View Full Amazon AWS Certified Advanced Networking – Specialty ANS-C01 Exam Dumps and Practice Test Dumps

 

Question 41. Which AWS service can provide private connectivity between a VPC and an AWS service without requiring an internet gateway?

1. AWS Global Accelerator
2. AWS PrivateLink
3. Amazon Route 53 public hosted zone
4. AWS Client VPN

Correct Answer: 2. AWS PrivateLink

Explanation:

AWS PrivateLink provides private connectivity between a VPC and supported services without requiring traffic to traverse the public internet. It uses interface VPC endpoints backed by elastic network interfaces within the consumer VPC. This approach is useful when applications need controlled access to services while minimizing network exposure and avoiding broad network connectivity between VPCs. PrivateLink can also be used by service providers to expose applications privately to consumers in other VPCs or AWS accounts. Global Accelerator focuses on application traffic acceleration, Route 53 provides DNS capabilities, and Client VPN supports remote-user connectivity. PrivateLink is therefore particularly valuable for private service-to-service communication.

Question 42. Which AWS component is required for a VPC subnet to communicate directly with the internet?

1. Internet Gateway
2. Route 53 Resolver
3. Transit Gateway
4. Network ACL

Correct Answer: 1. Internet Gateway

Explanation:

An Internet Gateway provides a logical connection between a VPC and the internet. For a resource in a public subnet to communicate directly with the internet, the VPC must have an Internet Gateway attached, and the relevant route table must contain an appropriate route to it. The resource also needs suitable addressing and security controls. An Internet Gateway is highly available and does not require capacity provisioning like a traditional network appliance. Route 53 Resolver handles DNS resolution, Transit Gateway connects networks, and network ACLs filter traffic. Therefore, the Internet Gateway is a fundamental component of a VPC architecture that requires direct internet connectivity.

Question 43. Which statement about a public subnet is correct?

1. It cannot contain an EC2 instance
2. It automatically makes every resource publicly accessible
3. Its route table contains a route to an Internet Gateway
4. It must use a NAT Gateway for all traffic

Correct Answer: 3. Its route table contains a route to an Internet Gateway

Explanation:

A subnet is generally considered public when its associated route table contains a route that directs internet-bound traffic to an Internet Gateway. However, simply placing a resource in a public subnet does not automatically make that resource publicly accessible. The resource also needs appropriate addressing and security configuration. Security groups, network ACLs, application configuration, and routing all influence whether communication is actually possible. A private subnet generally does not have a direct route to an Internet Gateway for outbound internet access and may use a NAT Gateway when required. Understanding this distinction is important because subnet classification depends primarily on routing rather than on the subnet name itself.

Question 44. Which AWS service provides a managed layer-7 load balancer for HTTP and HTTPS applications?

1. Network Load Balancer
2. Gateway Load Balancer
3. Application Load Balancer
4. Transit Gateway

Correct Answer: 3. Application Load Balancer

Explanation:

An Application Load Balancer operates at the application layer and is designed for HTTP and HTTPS traffic. It supports features such as host-based and path-based routing, allowing organizations to direct requests to different target groups based on application-level information. This makes it particularly useful for microservices and web applications where traffic needs to be routed according to domains, URL paths, or other HTTP characteristics. Network Load Balancer operates at lower network layers and is optimized for high-performance TCP, TLS, and UDP workloads, while Gateway Load Balancer supports deployment and scaling of virtual network appliances. Transit Gateway provides network connectivity rather than application load balancing.

Question 45. Which AWS load balancer is best suited for high-performance TCP, UDP, and TLS traffic?

1. Network Load Balancer
2. Application Load Balancer
3. Amazon CloudFront
4. Route 53

Correct Answer: 1. Network Load Balancer

Explanation:

Network Load Balancer is designed for high-performance network traffic and supports TCP, UDP, and TLS use cases. It can handle very large numbers of connections and is appropriate when applications require low latency, static IP addresses, or protocols that are not handled by an application-layer load balancer. Application Load Balancer is better suited for HTTP and HTTPS traffic where application-aware routing is needed. CloudFront is a content delivery network, while Route 53 provides DNS services. Selecting the appropriate load balancer depends on application protocol, routing requirements, performance characteristics, and architectural needs. Network Load Balancer is therefore appropriate for demanding transport-layer workloads.

