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单选题
During a period of whiteout，you should expect which of the following（）.
A
Snowfall or blowing snow
B
Lack of ability to estimate distance
C
Harsh contrast between sun-illuminated snow cover and the background
D
Hazy horizons with extensive mirage effects
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更多 “单选题During a period of whiteout，you should expect which of the following（）.A Snowfall or blowing snowB Lack of ability to estimate distanceC Harsh contrast between sun-illuminated snow cover and the backgroundD Hazy horizons with extensive mirage effects” 相关考题
考题
You notice a performance change in your production Oracle 12c database. You want to know which change caused this performance difference.Which method or feature should you use?()
A. Compare Period ADDM reportB. AWR Compare Period reportC. Active Session History (ASH) reportD. Taking a new snapshot and comparing it with a preserved snapshot
考题
During a period of whiteout，you should expect which of the following? ______.A.Snowfall or blowing snowB.Lack of ability to estimate distanceC.Harsh contrast between sun-illuminated snow cover and the backgroundD.Hazy horizons with extensive mirage effects
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Which general weather conditions should you expect to find in a low pressure system ________．A.Fair weatherB.Precipitation and cloudinessC.Scattered clouds at high elevationsD.Gradual clearing and cooler temperatures
考题
If the center of low pressure is due west of you in the Northern Hemisphere, which wind direction should you expect?A.South to westB.South to eastC.West to northD.North to east
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Even for one single connection, the retransmission time should not be fixed.A connection may be able to send segments and receive （74）faster during nontraffic period than during congested periods. TCP uses the dynamic retransmission time,a transmission time is different for each connection and which may be changed during the same connection.
A.connections
B.requests
C.acknowledgments
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考题
Very soon you will be performing maintenance operations. You would have several jobs to run as soon as the maintenance period starts. Which method would you use to create jobs without specifying the time period when the job should be run？（）A、 use DBMS_IJOB packageB、 use Oracle SchedulerC、 use DBMS_JOB packageD、 use Oracle Data Pump Export and Import
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You are working on an Oracle Database 10g database. For which purposes would you use the Flashback Transaction Query feature？ （）A、 To recover a dropped table.B、 To recover a dropped schema.C、 To recover data from a truncated table.D、 To view changes made by all the transactions during a given period of time.E、 To view changes made by a single transaction during a given period of time.
考题
The database is running in the ARCHIVELOG mode. It has three redo log groups with one member each. Oneof the redo log groups has become corrupted. You have issued the following command during the recovery of a damaged redo log file:ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 3; Which action should you perform immediately after using this command?（）A、You should perform a log switchB、You should make a backup of the databaseC、You should switch the database to the NONARCHIVELOG modeD、You should shut down the database instance and perform a complete database recovery
考题
You work in a company which is named Wiikigo Corp. The company uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. On two cluster-ready nodes, you intend to perform an installation of a SQL Server 2008 mission-critical cluster. Constant availability is needed by the mission-critical cluster. You have to configure the SQL Server cluster to failover and reduce the service disruption to the least. Which failover option should you use?（） A、You should allow failback only during non-business hours B、You should immediately allow failbackC、You should prevent automatic failback D、You should allow failback only during business hours
考题
You work as the IT professional in an international company which is named Wiikigo. You are experiencedin implementing and administering a network operating system. You are specialized in deploying servers，configuring Windows Server 2008 Terminal services and network application services， and configuring aweb services infrastructure. There are two servers named FC01 and FC02 in your company. And WindowsServer 2008 Enterprise is run by the server. The Failover Clustering feature is installed on the server. Theserver is configured as a two-node cluster. An application named APP01 is run by the cluster. The company work time is from 09：00 to 17：00. You need to make sure that APP01 can be accessed duringthese hours. FC01 is configured as the preferred owner for APP01. And you are required to preventfailback of the cluster during business hours. Which action should be performed to achieve the goal？（）A、To achieve the goal， the Prevent failback option should be enabled in the Failover properties.B、To achieve the goal， the If resource fails， attempt restart on current node policy should be enabled for all APP01 resources. And then， the Maximum restarts for specified period should be set to 0.C、To achieve the goal， the Period option should be set to 8 hours in the Failover properties.D、To achieve the goal， the Allow failback option should be set to allow failback between 17 and 9 hours in the Failover properties.
考题
You work as a network exchange administrator at company.com.the company.com network currently consists of a single active directory forest containing a single domain named company.com.the company.com organization makes use of microsoft exchange server 2010 as their messaging solution.thecompany.com organization currently makes use of a computer named -ex01.during the course of the business week you receive instruction from company.com to configure a retention period of 30 days for all deleted message items whilst ensuring that each item which passes the retention period are removed between 3：00 and 5：00 on a daily basis. What should you do？（）A、you should consider having the maintenance schedule of king database changed for the retention and removal of message items.B、you should consider having the messaging record management （mrm） schedule for-ex01 changed for the retention and removal of message items.C、you should consider having the set-retention policy cmdlet run to schedule the retention and removal of message items.D、you should consider having the start-managed folder assistant cmdlet run to schedule the retention and removal of message items.
