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单选题
After removing several obsolete programs from a PC, a user is experiencing slower than usuallyprocessing times. Which of the following would be the BEST way to speed up the processing? （）
A
Use an external hard drive.
B
Defrag the hard drive.
C
Add more RAM to the computer.
D
Install a larger hard drive.
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更多 “单选题After removing several obsolete programs from a PC, a user is experiencing slower than usuallyprocessing times. Which of the following would be the BEST way to speed up the processing? （）A Use an external hard drive.B Defrag the hard drive.C Add more RAM to the computer.D Install a larger hard drive.” 相关考题
考题
From the attached resume, you can see that I have learned several programming courses and the scores suggested that I have got profound theoretical knowledge about programming.
考题
_______, I am also enclosing some of the safety programs I designed so you can see first hand the type of work I am capable of performing to bring about the successful safety programs the government requires in organizations today.
Again, thank you for your time. I am looking forward to hearing from you soon.
Sincerely,
Bill J. Doe
A.Furthers
B.Beside
C.In addition
D.As well as
考题
The Hypertext Transfer Protocol , the Web's ( ) protocol , is at the heart of the Web. HTTP is implemented in two programs : a ( ) program and a server program . The client program and server program executing on different end systems , talk to each other by (请作答此空) HTTP messages . HTTP defines how Web clients request Web pages from servers and how servers transfer web pages to clients . when a user ( ) a web page , the browser sends http request messages for the objects in the page to the server . The server ( ) the requests and responds with http response messages that contain the objects .A.exchanging
B.changing
C.declining
D.removing
考题
共用题干
第一篇About eight million school-age children are home alone after school.These are the hours when the number of violent crimes peaks and when youths are most likely to experiment with alcohol,tobacco,and drugs.Many older children take care of themselves after school for an hour or two until a parent comes home,and research suggests that some of these children are more at risk of poor grades and risky behaviors.Studies have been done to find out what helps to reduce these kinds of risky behaviors among youths.One study of Chicago neighborhoods showed that after-school programs resulted in less violence even in poor neighborhoods.After-school programs can help to reduce crime and violence because they offer activities to children and youths during their out-of-school time.In addition to helping youths make use of after-school hours,after-school programs provide teens with opportunities to develop caring relationships with adults.Studies have found that high-quality relationships with parents and other adults,as well as good use of time,are very important for healthy development in youth.After-school programs can also be used for teens who hang out at friends' houses and play basketball when a parent or other responsible adult is at home.The programs can also be helpful for formal after-school activities,including"drop-in"programs that are provided by organizations. Despite the benefits of after-school programs,there are many reasons why some parents do not use them. Programs may be too expensive,of poor quality,or hard to join.Some older cililciren and young teens may refuse to attend programs that seem like they are just child care.F'arents may ieei uncertain about how much freedom is proper for children and youths who are beyond the traditional child care years.However,research supports the effectiveness of these programs in protecting middle school and high school youths from risk and harm.Which of the following is NOT true according to the passage?A:The grades of those children who are home alone after school are more likely to suffer.B:Parents want to give their children as much as possible freedom.C:The after-school programs help the students to make use of the time after school.D:The after-school programs are effective in protecting middle school and high school youths from risk and harm.
考题
共用题干
第一篇About eight million school-age children are home alone after school.These are the hours when the number of violent crimes peaks and when youths are most likely to experiment with alcohol,tobacco,and drugs.Many older children take care of themselves after school for an hour or two until a parent comes home,and research suggests that some of these children are more at risk of poor grades and risky behaviors.Studies have been done to find out what helps to reduce these kinds of risky behaviors among youths.One study of Chicago neighborhoods showed that after-school programs resulted in less violence even in poor neighborhoods.After-school programs can help to reduce crime and violence because they offer activities to children and youths during their out-of-school time.In addition to helping youths make use of after-school hours,after-school programs provide teens with opportunities to develop caring relationships with adults.Studies have found that high-quality relationships with parents and other adults,as well as good use of time,are very important for healthy development in youth.After-school programs can also be used for teens who hang out at friends' houses and play basketball when a parent or other responsible adult is at home.The programs can also be helpful for formal after-school activities,including"drop-in"programs that are provided by organizations. Despite the benefits of after-school programs,there are many reasons why some parents do not use them. Programs may be too expensive,of poor quality,or hard to join.Some older cililciren and young teens may refuse to attend programs that seem like they are just child care.F'arents may ieei uncertain about how much freedom is proper for children and youths who are beyond the traditional child care years.However,research supports the effectiveness of these programs in protecting middle school and high school youths from risk and harm.What can we infer from the passage?A:Teenagers tend to stay at their friends' houses for a long time.B:Relationships with adults may cause unhealthy development in youths.C:The after-school programs can be used for many different kids.D:Teenagers do not like the after-school programs.
