AZ-specific routes and inspection endpoints rather than hairpinning traffic across AZs could be useful. AZ-local routing avoids unnecessary cross-AZ transfer and asymmetric inspection paths.

D:

Add appropriate domain-list rule groups to AWS Network Firewall solves the related scenario An account must deny outbound access to an enumerated list of domain names at the VPC egress layer; network Firewall supports stateful domain-based egress filtering in supported protocols.