Il 19/11/18 17:10, Bear Giles ha scritto: > How could I forget using S3 as a web server for static content? (With > client-side javascript libraries and lambdas that means you can often > create "serverless" websites.) Candidates shouldn't need to know the > details but should know that S3 is an alternative to apache and nginx, > and they should know that you can configure S3 so it sends an alert when > a file is deleted and that means you can use cheaper 'spot instances' > for scalability using cheaper spot instances. For instance you may have > full-resolution video on permanent S3 and video in different formats on > spot storage. When the latter file is deleted it automatically triggers > a process that will recreate it. This is usually finished by the time a > user requests a copy of the file, esp. if you are also using a caching > layer. > > Candidates shouldn't need to know the details of how to do this but they > should understand that a request for a "web server" might be satisfied > by S3 and a lighter EC2 instance instead of a more expensive EBS and a > heftier EC2 instance running the web server that provides the same > static content. Or that if devs use S3 storage they may also may also > need SNS (iirc) so they can receive notifications. SNS means knowing > that the could be linked to other messaging tools, e.g., SQS that acts > as a JMS server. > > It sounds like I'm arguing for a cloud-specific LPIC-2 but people still > need to be able to set up most (not all) conventional servers as well. > That's especially true with privacy laws that have a consequence of > encouraging hybrid solutions where sensitive information is stored in a > small data center the company controls while the public access is > entirely done in a scalable public cloud. No unencrypted sensitive > information would ever be on the public cloud, not even only in memory. > Someone in that situation needs to know the costs and benefits of both > S3 and apache/nginx, of RDS and their own oracle/mssql/mysql/postgresql > server, etc.
I was thinking that 202 is a Linux senior sysadmin exam, it seems to me that you are talking about an Amazon services admin exams. Don't see anything on this regarding Linux knowledge. But probably I'm missing something. Regards Simone -- Simone Piccardi Truelite Srl [email protected] (email/jabber) Via Monferrato, 6 Tel. +39-347-1032433 50142 Firenze http://www.truelite.it Tel. +39-055-7879597 _______________________________________________ lpi-examdev mailing list [email protected] http://list.lpi.org/cgi-bin/mailman/listinfo/lpi-examdev
