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Question 1 of 30 Quiz ID: q1

What is the primary purpose of the BIOS during the computer boot process?

Manages user logins

Reads the hard drive and loads the boot loader into RAM

Executes user applications

Formats the hard drive

Question 2 of 30 Quiz ID: q2

In a simple OS kernel project, why do we need a loader written in Assembly?

To print messages on the screen

To set the stack pointer and call the kernel's main function

To compile C++ code

To manage files

Question 3 of 30 Quiz ID: q3

Which memory address is typically used for directly writing characters to video memory in a simple PC OS kernel?

0x00007C00

0xB8000

0xFFFF0000

0x100000

Question 4 of 30 Quiz ID: q4

Why is extern "C" used with the kernel main function in C++?

To allow the loader to call the function without name mangling

To allow usage of C++ exceptions

To enable dynamic memory allocation

To support printf

Question 5 of 30 Quiz ID: q5

What is the purpose of the .multiboot section and the magic number 0x1badb002 in kernel development?

To identify the kernel file to the boot loader

To set the stack pointer

To initialize video memory

To allocate heap space

Question 6 of 30 Quiz ID: q6

What is the recommended emulator for running Pintos OS?

VMware

VirtualBox

QEMU

Bochs

Question 7 of 30 Quiz ID: q7

Which Linux command can you use to verify that your toolchain supports 32-bit x86 architecture?

uname -a

objdump -i | grep elf32-i386

gcc --version

lscpu

Question 8 of 30 Quiz ID: q8

What is the purpose of the Makefile in the Pintos kernel project?

To edit the kernel source code

To automate compilation and linkage of project files

To manage user commands

To allocate memory

Question 9 of 30 Quiz ID: q9

Where can you find utility scripts like pintos and pintos-gdb in the Pintos distribution?

src/kernel/

src/utils/

src/devices/

src/threads/

Question 10 of 30 Quiz ID: q10

What does the Pintos shell prompt look like according to the lab material?

$

#

CS2042>

Pintos>

Question 11 of 30 Quiz ID: q11

Which of the following is NOT a shell command you are required to implement in the Pintos OS lab?

whoami

shutdown

mkdir

ram

Question 12 of 30 Quiz ID: q12

In Pintos OS, which command is used to display the number of seconds since the Unix epoch?

time

date

uptime

seconds

Question 13 of 30 Quiz ID: q13

Why can’t you use the standard C library functions (like printf, scanf) in Pintos kernel mode?

Because they are not implemented in C

Because the kernel runs in user mode

Because the standard C library uses system calls unavailable in kernel mode

Because Pintos does not support input/output

Question 14 of 30 Quiz ID: q14

Which of the following is a recommended tool for debugging Pintos OS, as per the setup instructions?

cgdb

nano

emacs

gedit

Question 15 of 30 Quiz ID: q15

Which file should you edit to add the toolchain binaries to your environment PATH?

/etc/passwd

.bashrc

Makefile

kernel.c

Question 16 of 30 Quiz ID: q16

If i386-elf-gcc is not recognized after building the toolchain, what is the most likely cause?

The kernel is corrupted

The utility scripts are missing

The PATH environment variable is not updated correctly

The system does not support virtual memory

Question 17 of 30 Quiz ID: q17

What is the function of the shutdown command in the Pintos shell?

Restarts the shell

Shuts down Pintos OS and exits the QEMU emulator

Logs out the current user

Deletes all files

Question 18 of 30 Quiz ID: q18

Which Pintos directory contains the file where you implement the shell's main loop?

threads/

devices/

lib/

utils/

Question 19 of 30 Quiz ID: q19

What is the purpose of the .space 2*1024*1024; directive in the loader assembly code?

To clear the screen

To allocate space for the kernel stack

To allocate space between kernel and kernel stack

To reserve space for video memory

Question 20 of 30 Quiz ID: q20

What is the outcome if you run make in pintos/src/threads and everything is set up correctly?

The kernel source files will be deleted

The kernel and shell will be compiled and built

QEMU will automatically start

The system will reboot

Question 21 of 30 Quiz ID: q21

Which utility script is a wrapper around i386-elf-gdb and loads GDB macros for Pintos?

pintos-run

pintos-gdb

pintos-debug

pintos-emu

Question 22 of 30 Quiz ID: q22

Why is it recommended to use a UNIX/LINUX based OS for Pintos development?

Because Windows does not support GCC

Because UNIX/LINUX terminates processes faster

Because the toolchain and emulator are easier to set up and run

Because QEMU does not run on Windows

Question 23 of 30 Quiz ID: q23

Which function is the entry point for the Pintos kernel code (after the loader)?

main

kernelMain

pintos_main

start

Question 24 of 30 Quiz ID: q24

What is the purpose of the priority command in the Pintos shell?

To set thread priority

To display the thread priority of the current thread

To view process priorities

To change CPU scheduling

Question 25 of 30 Quiz ID: q25

What happens if no command line arguments are supplied to Pintos at boot?

The kernel runs an interactive shell

The system shuts down

The kernel panics

The user is prompted for input

Question 26 of 30 Quiz ID: q26

Which file in Pintos should you examine to understand or implement the shell functionality?

devices/input.c

threads/init.c

lib/stdio.c

kernel/loader.c

Question 27 of 30 Quiz ID: q27

Which command in the Pintos shell is used to quit the interactive shell?

halt

quit

exit

close

Question 28 of 30 Quiz ID: q28

What is the recommended way to run Pintos OS after making and building it?

./run

make run

make build

pintos --

Question 29 of 30 Quiz ID: q29

Which of the following is NOT an essential requirement to build and run Pintos OS?

Perl >= 5.8.0

QEMU

An x86 cross-compiler toolchain

Python 3.10

Question 30 of 30 Quiz ID: q30

What is the main reason for modifying the PATH environment variable during Pintos setup?

To enable network access

To run utility scripts and toolchain binaries from anywhere in the terminal

To change default shell

To enable debugging

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