The Workshop is designed to help you anticipate possible questions, review what you've learned, and begin learning how to put your knowledge into practice.
Quiz
1:
Name some Apache settings that might limit scalability or affect Apache performance.
A1:
Some of the Apache settings that might affect scalability include the FollowSymLinks, SymLinksIfOwnerMatch arguments to the Options directive, enabling per-directory configuration files, hostname lookups, having a scoreboard file, and statistics collection with mod_status.
2:
Name some operating system settings that might limit scalability.
A2:
Some operating system settings that might affect scalability include limits for number of processes, open file descriptors, and memory allowed per process.
3:
Name some approaches to improve performance.
A3:
The following are some suggestions for improving performance: load distribution via a hardware load balancer or reverse proxy, data compression, caching, mapping files to memory, and compiling modules statically.
4:
Which VirtualHost container gets a request if the connection uses NameVirtualHost, but no Host header is sent?
A4:
Reading the configuration top-to-bottom, the first VirtualHost container is favored. The same behavior occurs if there is a Host header, but no VirtualHost container that matches it.
5:
Is the ServerName directive necessary in a VirtualHost container?
A5:
Only when name-based virtual hosts are used. The Host header contents are compared to the contents of the ServerName directive. If a match isn't satisfied, the VirtualHost containers' ServerAlias directive value(s) are checked for matches.