coursera aws

AWS-based time series processing application architecture When data is used as a periodic continuous measurement, it is called time series information. AWS's unique positioning addresses the scale-up challenges brought by Time Series-based information processing. This elasticity is achieved through AutoScaling groups for collection and processing, AWS data pipelines for Amazon Elastic MapReduce scheduled jo

Our product has two module, deployed on separate Linux machine, module 1 need to launch HTTP request to Module 2 to obtain service. Since Module 2 has multiple units, we will deploy a load balancer (elb,elastic load Balancer) before Module 2. We're deployed in AWS, so we're using AWS ELB.　　　　AWS Elb also provides another good feature, called the Sticky Session, w

Exploring AWS and azure in cloud computing (3) -- Amazon EC2 and Windows azure Virtual Machine Today, I will compare the differences between AWS EC2 and azure VM processes. And compare some of their basic differences in the network environment.Article. Today, I will use a medium-size machine, AWS's M1 medium, memory 3.75 GB, 2 computing units, and storage 410 GB. On Azure, I will create an M machin

would the Vectorize this code to run without all for loops? Check all the Apply. A: v = A * x; B: v = Ax; C: V =x ' * A; D: v = SUM (A * x); Answer: A. v = a * x; v = ax:undefined function or variable ' Ax '. 4.Say you has a vectors v and Wwith 7 elements (i.e., they has dimensions 7x1). Consider the following code: z = 0; For i = 1:7 Z = z + V (i) * W (i) End Which of the following vectorizations correctly compute Z? Check all the Apply.

(w ')Description W over fitting3 Sources of errorNoise, Bias, Variance1. Noise NoiseOf an inherent, irreducible, or reduced nature.　　　2, Bias Deviation　　　　　　The simpler the model, the greater the deviation　　The more complex the model, the smaller the deviation3. Variance Variance　　　　Simple model, small variance　　Complex model, large variance　　Deviations and variance tradeoffs, deviations and variances cannot be calculated　　　　Training error and the amount of test data, fixed model complexity, a

-Normal equationSo far, the gradient descent algorithm has been used in linear regression problems, but for some linear regression problems, the normal equation method is a better solution.The normal equation is solved by solving the following equations to find the parameters that make the cost function least:Assuming our training set feature matrix is x, our training set results are vector y, then the normal equation is used to solve the vector:The following table shows the data as an example:T

Week 4 Quizhelp Center Warning:the hard deadline has passed. You can attempt it, Butyou won't get credit for it. You are are welcome to try it as a learning exercise. In accordance with the Coursera Honor Code, I certify This answers here are I own work. Question 1 Which of the following is nottrue about GFS? The GFS keeps multiple replicas of the same file chunk. The file data transfer happens directly between the GFS client and the GFS chunkservers

Week 2 Quizhelp Center Warning:the hard deadline has passed. You can attempt it, but and you won't be. You are are welcome to try it as a learning exercise. In accordance with the Coursera Honor Code, I certify this answers here are I own work. Question 1 Suppose a query has a total of 4 relevant documents in the collection. System A and System B have each retrieved, and the relevance status of the ranked lists is shown below: System A: [-----------]

Chinanetcloud has announced that it has designed, created and delivered a new system based on state-of-the-art cloud and DevOps technologies to a Chinese start-up company in Silicon Valley. Chinanetcloud manages, monitors and improves the system 24x7.The system was migrated in parallel by the cloud platform Heroku to give it all the benefits of a PAAs platform, with HA-VPC and opsworks capabilities on the AWS platform, plus devops, auto-creation, auto

Ryan Huang's interpretation: There are many reasons. I personally think there are four main reasons:1. Business features. AWS originated from Amazon.com. Because Amazon.com itself is a website with a large change in customer access traffic, IT staff have a lot of motivation to think about solutions to similar problems.2. Amazon's innovation factor. There are manyArticleIt has been reported that Jeff is the CEO who pays great attention to customer ex

The AWS Cloud service provides a very sophisticated service, and the messaging push service for mobile devices is also very good, very low cost, and good performance.Although the AWS official web site has a lot of steps to explain, but I still take a big detour, mainly because there is so little contact with Google, so that the use of Google Cloud message to send a message in a circle.First, the

Amazon AWS Learning-Create EC2 windows Amazon AWS Learning-Create EC2 windows 1. Launch an instance in EC2 2. Select Free Windows 3. View related hardware 4. Select a security group 5. Select a key pair 6. Get Login Password Recently changed jobs, and was the first to contact AWS, where you learned abo

If an KeyPair private key (*.PEM) is created and downloaded when AWS launches an instance, this private key can be telnet to this instance system as credentials via putty. In practice, however, you will be prompted with the following error when logging in with Putty:No Supported authentication methods available (server Sent:publickey)This is due to the fact that AWS generated key files (*.PEM) and putty req

Tags: information application rom creat AWS Evel splay rules DynamodbThis section describes how to export data from one or more dynamodb tables to S3 buckets. Before you run the export, you need to create S3 buckets in advance. NoteAssuming you haven't used AWS Data Pipeline before, you'll need to create two IAM roles before running the following process. For a lot of other information, please go to Creatin

AWS-based Remote Disaster Recovery System Architecture Disaster recovery is a technical precaution and measure that is taken back from any event that has a negative impact on the IT system .. A typical approach is to build repetitive infrastructure to ensure availability of backup capabilities in the event of a disaster. AWS can expand the infrastructure required for the company's private infrastructure.

2015-04-10 Oriental Cloud InsightClick on the link text above to quickly follow the "East Cloud Insights" public numberAmazon's Web services continue to erode the enterprise storage market, and AWS plans to release a new service to replace network-attached storage (NAS) devices. Amazon Elastic file System (EFS) will provide a shared, low-latency file system that supports project teams and organizations that need to share large files and quickly access

It took 2 weeks for the beans to learn some of the core commands of AWS PowerShell intermittently, and then took 2 days to assemble the knowledge points together. Currently, in addition to the official documentation of the Quick Manuals and command Daquan basically there is not much PowerShell to manage the content of AWS, most of the command beans is a search and view help hard to try out, the following sh

Yesterday I learned the basics of preparation and successfully linked AWS with PowerShell. Take a look today at how to use PowerShell to manage AWS services.Ec2,s3,vpc,security group,rds and so on. These early AWS services can be said to be his core skeleton, the goal of the beans is to finally use PowerShell to achieve a highly available blog, such as HTTP/ bean

This section continues to learn how to use PowerShell to manage the basic functions of IAM, primarily including the creation and configuration of user,group,role and policy.Create a groupNew-iamgroup-groupname "PowerUsers"650) this.width=650; "src=" Http://s2.51cto.com/wyfs02/M01/83/CB/wKiom1d8mRiAe1KZAADSFTZiU-c298.png "style=" float: none; "title=" 1.PNG "alt=" Wkiom1d8mriae1kzaadsftziu-c298.png "/>Create a new userNew-iamuser-username "Mynewuser"650) this.width=650; "src=" Http://s3.51cto.com

The S3cmd command is a very powerful tool that can operate on AWS S3, not only to download and upload files, but also to create catalogs and other features. S3cmd's use scenarios are very rich, such as when you back up your local log files to S3, you can use the combination of s3cmd and cron to make regular backups. For example, when the storage period of the log file is 365 days, use S3cmd to delete the specified directory from S3, and so on. Her