Question 46. What is a key purpose of Gateway Load Balancer?

1. To provide DNS resolution
2. To deploy and scale virtual network appliances
3. To provide dedicated on-premises connectivity
4. To cache static website content

Correct Answer: 2. To deploy and scale virtual network appliances

Explanation:

Gateway Load Balancer is designed to help deploy, scale, and manage virtual network appliances such as firewalls, intrusion detection systems, intrusion prevention systems, and other security or inspection appliances. It uses a specialized architecture that allows traffic to be directed through these appliances while supporting scalability and availability. This is useful when organizations need centralized inspection or specialized network processing without manually managing complex load-balancing arrangements. Gateway Load Balancer is different from Application Load Balancer, which handles HTTP and HTTPS application traffic, and Network Load Balancer, which handles high-performance network traffic. It also does not provide DNS or dedicated hybrid connectivity.

Question 47. Which feature allows an Application Load Balancer to route requests based on the requested URL path?

1. Path-based routing
2. BGP routing
3. DNS forwarding
4. Prefix-list routing

Correct Answer: 1. Path-based routing

Explanation:

Path-based routing allows an Application Load Balancer to direct HTTP or HTTPS requests to different target groups based on the URL path in the request. For example, requests to /orders can be sent to one service while requests to /customers are directed to another. This capability is especially useful in microservice architectures where several applications share the same load balancer. Host-based routing can similarly route traffic according to the requested hostname. BGP is used for dynamic network route exchange, DNS forwarding handles name resolution, and prefix lists represent collections of network ranges. Path-based routing is therefore an application-layer traffic management capability.

Question 48. Which AWS service can provide TLS termination for supported load-balanced applications?

1. AWS Certificate Manager
2. Amazon S3
3. AWS Transit Gateway
4. Amazon Route 53 Resolver

Correct Answer: 1. AWS Certificate Manager

Explanation:

AWS Certificate Manager can provide and manage TLS certificates that can be associated with supported AWS services, including load balancers. When TLS termination is configured at an Application Load Balancer or another supported endpoint, the load balancer can handle the encrypted client connection while forwarding traffic to backend targets according to the configured architecture. Certificate Manager simplifies certificate provisioning, renewal, and deployment for supported use cases. It does not itself route packets or terminate every connection directly; rather, it supplies certificates to integrated services. S3 provides storage, Transit Gateway provides network connectivity, and Route 53 Resolver provides DNS resolution functionality.

Question 49. Which AWS service is designed to provide centralized connectivity between on-premises networks and multiple VPCs?

1. AWS Transit Gateway
2. Amazon CloudFront
3. AWS WAF
4. Amazon Route 53

Correct Answer: 1. AWS Transit Gateway

Explanation:

AWS Transit Gateway can serve as a centralized network hub connecting multiple VPCs and external networks. An organization can attach VPCs to the Transit Gateway and connect on-premises networks through AWS Direct Connect or Site-to-Site VPN. Routing tables associated with Transit Gateway can control which attachments can communicate and can support segmentation between different network groups. This architecture can reduce the complexity associated with managing numerous point-to-point connections. CloudFront is intended for content delivery, WAF protects web applications, and Route 53 provides DNS services. Transit Gateway is therefore an important building block for scalable hybrid and multi-VPC networking architectures.

Question 50. Which AWS networking option can connect VPCs in different AWS Regions privately?

1. AWS WAF
2. VPC peering
3. Amazon CloudFront
4. AWS Certificate Manager

Correct Answer: 2. VPC peering

Explanation:

VPC peering can provide private connectivity between VPCs, including VPCs located in different AWS Regions where supported. Inter-Region VPC peering allows resources to communicate using private IP addresses without requiring traffic to traverse the public internet. Appropriate route table entries and security controls are still required. VPC peering is a point-to-point relationship, so large environments with many VPCs may require a more centralized architecture such as Transit Gateway. WAF provides web application protection, CloudFront distributes content, and Certificate Manager manages certificates. Inter-Region VPC peering is therefore an option when direct private connectivity between two VPCs is required.

