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Introduction to Computing > Week 5-6 MIDTERMS > Flashcards

Week 5-6 MIDTERMS Flashcards

1
Q

The basic foundation of a computer network is data communication, the process of exchanging data between two devices via some form of communication media.

A

Data Communication System

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2
Q

It is a piece of information to be transmitted from the sender to the destination.

A

Message

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3
Q

The device that sends the message.

A

Sender

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4
Q

The device that recieves the message

A

Receiver

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5
Q

It is the physical path by which a message travels from a sender to a receiver.

A

Transmission Medium

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6
Q

What are the 2 types of Transmission Medium

A

Guided Media (Wired Media)
Unguided Media (Wireless Media)

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7
Q

It uses a single conductor in the middle of a cable.

A

Coaxial Cable

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8
Q

What is the central conductor of a coaxial cable surrounded by an insulator called?

A

Dielectric

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9
Q

2 types of coaxial cable

A

Thicknet
Thinnet

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10
Q

It coonsist of thousands of very thin filaments of glass fiber that transmit data in the form of light waves, instead of electrical signals.

A

Fiber optic cable

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11
Q

2 types of twisted pair cable

A

Shielded Twisted pair cable
Unshielded Twisted pair cable

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12
Q

Cable wires that are twisted together

A

Unshielded Twisted pair cable

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13
Q

It has high noise comparatively

A

Unshielded Twisted pair cable

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14
Q

Grounding is not required

A

Unshielded Twisted pair cable

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15
Q

It has slow data rates

A

Unshielded Twisted pair cable

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16
Q

It’s cheaper and doesn’t require much maintenance

A

Unshielded Twisted pair cable

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17
Q

It’s a twisted cable that is enclosed in foil

A

Shielded Twisted pair cable

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18
Q

It’s less susceptible to noise and crosstalk

A

Shielded Twisted pair cable

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19
Q

Grounding is necessarily required

A

Shielded Twisted pair cable

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20
Q

It provides high data rates

A

Shielded Twisted pair cable

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21
Q

It’s moderately expensive

A

Shielded Twisted pair cable

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22
Q

Types of guided media or wired media

A

Twisted Pair Cable
Coaxial Cable
Fiber Optic Cable

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23
Q

It is wireless media that can travel for a long distance.

A

MIcrowave

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24
Q

Its data transmission is used for high volume, long distance, point-point communication.

A

Microwave

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25
moving or operating in a single direction.
Unidirectional
26
It is normally used for transmitting data for a medium distance
Radiowave
27
Data transmission through this is widely being used for short distance connection.
Infrared
28
What are the types of unguided media or wireless media
MIcrowave Radiowave Infrared
29
The set of rules and procedures governing data transmission from one layer to another is called _____________.
Protocol
30
It is a conceptual model that Characterizes and standardizes the communication functions of a telecommunication or computing system without regard to its underlying internal structure and technology.
Open System Interconnection (OSI) Model
31
What layer defines the protocol for transmitting signal over a media?
Physical Layer
32
What layer defines the protocol for transmitting data from one node to another in a computer network?
Data Link Layer
33
What layer defines the protocol for determining the correct route to ensure that data transmitted by a sender will arrive at the correct destination?
Network Layer
34
What layer defines the protocol for making sure that the correct data arrives at the destination?
Transport Layer
35
What layer defines a means for coordinating communication between a sender and a reciever?
Session Layer
36
What layer defines the way data is formatted and encoded before its transmitted?
Presentation Layer
37
What layer defines the way applications such as e-mail program interact with the data transmission system
Application Layer
38
It is a telecommunications network used for telephone calls between two or more parties.
Telephone Network
39
It has basic voice service
1st Generation or 1G
40
It's a analog-based protocol
1st Generation or1G
41
It is designed for voice
2nd Generation or 2G
42
It has improved coverage and capacity.
2nd Generation or 2G
43
It is the First Digital Standards (GSM,CDMA)
2nd Generation or 2G
44
It's designed for voice with some data consideration (multimedia, text, internet)
3rd Generation or 3G
45
It's the First Mobile Broadband
3rd Generation or 3G
46
It's designed primarily for data
4th Generation or 4G
47
It has IP-Based protocol
4th Generation or 4G
48
True mobile broadband
4th Generation or 4G
49
It is a combination of nodes that provides communication from one point on the earth to another. A node can either be a satellite, an earth station, or end-user terminal.
Satellite Network
50
What are the 3 types of satellite network?
Geo Stationary Earth Orbit (GEO) Medium Earth Orbit (MEO) Low Earth Orbit (LEO)
51
What Satellite Network is 40,000km above the equator | T.V. Signals
Geo Stationary Earth Orbit (GEO)
52
What Satellite Network is 10,000-20,000km | GPS
Medium Earth Orbit (MEO)
53
What Satellite Network is 2,000km | Telephone Communication
Low Earth Orbit (LEO)
54
It connects computers together over relatively small distances, such as within a single building or within a small group of buildings.
Local Area Network (LAN)
55
This is a network which is larger than a LAN, but smaller than an MAN.
Campus Area Network (CAN)
56
This is typical in areas such as a or small business, university, large school
Campus Area Network (CAN)
57
It is typically spread over a collection of buildings which are reasonably local to each other
Campus Area Network (CAN)
58
It may have an internal Ethernet as well as capability of connecting to the internet.
Campus Area Network (CAN)
59
This is a network which is larger than a LAN but smaller than a WAN and incorporates elements of both.
Metropolitan Area Network (MAN)
60
It typically spans a town or city and is owned by a single person or company, such as a local council or a large company
Metropolitan Area Network (MAN)
61
It can be a single network or can be established by combining a number of LANs into a larger network
Metropolitan Area Network (MAN)
62
It connects computers together over large physical distances, remotely connecting them over one huge network and allowing them to communicate even when far apart.
Wide Area Network (WAN)
63
The Internet is a _______ and connects computers all around the world together.
Wide Area Network (WAN)
64
__________ are usually too large to be controlled by one administrator, and so usually have collective ownership, or in the case of the internet, is publicly owned.
Wide Area Network (WAN)
65
This is a LAN which works using wireless network technology such as Wi-Fi (802.11b standard).
Wireless Local Area Network (WLAN)
66
It means devices do not need to rely on physical cables and wires as much and can organize their spaces more effectively
Wireless Local Area Network (WLAN)
67
This type of network is becoming more popular as wireless technology is further developed and is used more in the home and by small businesses.
Wireless Local Area Network (WLAN)
68
What are the Different types of network
Local Area Network (LAN) Campus Area Network (CAN) Metropolitan Area Network (MAN) Wide Area Network (WAN)\ Wireless Local Area Network (WLAN)
69
What are the network devices/tools
Network Interface Card Hub Bridge Swtich Routers
70
These allow computers to communicate over the network with a low-level addressing system using media access control (MAC) addresses to distinguish one computer from another.
Network Interface Card
71
A connectivity device to which network cables are attached to form a network segment. ____ typically do not filter data, but instead retransmit incoming data packets or frames to all parts
Hub
72
These connect network segments, which allows information to flow only to specific destinations
Bridge
73
These are devices that forward, make forwarding decisions and otherwise filter chunks of data communication between ports according to the MAC addresses in the packets of information
Swtich
74
These are devices that forward packets between networks by processing the information in the packet.
Routers

Introduction to Computing (8 decks)

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