AWS Advanced Networking Specialty Interview Questions

AWS Certified Advanced Networking – Specialty examination validates advanced technical skills and experience in designing and implementing AWS with hybrid IT network architectures at scale. AWS Certified Advanced Networking Specialty examination is suitable for individuals to perform complex networking tasks. To help you in your interview preparation, we have curated a number of questions.

Can you describe your experience with Amazon Virtual Private Cloud (VPC)?

Amazon Virtual Private Cloud (VPC) is a service provided by AWS that enables customers to launch AWS resources into a virtual network that is isolated from the public Internet. This allows customers to have complete control over their network environment and to securely connect to their own data center.

With VPC, customers can create custom network configurations, such as multiple subnets, route tables, and network gateways. They can also assign security measures such as security groups and network ACLs to control network traffic. VPC also supports various VPN connectivity options, including AWS VPN and Site-to-Site VPN connections. This allows customers to securely connect their VPC to their data center or other remote networks.

Overall, VPC provides customers with a secure and scalable network environment within AWS, giving them the ability to launch and manage their resources with the security and control they need.

How have you managed network security for AWS resources, such as implementing security groups and network ACLs?

Managing network security for AWS resources can be done through various measures such as implementing security groups and network ACLs. Security groups act as virtual firewalls that control incoming and outgoing network traffic to AWS resources. Network ACLs are another layer of security for a VPC that control incoming and outgoing traffic. Both security groups and network ACLs can be configured to allow or deny traffic based on rules that match specific criteria, such as IP addresses and port numbers. By properly configuring security groups and network ACLs, administrators can ensure that only authorized network traffic is allowed to reach their AWS resources.

Can you discuss your experience with AWS Direct Connect and its use cases?

Yes, I am familiar with AWS Direct Connect.

AWS Direct Connect is a network service that provides dedicated network connections from your on-premises data centers to AWS. With AWS Direct Connect, you can establish a highly reliable and low-latency connection between your on-premises network and AWS, bypassing the public internet.

AWS Direct Connect is used in various use cases, including:

1. High-speed data transfer: You can use AWS Direct Connect to transfer large amounts of data between your on-premises network and AWS, providing a fast and reliable connection.
2. Hybrid cloud architectures: You can use AWS Direct Connect to create hybrid cloud architectures, where you can run applications and store data in both your on-premises data centers and AWS.
3. Disaster recovery: You can use AWS Direct Connect to establish a connection between your on-premises network and AWS as a part of your disaster recovery strategy.
4. Network redundancy: You can use multiple AWS Direct Connect connections to create a redundant network architecture, ensuring high availability and reliability.

I have experience in setting up and configuring AWS Direct Connect connections, including creating virtual interfaces and configuring routes. I am familiar with various AWS Direct Connect use cases and the benefits they provide, including increased security, improved performance, and reduced network costs.

Have you worked with AWS VPN and Site-to-Site VPN connections?

Yes, I am familiar with AWS VPN and Site-to-Site VPN connections.

AWS VPN is a service that enables you to create a secure and encrypted connection between your on-premises network and your VPC in AWS. With AWS VPN, you can extend your on-premises network into the cloud, enabling you to securely access resources in your VPC from your on-premises network.

Site-to-Site VPN is a type of VPN connection that enables you to connect multiple remote networks to each other over the internet. With Site-to-Site VPN, you can establish a secure and encrypted connection between your on-premises network and multiple VPCs in AWS, allowing you to communicate and exchange data between them.

I have experience in setting up and configuring both AWS VPN and Site-to-Site VPN connections, including creating VPN gateways, configuring customer gateways, and managing VPN connections. I am familiar with various encryption protocols and tunneling protocols used in VPN connections, including IPSec and SSL/TLS.

Can you explain your understanding of Elastic Load Balancing and Auto Scaling in AWS?

Elastic Load Balancing (ELB) and Auto Scaling are two services offered by AWS to help you manage the performance and availability of your applications.