Question 51. Which routing approach is commonly used to advertise on-premises network prefixes to AWS through Direct Connect?

1. BGP
2. HTTP
3. DNS
4. FTP

Correct Answer: 1. BGP

Explanation:

BGP is commonly used with AWS Direct Connect to exchange routing information between an on-premises network and AWS. The customer network can advertise its prefixes to AWS, while AWS can advertise relevant AWS network prefixes back to the customer. Dynamic route exchange helps avoid manually maintaining large numbers of static routes and can support redundancy and route selection in multi-connection architectures. BGP attributes and routing policies can influence which path is preferred when multiple routes exist. HTTP, DNS, and FTP are application-level protocols and are not routing protocols used to exchange network prefixes over Direct Connect. Understanding BGP is therefore essential for hybrid network design and troubleshooting.

Question 52. Which BGP attribute can be used on a customer network to influence outbound path selection from the customer environment?

1. Local preference
2. DNS TTL
3. HTTP status code
4. MAC address

Correct Answer: 1. Local preference

Explanation:

Local preference is a BGP attribute commonly used within an autonomous system to influence which outbound route is preferred. A higher local preference is generally preferred, allowing network administrators to influence which exit path their network uses when multiple paths are available. In hybrid AWS environments with multiple Direct Connect or VPN connections, appropriate BGP policies can help control traffic flows and improve resilience. DNS TTL controls DNS caching and is unrelated to BGP route selection. HTTP status codes describe application responses, while MAC addresses identify network interfaces at the data-link layer. BGP policy design should be carefully planned because routing preferences can significantly affect traffic distribution and failover behavior.

Question 53. Which AWS service can provide a dedicated connection from a customer network to AWS using an AWS Direct Connect location?

1. AWS Direct Connect
2. AWS Client VPN
3. Amazon CloudFront
4. AWS WAF

Correct Answer: 1. AWS Direct Connect

Explanation:

AWS Direct Connect provides dedicated connectivity between a customer network and AWS through a Direct Connect location. It can support private connectivity to AWS resources and services through virtual interfaces and can be integrated with architectures involving Transit Gateway and Direct Connect gateways. Organizations commonly use Direct Connect when they need more predictable connectivity characteristics or want to reduce dependence on public internet paths for hybrid traffic. Client VPN is designed for remote-user connectivity, CloudFront is a content delivery service, and WAF provides web application protection. Direct Connect should still be designed with redundancy and appropriate routing because a single dedicated connection can become a point of failure.

Question 54. What is the purpose of a Direct Connect gateway?

1. To provide centralized connectivity between Direct Connect and supported AWS network resources
2. To replace all internet gateways
3. To provide DNS records
4. To inspect HTTP requests

Correct Answer: 1. To provide centralized connectivity between Direct Connect and supported AWS network resources

Explanation:

A Direct Connect gateway helps extend Direct Connect connectivity to supported AWS network resources across Regions and accounts depending on the architecture. It can provide a centralized association point for Direct Connect virtual interfaces and supported network constructs, helping organizations build scalable hybrid connectivity designs. Direct Connect gateways are particularly useful when a customer wants to connect on-premises networks through Direct Connect to multiple VPC environments without creating an independent physical connection for each VPC. They do not replace internet gateways, provide DNS records, or inspect HTTP requests. Understanding the role of Direct Connect gateways helps architects design scalable hybrid network connectivity.

Question 55. Which AWS service can provide centralized inspection of traffic between VPCs when integrated into an appropriate routing architecture?

1. AWS Network Firewall
2. Amazon S3
3. AWS Certificate Manager
4. Amazon Route 53

Correct Answer: 1. AWS Network Firewall

Explanation:

AWS Network Firewall can provide centralized network traffic inspection when integrated into an architecture with appropriate routing. Traffic can be directed through firewall endpoints so that security policies are applied consistently before the traffic reaches its destination. This can be useful for controlling traffic between network segments, VPCs, or external destinations depending on the architecture. Successful centralized inspection requires careful routing design, including consideration of return paths and availability across Availability Zones. Network Firewall is different from AWS WAF, which focuses primarily on web application traffic. S3 provides object storage, Certificate Manager handles certificates, and Route 53 provides DNS services.