考题
共用题干
第一篇About eight million school-age children are home alone after school.These are the hours when the number of violent crimes peaks and when youths are most likely to experiment with alcohol,tobacco,and drugs.Many older children take care of themselves after school for an hour or two until a parent comes home,and research suggests that some of these children are more at risk of poor grades and risky behaviors.Studies have been done to find out what helps to reduce these kinds of risky behaviors among youths.One study of Chicago neighborhoods showed that after-school programs resulted in less violence even in poor neighborhoods.After-school programs can help to reduce crime and violence because they offer activities to children and youths during their out-of-school time.In addition to helping youths make use of after-school hours,after-school programs provide teens with opportunities to develop caring relationships with adults.Studies have found that high-quality relationships with parents and other adults,as well as good use of time,are very important for healthy development in youth.After-school programs can also be used for teens who hang out at friends' houses and play basketball when a parent or other responsible adult is at home.The programs can also be helpful for formal after-school activities,including"drop-in"programs that are provided by organizations. Despite the benefits of after-school programs,there are many reasons why some parents do not use them. Programs may be too expensive,of poor quality,or hard to join.Some older cililciren and young teens may refuse to attend programs that seem like they are just child care.F'arents may ieei uncertain about how much freedom is proper for children and youths who are beyond the traditional child care years.However,research supports the effectiveness of these programs in protecting middle school and high school youths from risk and harm.Why do many parents refuse to use after-school programs?A:The programs are just like child care programs.B:The programs offer no freedom to their children.C:The programs bring little benefit to parents and children.D:The programs can be expensive or poor in quality.
考题
The Hypertext Transfer Protocol,the Web's（ ）protocol,is at the heart of the Web.HTTP is implemented in two programs:a（ ）program and a server program.The client program and server program executing on different end systems,talk to each other by（请作答此空）HTTP messages.HTTP defines how Web clients request Web pages from servers and how servers transfer web pages to clients.when a user（ ）a web page,the browser sends http request messages for the objects in the page to the server.The server（ ）the requests and responds with http response messages that contain the objects.A.exchanging
B.changing
C.declining
D.removing
考题
共用题干
About eight million school-age children are home alone after school.These are the hours when the number of violent crimes peaks and when youths are most likely to experiment with alco- hol,tobacco,and drugs. Many older children take care of themselves after school for an hour or two until a parent comes home,and research suggests that some of these children are more at risk of poor grades and risky behaviors.Studies have been done to find out what helps to reduce these kinds of risky behaviors among youths .One study of Chicago neighborhoods showed that after-school programs resulted in less vio- lence even in poor neighborhoods.After-school programs can help to reduce crime and violence because they offer activities to children and youths during their out-of-school time.In addition to helping youths make use of af-ter-school hours,after-school programs provide teens with opportunities to develop caring relation-ships with adults.Studies have found that high-quality relationships with parents and other adults, as well as good use of time,are very important for healthy development in youth.After-school programs can also be used for teens who hang out at friends' houses and play basketball when a parent or other responsible adult is at home.The programs can also be helpful for formal after-school activities,including"drop-in"programs that are provided by organizations.Despite the benefits of after-school programs,there are many reasons why some parents do not use them. Programs may be too expensive,of poor quality,or hard to join.Some older children and young teens may refuse to attend programs that seem like they are just child care.Parents may feel uncertain about how much freedom is proper for children and youths who are beyond the tradition-al child care years.However,research supports the effectiveness of these programs in protecting middle school and high school youths from risk and harm. What can we infer from the passage?A: Teenagers tend to stay at their friends' houses for a long time.B: Relationships with adults may cause unhealthy development in youths.C: The after-school programs can be used for many different kids.D: Teenagers do not like the after-school programs.