Elastic Load Balancing is a service that automatically distributes incoming application traffic across multiple target instances. It allows you to balance the load across multiple EC2 instances, containers, and IP addresses, improving the fault tolerance and scalability of your application. ELB supports multiple load balancing algorithms and enables you to route traffic based on various attributes, such as IP address and request origin.

Auto Scaling is a service that automatically adjusts the capacity of your EC2 instances in response to changes in demand for your application. With Auto Scaling, you can ensure that you have the right amount of capacity to handle the load on your application, without over-provisioning or under-provisioning resources. Auto Scaling enables you to scale your application horizontally, by adding or removing EC2 instances, or vertically, by adjusting the size of your EC2 instances.

By combining Elastic Load Balancing and Auto Scaling, you can create a highly available and scalable architecture for your applications, ensuring that they perform optimally and are always available to meet the demands of your users.

Have you worked with AWS Route 53 and how it can be used for high availability and failover scenarios?

Amazon Route 53 is a highly available and scalable Domain Name System (DNS) service offered by AWS. It can be used for high availability and failover scenarios by configuring Route 53 health checks and using Route 53 routing policies.

A health check monitors the health of your resources, such as your web servers, and Route 53 uses the results of the health check to determine the health of the resource. Based on the results of the health check, Route 53 can route traffic to healthy resources and away from unhealthy ones.

Route 53 supports several routing policies, including Simple Routing, Weighted Routing, Latency Routing, and Failover Routing, among others. These routing policies can be used to create high availability and failover solutions that meet the specific needs of an organization. For example, the Failover Routing policy can be used to route traffic to a secondary resource, such as a secondary AWS region or on-premises data center, in the event that the primary resource becomes unavailable.

Can you discuss your experience with AWS Network Performance Optimization?

AWS network performance optimization involves various techniques and tools aimed at improving the performance of the network in AWS. This includes using Amazon CloudFront for content delivery, Amazon Elastic Load Balancer for load balancing, and Amazon Route 53 for traffic management. Additionally, it involves utilizing the VPC and subnet design, choosing the right instance type, and implementing security groups and network access control lists to control network traffic.

AWS also provides a range of services for optimizing network performance such as Amazon Global Accelerator, Amazon Direct Connect, and Amazon VPC traffic mirroring, among others. These services help organizations achieve fast, reliable, and secure network performance in their AWS environment.

Have you worked with Amazon VPC peering and transit VPC?

Amazon VPC peering is a connection between two VPCs that enables the routing of traffic between them using private IP addresses. This allows resources in one VPC to communicate with resources in another VPC as if they were in the same network.

A Transit VPC is a highly available and scalable architecture that enables centralizing the management of network traffic within an organization. It enables routing network traffic from multiple VPCs to on-premises data centers, other VPCs, or AWS services. This allows organizations to have a centralized network management solution and improve network efficiency and security.

Can you describe a time when you had to troubleshoot a networking issue in AWS?

A typical scenario could be where instances in a VPC are unable to communicate with the Internet or with each other. To troubleshoot the issue, I would follow these steps:

1. Identify the affected resources: Determine which instances, subnets, and security groups are impacted by the issue.
2. Verify the configurations: Check the configurations of the affected resources, such as VPC and subnet CIDR ranges, security group rules, and routing tables.
3. Use AWS tools: Utilize AWS tools such as VPC Flow Logs, CloudWatch, and Traceroute to gather more information about the issue and identify any network connectivity issues.
4. Check network access: Verify that the instances have the necessary network access, such as Internet Gateway or VPN connectivity.
5. Collaborate with other teams: If necessary, collaborate with other teams, such as the database or application teams, to identify any other potential issues that could be impacting network connectivity.
6. Implement a solution: Based on the information gathered, implement a solution, such as updating security group rules, modifying routing tables, or creating a VPN connection.
7. Verify the resolution: After implementing a solution, verify the resolution by testing network connectivity and confirming that the issue has been resolved.

By following this approach, I can effectively troubleshoot networking issues in AWS and restore network connectivity to meet the desired requirements.

How do you approach network automation in AWS using tools such as CloudFormation and Terraform?

