Pre-Summer Special Limited Time 70% Discount Offer - Ends in 0d 00h 00m 00s - Coupon code: validbest

Pass the Amazon Web Services AWS Certified Specialty ANS-C01 Questions and answers with ValidTests

Exam ANS-C01 All Questions
Exam ANS-C01 Premium Access

View all detail and faqs for the ANS-C01 exam

Viewing page 8 out of 9 pages
Viewing questions 71-80 out of questions
Questions # 71:

A company is deploying a web application into two AWS Regions. The company has one VPC in each Region. Each VPC has three Amazon EC2 instances as web servers behind an Application Load Balancer (ALB). The company already has configured an Amazon Route 53 public hosted zone for example.com. Users will access the application by using the fully qualified domain name (FQDN) of app.example.com.

The company needs a DNS solution that allows global users to access the application. The solution must route the users' requests to the Region that provides the lowest response time. The solution must fail over to the Region that provides the next-lowest response time if the application is unavailable in the initially intended Region.

Which solution will meet these requirements?

Options:

A.

For each ALB, create an A record that has a geolocation routing policy to route app.example.com to the IP addresses of the ALB. Configure a Route 53 HTTP health check that monitors each ALB by IP address. Associate the health check with the A records.

B.

Create an A record that has a geolocation routing policy to route app.example.com to the IP addresses for both ALBs. Configure a Route 53 health check that monitors TCP port 80 for each ALB by IP address. Associate the health check with the A records.

C.

Create an A record that has a latency-based routing policy to route app.example.com as an alias to one of the ALBs. Configure a Route 53 health check that monitors TCP port 80 for each ALB by IP address. Associate the health check with the A records.

D.

For each ALB, create an A record that has a latency-based routing policy to route app.example.com as an alias to the ALB. Set the value for Evaluate Target Health to Yes for the records.

Expert Solution
Questions # 72:

A company has 10 web server Amazon EC2 instances that run in an Auto Scaling group in a production VPC. The company has 10 other web servers that run in an on-premises data center. The company has a 10 Gbps AWS Direct Connect connection between the on-premises data center and the production VPC.

The company needs to implement a load balancing solution that receives HTTPS traffic from thousands of external users. The solution must distribute the traffic across the web servers on AWS and the web servers in the on-premises data center. Regardless of the location of the web servers, HTTPS requests must go to the same web server throughout the entire session.

Which solution will meet these requirements?

Options:

A.

Create a Network Load Balancer (NLB) in the production VPC. Create a target group. Specify ip as the target type. Register the EC2 instances and the on-premises servers with the target group Enable connection draining on the NLB

B.

Create an Application Load Balancer (ALB) in the production VPC. Create a target group Specify ip as the target type. Register the EC2 instances and the on-premises servers with the target group. Enable application-based session affinity (sticky sessions) on the ALB.

C.

Create a Network Load Balancer (NLB) in the production VPC. Create a target group. Specify instance as the target type. Register the EC2 instances and the on-premises servers with the target group. Enable session affinity (sticky sessions) on the NLB.

D.

Create an Application Load Balancer (ALB) in the production VPC. Create a target group. Specify instance as the target type Register the EC2 instances and the on-premises servers with the target group Enable application-based session affinity (sticky sessions) on the ALB.

Expert Solution
Questions # 73:

A company is deploying AWS Cloud WAN with edge locations in the us-east-1 Region and the ap-southeast-2 Region. Individual AWS Cloud WAN segments are configured for the development environment, the production environment, and the shared services environment at each edge location. Many new VPCs will be deployed for the environments and will be configured as attachments to the AWS Cloud WAN core network.

The company's network team wants to ensure that VPC attachments are configured for the correct segment. The network team will tag the VPC attachments by using the Environment key with a value of the corresponding environment segment name. The segment for the production environment in us-east-1 must require acceptance for attachment requests. AH other attachment requests must not require acceptance.

Which solution will meet these requirements?

Options:

A.

Create a rule with a number of 100 that requires acceptance for attachments to the production segment. In the rule, set the condition logic to the "or" value. Include conditions that require a tag:Environment value of Production or a Region value of us-east-1. Create a rule with a number of 200 that does not require acceptance to map any tag:Environment values to their respective segments.

