问题：单选题Which of the following metrics provided by the iostat report is used to initially determine if a system is I/O bound？（）A  % idleB  % sysC  % userD  % iowait...

Sunday, February 11, 2024

问题：单选题Which of the following statements are FALSE concerning the defragfs command？（）A  The defragfs command should not be run against file systems and logical volumes that contain mostly transitory information， such as /tmp.B  The defragfs command should not...

Wednesday, February 21, 2024

问题：单选题Which of the following commands should be used to determine which disk of a system is experiencing a disk I/O performance problem？（）A  filemonB  istatC  vmstatD  iostat...

Thursday, December 14, 2023

问题：单选题Which of the following commands displays the number of system calls per second that are being executed？（）A  sarB  pstatC  iostatD  filemon...

Sunday, February 11, 2024

问题：单选题While monitoring a system that is CPU bound， which of the following output is most likely to occur？（）A AB BC CD D...

Wednesday, February 21, 2024

问题：单选题When a system has both online transaction processing as well as large batch processing， which of the following common procedures will best help to improve system performance？（）A  Boost the priority of batch jobs.B  Schedule batch runs to reduce content...

Thursday, December 14, 2023

问题：单选题The system administrator notices that after running netstat -rn， several small c’s are showing up under the flags columns， and routes that were not defined are also showing up. How can these cloned routes be stopped？（）A  By default cloned routes are tu...

Friday, January 12, 2024

问题：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}...

Saturday, January 6, 2024

问题：Which of the following commands should be used to monitor th...

Friday, September 16, 2022

问题：单选题Which of the following tools should be used to report in-depth information about file fragments？（）A  defragfsB  istatC  filemonD  fileplace...

Wednesday, February 21, 2024

问题：单选题Which command series should be used to determine whether file paging or paging space paging is a problem when running a program from an idle system？（）A  foo ； lsps -sB  tprof -kx ； fooC  iostat ； foo ； iostatD  vmstat -s ； foo ； vmstat s...

Saturday, January 6, 2024

问题：单选题How are hardware errors removed from an error report that are more than 30 days old？（）A  /usr/bin/errpt -d H 30B  /usr/sbin/errclear - J H 30C  /usr/bin/errclear -d H 30D  /usr/sbin/errclear -j H 30...

Monday, January 15, 2024

问题：单选题Comprehensive Service Level Agreements typically do not address：（）A  Roles  responsibilitiesB  Headcount  budgetsC  Reporting policiesD  Penalites...

Sunday, February 11, 2024

问题：单选题A typical example of a process # 19082 in the /proc file would be：      # ls -l /proc/19082      total 0   dr-xr-xr-x  1  root system 0    Sep 15  15：12  .      dr-xr-xr-x  1  root system 0    Sept 15 15：12  ..      -rw-------  1  root system 0    Sept...

Wednesday, May 3, 2023

问题：单选题When monitoring a system using vmstat with an interval， the metrics under page po represent which of the following phrases？（）A  The number pages over the limitB  The pages to paging space per secondC  The number of page operations per secondD  The numb...

Sunday, June 11, 2023

问题：单选题When a system has both online transaction processing as well as large batch processing， which of the following common procedures will best help to improve system performance？（）A  Boost the priority of batch jobs.B  Schedule batch runs to reduce content...

Thursday, December 14, 2023

问题：单选题Which of the following tools should be used to report current network status and is often used to check the reliability of a network？（）A  netpmonB  netstatC  nfsstatD  vmstat...

Sunday, February 11, 2024

问题：单选题Which command series should be used to determine whether file paging or paging space paging is a problem when running a program from an idle system？（）A  foo ； lsps -sB  tprof -kx ； fooC  iostat ； foo ； iostatD  vmstat -s ； foo ； vmstat s...

Thursday, December 14, 2023

问题：单选题Page replacements algorithm steals file pages only when percent of RAM occupied by filepages（）A  falls below minperm.B  is between minperm and maxperm.C  higher than maxperm.D  lower than maxperm....

Sunday, June 11, 2023

问题：单选题Which of the following RAID levels provide the best performance for a system where there are mostly writes occurring？（）A  RAID 0B  RAID 1C  RAID 3D  RAID 5...

Sunday, August 27, 2023