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多选题
Compare a typical Distributed Replicated Block Device (DRBD) with MySQL Standard Replication using master-slave replication. Which two statements are correct?（）
A
Both technologies guarantee an identical copy of data on the secondary node
B
Only MySQL can maintain a time-delayed copy of data on the secondary node
C
Both technologies use the TCP/IP stack as their primary transmission medium
D
DRBD uses shared-disk technology
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Compare a typical Distributed Replicated Block Device (DRBD) with MySQL Standard Replication using master－slave replication. Which two statements are correct?()
A.Both technologies guarantee an identical copy of data on the secondary nodeB.Only MySQL can maintain a time-delayed copy of data on the secondary nodeC.Both technologies use the TCP/IP stack as their primary transmission mediumD.DRBD uses shared-disk technology
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Which High Availability solution can provide a consistent, time－delayed (for example, one hour) snapshot of the live production database?()
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Consider typical High Availability (HA) solutions that do not use shared storage. Which three HA solutions do not use shared storage?()
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Which command synchronizes or rebuilds the logical volume control block，the device configuration database，and the volume group descriptor areas on the physical volumes？（）A、syncvg rootvgB、synclvm rootvgC、varyonvg rootvgD、synclvodm rootvg
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Which High Availability solution can provide a consistent, time-delayed (for example, one hour) snapshot of the live production database?（）A、MySQL ReplicationB、Distributed Replication Block DeviceC、Windows Server Failover ClusteringD、MySQL Cluster
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Compare a typical Distributed Replicated Block Device (DRBD) with MySQL Standard Replication using master-slave replication. Which two statements are correct?（）A、Both technologies guarantee an identical copy of data on the secondary nodeB、Only MySQL can maintain a time-delayed copy of data on the secondary nodeC、Both technologies use the TCP/IP stack as their primary transmission mediumD、DRBD uses shared-disk technology
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单选题You have run out of disk space on a partition. Which of the following would be an easy way to move data to a new partition without reconfiguring the path to the data in existing applications？（）A
Run ext2fs ACL.B
Use a hard link.C
Use a symbolic link.D
Use the loopback device.E
Create a block device offset.
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考题
多选题Compare a typical Distributed Replicated Block Device (DRBD) with MySQL Standard Replication using master-slave replication. Which two statements are correct?（）ABoth technologies guarantee an identical copy of data on the secondary nodeBOnly MySQL can maintain a time-delayed copy of data on the secondary nodeCBoth technologies use the TCP/IP stack as their primary transmission mediumDDRBD uses shared-disk technology
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单选题Which statement is true about the distributed call control in a VoIP network？（）A
the VoIP endpoints have the intelligence to set up and control callsB
Call setup and control functionality is centralized in one call agent or clusterC
Call setup and control resides in call agents that are distributed throughout the networkD
Each VoIP device has separate call control， voice packetization， and transport mechanisms
考题
单选题A manufacturing company is using ProtecTIER TS7610 appliances in a spoke and hubconfiguration. ProtecTIER’s TS7610 replication technology at the hub will perform the followingaction on the replicated data being received：（）A
compress the incoming data stream as it is receivedB
store the alreadydeduplicated data stream unprocessedC
compare the incoming data to previously replicated data and store only the byte-level changesD
compare the incoming data to previously replicated data and store only the block-level changes
考题
单选题Which statement describes the distributed call control model in VoIP networks？（）A
The gateway voice-capable device is configured to support call control directly performing call setup， call maintenance， and call teardownB
The gateway voice-capable device has a local call routing table configured through a routing protocol.C
The gateway voice-capable device relies on a call agent to support call control.D
The gateway voice-capable device relies on a gatekeeper to support call setup， call maintenance， and call teardown.
考题
多选题Consider typical High Availability (HA) solutions that do not use shared storage. Which three HA solutions do not use shared storage?（）AMysql NDB ClusterBMysql ReplicationCDistributed Replicated Block Device (DRBD) and MysqlDWindows Cluster and MysqlESolaris Cluster and Mysql
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