Networking - VPC Flashcards by Jana Dohman

Q

VPC Components Diagram

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Q

Understanding CIDR – IPv4

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How does CIDR – IPv4 work?

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Q

What are Subnet Masks?

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Q

What is the difference between Public vs. Private IP (IPv4)?

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Q

What is a Default VPC?

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Q

What is VPC in AWS – IPv4?

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Q

What is a VPC – Subnet (IPv4)?

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Q

What is an Internet Gateway (IGW)?

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Q

What are Bastion Hosts?

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Q

What are NAT Instances (outdated)?

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Q

How do NAT Instances work?

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Q

What are the disadvantages of using a NAT Instance?

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Q

What are NAT Gateways?

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Q

How do NAT Gateways work?

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Q

How are NAT Gateways highly available?

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Q

What are the differences between NAT Gateway vs. NAT Instance?

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Q

How do Security Groups work together with NACLs for both incoming and outgoing requests?

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Q

What are Network Access Control List (NACL)?

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Q

How do NACLs work?

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Q

What is the Default NACL and what are its settings?

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Q

What are Ephemeral Ports?

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Q

How do you handle Ephemeral Ports in a NACL?

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Q

How do you create NACL rules for each target subnet’s CIDR?

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What are the differences between Security Group vs. NACLs?

What is VPC Peering?

What are some important details about VPC Peering?

How does VPC Peering work?

What are VPC Endpoints (AWS PrivateLink)?

What are the two types of VPC endpoints?

Should I use Gateway or Interface VPC Endpoint for S3?

Should I use Gateway or Interface VPC Endpoint for DynamoDB?

What are VPC Flow Logs?

What is the syntax of VPC Flow Logs?

How do you use VPC Flow Logs to troubleshoot Security Group & NACL issues?

What are some architectures for using VPC Flow Logs?

What is AWS Site-to-Site VPN?

How do you set up Site-to-Site VPN Connections?

What is AWS VPN CloudHub?

What is Direct Connect (DX)?

What is the architecture of Direct Connect (DX)?

What if you want to set up Direct Connect to one or more VPCs in different regions?

What are the connection types for Direct Connect (DX)?

Is data on a Direct Connect (DX) connection encrypted?

How can you set up a resilient Direct Connect (DX) connection?

What can be used as a backup if the Direct Connect (DX) connection fails?

What is Transit Gateway?

What is the only service that supports IP Multicast?

Transit Gateway

What is a way to use Transit Gateway related to ECMP (Equal-cost multi-path routing)?

How does Transit Gateway throughput with ECMP work?

How can you Share Direct Connect between multiple accounts using Transit Gateway?

What is VPC –Traffic Mirroring?

What is IPv6?

How do you use IPv6 in VPC?

If you cannot launch an EC2 instance in your subnet, would you look into IPv4 or IPv6 as the cause of the problem?

What is Egress-only Internet Gateway?

How does routing work using IPv6?

What are the networking costs in AWS per GB?

How do you minimize egress traffic network costs?

How does S3 Data Transfer Pricing work?

How are costs affected by using NAT Gateway vs Gateway VPC Endpoint?

What is AWS Network Firewall?

What are the Fine Grained Controls in AWS Network Firewall?