BIS 245 Week 8 Quiz

 BIS 245 Week 8 Quiz | Devry University

Question 1

For integrity purposes, a distributed transaction requires all or _____ nodes to be updated in order to complete the transaction.

·         shared

·         primary

·         connected

·         no

 

Question 2

An organization deploys computer processing power and storage through a cloud provider's _____ services.

·         NaaS

·         PaaS

·         SaaS

·         IaaS

 

Question 3

In a primary/secondary replica update for a distributed database, secondary nodes are updated _____.

·         as a single distributed transaction

·         with independent local transactions

·         at the same time as the primary node replica

·         to any available single node

 

Question 4

Operational data changes _____, whereas analytic data are updated _____.

·         in real time, at fixed intervals

·         at fixed intervals, in real time

·         at fixed intervals, per a schedule

·         in real time, as it changes

 

Question 5

An organization uses a database and application development tools through a cloud provider's _____ services.

·         PaaS

·         IaaS

·         SaaS

·         NaaS

 

Question 6

A database admin configures replication for a distributed database. Which technique applies updates to any available node?

·         Parallel system

·         Primary/secondary

·         Master/slave

·         You Answered

·         Group replication

 

Question 7

During a data _____ phase, a database administrator refreshes a data warehouse and replaces incompatible keys with consistent values.

·         integration

·         extraction

·         cleansing

·         restructuring

 

Question 8

Due to infrequent updates, many distributed databases use a _____ catalog.

·         primary

·         replicated

·         private

·         parallel

 

Question 9

A replicated database maintains at least _____ or more replicas on _____ storage devices.

·         two, separate

·         three, parallel

·         two, propagated

·         three, distributed

 

Question 10

What occurs when a distributed database experiences a network error and nodes cannot communicate?

·         Consistent records

·         Database failure

·         Inconsistent transactions

·         Network partition