What is the difference between a homogeneous and heterogeneous DDBMS? Under what circumstances would such systems generally arise?
What will be an ideal response?
Heterogeneous DDBMSs may arise as the result of integration of disparate
systems. Homogeneous DDBMSs are more likely to be the result of a strategic decision to move to
a DDBMS and implement the system in a top-down fashion.
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A system administrator is tasked to setup a database server with failover clustering feature enabled. One of the requirements is to have one database running at all times with data being synchronized and replicated to the idle database in case the primary database server fails. Both servers will be monitored by a witness on a LUN. Which of the following cluster techniques should be implemented to meet these requirements?
A. Active/Active B. Active/Passive C. Single Local Quorum D. Passive/Passive E. Shared Multiple Quorum
Select recommended usability and accessibility practices:
a. use video and sound whenever possible b. supply text descriptions of audio and video files that appear in your web pages c. never use audio and video files d. none of the above