Linux Kernel Programming Quiz

Linux Kernel Quiz

This is a quiz on basics of linux kernel programming.

1. The fuction in the module that gets called on insmod is

open
read
init
write


2. Which structure holds the pointer to file_operations structure

file
task_struct
file_operations
None of the above


3. The default size of the entries on /proc are

Zero
4KB
Depends on the entry
Depends on Kernel


4. In a device driver dev_t data type represents

The magic number
Only The mjor number
Combination of Major and minor number
Only the minor number


5. The file Module.symvers, generated when compiling an external module holds

The symbols exported by the module
The symbols exported by the kernel
All the symbols present in the module
The list of symbols not used by the module


6. modprobe refers to which file to find out the dependencies

modules.dep
modules.order
dep.module
modules.symbols


7. modules.dep is generated by which command

depmpod
insmod
modproe
rmmod


8. The character and block devices are listed in which folder

/media
/dev
/devices
/char and /block


9. Functions in kernel generally

Return negative number to signal error
Retrun 1 to signal successful execution of function.
Retrun 0 to signal error
Return negative number to signal successful execution of the function.


10. which command gives information about a module

infomod
modinfo
moduleinfo
moddata