考题
共用题干
About eight million school-age children are home alone after school.These are the hours when the number of violent crimes peaks and when youths are most likely to experiment with alco- hol,tobacco,and drugs. Many older children take care of themselves after school for an hour or two until a parent comes home,and research suggests that some of these children are more at risk of poor grades and risky behaviors.Studies have been done to find out what helps to reduce these kinds of risky behaviors among youths .One study of Chicago neighborhoods showed that after-school programs resulted in less vio- lence even in poor neighborhoods.After-school programs can help to reduce crime and violence because they offer activities to children and youths during their out-of-school time.In addition to helping youths make use of af-ter-school hours,after-school programs provide teens with opportunities to develop caring relation-ships with adults.Studies have found that high-quality relationships with parents and other adults, as well as good use of time,are very important for healthy development in youth.After-school programs can also be used for teens who hang out at friends' houses and play basketball when a parent or other responsible adult is at home.The programs can also be helpful for formal after-school activities,including"drop-in"programs that are provided by organizations.Despite the benefits of after-school programs,there are many reasons why some parents do not use them. Programs may be too expensive,of poor quality,or hard to join.Some older children and young teens may refuse to attend programs that seem like they are just child care.Parents may feel uncertain about how much freedom is proper for children and youths who are beyond the tradition-al child care years.However,research supports the effectiveness of these programs in protecting middle school and high school youths from risk and harm. Why do many parents refuse to use after-school programs?A: The programs are just like child care programs.B: The programs offer no freedom to their children.C: The programs bring little benefit to parents and children.D: The programs can be expensive or poor in quality.
考题
共用题干
About eight million school-age children are home alone after school.These are the hours when the number of violent crimes peaks and when youths are most likely to experiment with alco- hol,tobacco,and drugs. Many older children take care of themselves after school for an hour or two until a parent comes home,and research suggests that some of these children are more at risk of poor grades and risky behaviors.Studies have been done to find out what helps to reduce these kinds of risky behaviors among youths .One study of Chicago neighborhoods showed that after-school programs resulted in less vio- lence even in poor neighborhoods.After-school programs can help to reduce crime and violence because they offer activities to children and youths during their out-of-school time.In addition to helping youths make use of af-ter-school hours,after-school programs provide teens with opportunities to develop caring relation-ships with adults.Studies have found that high-quality relationships with parents and other adults, as well as good use of time,are very important for healthy development in youth.After-school programs can also be used for teens who hang out at friends' houses and play basketball when a parent or other responsible adult is at home.The programs can also be helpful for formal after-school activities,including"drop-in"programs that are provided by organizations.Despite the benefits of after-school programs,there are many reasons why some parents do not use them. Programs may be too expensive,of poor quality,or hard to join.Some older children and young teens may refuse to attend programs that seem like they are just child care.Parents may feel uncertain about how much freedom is proper for children and youths who are beyond the tradition-al child care years.However,research supports the effectiveness of these programs in protecting middle school and high school youths from risk and harm. Which of the following is NOT true according to the passage?A: The grades of those children who are home alone after school are more likely to suffer.B: Parents want to give their children as much as possible freedom.C: The after-school programs help the students to make use of the time after school.D: The after-school programs are effective in protecting middle school and high school youths from risk and harm.
考题
What is the purpose of configuring the router as a PPPoE client?（）A、to provide VPN access over L2TPB、to enable PPP session from the router to the termination device at the headend for metro Ethernet connectivityC、for DSL connectivity and removing the need for the end - user PC to ru n the PPPoE client softwareD、for connecting the router to a cable modem, which bridges the Ethernet frames from the router to the cable modem termination system
考题
The new security feature in Vista that prevents programs from running with escalated privileges is called：（）A、User Account Control （UAC）.B、Windows Sidebar.C、Windows Defender.D、Aero Interface.
考题
A system administrator has disabled USB ports after experiencing several virus outbreaks. A user needs to transfer several extremely large work related files from their home desktop computer to their work desktop computer. Which of the following will allow the user to transfer the needed files?（）A、An IEEE-1394 deviceB、A NIC deviceC、An IrDA deviceD、A FDD device
考题
In Windows XP, how can a user change the programs that run at startup? （）(Select TWO).A、Add or remove programs from the system key of the registry.B、Add or remove programs from the boot.ini file.C、Add or remove programs from the startup folder.D、Run msconfig and configure startup programs.E、Run appstart and configure startup programs.
