You have calibrated your RDF．When compiling the calibration table，the correction to be applied to any future RDF bearings is listed against the ______．A.true bearing of the transmitterB.relative bearing of the transmitterC.heading of the vesselD.time of reception
You have calibrated your RDF．When compiling the calibration table，the correction to be applied to any future RDF bearings is listed against the ______．
A.true bearing of the transmitter
B.relative bearing of the transmitter
C.heading of the vessel
D.time of reception
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单选题What is the teacher doing in terms of error correction? T: Does any of you have a pet at home? S: / have dog at home. T: Oh, / see you have a dog at home. Is your dog big or small?AHelping students do self-correction.BIndirect correction.CTolerating correction.
单选题You have calibrated your RDF. When compiling the calibration table，the correction to be applied to any future RDF bearings is listed against the（）.Atrue bearing of the transmitterBrelative bearing of the transmitterCheading of the vesselDtime of reception
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单选题You discover that your Recycle Bin contains two tables with the same name, MY_TABLE. You also have a table named MY_TABLE in your schema.You execute the following statement: FLASHBACK TABLE my_table TO BEFORE DROP RENAME TO my_table2; What will be the result of executing this statement?（）AOne of the tables is recovered from the Recycle Bin using a First In First Out (FIFO) approach.BOne of the tables is recovered from the Recycle Bin using a Last In First Out (LIFO) approach.CBoth the tables are recovered from the Recycle Bin with one table renamed to MY_TABLE2 and the other to a system-generated name.DNone of the tables are recovered from the Recycle Bin, and the statement returns an error.
单选题In your test database， you have created the ORDERS table as an index-organized table （IOT）. To facilitate faster querying， you have created a mapping table and a bitmap index on the ORDER_FILLED column. You observe that the query performance degrades when users perform a large volume of transactions. While investigating the reason， you find that the mapping table segment is fragmented， leading to poor performance. Which option would you use to defragment the mapping table without affecting the original table data？（）Aexport and import the mapping tableBdrop and re-create the mapping tableCtruncate the mapping table and reinsert the valuesDuse the ALTER TABLE···REBUILD command to defragment the mapping table
单选题On Monday， you dropped the DEPT table from your schema and then you re/x7fcreated the DEPT table in your schema. On Wednesday， you have a requirement to restore the DEPT table from the recycle bin. Which statement is correct？（）AYou can restore the DEPT table by using the Oracle Flashback Drop feature， provided you use the RENAME TO clause.BYou can restore the DEPT table by using the Oracle Flashback Drop feature and a systemgenerated name will be assigned to the restored table.CYou cannot restore the DEPT table by using the Oracle Flashback Drop feature because a table withthe name DEPT already exists in your schema.DYou cannot restore the DEPT table by using the Oracle Flashback Drop feature because the contents of the recycle bin are purged every 12 hours by default.