• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

Card Range To Study

through

image

Play button

image

Play button

image

Progress

1/52

Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

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

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

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.

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?

What is the default maximum number of Internet Gateways you can have in a VPC? Can it be increased?

1, no

What is the default maximum number of VPN connections per VPC? Can it be increased?

10, yes

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

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

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

What is the default maximum number of non-propagated routes per route table? Can it be raised?

50, yes up to 100

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

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

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

A Security Group operates at what level?

Instance

A NACL operates at what level?

Subnet

What connection port speeds are available with Durect Connect?

1 Gbps and 10 Gbps

OSI Layer 1

Physical

OSI Layer 2

Data Link

OSI Layer 2

Data Link

OSI Layer 3

Network

OSI Layer 2

Data Link

OSI Layer 3

Network

OSI Layer 4

Transport

OSI Layer 2

Data Link

OSI Layer 3

Network

OSI Layer 4

Transport

OSI Layer 5

Session

OSI Layer 2

Data Link

OSI Layer 3

Network

OSI Layer 4

Transport

OSI Layer 5

Session

OSI Layer 6

Presentation

OSI Layer 2

Data Link

OSI Layer 3

Network

OSI Layer 4

Transport

OSI Layer 5

Session

OSI Layer 6

Presentation

OSI Layer 7

Application

EC2 Family Types: General Purpose

Balance of CPU, memory and storage. Ideal for small and medium applications

EC2 Family Types: Compute Optimized

High performing processors. High performance front-end, web servers, science applications, batch processing

EC2 Family Types: GPU

Optimized for graphic intensive applications

EC2 Family Types: GPU

Optimized for graphic intensive applications

EC2 Family Types: Memory Optimized

Used for large scale, enterprise class, in-memory applications

EC2 Family Types: Storage Optimized

SSD backed instance storage for low latency and high I/O performance

EC2 Instance Purchasing Options

1) On-Demand


2) Reserved


3) Spot


4) Dedicated instances


5) Dedicated hosts

There are 5

EC2 Instance Purchasing Option: On-Demand (describe)

pay as you go, can be launched any time, good fit for development and testing

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

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

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

What does the EC2 option for Dedicated Hosts offer above Dedicated Instances?

Additional visibility and control of the physical host

What is the EC2 "User Data" used for?

Storing commands which will be run when the instance boots up for the first time

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