考题
You work in a company which is named Wiikigo Corp. The company uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. There is a database named DB1 in the instance. At present about 90 GB of data is stored in DB1. You made some rough calculations that every day about 1 GB of data is modified or inserted. You set the recovery model of DB1 to Simple. According to the company requirements, during business hours, data loss of more than 120 minutes worth of transactions is unacceptable. You have to choose a backup strategy which must comply with the following two requirements: Using as little disk space as possible Complying with the company requirements. So what action should you perform to achieve this goal?（） A、A full database backup should be performed once daily. During business hour, a transaction log backup should be performed every two hours. B、A full database backup should be performed once daily C、A full database backup should be performed once daily. During business hours, a differential backup should be performed every two hours D、Perform a full database backup should be performed once every week. A differential backup should be performed once daily. During business hours a transaction log backup should be performed every two hours.
考题
单选题You work in a company which is named Wiikigo Corp. The company uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. On two cluster-ready nodes, you intend to perform an installation of a SQL Server 2008 mission-critical cluster. Constant availability is needed by the mission-critical cluster. You have to configure the SQL Server cluster to failover and reduce the service disruption to the least. Which failover option should you use?（）A
You should allow failback only during non-business hours B
You should immediately allow failbackC
You should prevent automatic failback D
You should allow failback only during business hours
考题
单选题You notice a performance change in your production Oracle 12c database. You want to know which change caused this performance difference. Which method or feature should you use?（）A
Compare Period ADDM reportB
AWR Compare Period reportC
Active Session History (ASH) reportD
Taking a new snapshot and comparing it with a preserved snapshot
考题
单选题Your database is functional with a peak load for the last one hour. You want to preserve the performancestatistics collected during this period to be used for comparison when you analyze the performance of thedatabase in the future. What action would you take to achieve this task（）A
Insert finding directives for ADDM tasks in the future.B
Create a baseline on a pair of snapshots spanning the peak-load period.C
Decrease the snapshot interval in the AWR to collect more snapshots during the peak- load period.D
Set the snapshot retention period in the Automatic Workload Repository （AWR） to zero to avoid automaticpurging of snapshots
考题
多选题You are working on an Oracle Database 10g database. For which purposes would you use the Flashback Transaction Query feature？ （）ATo recover a dropped table.BTo recover a dropped schema.CTo recover data from a truncated table.DTo view changes made by all the transactions during a given period of time.ETo view changes made by a single transaction during a given period of time.
考题
单选题The trouble-free life of an engine indicates （）.A
the period of time during which no trouble occurs to the engineB
no trouble will occur to the engine all its lifeC
trouble may occur freely to the engineD
no matter what you do to the engine, no trouble will occur during this period
考题
单选题Which general weather conditions should you expect to find in a low pressure system（）.A
Fair weatherB
Precipitation and cloudinessC
Scattered clouds at high elevationsD
Gradual clearing and cooler temperatures
考题
单选题Very soon you will be performing maintenance operations. You would have several jobs to run as soon as the maintenance period starts. Which method would you use to create jobs without specifying the time period when the job should be run？（）A
use DBMS_IJOB packageB
use Oracle SchedulerC
use DBMS_JOB packageD
use Oracle Data Pump Export and Import
考题
单选题You need to test your disaster recovery solution. Which role should you transfer to the disaster recovery location during the test?（）A
RID masterB
Schema masterC
PDC emulator masterD
Domain naming master
考题
单选题In polar regions you should NOT expect to see（）.A
mirage effectsB
sea smokeC
extensive snowfallD
false horizons
考题
单选题Dring a period of “whiteout”，you should expect which of the following（）.A
Snowfall or blowing snowB
Lack of ability to estimate distanceC
Harsh contrast between sun-illuminated snow cover and the backgroundD
Hazy horizons with extensive mirage effects
考题
单选题The database is running in the ARCHIVELOG mode. It has three redo log groups with one member each. One of the redo log groups has become corrupted. You have issued the following command during the recovery of a damaged redo log file： ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 3； Which action should you perform immediately after using this command？（）A
You should perform a log switchB
You should make a backup of the databaseC
You should switch the database to the NONARCHIVELOG modeD
You should shut down the database instance and perform a complete database recovery
考题
单选题You need to test your disaster recovery solution. Which role should you transfer to the disaster recovery location during the test？（）A
RID masterB
Schema masterC
PDC emulator masterD
Domain naming master
考题
单选题Which of the following is not recommended by the writer?A
You should expect your boss’ requirements before he/she asks.B
You should find out your boss’ priorities.C
You should give up the narrow way of thinking related to your own immediate position.D
You should make what you do identify with your boss’ interests.
考题
单选题You have abandoned ship in tropical waters. Which procedure(s) should be used during a prolonged period in a raft?（）.A
Wet clothes during the day to decrease perspirationB
Get plenty of restC
Keep the entrance curtains openD
All of the above
考题
单选题If the center of low pressure is due west of you in the Northern Hemisphere，which wind direction should you expect（）.A
South to westB
South to eastC
West to northD
North to east
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