Question 20 (4 points) performance management can reduce the cost of application development because it occurs before the application becomes operational in a production environment. Reactive ve System Proactive Stabilization Question 21 (4 points) One of the biggest bottlenecks for database nerformance is the nvsical cost of Question 21 (4 points) One of the biggest bottlenecks for database performance is the physical cost of performing Installations Deletions We Upgrades EVO operations Question 22 (4 points) An area of memory set aside and used to avoid I/O operations when actual data is bain from the share DOLL Question 22 (4 points) An area of memory set aside and used to avoid I/O operations when actual data is being read from the database. Storage Area Network Random Access Memory Data Cache Read Only Memory Question 23 4 points) The database log, sometimes referred to as the transaction log is a fundamental comenontot a database management custom DOLL