You want to enable resumable space allocation at the instance level.Which two actions would enable resumable space allocation at the instance level? （）(Choose two.) issuing the ALTER SYSTEM ENABLE RESUMABLE; statement。 issuing the ALTER SESSION ENABLE RESUMABLE; statement。 modifying the RESUMABLE_TIMEOUT initialization parameter to a nonzero value。 issuing the ALTER SYSTEM SET RESUMABLE_TIMEOUT=; statement。
描述计算机网络中数据通信的基本参数是数据传输速率与（） 服务质量。 传输延迟。 误码率。 响应时间。
Evaluate the following block of code: What is the outcome of the above code?（） It produces an error because a fully qualified host name needs to be specified.。 It produces an error because the range of ports associated with the hosts has not been specified.。 It creates an access control list (ACL) with the user ACCT_MGR who gets the CONNECT and RESOLVE privileges.。 It creates an access control list (ACL) with the user ACCT_MGR who gets the CONNECT privilege but not the RESOLVE privilege.。
You need to display the last names of those employees who have the letter "A" as the second character in their names. Which SQL statement displays the required results? （） SELECT last_name FROM EMP WHERE last_ name LIKE '_A%';。 SELECT last_name FROM EMP WHERE last name ='*A%'。 SELECT last_name FROM EMP WHERE last name ='_A%';。 SELECT last_name FROM EMP WHERE last name LIKE '*A%'。
用人单位未按时足额缴纳社会保险费的，由社会保险费征收机构责令其限期缴纳或者补足。
项目监理机构在施工环境保护方面的职责之一是（）。
