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【单选题】

To increase the availability of an Advanced Replication environment， you can add a new master to a replication group without quiescing the group. This is achieved（）.

A、Only when the new master site already has existing replication groups. 

B、By issuing a single command to create, populate, and activate the new master. 

C、When the master definition site is not the same for all of the master groups. 

D、Without impacting end users who are executing data manipulation language (DML) commands on the replicated tables.

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第1题
[单选题] A technician wants to increase the reliability of a DHCP server. Which of the following components should be installed to increase the server’s uptime on the network？（）

A、 Increase the amount of RAM  B、 Use a lower voltage power supply  C、 Add a hardware firewall  D、 Install redundant NICs  

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第2题
[多选题] What are three valid reasons to assign ports to VLANs on a switch？（）

A、to make VTP easier to implement  B、to isolate broadcast traffic  C、to increase the size of the collision domain  D、to allow more devices to connect to the network  E、to logically group hosts according to function  F、to increase network security  

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第3题
[单选题] You find that the database performance degrades while you backup the PROD database using Recovery Manager （RMAN）. The PROD database is running in shared server mode. The database instance is currently using 60% of total operating system memory. You suspect the shared pool fragmentation to be the reason. Which action would you consider to overcome the performance degradation？（）

A、Configure Java Pool to cache the java objects.  B、Configure Streams Pool to enable parallel processing.  C、Increase Shared Pool size to cache more PL/SQL objects.  D、Increase Database Buffer Cache size to increase cache hits.  E、Configure Large Pool to be used by RMAN and shared server.  F、Increase the total System Global Area （SGA） size to increase memory hits.  

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第4题
[单选题] A TCP/IP application is transferring files from a personal machine to a remote machine.  The application writes 32 kilobytes of data at a time to the socket， but has not issued a system call to set the window size.  Which of the following procedures should be performed on the personal machine to increase the throughput of the application？（）

A、 Increase the size of thewall  B、 Increase the size of sb_max  C、 Increase the size of tcp_recvspace  D、 Increase the size of tcp_sendspace  

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第5题
[单选题] A customer has an 8-way p650 running an application for about 200 users.  In the past， the requiredamount of memory and processors has increased proportionally to the number of new users.  The customer plans to increase users by 10% each year for the next three years.  Next year， a database will be added to the workload to support the users directly rather than being on a separate machine. What is the most likely result of this projected growth？（）

A、Disk usage will increase in proportion to memory.  B、The new database will demand much more memory.  C、Memory demand will increase 10% for the next year.  D、Processor demand will increase about 10% for the next year.  

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第6题
[] A TCP/IP application receives files from a remote machine.  The application reads 32 kilobytes of data at a time to the socket， but has not issued a system call to set the window size. Which of the following procedures should be performed on the personal machine to increase the throughput of the application？（）

A、A. Increase the size of thewall  B、B. Increase the size of sb_max  C、C. Increase the size of tcp_recvspace  D、D. Increase the size of tcp_sendspace  

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第7题
[多选题] Certkiller.com has hired you as a system administrator for their network. The previousadministrator created a Microsoft ASP.NET Web application. Microsoft .NET Framework v3.5 wasused to create this application. You detect an unexpected increase in the value of the Application Restarts counter whilstmonitoring the application performance counters. You receive an instruction from management toidentify the reasons for the increase. What should you identify？（）

A、The increase occurred due to changes made to the Web.config file in the system.web sectionfor debugging the application.  B、The increase occurred due to the Microsoft IIS 6.0 host being restarted.  C、The increase occurred due to an additional code fragment that needs recompilation to theASP.NET Web application.  D、The increase occurred due to the Microsoft Windows Server 2003 that hosts the Webapplication being restarted.  E、The increase occurred due to an additional new assembly in the Bin directory of the application.  F、The increase occurred due to HTTP compression being enabled in the Microsoft IIS 6.0manager for the application  

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第8题
[单选题] You are maintaining an OLTP database in Oracle10g. You have configured the Flash Recovery Area in your database. The Flash Recovery Area is full because you have set the retention policy to NONE. What will you do to resolve the problem？（）

A、 Increase the value of the FAST_START_MTTR_TARGET initialization parameter.  B、 Increase the value of the DB_RECOVERY_FILE_DEST_SIZE parameter.  C、 Increase the value of the PGA_AGGREGATE_TARGET initialization parameter.  D、 Increase the value of the SGA_TARGET initialization parameter.  

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第9题
[单选题] According to Ohm’s Law， which of the following is correct？（）

A、As voltage increases， resistance decreases  B、As amperage decreases， resistance decreases  C、As resistance decreases， amperage increases  D、As resistance increases， voltage increases  

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第10题
[单选题] Tape streaming is not happening while performing RMAN tape backup. On investigation， you find that it is not because of the incremental backup or the empty file backup and that RMAN is sending data blocks to the tape drive fast enough. What could be a solution to make tape streaming happen during the backup？（）  

A、 Configure backup optimization  B、 Configure the channel to increase MAXOPENFILES  C、 Configure the channel to increase the capacity with the RATE parameter  D、 Configure the channel to adjust the tape buffer size with the BLKSIZE option  

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