Ch15 Hardware Configuration Exam

Ch15 Hardware Configuration Exam

1. HALD is the abbreviation for:

   • Hardware Abstraction Layer Daemon
   • Hardware Abstraction Layer Driver
   • Hardware Availability Layer Daemon
   • Hardware Attribute Layer Daemon

2. Interrupts cannot be shared between devices. True or False?

   • True
   • False

3. The _____ command is used to load a module along with its dependencies.

   • modprobe
   • ldmod
   • lsmod
   • insmod

4. The _____ is a kernel module used by the kernel to manage hardware devices.

   • Configuration file
   • Subsystem
   • Driver
   • Interface

5. What is the maximum memory that a 64 bit processor can theoretically use?

   • 2 GiB
   • 8 GiB
   • 4 GiB
   • 16 EiB

6. What is the notification mechanism used to inform programs about a change in state of hardware devices?

   • Programs query HALD directly
   • DBUS forwards queries from programs to HALD
   • DBUS sends notifications to HALD
   • HALD uses dbus to send notifications

7. Which command is used to view the summary of the RAM and swap space?

   • lsmem
   • free
   • iostat
   • du

8. Which of the following commands is used to view the details of an external drive connected to a USB port?

   • lspci -u
   • lsusb-u
   • lsmod -u
   • lsusb -v

9. Which of the following commands is used to view the network interface controller connected on the PCI bus?

   • lsnet
   • lsmod
   • lspci
   • lsusb

10. Which of the following commands is used to view the summary of CPUs in the system?

    • more /proc/cpuinfo
    • ls -cpu
    • cpustat
    • lscpu

11. Which of the following is not a characteristic of firmware?

    • Typically stored in ROM
    • Change runlevels
    • Tests the components upon startup
    • Change settings to affect the use of external devices

12. Which of the following is not a function of the udev subsystem?

    • Maintain log files
    • Create device node when a new device is connected
    • Maintain psuedo filesystem in the /dev directory
    • Remove device node when a device is removed

13. Which of the following is not a mass storage device?

    • FireWire
    • Thunderbird
    • USB
    • SATA drive

14. Which of the following is not true about kernel modules?

    • They are plug and play hardware devices
    • They can be compiled into the kernel itself
    • They are loaded automatically by the kernel
    • They are software to support devices

15. Which of the following can be used to view details about USB devices? (choose two)

    • lsmod
    • lsusb
    • usbprobe
    • usb-devices
    • ls -usb

16. Integrated peripherals are embedded into the _______ of a system:

    • RAM
    • Motherboard
    • CPU
    • Bootloader

17. Which of the following are attributes of the sysfs subsystem: (choose three)

    • Is an in-memory filesystem
    • Defines rules and permissions
    • Is mounted as the /sys directory
    • Provides information about the kernel