Comp Sci Exam

Question 1

Name All Steps From The Fetch Exceute Cycle

Answer 1

1. Fetch instructions from main memory.
2. Decode instructions
3. Execute Commands
4. Store Results

Question 2

What is the CoC

Answer 2

Set of rules outlining responsibilies or proper practices of and ind/party/org

Question 3

What are the three busses

Answer 3

Control Bus: Manages information flow between components
Address Bus: determines the location in memory that the processor will read data from or write to
Data Bus: Operates only within the internal circuitry of the CPU, communicating among internal caches

Question 4

What is the ALU

Answer 4

Performs both bitwise and mathematical operations on binary numbers

Question 5

What does the control unit do

Answer 5

Directs operation of processor, receives input information that it converts into control signals before sending to central processor, this then tells hardware operations to carry out

Question 6

What does a register do

Answer 6

May hold any type of data, must be large enough to hold instruction (eg. 64 bit = 64 length) , typical cpu’s hold multiple index registers or address registers

Question 7

What does a program counter do

Answer 7

register in a computer that contains address of the instruction being executed, as each instruction fetched adds 1 to stored value.

Question 8

What does a system clock do

Answer 8

Handles all synchronization within a computer

Question 9

What is the BIOS bootup process

Answer 9

CPU initializes itself
Power-On Self-Test (POST)
necessary hardware is detected and found, computer begins to boot
BIOS attempts to access the first sector of the drive designated as the boot disk
BIOS confirms there’s a bootstrap loader
BIOS hands over its work to the boot loader
turns control of the PC over to the operating system

Question 10

What is the SDLC

Answer 10

The system development life-cycle

Question 11

What are the 6 SDLC Steps

Answer 11

Preliminary Analysis, Analysis, Design, Development, Implementation, Evaluation and Maintenance

Question 12

What happens in the preliminary analysis stage

Answer 12

Conduction, proposition of alternative solutions, costs and benefits

Question 13

What happens in the analysis stage

Answer 13

Collection of facts, scrutiny of existing systems, Analysis of proposed solutions

Question 14

What happens in the design stage

Answer 14

Describes necessary features, specs and functions of the project in detail as well as hard/software.

Question 15

What happens in the development stage

Answer 15

When the qualification specific people begin their work and initial stages of design and analysis end

Question 16

What happens in the implementation stage

Answer 16

Majority of code is written, system is implemented

Question 17

What happens in the Evaluation and Maintenance stage

Answer 17

Consists of regular updates, maintenance and the evaluation of the system

Question 18

What does the SDLC do

Answer 18

Enables users to develop a newly developed project into a planned one.

Question 19

What does prototyping do

Answer 19

a prototype is built, tested, and then reworked as necessary until an acceptable prototype is finally achieved, works best where not all project requirements are now ahead of time

Question 20

What are the 4 aspects of Project Management?

Answer 20

Planning, Budgeting, Project Management Tracking, Scheduling

Question 21

Describe the 2 types of budgeting

Answer 21

Top-down: Top-down decides for how much the project will cost and dividing the amount between the work packages
Bottum-up: Bottom-up estimates the total cost of the project by costing the lowest-level work packages and rolling up

Question 22

What is an advantage and disadvantage of Top-Down

Answer 22

advantages include less resource waste and greater work efficiency due to limited amount
disadvantage includes that it guesses the manager knows a reasonable figure

Question 23

What is an advantage and disadvantage of Bottums-up budgeting

Answer 23

an advantage of this is its accuracy

disadvantage includes is difficulty in getting a full list of tasks and activities

Question 24

What is the difference between direct and indirect costs

Answer 24

Direct: easily attributed to the project and charge on an item-by-item basis
Indirect: Costs that affect more then 1 project

Question 25

What is Scheduling

Answer 25

Tool that communicates what work needs to be performed, what resources are required to be organized for work and the timeframes in which the work needs to be performed

Question 26

What is Project Management Tracking

Answer 26

Ways Project managers update stakeholders and executives on upcoming

Question 27

What are the five steps to communication

Answer 27

Step 1: Explain project plan to key stakeholders and discuss key components
-A set of living documents expected to change over the life of a project
Baselines: Sometimes called performance Measures, projects and approved starting pints for scope, schedule and cost. Used to determine where project is on time.
Baseline Management Plans: Documentation on how variances are included
Step 2: Define Roles and Responsibilities
-Identifying stakeholders, important for project manager to know whos working on what
Step 3: Develop a scope statement
-basis of getting agreement from sponsors & stakeholders, reduces miscommunication
-Includes; business need/problem, project objectives, benefits of project completion, project scope, key milestones
Step 4: Develop the Project Baselines
-Includes all deliverables on project, and therefore all work that needs to be done
1. Identity activities and tasks needed to produce each of deliverables previously identified, 2. Identify resources for each task, 3. Estimate how many hours of work it takes to complete each task, 4. Estimate cost, 5. Consider resource constraints, 6. Determine dependent tasks, 7. Develop Schedule
Step 5: Communication

Question 28

Purpose of an SOE

Answer 28

a specific computer operating system and collection of software that an IT department defines as a standard build

Question 29

3 Advantages of an SOE

Answer 29

Easier to update, cuts down on costs due to bulk, Imaging shortens process time

Question 30

Disadvantages of an SOE

Answer 30

Software specialists are sometimes unavailable, network specialist may need to be hired, may take time to adjust to specific operating system