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单选题
The nice value is 80 in the ps listing. Which command is used to change this to a value of 100？（）
A
renice 100 {PID}
B
renice -n 20 {PID}
C
renice --20 {PID}
D
renice -n -100 {PID}
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Given:Which two statements are true about the result if the default locale is Locale.US?()
A.The value of b is 2.B.The value of a is 3.14.C.The value of b is 2.00.D.The value of a is 3.141.E.The value of a is 3.1415.F.The value of a is 3.1416.G.The value of b is 2.0000.
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The monitor traffic command closely resembles which UNIX－based utility?()
A.ps -xB.passwdC.ls -a-lD.tcpdump
考题
AKVMsystemmayconnectwhichofthefollowing?()
A.PS/2mouseB.USBmouseC.SVGAdisplayD.NICE.USBmemorystickF.HBAcard
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Which environment variable must be changed in auser’s profile so that upon login,the command prompt identifies the server?()
A.PMTB.PS1C.PRTD.PT1
考题
What do you think of your new teacher?（）AHe came to teach us last week.BHe teaches us English.CHe has two children.DHe is very nice
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After running the vmstat command， which of the following would most likely cause the value in the blocked column to be unusually high？（）A、 Kernel threadB、 Too many usersC、 Memory shortageD、 Network contention
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Which environment variable must be changed in a user’s profile so that upon login， the command prompt identifies the server？（）A、PMTB、PS1C、PRTD、PT1
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The output of the command displays the following. The output of the command displays the following. FSUID PID PPID C PRI NI ADDR SZ TTY TIME CMD 120005 A0 40931 392412 67 20 1b23 201 pts/0 0.00 scriptA 100023 A 0 34596 23441 4 69 20 a328 341 pts/00.00 scriptB. What must be done to ensure scriptB receives dispatching priority over scriptA?（）A、Run 'nice' command to increase the the NI value of scriptBB、Run 'nice' command to increase the the NI value of scriptAC、Run 'renice' command to increase the the NI value of scriptBD、Run 'renice' command to increase the the NI value of scriptA
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The nice value is 60 in the ps listing. Which command is used to change this to a value of 20？（）A、 renice -n -20 {PID}B、 renice -n 20 {PID}C、 renice -n -40 {PID}D、 renice -n 40 {PID}
考题
The nice value is 80 in the ps listing. Which command is used to change this to a value of 100？（）A、 renice 100 {PID}B、 renice -n 20 {PID}C、 renice --20 {PID}D、 renice -n -100 {PID}
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NumberFormat nf= NumberFormat.getInstance（）； nf.setMaximumFractionDigits（4）； nf.setMinimumFractionDigits（2）； String a = nf.format（3.1415926）； String b = nf.format（2）； Which two are true about the result if the default locale is Locale.US？（）A、 The value of b is 2.B、 The value of a is 3.14.C、 The value of b is 2.00.D、 The value of a is 3.141.E、 The value of a is 3.1415.F、 The value of a is 3.1416.G、 The value of b is 2.0000.
考题
Which two statements are true about a bitmap index？ （）A、It is recommended for the columns that have unique values.B、It can be converted to a B-tree index by using the ALTER INDEX command.C、It has a bitmap segment for each distinct value in the key column， containing a string of bits in which each bit represents the presence or absence of a key column value.D、Updating the key column locks the whole bitmap segment that contains the bit for the key value to be updated.
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Given： 12. NumberFormat nf = NumberFormat.getInstance（）； 13. nf.setMaximumFractionDigits（4）； 14. nf.setMinimumFractionDigits（2）； 15. String a = nf.format（3.1415926）； 16. String b = nf.format（2）； Which two statements are true about the result if the default locale is Locale.US？（）A、 The value of b is 2.00.B、 The value of a is 3.141.C、 The value of a is 3.14.D、 The value of b is 2.0000.E、 The value of a is 3.1415.F、 The value of a is 3.1416.G、 The value of b is 2.
考题
单选题After running the vmstat command， which of the following would most likely cause the value in the blocked column to be unusually high？（）A
Kernel threadB
Too many usersC
Memory shortageD
Network contention
考题
单选题To examine the Exhibit， press the Exhibit button. Using the "ps -mo THREAD" output as shown in the exhibit， which of the following conclusions is most appropriate to draw？（）A
This is a uniprocessor systemB
The "prog" process has a nice value of 107C
There are two active processors on this systemD
The "prog" process will only be scheduled to run on processor 0
考题
单选题The nice value is 60 in the ps listing. Which command is used to change this to a value of 20？（）A
renice -n -20 {PID}B
renice -n 20 {PID}C
renice -n -40 {PID}D
renice -n 40 {PID}
考题
多选题Given： 12. NumberFormat nf = NumberFormat.getInstance（）； 13. nf.setMaximumFractionDigits（4）； 14. nf.setMinimumFractionDigits（2）； 15. String a = nf.format（3.1415926）； 16. String b = nf.format（2）； Which two statements are true about the result if the default locale is Locale.US？（）AThe value of b is 2.00.BThe value of a is 3.141.CThe value of a is 3.14.DThe value of b is 2.0000.EThe value of a is 3.1415.FThe value of a is 3.1416.GThe value of b is 2.
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多选题Which two statements are true about a bitmap index？ （）AIt is recommended for the columns that have unique values.BIt can be converted to a B-tree index by using the ALTER INDEX command.CIt has a bitmap segment for each distinct value in the key column， containing a string of bits in which each bit represents the presence or absence of a key column value.DUpdating the key column locks the whole bitmap segment that contains the bit for the key value to be updated.
考题
多选题Given: Which two statements are true about the result if the default locale is Locale.US?（）AThe value of b is 2.BThe value of a is 3.14.CThe value of b is 2.00.DThe value of a is 3.141.EThe value of a is 3.1415.FThe value of a is 3.1416.GThe value of b is 2.0000.
考题
多选题NumberFormat nf= NumberFormat.getInstance（）； nf.setMaximumFractionDigits（4）； nf.setMinimumFractionDigits（2）； String a = nf.format（3.1415926）； String b = nf.format（2）； Which two are true about the result if the default locale is Locale.US？（）AThe value of b is 2.BThe value of a is 3.14.CThe value of b is 2.00.DThe value of a is 3.141.EThe value of a is 3.1415.FThe value of a is 3.1416.GThe value of b is 2.0000.
考题
单选题有以下程序：#include main(){ char s[10] = verygood, *ps = s; ps += 4; ps = nice; puts(s);}程序的运行结果是（ ）。A
niceB
veryniceC
nicegoodD
verygood
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