考题
A user is reporting that a PC will suddenly shut down without warning. The PC boots up with no problems, but after using the PC for a short time, the PC turns off. Which of the following components should the technician check?（） (Select TWO).A、CPU fanB、RAMC、Hard driveD、Power supplyE、Video card
考题
The technician is moving a user’s files from a Windows XP PC to a Windows Vista PC. Which of the following directories corresponds to each operating system?（）A、c:/users/user1/documents to c:/users/user1/documentsB、c:/documents and settings/user1/my documents to c:/users/user1/documentsC、c:/documents and settings/user1/my documents to c:/documents and settings/user1/my documentsD、c:/users/user1/my documents to c:/users/user1/documents
考题
You issue the following RMAN command to set a retention policy on a database： RMANCONFIGURE RETENTION POLICY TO REDUNDANCY 2； What will be the outcome of the above command？（）A、 After two days， the backup will be marked obsolete.B、 After two days， the backup will be deleted from the media.C、 If the RMAN repository has records of two or more recent backups of a file， then the older backup will be deleted from the media.D、 If the RMAN repository has records of two or more recent backups of a file， then the older backup will be marked obsolete.
考题
Your database is in NOARCHIVELOG mode. After which two operations you should take the backup of control file？（）A、adding a new user to the databaseB、dropping a user from the databaseC、dropping a table from the databaseD、dropping a data file from a tablespaceE、adding a new tablespace to the database
考题
You create the sales report and run it in the live previewer. After which change would the live previewer require the data? （）A、Removing column from the available list in the report wizard. B、Removing the column from the displayed list in the report wizard. C、Changing the display width of a column in the report wizard. D、Adding a column to both the available list and displayed list in the report wizard. E、Removing a column in the live previewer.
考题
You issue the following RMAN command to set a retention policy on a database: RMANCONFIGURE RETENTION POLICY TO REDUNDANCY 2; What will be the outcome of issuing this command? （）A、After two days, a backup will be marked obsoleteB、After two days, a backup will be deleted from the mediaC、If the RMAN repository has records of two or more recent backups of a file, then older backups will be deleted from the media.D、If the RMAN repository has records of two or more recent backups of a file, then older backups will be marked obsolete.
考题
多选题Your database is in NOARCHIVELOG mode. After which two operations you should take the backup of control file？（）Aadding a new user to the databaseBdropping a user from the databaseCdropping a table from the databaseDdropping a data file from a tablespaceEadding a new tablespace to the database
考题
单选题A system administrator has disabled USB ports after experiencing several virus outbreaks. A user needs to transfer several extremely large work related files from their home desktop computer to their work desktop computer. Which of the following will allow the user to transfer the needed files?（）A
An IEEE-1394 deviceB
A NIC deviceC
An IrDA deviceD
A FDD device
考题
单选题You issue the following RMAN command to set a retention policy on a database： RMANCONFIGURE RETENTION POLICY TO REDUNDANCY 2； What will be the outcome of the above command？（）A
After two days， the backup will be marked obsolete.B
After two days， the backup will be deleted from the media.C
If the RMAN repository has records of two or more recent backups of a file， then the older backup will be deleted from the media.D
If the RMAN repository has records of two or more recent backups of a file， then the older backup will be marked obsolete.
考题
单选题After removing several obsolete programs from a PC, a user is experiencing slower than usuallyprocessing times. Which of the following would be the BEST way to speed up the processing? （）A
Use an external hard drive.B
Defrag the hard drive.C
Add more RAM to the computer.D
Install a larger hard drive.
考题
单选题What is the purpose of configuring the router as a PPPoE client?（）A
to provide VPN access over L2TPB
to enable PPP session from the router to the termination device at the headend for metro Ethernet connectivityC
for DSL connectivity and removing the need for the end - user PC to ru n the PPPoE client softwareD
for connecting the router to a cable modem, which bridges the Ethernet frames from the router to the cable modem termination system
考题
多选题A user is reporting that a PC will suddenly shut down without warning. The PC boots up with no problems, but after using the PC for a short time, the PC turns off. Which of the following components should the technician check?（） (Select TWO).ACPU fanBRAMCHard driveDPower supplyEVideo card
考题
单选题It can be inferred from the passage that ginkgo ______.A
can improve memoryB
works after the first pillC
can produce several side effectsD
causes mild stomach discomfort
考题
单选题You would like to configure your PC's IP address of 10.10.0.156 as an FTP host with a username of user and a password of mypass.Which configuration command accomplishes this goal?（）A
host user pc 10.10.0.156 ftp user mypassB
host user pc 10.10.0.156 tftp user mypassC
host name user pc 10.10.0.156 ftp user mypassD
host name user pc 10.10.0.156 tftp user mypass
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