B.

Create a rule with a number of 100 that requires acceptance for attachments to the production segment. In the rule, set the condition logic to the "and" value. Include conditions that require a tag:Environment value of Production and a Region value of us-east-1. Create a rule with a number of 200 that does not require acceptance to map any tag:Environment values to their respective segments.

C.

Create a rule with a number of 100 that does not require acceptance to map any tag:Environment values to their respective segments. Create a rule with a number of 200 that requires acceptance for attachments to the production segment. In the rule, set the condition logic to the "and" value. Include conditions that require a tag:Environment value of Production and a Region value of us-east-1.

D.

Create a rule with a number of 100 that does not require acceptance to map any tag:Environment values to their respective segments Create a rule with a number of 200 that requires acceptance for attachments to the production segment. In the rule, set the condition logic to the "or value. Include conditions that require a tag:Environment value of Production or a Region value of us-east-1.

Expert Solution
Questions # 74:

A company needs to protect against potential botnet command and control traffic from any Amazon EC2 instances that is in in the company’s AWS Environment.

Which solution will meet these requirements?

Options:

A.

Use AWS Shield Advanced. Activate Shield Advanced protections on the EC2 instances to filter and block botnet traffic.

B.

Use Amazon Route 53 Resolver DNS Firewall. Add a rule to a rule group to use the AWSManagedDomainsBotnetCommandandControl managed domain list with an action to block botnet traffic.

C.

Use AWS WAF Bot Control. Configure a managed rule group that uses an AWS managed rule set to block botnet traffic.

D.

Use AWS Systems Manager. Run a Systems Manager Automation runbook on the EC2 instances to configure the instances to block botnet traffic.

Expert Solution
Questions # 75:

A company's application is deployed on Amazon EC2 instances in a single VPC in an AWS Region. The EC2 instances are running in two Availability Zones. The company decides to use a fleet of traffic inspection instances from AWS Marketplace to inspect traffic between the VPC and the internet. The company is performing tests before the company deploys the architecture into production.

The fleet is located in a shared inspection VPC behind a Gateway Load Balancer (GWLB). To minimize the cost of the solution, the company deployed only one inspection instance in each Availability Zone that the application uses.

During tests, a network engineer notices that traffic inspection works as expected when the network is stable. However, during maintenance of the inspection instances, the internet sessions time out for some application instances. The application instances are not able to establish new sessions.

Which combination of steps will remediate these issues? (Choose two.)

Options:

A.

Deploy one inspection instance in the Availability Zones that do not have inspection instances deployed.

B.

Deploy one additional inspection instance in each Availability Zone where the inspection instances are deployed.

C.

Enable the cross-zone load balancing attribute for the GWLB.

D.

Deploy inspection instances in an Auto Scaling group. Define a scaling policy that is based on CPU load.

E.

Attach the GWLB to all Availability Zones in the Region.

Expert Solution
Questions # 76:

A company is planning to migrate to AWS and use multiple VPCs in multiple AWS Regions. A network engineer must connect the eu-west-1 and eu-central-1 Regions to the company headquarters and branch office, respectively.

The network engineer created a production VPC, named Prod A, with a CIDR block of 10.0.0.0/16. Prod A runs in an account in eu-west-1. The network engineer then created another production VPC, named Prod B, with a CIDR block of 10.1.0.0/16. Prod В runs in a different account in eu-central-1.

The network engineer performed the following steps to try to achieve the required connectivity:

1. Created one transit gateway in each Region

2. Shared and accepted the transit gateways with the production accounts in both Regions

3. Configured the peering attachment between both transit gateways

4. Attached both VPCs to the respective Region transit gateway

5. Created both transit gateway route tables and associated the attachments with the route tables

6. Configured a static route in both transit gateway route tables to send traffic to the remote VPC in the other Region

7. Activated route propagation on the VPC route tables in each Region

After the configuration, the network engineer tried to connect from Prod A to Prod B. However, the connection was unsuccessful.

What should the network engineer do to achieve the required connectivity?

Options:

A.

