Linux Device Drivers Certification

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Get Linux Device Drivers Certificate from MachineLearning.org.in which you can share in the Certifications section of your LinkedIn profile, on printed resumes, CVs, or other documents. 

Exam Details:

• Format: Multiple Choice Question
• Questions: 10
• Passing Score: 8/10 or 80%
• Language: English

Question 1: Which kernel subsystem is responsible for managing and controlling device drivers in Linux?

• Process Management
• I/O Management
• Device Filesystem
• Driver Core

Question 2: What does the acronym “GPIO” stand for in the context of Linux device drivers?

• General Purpose Input/Output
• Graphics Processing and Input/Output
• Grouped Peripheral Input/Output
• Global Productivity Interface Output

Question 3: Which kernel module API is used to register a character device driver?

• dev_register
• char_register
• register_chrdev
• create_chardev

Question 4: Which kernel data structure represents a physical or virtual device that is managed by a device driver?

• Proc
• Node
• Device Tree
• Device Object

Question 5: In the context of Linux kernel modules, what is the purpose of the “module_init” macro?

• It initializes the module’s internal data structures.
• It specifies the initialization function to be called when the module is loaded.
• It provides information about the module’s license.
• It defines the module’s version number.

Question 6: Which syscall is used by user-space programs to communicate with device drivers?

• Ioctl
• Devctl
• Sysioctl
• Devcmd

Question 7: Which kernel mechanism is used to manage power state transitions of devices to optimize energy consumption?

• Device Power Manager
• Energy Control Subsystem
• ACPI (Advanced Configuration and Power Interface)
• Power Management Unit

Question 8: In Linux, which of the following is NOT a common character device file?

• /dev/tty
• /dev/sda
• /dev/null
• /dev/random

Question 9: Which type of Linux device driver provides an interface to virtual devices, often used for inter-process communication?

• Network Driver
• Virtual I/O Driver
• TTY Driver
• Block Driver

Question 10: Which command is used to load a kernel module into the running Linux kernel?

• Modadd
• Insmod
• Loadmod
• Kernload

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