Tag Archives: unused

Which three statements are true about dropping and unused columns in an Oracle database? (Choose three.)

Which three statements are true about dropping and unused columns in an Oracle database? (Choose three.) A. A DROP COLUMN command can be rolled back B. A primary key column referenced by another column as a foreign key can be dropped if using the CASCADE option. C. A column that is set to UNUSED still counts towards the… Read More »

Which three statements are true about dropping and unused columns in an Oracle database? (Choose three.)

Which three statements are true about dropping and unused columns in an Oracle database? (Choose three.) A. A DROP COLUMN command can be rolled back B. A primary key column referenced by another column as a foreign key can be dropped if using the CASCADE option. C. Partition key columns cannot be dropped. D. An UNUSED column’s space… Read More »

An engineer is asked to protect unused ports that are configured in the default VLAN on a switch. Which two steps will fulfill the request? (Choose two.)

A. Configure the ports as trunk ports. B. Enable the Cisco Discovery Protocol. C. Configure the port type as access and place in VLAN 99. D. Administratively shut down the ports. E. Configure the ports in an EtherChannel. Answer: Option C, D. Explanation:  No answer description available for this question. Show AnswerDiscussion The post An engineer is asked… Read More »