202.In which two aspects does hot patching differ from conventional patching? (Choose two.)
A. It consumes more memory compared with conventional patching.
B. It can be installed and uninstalled via OPatch unlike conventional patching.
C. It takes more time to install or uninstall compared with conventional patching.
D. It does not require down time to apply or remove unlike conventional patching.
E. It is not persistent across instance startup and shutdown unlike conventional patching.
Answer: AD
答案解析：
参考：http://blog.csdn.net/rlhua/article/details/16574625
热补丁注意事项
• 可能不是所有平台上都有热补丁程序。当前在以下平台上有热补丁程序：
– Linux x86
– Linux x86-64
– Solaris SPARC64
• 要消耗一些额外的内存。
– 确切的内存数取决于：
— 补丁程序的大小
— 当前运行的Oracle 进程数
– 最小内存数：每个Oracle 进程大约占一个OS 页面