A system was r

题目

A system was running properly until a reboot. Following the reboot, the system LED displayed cycles between 0223 and 0229. Which of the following procedures should be performed next?()

  • A、Power down then power up the system
  • B、Boot into diagnostic mode and run fsck
  • C、Boot from installation media and run bosboot
  • D、Boot into maintenance mode and check the bootlist
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相似问题和答案

第1题:

publicstaticvoidtest(Stringstr){intcheck=4;if(check=str.length()){System.out.print(str.charAt(check-=1)+,);}else{System.out.print(str.charAt(0)+,);}}andtheinvocation:test(”four”);test(”tee”);test(”to”);Whatistheresult?()

A.r,t,t,

B.r,e,o,

C.Compilationfails.

D.Anexceptionisthrownatruntime.


参考答案:C

第2题:

下列程序执行的结果是______。 public class ex6 { public static void main(String[] args) { char ch='8'; int r=10; switch(ch+l) { case '7': r=r+3; case '8': r=r+5; case '9': r=r+6; break; default: ; } System.out.print(r); } }

A.14

B.13

C.16

D.10


正确答案:C

第3题:

执行下面程序后输出的正确结果是 public class Test{ public static void main(String args[]){ byte x=3,y=4; long r=80L; System.out.print(r/y); System.out.print(","); System.out.print(x/y); } }

A.20.0,1

B.20.0,1.0

C.20,0

D.20,1.0


正确答案:C
解析:本题考查Java语言的二元运算符的使用。Java中的二元运算符适用于所有数值型数据类型,包括整型和浮点型。但考生需要注意,如果两个操作数全为整型,那么,只要其中一个为long型,则表达式结果为long型;其他情况下,即使两个操作数全是byte或short型,表达式结果也是int型;如果操作数为浮点型,那么只要其中一个为double型,表达式结果就是 double型;只有两个操作数全是float型或其中一个是float型而另外一个是整型时,表达式结果是float型。所以选项C为正确答案。考生如果理解了L的含义,就能很容易回答。考生务必注意操作数类型不同时,运算结果的类型,同时注意当“/”和“%”运算中除数为0时会产生异常。

第4题:

Refer to the exhibit. Autonomous systems 200 and 300 have EBGP sessions established with their directly connected routers in au tonomous system 100. IGP has been configured on all routers in autonomous system 100 and they successfully exchange routing updates. Traffic originated in autonomous system 200 cannot reach the destination autonomous system 300. What configuration shoul d be done on the routers in autonomous system 100 in order for the traffic coming from autonomous system 200 to be forwarded to autonomous system 300?()

A. IBGP session must be established between routers R1 R2 and R2 R3, and the synchronization must be turned off.

B. IBGP speakers within autonomous 100 must be fully meshed, and the synchronization must be turned on.

C. IBGP session must be established between routers R1 R2 and R2 R3, and the synchronization must be turned on.

D. IBGP session mu st be established between routers R1 and R3, and the synchronization must be turned off.

E. IBGP speakers within autonomous 100 must be fully meshed, and the synchronization must be turned off.

F. IBGP session must be established between routers R1 and R3, and the synchronization must be turned on.


参考答案:E

第5题:

The system administrator has requested that all setuid/setgid bits be removed from executables in application filesystem. Which command will achieve this?()

A. chmod -R o-s /application

B. chmod -R ug-s /application

C. chmod -R -s -o /application

D. chmod -R -s -ug /application


参考答案:B

第6题:

Runnabler=newRunnable(){publicvoidrun(){System.out.print(”Cat”);}};Threadt=newThread(r){publicvoidrun(){System.out.print(”Dog”);}};t.start();Whatistheresult?()

A.Cat

B.Dog

C.Compilationfails.

D.Thecoderunswithnooutput.

E.Anexceptionisthrownatruntime.


参考答案:B

第7题:

An administrator tries to change the checksum_offload setting on ent0, but the chdev command responds that the adapter is busy.What can be done to resolve this?()

A.Use chdev with -P flag and run cfgmgr.

B.Use chdev with -R flag and run cfgmgr.

C.Use chdev with -P flag and reboot the system.

D.Use chdev with -R flag and reboot the system.


参考答案:C

第8题:

YourcompanyhasaserverthatrunsWindowsServer2008R2.ActiveDirectoryCertificateServices(ADCS)isconfiguredasastandaloneCertificationAuthority(CA)ontheserver.YouneedtoauditchangestotheCAconfigurationsettingsandtheCAsecuritysettings.Whichtwotasksshouldyouperform()

A.ConfigureauditingintheCertificationAuthoritysnap-in.

B.Enableauditingofsuccessfulandfailedattemptstochangepermissionsonfilesinthe%SYSTEM32%\CertSrvdire

C.Enableauditingofsuccessfulandfailedattemptstowritetofilesinthe%SYSTEM32%\CertLogdirectory.

D.EnabletheAuditobjectaccesssettingintheLocalSecurityPolicyfortheActiveDirectoryCertificateServices


参考答案:A, D

第9题:

Refer to the exhibit. Network 10.0.0.0/8 is being advertised to autonomous system 65550 via both external links. Which statement about the preferred path to the 10.0.0.0/8 network is true? ()

A. Router R2 will be preferred because it has the higher neighbor IP address.

B. Router R2 will be preferr ed because its neighbor has a lower autonomous system number.

C. Router R1 will be preferred because it has a lower local preference.

D. Router R2 will be preferred because it has a higher local preference.

E. Router R1 will be preferred because its nei ghbor has the higher autonomous system number.

F. Router R1 will be preferred because it has the lower neighbor IP address.


参考答案:D

第10题:

The following entry is in the /etc/host.equiv and /home/jsmith/.rhosts file on server Alpha:+ jsmith.What does this entry indicate?()

  • A、The user "jsmith" can use r-commands from any server to server Alpha system-wide
  • B、The user "jsmith" can use r-commands from server Alpha to any server system-wide
  • C、The user "jsmith" can use r-commands from server Alpha to any server with a /home/jsmith directory
  • D、The user "jsmith" can use r-commands from any server to server Alpha only in the /home/jsmith directory

正确答案:A

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