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52 Cards in this Set
- Front
- Back
- 3rd side (hint)
What is the default maximum number of VPC's a customer can have in a region? Can it be increased? |
5, yes |
Enough to hold a reasonable number of environments if you chose to have a VPC per prod, demo, dev etc. but not unlimited |
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What is the default maximum number of subnets per VPC? Can it be increased? |
200, yes |
Far more than would be needed in most situations |
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What is the default maximum number of Elastic IP's you can allocate within a region? Can it be increased? |
5, yes |
This is separate from the Elastic IP limit in EC3. |
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What is the default maximum number of Security Groups you can have in a VPC? Can it be increased? |
500, yes |
How many would you need? |
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What is the default maximum number of Internet Gateways you can have in a VPC? Can it be increased? |
1, no |
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What is the default maximum number of VPN connections per VPC? Can it be increased? |
10, yes |
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What is the default maximum number of Network Access Control Lists in a VPC? Can it be increased? |
200, no |
The number is not so high because there is a network performance hit with each rule |
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What is the default maximum number of rules per network ACL direction (ingress or egress) Can it be increased? |
20, yes up to 40 per direction |
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What is the default maximum number of route tables per VPC? Can it be increased? |
200, yes |
Lower than it might seem because there is a performance hit with each route |
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What is the default maximum number of non-propagated routes per route table? Can it be raised? |
50, yes up to 100 |
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What is the default maximum number of BGP advertised routes per route table (propagated routes)? Can this be increased? |
100, no |
This is per direction |
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What is the default maximum number of inbound or outbound rules per Security Group? Can this be increased? |
50, yes but the multiple of rules and security groups per network interface cannot exceed 250 |
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What is the default maximum number of Security Groups per network interface? Can this be increased? |
5, yes but the multiple of security groups per interface and rules per security group cannot exceed 250 |
It is like a virtual firewall |
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A Security Group operates at what level? |
Instance |
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A NACL operates at what level? |
Subnet |
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What connection port speeds are available with Durect Connect? |
1 Gbps and 10 Gbps |
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OSI Layer 1 |
Physical |
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OSI Layer 2 |
Data Link |
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OSI Layer 2 |
Data Link |
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OSI Layer 3 |
Network |
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OSI Layer 2 |
Data Link |
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OSI Layer 3 |
Network |
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OSI Layer 4 |
Transport |
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OSI Layer 2 |
Data Link |
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OSI Layer 3 |
Network |
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OSI Layer 4 |
Transport |
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OSI Layer 5 |
Session |
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OSI Layer 2 |
Data Link |
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OSI Layer 3 |
Network |
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OSI Layer 4 |
Transport |
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OSI Layer 5 |
Session |
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OSI Layer 6 |
Presentation |
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OSI Layer 2 |
Data Link |
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OSI Layer 3 |
Network |
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OSI Layer 4 |
Transport |
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OSI Layer 5 |
Session |
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OSI Layer 6 |
Presentation |
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OSI Layer 7 |
Application |
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EC2 Family Types: General Purpose |
Balance of CPU, memory and storage. Ideal for small and medium applications |
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EC2 Family Types: Compute Optimized |
High performing processors. High performance front-end, web servers, science applications, batch processing |
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EC2 Family Types: GPU |
Optimized for graphic intensive applications |
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EC2 Family Types: GPU |
Optimized for graphic intensive applications |
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EC2 Family Types: Memory Optimized |
Used for large scale, enterprise class, in-memory applications |
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EC2 Family Types: Storage Optimized |
SSD backed instance storage for low latency and high I/O performance |
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EC2 Instance Purchasing Options |
1) On-Demand 2) Reserved 3) Spot 4) Dedicated instances 5) Dedicated hosts |
There are 5 |
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EC2 Instance Purchasing Option: On-Demand (describe) |
pay as you go, can be launched any time, good fit for development and testing |
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EC2 Instance Purchasing Option: Reserved (describe) |
Purchase for a set period of time for a reduced cost. 1 or 3 year time frames. Best for long term, predictable workloads |
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EC2 Instance Purchasing Option: Reserved (describe payment options in order of greatest to least discounting) |
In order of greatest to least discount: All up front partial up front no up front |
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EC2 Instance Purchasing Option: Spot (describe) |
Bid for unused EC2 resources No guarantee for how long they will be available Price based on supply and demand |
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What does the EC2 option for Dedicated Hosts offer above Dedicated Instances? |
Additional visibility and control of the physical host |
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What is the EC2 "User Data" used for? |
Storing commands which will be run when the instance boots up for the first time |
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What is the difference between an Elastic Beanstalk web server and worker environment? |
A web server environment is used for traditional web apps, while a worker environment is used for apps with SQS back end processing |
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