3. 201.1 Kernel components

"This type of kernel contains all drivers for all the various types of supported hardware, regardless if your system uses that hardware".

What type of kernel does the above statement refer to?

• Monolithic Kernel

• Linux Kernel

• Microkernel

• Standard Kernel

"They're loadable hardware device drivers".

What does the above statement refer to?

• Kernel modules

• Monolithic kernel

• Microkernel

• Kernel drivers

"These types of kernel are designed such that only the least possible amount of code is run in supervisor mode, but this type of kernel was never a design goal for Linux kernels".

• Monolithic kernel

• Microkernel

• Kernel module

• Standard kernel

"What type of kernel does the Linux kernel is?"

• Monolithic kernel

• Microkernel

• Hybrid: Monolithic and microkernel

• Standard kernel

It is still possible to build the Linux kernel as a monolithic kernel.

Which are some advantages of building a monolithic kernel?

• It has a smaller footprint as you can download and build just the required parts

• No more kernel modules are needed

• The dependencies are clearer

• It makes the system more secure, raising around 100% of the kernel's security.

"When stored on disk most kernel images are compressed to save space. Which are two types of compressed kernel types".

• zImage

• xzImage

• kzImage

• bzImage

Choose all the possible differences between zImage and bzImage compressed kernel types?

• The maximum allowed kernel size for a zImage is 512Kb

• bzImage does not pose a limit size

• bzImages uses C, and zImage uses Java

• bzImage kernel is the preferred image type for larger kernels

• zImage is for older kernels. bzImage is for newest kernels.

What did initially the kernel version number parts consist of?

• Major release number

• OS type

• Kernel type

• Minor release number

• Patch level

"In 2004, after the release of 2.6.0, the versioning system was changed, and for the next seven years the kernel remained at 2.6. A fourth number was added to. What did the fourth number mean?".

• Kernel version

• Major release

• Minor release

• Patch level

• Bugs and security fixes

What is kernel live patching?

• It's the possibility to install kernel patches without the need to reboot the system.

• It's possible to install a new Linux kernel and keep the older one.

• It's the possibility to install a new Linux kernel and compile it.

• It's the possibility to install a new kernel, compile it without the need to reboot the system.