Question 56. Which AWS service can protect applications against common web exploits such as SQL injection and cross-site scripting when appropriate rules are configured?

1. AWS WAF
2. AWS Transit Gateway
3. AWS Direct Connect
4. Amazon Route 53 Resolver

Correct Answer: 1. AWS WAF

Explanation:

AWS WAF can help protect supported web applications against common application-layer attacks when appropriate rules are configured. Managed and custom rules can inspect incoming HTTP and HTTPS requests and identify patterns associated with threats such as SQL injection or cross-site scripting. WAF should be configured according to the application’s traffic patterns and security requirements because poorly designed rules can block legitimate requests or fail to detect relevant threats. WAF is complementary to other security mechanisms rather than a complete security solution. Transit Gateway handles network connectivity, Direct Connect provides dedicated hybrid connectivity, and Route 53 Resolver provides DNS resolution and forwarding capabilities.

Question 57. Which AWS service provides a globally distributed edge network for accelerating delivery of static and dynamic content?

1. Amazon CloudFront
2. AWS Transit Gateway
3. AWS PrivateLink
4. AWS Site-to-Site VPN

Correct Answer: 1. Amazon CloudFront

Explanation:

Amazon CloudFront is a content delivery network that uses a globally distributed edge network to deliver static and dynamic content closer to users. CloudFront can cache content at edge locations, reducing the distance requests must travel to the origin and potentially improving latency and application performance. It can also integrate with security services such as AWS WAF and AWS Shield. Transit Gateway provides network connectivity between VPCs and other networks, PrivateLink provides private service connectivity, and Site-to-Site VPN provides encrypted network-to-network connectivity. CloudFront is therefore particularly useful for applications that serve content to geographically distributed users and need improved delivery performance.

Question 58. Which feature can help reduce latency for users by directing requests to an AWS endpoint based on network performance?

1. Amazon Route 53 latency-based routing
2. Network ACL
3. Security group
4. DHCP option set

Correct Answer: 1. Amazon Route 53 latency-based routing

Explanation:

Amazon Route 53 latency-based routing can direct DNS queries toward resources in AWS Regions that are expected to provide lower network latency for the requesting users. This can be useful for applications deployed across multiple Regions where user experience depends on reaching an appropriate regional endpoint. Route 53 evaluates configured latency information and responds with an endpoint associated with the Region that provides the lowest latency according to AWS measurements. This differs from security groups and network ACLs, which control traffic, and DHCP option sets, which provide network configuration information. Latency-based routing can be combined with health checks and other architectural techniques to improve application availability and user experience.

Question 59. Which AWS networking feature can help enforce centralized routing policies for different groups of VPC attachments?

1. Transit Gateway route tables
2. CloudFront cache policies
3. Route 53 health checks
4. AWS WAF rule groups

Correct Answer: 1. Transit Gateway route tables

Explanation:

Transit Gateway route tables allow organizations to control how traffic is routed between Transit Gateway attachments. Different route tables can be associated and propagated according to the desired network segmentation model, allowing organizations to separate environments such as production, development, shared services, and inspection networks. This provides greater control than simply attaching every VPC to one unrestricted routing domain. CloudFront cache policies control content caching, Route 53 health checks evaluate endpoint health, and WAF rule groups control web requests. Transit Gateway route tables are therefore an important mechanism for implementing centralized network segmentation and routing policies in large AWS environments.

Question 60. A company needs to securely connect its corporate users to private AWS applications from remote locations. Which solution is most appropriate?

1. Amazon CloudFront only
2. AWS Client VPN
3. AWS Global Accelerator
4. Amazon Route 53 public DNS

Correct Answer: 2. AWS Client VPN

Explanation:

AWS Client VPN is designed for secure remote-user access to private AWS resources. It provides encrypted VPN connectivity between authorized users and the AWS environment and can be integrated with authentication and authorization mechanisms. This makes it suitable for employees or administrators who need access to private applications while working from remote locations. CloudFront is intended for application and content delivery, Global Accelerator optimizes global application traffic, and public Route 53 DNS does not itself provide private network access. Client VPN should be integrated with appropriate security groups, routing, authentication, and access-control policies so that users can reach only the resources they are authorized to access.