Question Detail Which is not a logical database structure ChainTreeRelationalNetwork Answer: Option A Ad Similar Questions : 1. Embedded pointer provides a secondary access patha physical record keyan inverted indexall of above Answer: Option A 2. RAID configurations of a disk are used to provide fault tolerancehigh speedhigh data densitynone of above Answer: Option A 3. File record length should always be fixedshould always be variableshould be chosen to match the data characterdepends upon the size of file Answer: Option D 4. Which among following SQL commands is used to add a row UPDATETRUNCATEINSERTADD Answer: Option C 5. Data item characteristics that are important in data management include punctuationlanguagespellingwidth Answer: Option D Read more from - Database Question Answers - Chapter 1