Linux+ Networking Chapter 13

20 Questions | By Ajeff | Last updated: Mar 20, 2022 | Total Attempts: 274

Questions

Settings

Create your own Quiz

Linux+ Networking Chapter 13

Questions and Answers

1.

On which part of the maintenance cycle do Linux administrators spend the most time?
- A.
  
  Monitoring
- B.
  
  Proactive maintenance
- C.
  
  Reactive maintenance
- D.
  
  Documentation
2.

Which of the following files is likely to be found in the /var/log/sa directory over time?
- A.
  
  15
- B.
  
  Sa39
- C.
  
  Sa19
- D.
  
  00
3.

Which of the following commands can be used to display memory statistics? (Choose all that apply.)
- A.
  
  Free
- B.
  
  Sar
- C.
  
  Vmstat
- D.
  
  Iostat
4.

Which command indicates the shared libraries required by a certain executable program?
- A.
  
  Ldconfig
- B.
  
  Ldd
- C.
  
  Rpm –V
- D.
  
  Slconfig
5.

Which directory must you be in to compile the Linux kernel?
- A.
  
  /lib/modules
- B.
  
  /usr/src/linux
- C.
  
  /lib/modules/(kernel-version)
- D.
  
  /usr/src/linux/(kernel-version)
6.

Which command can be used to create a ramdisk that will be used at boot time to load SCSI support?
- A.
  
  Mkramdisk
- B.
  
  Load ramdisk
- C.
  
  Image=ramdisk
- D.
  
  Mkinitrd
7.

Which command can be used to apply a patch to kernel source code?
- A.
  
  Patch
- B.
  
  P0patch
- C.
  
  Make patch
- D.
  
  Make patch_install
8.

When an application stops functioning, what should you try first?
- A.
  
  Restart the application.
- B.
  
  Research the solution using the Internet.
- C.
  
  Switch to Single User Mode.
- D.
  
  Kill all other applications running in memory.
9.

Which of the following steps is not a common troubleshooting procedure?
- A.
  
  Test the solution.
- B.
  
  Isolate the problem.
- C.
  
  Delegate responsibility.
- D.
  
  Collect information.
10.

You can recompile the kernel to ________________. (Choose all that apply.)
- A.
  
  Add support for a certain hardware device
- B.
  
  Remove support for a certain hardware device
- C.
  
  Change kernel features
- D.
  
  Improve system performance
11.

Which command can be used to insert a module into the Linux kernel? (Choose all that apply.)
- A.
  
  Insmod
- B.
  
  Rmmod
- C.
  
  Lsmod
- D.
  
  Modprobe
12.

Which files can be used to load modules upon system startup? (Choose all that apply.)
- A.
  
  /etc/modprobe.conf
- B.
  
  /etc/fstab
- C.
  
  /etc/modtab
- D.
  
  /etc/rc.d/rc.local
13.

Which of the following programs detects and installs new hardware detected at boot time?
- A.
  
  Insmod
- B.
  
  Kudzu
- C.
  
  Lba32
- D.
  
  LILO
14.

Which command can increase the number of filehandles that programs can open in a shell?
- A.
  
  Ldd
- B.
  
  Ulimit
- C.
  
  Lba32
- D.
  
  Top
15.

Which command can be used to create a system boot disk?
- A.
  
  Makeboot
- B.
  
  Bootdisk
- C.
  
  Mkboot
- D.
  
  Mkbootdisk
16.

What will the command sar –W 3 50 do?
- A.
  
  Take 3 swap statistics every 50 seconds.
- B.
  
  Take 50 swap statistics every 3 seconds.
- C.
  
  Take 3 CPU statistics every 50 seconds.
- D.
  
  Take 50 CPU statistics every 3 seconds.
17.

Which directory stores most modules on a Linux system?
- A.
  
  /lib/modules/(kernel-version)
- B.
  
  /usr/src/linux-(kernel-version)
- C.
  
  /usr/lib/modules/(kernel-version)
- D.
  
  /usr/src/linux
18.

When the fsck command cannot repair a nonroot filesystem, you should immediately restore all data from tape backup. True or False?
- A.
  
  True
- B.
  
  False
19.

When performing a sar –u command, you notice that %idle is consistently 10%; is this good or bad?
- A.
  
  Good, because the processor should be idle more than 5% of the time
- B.
  
  Good, because the processor is idle 90% of the time
- C.
  
  Bad, because the processor is idle 10% of the time and perhaps a faster CPU is required
- D.
  
  Bad, because the processor is idle 10% of the time and perhaps a new hard disk is required
20.

Which command can be used to modify the IRQ and I/O address settings of a serial device?
- A.
  
  Setserial
- B.
  
  Modserial
- C.
  
  Serial2K
- D.
  
  Lsmod