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

题目
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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第1题:

When backing up a replication slave, which three should also be backed up in addition to data?()

A.The master.info and relay.info files

B.The relay log files

C.The relay index file

D.Mysql.slave_master_info table

E.Mysql.slave_relay_log_info table

F.Mysql.slave_worker_info table


参考答案:A, B, C

第2题:

Consider the events_% tables in performance Schema.Which two methods will clear or reset the collected events in the tables?()

A.Using DELETE statements, for example, DELETE FROM performance_schema.events_watis_current

B.Using the statement RESET PERFORMANCE CACHE

C.Using the statement FLUSH PERFORMANCE CACHE

D.Using TRUNCATE statements, for example, TRUNATE TABLE performance_schema.events_waits_current

E.Disabling and re-enabling all instruments

F.Restarting Mysql


参考答案:D, F

第3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


参考答案:B, C

第4题:

Consider the Mysql Enterprise Audit plugin. A CSV file called data.csv has 100 rows of data. The stored procedure prepare_db ( ) has 10 auditable statements. You run the following statements in the mydb database: Mysql> CALL prepare_db ( ); Mysql> LOAD DATA INFILE '/tmp/data.cav' INTO TABLE mytable; Mysql> SHOW TABLES; How many events are added to the audit log as a result of the preceding statements?()

  • A、12; only top-level statements and stored procedure events are logged
  • B、111; top-level statements and all lower-level statements are logged
  • C、3; only the top-level statements are logged
  • D、102; top-level statements are logged, but LOAD DATA INFILE is logged as a separate event

正确答案:C

第5题:

Which two statements about Network Attached Storage are correct?()

A. Data is accessed using NFS or CIFS.

B. Data is accessed at the block level.

C. NAS is referred to as captive storage.

D. Storage devices can be shared between users.

E. A NAS implementation is not as fast as a DAS implementation.


参考答案:C, D

第6题:

Consider typical High Availability (HA) solutions that do not use shared storage. Which three HA solutions do not use shared storage?()

A.Mysql NDB Cluster

B.Mysql Replication

C.Distributed Replicated Block Device (DRBD) and Mysql

D.Windows Cluster and Mysql

E.Solaris Cluster and Mysql


参考答案:A, B, C

第7题:

Consider the Mysql Enterprise Audit plugin. A CSV file called data.csv has 100 rows of data. The stored procedure prepare_db ( ) has 10 auditable statements.You run the following statements in the mydb database: Mysql> CALL prepare_db ( );Mysql> LOAD DATA INFILE ‘/tmp/data.cav‘ INTO TABLE mytable; Mysql> SHOW TABLES;How many events are added to the audit log as a result of the preceding statements?()

A.12; only top-level statements and stored procedure events are logged

B.111; top-level statements and all lower-level statements are logged

C.3; only the top-level statements are logged

D.102; top-level statements are logged, but LOAD DATA INFILE is logged as a separate event


参考答案:C

第8题:

Which High Availability solution can provide a consistent, time-delayed (for example, one hour) snapshot of the live production database?()

A.MySQL Replication

B.Distributed Replication Block Device

C.Windows Server Failover Clustering

D.MySQL Cluster


参考答案:A

第9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 received
  • B、store the alreadydeduplicated data stream unprocessed
  • C、compare the incoming data to previously replicated data and store only the byte-level changes
  • D、compare the incoming data to previously replicated data and store only the block-level changes

正确答案:C

第10题:

You are a professional level SQL Server 2005 database administrator in an international corporation named Wiikigo. You are experienced in implementing high-availability solutions, monitoring the database server, and design deployment. In the company, you major job is the deployment, maintenance and support of Microsoft SQL Server 2005. You work as a database administrator for a financial services company. Replication is configured between two SQL Server 2005 computers, and the servers are respectively named SQL1 and SQL2. Real-time transactional data is stored by the SQL1. And SQL2 is utilized for reporting. The data on SQL01 should not be changed by SQL2. The publication contains a large amount of data. Since you are the database administrator, you need to make sure that data is replicated from SQL1 to SQL2 in as near real-time as possible to confirm accurate reporting during replication. In addition, you need to make sure that this data is replicated securely.  Which action should be performed?()

  • A、Snapshot replication should be set on SQL1. And then SQL2 should be set as a standard subscriber for a standard subscription.
  • B、Transactional replication should be set on SQL1. And then, SQL2 should be set as a standard subscriber for a standard subscription.
  • C、Merge replication should be set on SQL1. And then SQL2 should be set as a standard subscriber for an updateable subscription.
  • D、Transactional replication should be set on SQL1. And then, SQL2 should be set as a standard subscriber for an updateable subscription.

正确答案:B

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