COP 4600 Exam 1 UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
What pieces of hardware are in the CPU? - CORRECT ANSWER Registers, ALU, and control
unit
Hardware which serves as the CPUs memory. There are special and general purposed of these -
CORRECT ANSWER Registers
Hardware which does arithmetic and logical computations - CORRECT ANSWER ALU
Hardware which tracks state/status. Also controls other components - CORRECT ANSWER
Control unit
Instruction cycle responsible for loading the instruction - CORRECT ANSWER Fetch
Instruction cycle responsible for finding the opcode/operands of the instruction and interpreting it -
CORRECT ANSWER Decode
Instruction cycle responsible for carrying out the instruction - CORRECT ANSWER Execute
Protected instructions can only be executed in a ____________ - CORRECT ANSWER
Protected state
Legacy boot process - CORRECT ANSWER BIOS
What does BIOS stand for? - CORRECT ANSWER Binary Input Output System
The ________ bootstraps the boot sector - CORRECT ANSWER Bootloader
What does bootstrap mean? - CORRECT ANSWER Loading up the computer
,Why are the bootsector and bootloader separate? - CORRECT ANSWER Bootsector is too
small
Where is the BIOS init stored? - CORRECT ANSWER The motherboard
What boot process is usable on x86-64 (i386) standalone PCs? - CORRECT ANSWER BIOS
What boot process has standard for ARM chipset systems? - CORRECT ANSWER Neither
Which boot process has standardized NVRAM locations for system variables? - CORRECT
ANSWER UEFI
Which boot process uses a dedicated bootloader partition? - CORRECT ANSWER BIOS
Which boot process is usable on x86-64 (x64) standalone PCs? - CORRECT ANSWER Both
Newer boot process - CORRECT ANSWER UEFI
Which boot process simplifies diskless systems? - CORRECT ANSWER UEFI
What are the functions of an OS? - CORRECT ANSWER Loading programs onto machine,
controlling I/O devices, managing resources (memory, CPU), multi-tasking execution, data protection
(permissions), and task interaction (pipes, networking)
Mode for directly manipulating hardware - CORRECT ANSWER Kernel mode
T/F: No device is directly accessed without the kernel - CORRECT ANSWER True
T/F: Only system libraries can invoke system calls - CORRECT ANSWER False
, T/F: The system call invokes code written by system developers, while a procedure call invokes code
written by an application programmer - CORRECT ANSWER False
A running program is in ______ - CORRECT ANSWER Execution
When we run a program, we create a _________ for it - CORRECT ANSWER Process
Features of a process - CORRECT ANSWER Has some address space, associated with specific
resources, computational element/object, and has one or more threads of execution
When we make a _______, we add a stack frame to the call stack - CORRECT ANSWER
Procedure call
Which pointer points to the beginning of the stack frame? - CORRECT ANSWER Frame
pointer
Which pointer points to the beginning of the call stack? - CORRECT ANSWER Stack pointer
A ___________ involves a switch into kernel mode for execution - CORRECT ANSWER
System call
Invocation of a system call causes a what? - CORRECT ANSWER Kernel trap
What must be stored in a kernel trap? - CORRECT ANSWER Current address, registers, etc
What gets the address from the interrupt vector during a kernel trap? - CORRECT ANSWER
OS dispatcher
Generation of pre-OS in which there was a control room in which a human operator ran programs
(plugboards) - CORRECT ANSWER Generation 0: The operator
When was Generation 0 of OS? - CORRECT ANSWER 1940s
QUESTIONS AND CORRECT ANSWERS
What pieces of hardware are in the CPU? - CORRECT ANSWER Registers, ALU, and control
unit
Hardware which serves as the CPUs memory. There are special and general purposed of these -
CORRECT ANSWER Registers
Hardware which does arithmetic and logical computations - CORRECT ANSWER ALU
Hardware which tracks state/status. Also controls other components - CORRECT ANSWER
Control unit
Instruction cycle responsible for loading the instruction - CORRECT ANSWER Fetch
Instruction cycle responsible for finding the opcode/operands of the instruction and interpreting it -
CORRECT ANSWER Decode
Instruction cycle responsible for carrying out the instruction - CORRECT ANSWER Execute
Protected instructions can only be executed in a ____________ - CORRECT ANSWER
Protected state
Legacy boot process - CORRECT ANSWER BIOS
What does BIOS stand for? - CORRECT ANSWER Binary Input Output System
The ________ bootstraps the boot sector - CORRECT ANSWER Bootloader
What does bootstrap mean? - CORRECT ANSWER Loading up the computer
,Why are the bootsector and bootloader separate? - CORRECT ANSWER Bootsector is too
small
Where is the BIOS init stored? - CORRECT ANSWER The motherboard
What boot process is usable on x86-64 (i386) standalone PCs? - CORRECT ANSWER BIOS
What boot process has standard for ARM chipset systems? - CORRECT ANSWER Neither
Which boot process has standardized NVRAM locations for system variables? - CORRECT
ANSWER UEFI
Which boot process uses a dedicated bootloader partition? - CORRECT ANSWER BIOS
Which boot process is usable on x86-64 (x64) standalone PCs? - CORRECT ANSWER Both
Newer boot process - CORRECT ANSWER UEFI
Which boot process simplifies diskless systems? - CORRECT ANSWER UEFI
What are the functions of an OS? - CORRECT ANSWER Loading programs onto machine,
controlling I/O devices, managing resources (memory, CPU), multi-tasking execution, data protection
(permissions), and task interaction (pipes, networking)
Mode for directly manipulating hardware - CORRECT ANSWER Kernel mode
T/F: No device is directly accessed without the kernel - CORRECT ANSWER True
T/F: Only system libraries can invoke system calls - CORRECT ANSWER False
, T/F: The system call invokes code written by system developers, while a procedure call invokes code
written by an application programmer - CORRECT ANSWER False
A running program is in ______ - CORRECT ANSWER Execution
When we run a program, we create a _________ for it - CORRECT ANSWER Process
Features of a process - CORRECT ANSWER Has some address space, associated with specific
resources, computational element/object, and has one or more threads of execution
When we make a _______, we add a stack frame to the call stack - CORRECT ANSWER
Procedure call
Which pointer points to the beginning of the stack frame? - CORRECT ANSWER Frame
pointer
Which pointer points to the beginning of the call stack? - CORRECT ANSWER Stack pointer
A ___________ involves a switch into kernel mode for execution - CORRECT ANSWER
System call
Invocation of a system call causes a what? - CORRECT ANSWER Kernel trap
What must be stored in a kernel trap? - CORRECT ANSWER Current address, registers, etc
What gets the address from the interrupt vector during a kernel trap? - CORRECT ANSWER
OS dispatcher
Generation of pre-OS in which there was a control room in which a human operator ran programs
(plugboards) - CORRECT ANSWER Generation 0: The operator
When was Generation 0 of OS? - CORRECT ANSWER 1940s
