Mark the joining shackles with （）paint...

第1题

[单选题] A cardinal mark showing an uninterrupted quick-flashing white light indicates the deepest water in the area is on the（）.

A、north side of the mark B、west side of the mark C、east side of the mark D、south side of the mark

点击查看答案

第2题

[单选题] A disk with a horizontal line through its center, equivalent to the summer load line, is called the（）.

A、deadrise mark B、maximum alloable draft mark C、pilmsoll mark D、tonnage mark

点击查看答案

第3题

[多选题] In which two cases would you use an outer join?（）

A、The tables being joined have NOT NULL columns. B、The tables being joined have only matched data. C、The columns being joined have NULL values. D、The tables being joined have only unmatched data. E、The tables being joined have both matched and unmatched data. F、Only when the tables have a primary key/foreign key relationship.

点击查看答案

第4题

[多选题] In which two cases would you use an outer join? （）

A、The tables being joined have NOT NULL columns. B、The tables being joined have only matched data. C、The columns being joined have NULL values. D、The tables being joined have only unmatched data. E、The tables being joined have both matched and unmatched data. F、Only when the tables have a primary key/foreign key relationship.

点击查看答案

第5题

[多选题] In which two cases would you use an outer join? （）

A、The tables being joined have NOT NULL columns. B、The tables being joined have only matched data. C、The columns being joined have NULL values. D、The tables being joined have only unmatched data. E、The tables being joined have both matched and unmatched data. F、Only when the tables have a primary key-foreign key relationship.

点击查看答案

第6题

[] A disk with a horizontal line through its center，equivalent to the summer load line，is called the（）.

A、A.deadrise mark B、B.maximum allowable draft mark C、C.plimsoll mark D、D.tonnage mark

点击查看答案

第7题

[多选题] In which three cases would you use the USING clause?（）

A、You want to create a nonequijoin. B、The tables to be joined have multiple NULL columns. C、The tables to be joined have columns of the same name and different data types. D、The tables to be joined have columns with the same name and compatible data types. E、You want to use a NATURAL join, but you want to restrict the number of columns in the join condition.

点击查看答案

第8题

[单选题] You are the network administrator for The network consists of a single Active Directory domain named All network servers run Windows Server 2003. All user files are stored in home folders on a member server named Testking3. Full backups are performed on Testking3 every day. A user named Mark leaves the company. A technical support specialist deletes Mark's user account and his files. You need to restore certain files from Mark's folder and enable another user named Anne to access them. What should you do?（）

A、Clear the Restore security check box. Use the Backup utility to restore Mark's files to the original location. B、Select the Restore security check box. Use the Backup utility to restore Mark's files to the original location. C、Clear the Restore security check box. Use the Backup utility to restore Mark's files to Anne's home folder. D、Select the Restore security check box. Use the Backup utility to restore Mark's files to Anne's home folder.

点击查看答案

第9题

[单选题] It is desirable that a certain method within a certain class can only be accessed by classes that are defined within the same package as the class of the method. How can such restrictions be enforced？（）

A、Mark the method with the keyword public. B、Mark the method with the keyword protected. C、Mark the method with the keyword private. D、Mark the method with the keyword package. E、Do not mark the method with any accessibility modifiers.

点击查看答案

Mark the joining shackles with （）paint.

请使用微信扫码支付