Wgu C182 Information Technology

Front 1

Responsibility of system administrator?

Back 1

Account mang., password mang., system level programming, train new employees in systems. File protection, data backup, security for FW and log files

Front 2

Responsibility of network administrator?

Back 2

(All aspects of computer network) laying cable, make connections, work with broadcast devices, install software and edit files that deal with network

Front 3

Responsibility of database administrator?

Back 3

Design, development and support of (DBMS)

Front 4

Define a Information system?

Back 4

Logs of info that is critical to the business, whether electronically or store via paper files

Front 5

5 variables for quality of data?

Back 5

-relevance -accurate

-timely -reliable

-thorough

Front 6

Explain how (IPOS) system works?

Back 6

-input (Raw data is entered by user)

-Processing (organizes data and structures it for usefulness)

-output (information output so inserts can see results)

-storage (info stored for perm. Record)

Front 7

Peripheral devices?

Back 7

Keyboard

Printer

Monitor

Front 8

Main components of a computer?

Back 8

CPU, memory and storage, and peripheral devices

Front 9

Functions of a CPU?

Back 9

Executes programs instructions, commands the various components in a computer

Front 10

What does memory do?

Back 10

Stores programs being executed and the data each program is using

Temporarily stores

Front 11

Storage?

Back 11

Long term storage devices

(Disk drives, tape, cd, flash drive)

Front 12

What does a BUS do?

Back 12

Permits info to move between each component using electronic current

Front 13

To components of CPU and what they do?

Back 13

CU-control unit: retrieves raw data from user input system

ALU- arithmetic logic unit: receives instructions and data from CU

Front 14

Is RAM short term or long term memory?

Back 14

Short term

Front 15

What are the 5 main forms of memory?

Back 15

RAM, DRAM(main memory), SRAM(cache memory or register), ROM, bios Rom(usually stores in rom chip in motherboard)

Front 16

What is ROM?

Back 16

Read only memory(long term memory)

Front 17

Deference between compiler and interpreter?

Back 17

Complied- require the whole code be finish before compilation and is non-portable.

Interpreter- allows programmers to test out one instruction at a time

Front 18

What started to be used in the 3rd generation and was needed for integrated circuits?

Back 18

Silicon chips

Front 19

What high level language introduced the concept of object-oriented programming?

Back 19

Small talk

Front 20

Local computer?

Back 20

A computer with which I user is physically at and operating

Front 21

Local computer?

Back 21

A computer with which I user is physically at and operating

Front 22

Remote computer?

Back 22

A computer that is remotely accessed threw ssh

Front 23

Types of media?

Back 23

UTP, coaxial but use electric current and fiber which uses light pulses

Front 24

Broadcast devices?

Back 24

Switches, hubs, routers, WAP

Front 25

Router?

Back 25

Separates networks and send packets to respective networks. Form of routing depends on packet or circuit switched

Front 26

Packet-switched?

Back 26

Message pathway is only established as it is sent.( most computer networks)

Front 27

SQL injection?

Back 27

Command added to web server as part of the URL

Front 28

Two most common network security software, that are part of a mitigation technique?

Back 28

Firewalls and Amir-viral software

Front 29

Difference between a firewall and anti-viral software?

Back 29

Firewall prevents things that don't have access from coming in or leaving the network.

Anti-viral software- seeks out malware

Front 30

Methods of encryption?

Back 30

Symmetric key encryption- uses same key

Public key encryption-uses a public and a private key

Front 31

Application software?

Back 31

Software used by end users to accomplish task

Front 32

Productivity software?

Back 32

Everyone uses things like Wordpress

Front 33

System software?

Back 33

Consists of programs that make up an operating system and may run in the background

Front 34

Intranet?

Back 34

LAN that uses internet protocol

Front 35

Layers of a computer system?

Back 35

User

1Applications

Operating ------Os utilities

System ------Service.

Components ------Shells

------Os kernel

------Software device 7drivers

8ROM Bios drivers

9Hardware

Front 36

Kernel?

Back 36

Sits on top of hardware is the interface between hardware and software

Front 37

Circuit-switched?

Back 37

Message pathway is always established. ( usually with cellphone towers)

Front 38

Device drivers?

Back 38

Provide specific interfaces between os running a computer and hardware

Front 39

Shell?

Back 39

Provides access to the kernel

Front 40

Services or Daemons?

Back 40

Os program that runs in the background

Front 41

Utility programs?

Back 41

Defrag, scan files

Front 42

Server software?

Back 42

Example would be web server file server ftp server

Front 43

File server?

Back 43

Used to store files and software to run on network

Front 44

Network servers?

Back 44

Usually stand alone high performance computers with large disk drives (like you see in the movies)

Front 45

Web server?

Back 45

Responds to client request anywhere in the network

Front 46

File server?

Back 46

Responds to request over LAN

Front 47

4 main network topologies?

Back 47

Bus

Star

Mesh

Ring

Front 48

What protocol most a host run to communicate over the Internet?

Back 48

TCP/IP

Other protocols that layer over "IP" are ICMP UDP

Front 49

What does a DNS do?

Back 49

Translate alias to actual IP address

Front 50

Three goals of (IAS) information assurance security?

Back 50

C.I.A

Confidentiality, integrity, availability

Front 51

1st Step in risk management?

Back 51

1.identify organizations info assists

Front 52

DIKW?

Back 52

Data, information, knowledge, wisdom

Front 53

SWITCH?

Back 53

Records and Recognizes local network addresses(MAC) of all computers connected to it

Front 54

which generation did computers begin to see a widespread use in business?

Back 54

3rd generation

Front 55

HUB?

Back 55

connects multiple computers together

Front 56

MVC?

Back 56

model view controller

Front 57

Controler layer?

Back 57

interacts with user

Front 58

view layer?

Back 58

the actual user interface

Front 59

define cloud computing?

Back 59

allows for the offloading of computation and storage from local computer. usually third party

Front 60

proprietary software license?

Back 60

purchased from vendor and gives you the right to use the software but is not yours to own.

Front 61

in a client-server network, what is the role of the server?

Back 61

take request from the client and send back requested infromation.

Front 62

best description of the internet?

Back 62

global network of networks

Front 63

device drivers?

Back 63

provide specific interfaces between the os running a computer and hardware.

Front 64

presentation tier?

Back 64

web application that users interacts with.

Front 65

name the parts of a url?

Back 65

host name, tld, protocol

Front 66

hierarchical database?

Back 66

parent child, tree like module 0

^

00

Front 67

model layer?

Back 67

business logic is designed

Front 68

relational database?

Back 68

most common, multiple tables with interrelated fields

Front 69

scriptin languages?

Back 69

java script, asp,jsp,php,perl,tcl,python

Front 70

flat file?

Back 70

used when amount of data recorded is minimal

example:spreadsheet

Front 71

scope creep?

Back 71

add ons after a project start that impacts(time and capital)

Front 72

four project phases?

Back 72

initation, planning, executing/controlling, closing

Front 73

logic tier?

Back 73

sits between user interface, query of # of items and price

Front 74

OLAP?

Back 74

uses details of data to find what info users want. takes from warehouse makes it eaiser to shift threw

Front 75

high level programming languages?

Back 75

basic, c, c++, cobol, fortran, ada, pascal

Front 76

OLDP?

Back 76

processes data in real time