Discuss the extended capabilities or services that a DDBMS must provide over a centralized DBMS.
What will be an ideal response?
? extended communication services to provide access to remote sites and allow the transfer of
queries and data among the sites, using a network;
? extended Data Dictionary to store data distribution details;
? distributed query processing including query optimization and remote data access;
? extended concurrency control to maintain consistency of replicated data;
? extended recovery services to take account of failures of individual sites and the failures of
communication links.
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What is I element?
What will be an ideal response?
In the say and think methods, the ____ parameter determines how long, in seconds, the message will remain on the screen.
A. continuation B. time C. length D. duration
A set of related navigation links, whether text or images, is known as a ____ bar.
A. status B. scroll C. navigation D. task
Sara, the security engineer, has discovered that a breach is in progress on a non-production system of moderate importance. Which of the following should Sara collect FIRST?
A. Memory dump, ARP cache B. Live system image, route table C. Temp files, hosts file D. Offline system image, router logs