FCPC - COMPORG - MAct2

What is the primary purpose of system calls in assembly language?

• To perform arithmetic calculations
  

• To manage memory allocation

• To interact with the operating system

• To define new programming languages

Which register typically stores the result of a system call in x86 assembly?

• EAX

• EBX

• ECX

• EDX

What is the purpose of the int 0x80 instruction in 32-bit x86 assembly?

• To call a function

• To trigger a system call

• To perform an arithmetic operation

• To jump to a memory address

Which system call is used to open a file in Linux?

• sys_read

• sys_open

• sys_write

• sys_close

In x86 assembly, what is the purpose of the ecx register during a system call?

• To store the system call number

• To store the file descriptor

• To store data to be written

• To count the number of loop iterations

Which of the following system calls is used to create a new process in Linux?

• sys_open

• sys_close

• sys_fork

• sys_read

What does the exit system call do in Linux?

• Opens a new file

• Reads data from a file

• Terminates the current process

• Writes data to a file

Which register is commonly used to store file descriptors in assembly language?

• EAX

• EBX

• ECX

• EDX

Which assembly language instruction is used to create a new process in Linux?

• int

• syscall

• fork

• call

Which system call is used to read data from the standard input in Linux?

• sys_read

• sys_open

• sys_write

• sys_close