To approach network automation in AWS using tools such as CloudFormation and Terraform, I would follow these steps:

1. Plan the network architecture: Define the network components, such as VPCs, subnets, security groups, and routing tables, and their desired configurations.
2. Create reusable templates: Use CloudFormation or Terraform templates to define the network infrastructure as code, allowing for version control and easier deployment.
3. Automate deployment: Use the templates to automate the deployment of the network components, reducing the risk of manual configuration errors.
4. Test and validate: Validate the deployed network components to ensure they meet the desired configurations and requirements.
5. Monitor and update: Continuously monitor and update the network components as needed, using the templates for easy and repeatable deployments.

By automating network deployment and configuration, I can ensure consistency, reduce deployment time, and increase efficiency. Additionally, it makes it easier to manage changes to the network architecture and infrastructure over time.

What exactly is Amazon Web Services (AWS)?

AWS stands for Amazon Web Service, and it is a cloud computing network that consists of a range of remote computing resources. IaaS, or Infrastructure as a Service, is another name for this emerging cloud computing domain.

What are the main components of Amazon Web Services (AWS)?

• Route 53 is one of the most important components of AWS.
• A web-based DNS service
• E-mail Service for Beginners:
• It helps you to send email using either a RESTFUL API call or a standard SMTP server. Identity and Access Management:
• It improves your AWS account’s protection and identity management.
• (S3): Simple Storage Device
• It’s a storage device that’s also the most popular AWS service.
• EC2 (Elastic Compute Cloud): It provides applications with on-demand computing services. It’s useful in the event of erratic workloads.
• EBS (Elastic Block Store):
• CloudWat provides persistent storage volumes that link to EC2, allowing you to keep data after a single Amazon EC2 instance has ended.

What exactly is S3?

Simple Storage Service (S3) is an acronym for Simple Storage Service. The S3 gui allows you to store and retrieve any amount of data at any time and from any location on the internet. The payment model for S3 is “pay as you go.”

Define AMI ?

Amazon Machine Image (AMI) is an acronym for Amazon Machine Image. It’s a prototype that contains the necessary details (an operating system, an application server, and applications) to launch an instance, which is a cloud-based copy of the AMI. You can use as many different AMIs as you want to launch instances.

What exactly does an AMI entail?

The following items are included in an AMI:

• A blueprint for the instance’s root volume.
• Which AWS accounts may use the AMI to launch instances is determined by launch permissions.
• When the instance is launched, a block system mapping specifies which volumes should be attached to it.

What is the best way to give a request to Amazon S3?

You can submit a request to Amazon S3 using the REST API or the AWS SDK wrapper libraries, which wrap the underlying Amazon S3 REST API.

Is it possible to scale an Amazon instance vertically? How do you do it?

Yes, you can scale your Amazon instance vertically. As a result

• Create a new, larger instance than the one you’re using now.
• The instance should be paused, and the root webs volume should be detached from the server and discarded.
• After that, shut down your live instance and disconnect its root volume.
• Take note of the specific system ID and attach your new server’s root volume to it.
• And then start over.

What exactly are T2 instances?

T2 instances are designed to provide a moderate baseline performance with the potential to burst to higher performance when the workload demands it.

What subnet can database servers be launched into in a VPC with private and public subnets?

Database servers can preferably launch into private subnets in VPC, which has both private and public subnets.

Mention what Amazon EC2 protection best practises are.

Follow the steps below for stable Amazon EC2 best practises.

• Monitor access to your AWS services with AWS identity and access management.
• Enable only trusted hosts or networks to access ports on your instance to limit access.
• Regularly review the rules in your protection classes.
• Just allow access to the permissions you need.
• For example, if your AMI is launched from a URL, disable password-based login.

What is the purpose of the buffer in Amazon web services?

By synchronising various components, the buffer makes the device more stable in terms of managing traffic or load. Components typically receive and process requests in an unbalanced manner. The components can be balanced and run at the same speed with the aid of the buffer, resulting in faster services.

What are the potential link issues that one may encounter while connecting to your instance?

The following are some of the potential connection errors that can occur while linking instances.

