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istm > Chapter 8 > Flashcards

Chapter 8 Flashcards

1
Q

Network Interface Card (NIC)

A

1 of 4 basic components or a network, its plugged into a slot on the motherboard inside the computer and allows a network cable to be plugged in so it can communicate with other computers

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2
Q

Ethernet Card

A

a common NIC, provide the computer with a unique 48 bit address called a MAC (media access control) address, means each computer on a network can be uniquely identified

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3
Q

Protocol

A

a standard language, must exist in order for the connected computers to communicate, its a convention or standard that controls or allows communication and data transfer between two computers, are governed by hardware and software

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4
Q

Ethernet Cable

A

specialized wires with adapters that plug into the NIC,

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5
Q

Twisted Pair

A

most common type of cable wire, which is a specialized wire that cancels out electromagnetic interference from other electronic devices and increase reliability

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6
Q

Network Hub

A

most common type is ethernet hub, its a central location of the computer network that serves as a traffic cop for network connection and communication, ensure that computer traffic collisions are eliminated

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7
Q

Transmission Control Protocol/ Internet Protocol (TCP/IP)

A

most common network protocol, TCP/IP checks to see the receiving computer accepts all of the packets that make up the spreadsheet and that the packets are in the correct order, guarantees reliability of the computer file received by the networks end user

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8
Q

Packets

A

are broken down files that are smaller more manageable pieces sent to the receiving computer on the computer and then reassembled in the correct order

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9
Q

User Datagram Protocol (UDP)

A

send the entire file at once in a streaming fashion, it is much faster than TCP/IP does not guarantee a files reliability

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10
Q

Operating System (OS)

A

software that administers the hardware and software of a computer allowing it to work properly , called a platform performs important jobs like controlling memory, input/output devices, and managing computer files

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11
Q

Network Operating System (NOS)

A

software that controls an entire network, responsible for network traffic control, administering packets, file management, administering certain function like backup, and security. when a new device is attached it recognizes it and installs it as part of the network

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12
Q

Topology

A

the mapping of a physical network and logical interconnections between nodes

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13
Q

Node

A

any device that is connected as part of a computer network, including computers, hubs, printers, and switches

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14
Q

Bus Topology

A

or linear bus is a network topology where each of a networks nodes is connected to a common linear backbone that has two endpoints
-laid out in a straight line but not always straight
-only use one cable or a couple

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15
Q

Advantage of Bus Topology

A
  • only involves cables and a server
  • cheap
  • easy to setup
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16
Q

Disadvantage of Bus Topology

A
  • slower because you have to wait for all the other ones to transmit
  • if cable breaks the whole network goes down
  • large businesses do not use this
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17
Q

Star Topology

A

star shape created by nodes that radiate around a central node, theres only one central device

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18
Q

Advantage of Star Topology

A
  • easy to add on to connect because you only have to connect to one device
  • easy to identify where the problem is because they all connect to the same thing
  • fast performance
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19
Q

Disadvantage of Star Topology

A
  • expensive
  • lots of cables
  • if hub goes out the entire network will go out
20
Q

Ring Topology

A

shaped like a ring, data goes in a circular manner, each computer node is connected to two other computers in the network with the first and last computers being connected to each other

21
Q

Advantage of Ring Topology

A
  • organized
    -doesn’t really need a server
22
Q

Disadvantage of Ring Topology

A

-Will struggle to identify if there is a problem because it is connected to multiple devices
-Theres one cable if it goes out everything goes out

23
Q

Mesh Topology

A

interconnected used for wireless

24
Q

Advantage of Mesh Topology

A
  • Manages on high amount of traffic
  • If one cable goes down it doesn’t matter we can fix that one
25
Q

Disadvantage of Mesh Topology

A

-Expensive
-Difficult to fix if there’s a problem

26
Q

Hybrid topology

A

Network topology that combines two or more networks topologies like ring,bus, and mesh topologies
Advantage: Reliable
Disadvantage: Hardware is expensive, Costly

27
Q

different types of computer networks

A
  1. PAN
  2. LAN
  3. MAN
  4. WAN
28
Q

Business Process

A

A series of tasks that have been written out and are to be carried out to reach an efficient goal.

29
Q

Percentage of human interference that causes network outages

A

55-60%

30
Q

percentage of network changes impact business in one way or another

A

74%

31
Q

what monitoring solutions does a network fail to catch

A

Performance
Real time alerts
Remote access
Security
Cost effectiveness
Scalability

32
Q

network

A

2 or more computers are linked/connected and can communicate with one another and share resources

33
Q

causes of network outages

A

Hardware failure, cyberattack, hacking, human error, defective software

34
Q

Local Area Network (LAN)

A

represents mays business school, relatively small, typically in a small building sometimes as small as a single room

35
Q

Campus Area Network (CAN)

A

connects two or more LAN’s that are located on a campus, organizations national headquarters, industrial complexes

36
Q

Metropolitan Area Network

A

computer network that connects two or more LANs or CANs together but within the boundaries of a town or city.

37
Q

Wide Area Network (WAN)

A
  • represents Texas or the US
    -encompass a wide geographical area and connect LANs, CANs, and MANs together
    -Many large organizations rely on WANs to centralize data and information in a main office and then having the capability to disseminate that information nationwide, or even worldwide
38
Q

Peer to Peer Networks

A

computer networks that generally connect computers directly to one another without the use of a server, common for sharing video or audio

39
Q

Firewall

A

specialized hardware and software that ensures that only authorized personnel can access and use an organization’s intranet.

40
Q

permissions

A

restrict or grant access to specific files and folders on a computer network to a user or group of users

41
Q

different physical topologies

A

Bus
Ring
Star
Mesh
Hybrid

42
Q

if you implement the incorrect topology

A

Loss of data
Security breaches
Loss of revenue

43
Q

network topology map

A

Shows how the physical network is connected, and show where everything will be

44
Q

benefits of a node

A

Connecting to the internet
Online internet collaboration

45
Q

prevent network outages

A

Making sure employees is trained
Making sure hardware is updated
Having plans to prevents this

istm (20 decks)

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