You have set Tablespace Full Metrics Threshold values for the USERS tablespace as follows： Warning （%）： 90 Critical （%）： 95 Which background process is responsible for issuing alerts when the threshold is crossed（） ["System monitor （SMON）","Process monitor （PMON）","Memory manager process （MMAN）","Manageability Monitor process （MMON）"]
何谓小学美术教材？
You have applications that have frequently executed queries， and produce small and static result sets. You configure the sqlnet.ora file in the client machine to set a nonzero value for the OCI_RESULT_CACHE_MAX_SIZE parameter. What is the purpose of this configuration？（） [" to avoid round trips to the server by enabling caching of query results in client memory"," to improve performance by storing a copy of the data from the private SQL area of the PGA"," to enhance the query performance by creating a cache in the client memory for sorting operations"," to avoid the storing of query plans and results in the server by creating a cache in the client memory"]
关于数字签名的基本原理，下列说法正确的是（） ["加密密钥与解密秘钥是相同的","信息发出方用自己的公钥对原文进行加密，接收方收到密文后可用自己的私钥解密","信息发出方用自己的私钥加密文件传送给接收方，接收方用发出方的公钥解密","数字签名是用私钥对数字摘要进行加密，用公钥进行解密和验证","“哈希”运算是对原文作数字摘要"]
在香港，刑事案件分为哪几类？
对齿轮传动机构的装配技术要求是什么？
