[多选] During the implement phase， systems acceptance testing provides which two of the following services for the customer（）

Evaluate the CREATE TABLE statement：   CREATE TABLE products   （product_id NUMBER （6）  CONSTRAINT prod_id_pk PRIMARY KEY，  product_name VARCHAR2 （15））；   Which statement is true regarding the PROD_ID_PK constraint？（）  It would be created only if a unique index is manually created first.。  It would be created and would use an automatically created unique index.。  It would be created and would use an automatically created nonunique index.。  It would be created and remains in a disabled state because no index is specified in the command.。 边际站馈线接地排采用截面积不小于100mmx6mm铜板、孔数10个的铜排或采用截面积不小于（）铜铁转换器。 100mmx6mm。 100mmx40mm。 60mmx10mm。 100mmx20mm。 Which statement is true about Oracle Net Listener?（） It acts as the listening endpoint for the Oracle database instance for all local and non-local user connections.。 A single listener can service only one database instance and multiple remote client connections.。 Service registration with the listener is performed by the process monitor (PMON) process of each database instance.。 The listener.ora configuration file must be configured with one or more listening protocol addresses to allow remote users to connect to a database instance.。 仪表刻度盘的符号及意义MvAr（），vAr（）。 Which three are core server software components for IPCC Express?（） CRS Engine 。 recording 。 Cisco Agent Desktop 。 monitoring 。 Cisco Supervisor Deskto。 During the implement phase， systems acceptance testing provides which two of the following services for the customer（）