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Rabi
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Looking for IT Networking Technician technical interview questions for AWS?
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Cristian Hernandez
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Austin, Texas
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Here are some AWS-focused technical interview questions tailored for an IT Networking Technician role:
1. Networking Fundamentals in AWS
- Explain the differences between a VPC, subnet, and availability zone in AWS.
- How would you design a multi-tier architecture in AWS to isolate public-facing and private resources?
- What is an AWS Transit Gateway, and how does it differ from a VPN?
- Describe how you would set up VPC peering between two VPCs in different AWS accounts.
- What are the main differences between a security group and a network ACL in AWS?
2. AWS Network Security and Access Control
- How do you configure a security group to allow inbound HTTP traffic on port 80 while restricting access on other ports?
- What is the purpose of IAM policies, and how would you use them to control access to specific AWS resources?
- How would you design a secure connection from on-premises to AWS?
- Can you explain AWS Shield and AWS WAF? When and why would you use each?
- How does AWS PrivateLink work, and why is it used in secure networking?
3. Load Balancing and High Availability
- What are the key differences between an Application Load Balancer (ALB), Network Load Balancer (NLB), and Classic Load Balancer?
- How would you configure a load balancer to support an application across multiple availability zones?
- Explain how AWS Auto Scaling works with load balancing to ensure high availability.
- How would you design a fault-tolerant network architecture in AWS for a high-traffic application?
4. Network Performance Optimization
- What is AWS Global Accelerator, and how does it improve performance for applications?
- How would you troubleshoot high latency issues between AWS regions?
- What tools would you use in AWS to monitor network performance, and how would you set up alerts for network issues?
5. Troubleshooting and Maintenance
- A VPC is having trouble communicating with the internet—what steps would you take to troubleshoot this issue?
- How would you investigate and resolve connectivity issues between two AWS instances located in different VPCs?
- What is VPC Flow Logs, and how can it be used to troubleshoot network issues?
- Explain a scenario where NAT Gateway would be essential and how you would set it up.
6. AWS Networking Services and Integrations
- What are the main use cases for AWS Direct Connect, and how is it different from a VPN?
- Explain how AWS Route 53 works and how it can be used to manage DNS and routing within AWS?
- How would you set up hybrid connectivity between an on-premises data center and AWS?
- Can you describe the process of migrating an on-premises IP range into an AWS VPC?
7. Disaster Recovery and Backup in AWS
- What AWS services or strategies would you use to ensure network redundancy and disaster recovery for a critical application?
- How would you create a backup and recovery plan for network configurations and resources in AWS?
These questions assess knowledge of AWS networking components, design principles, troubleshooting, and security practices. Each question could open up deeper technical discussions, allowing the interviewer to gauge the candidate's familiarity with AWS services and networking concepts.
1. Networking Fundamentals in AWS
- Explain the differences between a VPC, subnet, and availability zone in AWS.
- How would you design a multi-tier architecture in AWS to isolate public-facing and private resources?
- What is an AWS Transit Gateway, and how does it differ from a VPN?
- Describe how you would set up VPC peering between two VPCs in different AWS accounts.
- What are the main differences between a security group and a network ACL in AWS?
2. AWS Network Security and Access Control
- How do you configure a security group to allow inbound HTTP traffic on port 80 while restricting access on other ports?
- What is the purpose of IAM policies, and how would you use them to control access to specific AWS resources?
- How would you design a secure connection from on-premises to AWS?
- Can you explain AWS Shield and AWS WAF? When and why would you use each?
- How does AWS PrivateLink work, and why is it used in secure networking?
3. Load Balancing and High Availability
- What are the key differences between an Application Load Balancer (ALB), Network Load Balancer (NLB), and Classic Load Balancer?
- How would you configure a load balancer to support an application across multiple availability zones?
- Explain how AWS Auto Scaling works with load balancing to ensure high availability.
- How would you design a fault-tolerant network architecture in AWS for a high-traffic application?
4. Network Performance Optimization
- What is AWS Global Accelerator, and how does it improve performance for applications?
- How would you troubleshoot high latency issues between AWS regions?
- What tools would you use in AWS to monitor network performance, and how would you set up alerts for network issues?
5. Troubleshooting and Maintenance
- A VPC is having trouble communicating with the internet—what steps would you take to troubleshoot this issue?
- How would you investigate and resolve connectivity issues between two AWS instances located in different VPCs?
- What is VPC Flow Logs, and how can it be used to troubleshoot network issues?
- Explain a scenario where NAT Gateway would be essential and how you would set it up.
6. AWS Networking Services and Integrations
- What are the main use cases for AWS Direct Connect, and how is it different from a VPN?
- Explain how AWS Route 53 works and how it can be used to manage DNS and routing within AWS?
- How would you set up hybrid connectivity between an on-premises data center and AWS?
- Can you describe the process of migrating an on-premises IP range into an AWS VPC?
7. Disaster Recovery and Backup in AWS
- What AWS services or strategies would you use to ensure network redundancy and disaster recovery for a critical application?
- How would you create a backup and recovery plan for network configurations and resources in AWS?
These questions assess knowledge of AWS networking components, design principles, troubleshooting, and security practices. Each question could open up deeper technical discussions, allowing the interviewer to gauge the candidate's familiarity with AWS services and networking concepts.