英文名称：8-Arm PEG-SAA 8-Arm PEG-Succinamide Acid 中文名称：八臂-聚乙二醇-丁二酸酰胺 分子量：1k，2k，3.4k，5k，10k，20k（可按需定制） 质量控制：95%+ 存储条件：-20°C，避光，避湿 用 途：仅供科研实验使用，不用于诊治 外 观：粘稠液体或者固体粉末，取决于分子量 注意事项：取用一定要干燥，避免频繁的溶解
AWS SAA是Amazon推出的助理级别认证，不需要任何先决证书都可以考。SAA过了之后可以考SAP(Professional)即专家级别。在国内考试，比方说在Personal VUE，可以选择中文或英文；如果选择英文考试，对于英语非母语的candidate，可以提前申请额外时间(默认考试时间130分钟，考题65道)。如何提前申
Cost "It turns out that S3TA did not result in an accelerated transfer." Because we only pay the data transfer out from S3 and the data has been accelerated transfer. So if no acceleration, then no need to pay anything. Direct connect re
DataSync Agnet on Premises side Send data to AWS DataSync Save to S3, EFS, FSx Large amount of data to AWS
PutMetricData API Dashboard's graphs can from different AWS accounts and regions For easy monitoring and filtering Unified Agent able to send RAM...etc metric CloudWatch Alarm Data events are not logged by default Detect unusal
Kinesis Analytics can be Data streams and Firehose as input And Analytics can use Data stream and Firehose as output FIrehose can use S3 to store data so that itself has not data storage, cannot replay data DyanmoDB is near 50 times more expensive than
SAA SNS also has FIFO Only target can be used is SQS Can setup filtering so that goes to different subscriber SAP WITH FILTERING
SAA Here's a quick cheat-sheet to remember all these services: EMR (Elastic Map Reduce): Big Data / Hadoop / Spark clusters on AWS, deployed on EC2 for you Glue: ETL (Extract Transform Load) service on AWS OpsWorks: managed Chef & Puppet on AWS
Case 1: WhatIsTheTime.com Simple start Use T2 instance EIP to public access CONS: When more people come to your website, T2 instance is not enough to handle. Change T2 to M5 to vertically scale out EC2 CONS: When change from T2 to T5, users exp
SQL Access Advisor（SQL访问顾问） SQL Access Advisor是一种调优工具，它可提供有关物化视图、索引、物化视图日志和分区的建议。 分析的情景 考虑只有索引、只有物理化视图还是二者都有能够获得最大的效益。 在推荐生成新索引或者物理化视图时，在存储、维护方面的开销与性能提高之间
Faster than MySQL... Postgres Failover faster CRR: entire database is copied (not select tables) Load / Offload data directly from / to S3: efficient use of resources Support for Cross Region Replication as other RDS database Has Writer Endpoint and
SAA ElastiCache requires code changes Share user session across EC2 instances Redis has multi AZs, failover, backup SAP
SAA Case 1 User can get Authed by using Cognito User need to access his own S3 folder, we can use Cognito to generate temp credentials by using STS, then clients are able to use temp credientials to store/retrieve file in S3 Caching We can cache on D
S3 is not good at searching object We can use DynamoDB to save the metadata of S3 object Then do the search in DyanmoDB If you need to get data directly from DynamoDB, DAX is good for that If you need to perform some calucation which needs quite a bit
SAA Overview For each container, there is ECS Agent attached to it. ECS Agent talk to ECS Service, ECR to pull image and send log to CloudWatch. There are two types of IAM roles: For EC2 instance, ECS Agent For Task defintion For each Task, will a
所有新南威爾士州的居民必須在他們家中的每層依照生產商的說明安裝有至少一侲UR正常 工作的煙霧報警器，且該報警器要符合澳洲標準AS3786。這包括由房屋所有人居住的、租賃的物 業、可移動的房子、旅行拖車、露營車和任何其他供人居住的移動物業（帳篷除外）。 产品服务范围覆盖欧盟建
