ITGSS-CERTIFIED ADVANCED PROFESSIONAL;
SECURITY ENGINEER EXAM QUESTIONS AND
ANSWERS
Architecture Description - ANSWER A formal description and
representation of a system, the components, and the relationship to the
environment
Architecture Description - ANSWER A tool used to conceptually
understand the structure and behavior of a complex entity through
different views
ISO/IEC 42010:2007 - ANSWER "Recommended Practice for
Architectural Description of Software-Intensive Systems" International
standard on how system architecture takes place
Computer Architecture - ANSWER encompaces all of the parts of a
computer system that are necessary for it to function
Central Process Unit - ANSWER CPU - Brains of the computer
Aritmetic Logic Unit - ANSWER Component of the CPU that carries out
logic and mathematical functions as they are laid out in the programming
code being processed by the CPU.
Control Unit - ANSWER Manages and synchronizes the sysem while
different applications' code and operation instructions are being
executed
Gernal Reigsters - ANSWER Temporary memory location the CPU
uses during its processes of executing instructions. The ALU's "scratch
pad" it uses while carrying out logic and math functions.
Special Registers - ANSWER Temporary memory location that holds
critical processing parameters. They hold values as in the program
counter, stack pointer, and program status word.
,Program Counter - ANSWER Register contains the memory address of
the next instruction to be fetched
Stack - ANSWER Memory segment and used by procss to
communicate instructions and data to each other
Program Status Word - ANSWER Condition variable that indicates to
the CPU what mode (kernel or user) instructions need to be carried out
in.
User Mode - ANSWER (Problem State) Protection mode that ta CPU
works witin when carrying out less trusted process instructions
Kernel Mode - ANSWER (Supervisory State, privlege mode) Mode that
a CPU works witin when carrying out more trusted proces instruction.
The process has access to more computer resources when working in
kernel versus user mode
address bus - ANSWER Physical connections between processing
components and memory segments used to communicate the physical
memory addresses being used during processing procedures.
data bus - ANSWER Physical connections between processing
components and memory segments used to transmit data being used
during processing procedures.
symmetirc mode - ANSWER When a computer has two or more CPUs
and each CPU is being used in a load-balancing method.
asymmetric mode - ANSWER "When a computer has two or more
CPUs and one CPU is dedicated to a specific program while the other
CPUs carry out general processing procedures."
Process - ANSWER Program loaded in memory within an operating
system
mulitprogramming - ANSWER Interleaved execution of more than one
program (process) or task by a single operating system
, Multitasking - ANSWER Simmultaneous execution of more than one
program (process) or task by a single operating system
Cooperative multitasking - ANSWER Multitasking scheduling scheme
used by older operating systems to allow for computer resource time
slicing. Processes had to much control over resources which would
alllow the programs or systems to "hang".
Preemptive multitasking - ANSWER Multitasking scheduling schem
used by operating sysems to allow for computer resource time slicing.
used in newer, more stable operating systems
Process states - ANSWER (ready, running, blocked) Processes can be
in various activity levels. Ready = waiting for input. Running =
instructions being executed by CPU. Blocked = process is "suspended"
Interrupts - ANSWER Valudes assigned to computer components
(hardware and softwware) to allow for efficient computer resource time
slicing
Maskable Interrupt - ANSWER Interrupt value assigned to noncritical
operating system activity
Nonmaksable interrupt - ANSWER Interrupt value assigned to a critical
opeating system activity
Thread - ANSWER Instructions set generated by a process when it has
a specific activity that needs to be carried out by and operating system.
When the activity is finished the thread is destroyed
Multithreading - ANSWER Applications that can carry out multiple
activities simultaneously by generating different instrutions sets (threads)
Software deadlock - ANSWER Two processes cannot complete their
activities becauuse they are both waiting for system resources to be
released
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