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。
要把学校里行政楼和实验楼的局域网互连，可以通过（）实现。 交换机。 MODEM。 中继器。 HUB。
The sysdumpdev command can be used to configure remote dump devices. Which of the following conditions is NOT used for a remote dump device configuration?（） The local and the remote host must have Transmission Control Protocol/Internet Protocol (TCP/IP) installed and configured. 。 The remote host must support NFS. 。 The remote host must have an NFS exported directory defined such that the local host has read and write permissions to the dump file on the remote host. 。 The remote host can be the same as the local host.。
正常成人胎儿血红蛋（HbF）是（） <1%。 >5%。 >10%。 >15%。
The ping loopback hangs with no output.Which of the following is the most likely cause?（） The loopback interface is down and resolv.conf is configured.。 The loopback is not in /etc/hosts and resolv.conf is configured.。 The loopback interface is down and resolv.conf is not configured.。 The loopback is not in /etc/hosts and resolv.conf is not configured.。
以下表述不符合资产评估科学性原则的是（）。