Modify the IP address of the peering attachment to a wider range.

B.

Delete the static routes that were in the transit gateway route table to send traffic to the remote VPC and enable route propagation instead.

C.

Create a new route destined to 10.0.0.0/8 in both production VPC route tables with the Region transit gateway as the target.

D.

Modify the transit gateway route tables from the production accounts to propagate routes dynamically between the production VPCs.

Expert Solution
Questions # 77:

A company needs to transfer data between its VPC and its on-premises data center. The data must travel through a connection that has dedicated bandwidth. The data also must be encrypted in transit. The company has been working with an AWS Partner Network(APN) Partner to establish the connection.

Which combination of steps will meet these requirements? (Choose three.)

Options:

A.

Request a hosted connection from the APN Partner.

B.

Request a hosted public VIF from the APN Partner.

C.

Create an AWS Site-to-Site VPN connection.

D.

Create an AWS Client VPN connection.

E.

Create a private VIF.

F.

Create a public VIF.

Expert Solution
Questions # 78:

A company's application team is unable to launch new resources into its VPC. A network engineer discovers that the VPC has run out of usable IP addresses. The VPC CIDR block is 172.16.0.0/16.

Which additional CIDR block can the network engineer attach to the VPC?

Options:

A.

172.17.0.0/29

B.

10.0.0.0/16

C.

172.17.0.0/16

D.

192.168.0.0/16

Expert Solution
Questions # 79:

A company needs to capture and log traffic for Nitro-based Amazon EC2 instances to comply with regulations. The company's network team has prepared a solution that enables VPC traffic mirroring and sends traffic to a second set of EC2 instances in an Auto Scaling group.

The network team has added a Network Load Balancer (NLB) in front of the EC2 instances the traffic will be sent to. However, the solution does not send any mirrored traffic to the EC2 instances that are behind the NLB.

How should the network team configure traffic mirroring to use the NLB endpoint?

Options:

A.

Select the NLB as a source for traffic mirroring. Use a UDP listener.

B.

Select the NLB as a target for traffic mirroring. Use a TCP listener and a UDP listener.

C.

Select the NLB as a target for traffic mirroring. Use a TCP listener.

D.

Select the NLB as a target for traffic mirroring. Use a UDP listener.

Expert Solution
Questions # 80:

A company has deployed a critical application on a fleet of Amazon EC2 instances behind an Application Load Balancer. The application must always be reachable on port 443 from the public internet. The application recently had an outage that resulted from an incorrect change to the EC2 security group.

A network engineer needs to automate a way to verify the network connectivity between the public internet and the EC2 instances whenever a change is made to the security group. The solution also must notify the network engineer when the change affects the connection.

Which solution will meet these requirements?

Options:

A.

Enable VPC Flow Logs on the elastic network interface of each EC2 instance to capture REJECT traffic on port 443. Publish the flow log records to a log group in Amazon CloudWatch Logs. Create a CloudWatch Logs metric filter for the log group for rejected traffic. Create an alarm to notify the network engineer.

B.

Enable VPC Flow Logs on the elastic network interface of each EC2 instance to capture all traffic on port 443. Publish the flow log records to a log group in Amazon CloudWatch Logs. Create a CloudWatch Logs metric filter for the log group for all traffic. Create an alarm to notify the network engineer

C.

Create a VPC Reachability Analyzer path on port 443. Specify the security group as the source. Specify the EC2 instances as the destination. Create an Amazon Simple Notification Service (Amazon SNS) topic to notify the network engineer when a change to the security group affects the connection. Create an AWS Lambda function to start Reachability Analyzer and to publish amessage to the SNS topic in case the analyses fail Create an Amazon Eve

D.

Create a VPC Reachability Analyzer path on port 443. Specify the internet gateway of the VPC as the source. Specify the EC2 instances as the destination. Create an Amazon Simple Notification Service (Amazon SNS) topic to notify the network engineer when a change to the security group affects the connection. Create an AWS Lambda function to start Reachability Analyzer and to publish a message to the SNS topic in case the analyses fail. Creat

Expert Solution
Viewing page 8 out of 9 pages
Viewing questions 71-80 out of questions