• The link was lost.
• The server does not recognise the user key.
• Permission refused because the host key could not be identified.
• a private key file that isn’t password-protected
• Our key was rejected by the server, or there was no supported authentication method available.
• Error when using MindTerm in Safari
• Using the Mac OS X RDP Client, there is an error.

How many Elastic IPs is allows you to create by AWS?

5 VPC Elastic IP addresses are allowed for each AWS account.

In AWS, what are key-pairs?

Protected login information for your virtual machines is stored in key-pairs. You may use key-pairs with a public-key and a private-key to bind to the instances

Explain the S3 default storage class.

Standard regularly accessed is the default storage class.

What are the positions of the edges?

The region where the contents will be cached is known as the edge spot. As a result, when a user tries to access some information, it is automatically searched in the edge region.

What are the advantages of auto-scaling?

Following are the advantages of autoscaling

• Firstly, Offers fault tolerance
• Secondly, Better availability
• Last but not least, Better cost management

What is meant by subnet?

A large section of IP Address divided into chunks is known as subnets.

Can you establish a Peering connection to a VPC in a different region?

Yes, we can establish a peering connection to a VPC in a different region. It is called inter-region VPC peering connection.

What is SQS?

Simple Queue Service also known as SQS. It is distributed queuing service which acts as a mediator for two controllers.

What is AWS CloudTrail’s purpose?

CloudTrail is a tool that was created specifically for logging and monitoring API calls. It helps to audit all S3 bucket accesses.

What is the name of the AWS service that operates solely to cache data and images redundantly?

AWS Edge locations are services that cache data and images in a redundant manner.

What is Amazon EMR?

EMR is a surviving cluster stage that aids in the interpretation of data structure behaviour prior to intimation. On Amazon Web Services, Apache Hadoop and Apache Spark allow you to investigate large amounts of data. You can use Apache Hive and other relevant open source designs to prepare data for analytics and marketing intelligence workloads.

Do you need an internet gateway to use peering connections?

Yes, the Internet gateway is needed to use VPC (virtual private cloud peering) connections.

How to connect EBS volume to multiple instances?

We can’t be able to connect EBS volume to multiple instances.  Although, you can connect various EBS Volumes to a single instance.

How long does it take for the instance stored backed AMI to boot?

An Amazon instance store-backend AMI takes less than 5 minutes to boot.

State the difference between An Instance  and AMI

AMI is a template consisting of software configuration part. For example Operating systems, applications, application server if you start an instance, a duplicate of the AMI in a row as an attendant in the cloud.

What are the advantages of being a cloud architect, especially an Amazon Web Services cloud architect?

Most businesses want to save money and operate on a global scale with little effort. With the cost of human skilled resources increasing, and the cloud allowing for the development of custom solutions, Cloud architects are a new breed of creative individuals that have arisen. Individuals with extensive experience, skills, and understanding of creating a solution on these networks are able to build large-scale solutions for a variety of companies.

The AWS Cloud Certification is given by Amazon. They were the first to enter the cloud industry and have the broadest global reach.

List the various types of cloud services available.

The following are some examples of cloud services:

• Firstly, As a Service (SaaS) (SaaS),
• Secondly, Information as a Service (DaaS)
• Thirdly, Software as a Service (SaaS) (PaaS)
• Last but not least, Infrastructure as a Service (IaaS) is a type of cloud (IaaS).

What are the various types of load balancers available via AWS services?

There are two kinds of load balancers:

• Load Balancer for Applications
• Load Balancer (Classic)

What are the main features of Amazon’s cloud search service?

The following are some of the main features of the Amazon cloud:

• Firstly, Searches using Boolean operators
• Secondly, Prefix Lookups
• Thirdly, Searches within a certain range
• Next, Check the entire text
• Last but not least, Advice from AutoComplete

We have covered all the important questions for an AWS Advanced Networking Specialty on Azure examination interview. You can also, try out free practice test and get the best of it. It will also, help you in giving a better understanding of the examination. You can also, check Azure Network online training for further knowledge.