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Computer Networks (Study Guide)

69 flashcardsby Sg
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1
What came first, the Internet or the WWW?
The Internet
2
What does WWW stand for?
World Wide Web
3
When was the WWW invented?
1989-1991
4
Where was the WWW invented?
In Switzerland
5
What's the relationship between the WWW and the Internet?
The WWW is a part of the Internet
6
When was the Internet formed?
1968-1970
7
What is the Internet?
An infrastructure
8
It’s an arrangement of nodes that’s connected through wireless or wired links, allowing for data transmission and communication.
Computer Network
9
It’s a device that forwards the internet connection from the modem to the devices connected to it. It moves data between networks.
Router
10
It’s a device that allows you to connect to the internet through an ISP.
Modem
11
It’s a device that’s connected to or can connect to a network.
Nodes
12
It’s an expansion card that’s needed by all devices to connect to the internet.
NIC
13
NIC stands for...
Network Interface Card
14
It’s a network structure where every node is connected through one connection with two endpoints.
Bus
15
It’s a network structure where every node is connected through a circle.
Ring
16
It’s a network structure where every node is connected to a main host computer or server.
Star
17
It’s a network structure where every node is interconnected with each other.
Mesh
18
LAN stands for...
Local Area Network
19
a type of network that has a range of a campus or building.
LAN
20
MAN stands for...
Metropolitan Area Network
21
a public and fast type of network with the range of a town or city. It covers about 50 miles.
MAN
22
WAN stands for...
Wide Area Network
23
a type of network that has a range of a large geographical area such as a state or country.
WAN
24
PAN stands for...
Personal Area Network
25
a type of network that covers the range of a few feet.
PAN
26
FTP stands for...
File Transfer Protocol
27
a data transfer protocol used to move files from one device to across the network.
FTP
28
TCP stands for...
Transmission Control Protocol
29
IP stands for...
Internet Protocol
30
HTTP stands for...
Hypertext transfer protocol
31
SMTP stands for...
Simple Mail Transfer Protocol
32
A network structure that combines other network structures
Tree
33
TCP ________ while UDP doesn't.
resends packets in case of failure
34
UDP is _________ than TCP.
faster
35
UDP stands for...
User Datagram Protocol
36
DOS stands for...
Denail of Service
37
DDOS stands for...
Distributed Denial of Service
38
a cyber attack in which a server, system, website or network is left unusable
DOS
39
a cyber attack in which multiple servers, systems, websites or networks are left unusable due it being flooded with internet traffic ransomware
DDOS
40
It’s a piece of data that includes a sender’s address.
Packets
41
It’s a channel that’s made to last until data transmission is done and requires both parties to be present.
Circuit switching
42
It’s when data is split up into packets and sent to their destination where they’re reassembled.
Packet switching
43
It’s the transfer of data at different moments of time.
Asynchronous Transmission
44
It’s the transfer of data between the recipient and sender at the same time.
Synchronous Transmission
45
BPS stands for...
bits per second
46
It’s how much data can be held and transmitted at a given time.
Bandwidth
47
It’s the amount of time needed for a packet to go from one place to another.
Latency
48
It’s a peer-to-peer network type that uses a communication protocol between nodes.
Ethernet
49
It’s a type of network in which all nodes are equal. It’s more useful in smaller networks and is easier to set up.
Peer-To-Peer Network
50
It’s a type of network in which all the nodes are connected to one host device or server.
Client-Server Network
51
It’s a peer-to-peer network in which radio waves are used and IEEE standards are followed.
Wireless Networks
52
It’s a type of connection that allows you to connect multiple devices in a small range.
Bluetooth
53
t’s a type of communication in which one physical medium can hold and manage multiple channels at the same time.
Broadband
54
DSL stands for...
Digital Subscriber Line
55
a piece of technology used for quick network or internet access over phone lines
DSL
56
Same as DSL but if it ran through cables lines and was faster
Cable
57
It’s the method in which an image is embedded into another picture. It’s different from encryption.
Steganography
58
It’s data that’s collected from data
Metadata
59
It’s a digital remnant that’s left behind with your knowledge when you access the web.
Digital Footprints
60
It’s a digital remnant that’s left behind without your knowledge when you access the web.
Digital Fingerprints
61
What are the benefits of having a network?
It allows you to more easily share data, hardware and peripherals, reducing cost.
62
What's the difference between LAN, MAN, and WAN?
A LAN covers the range of a building, while a MAN covers the range of a city and a WAN covers the range of a state or country
63
What is the process of packet switching in transferring data?
Data is split up into small packets which are labeled with the correct order and destination address. The data is then sent and reassembled at the destination. A special packet is sent back to the source after transmission to confirm that the data was sent correctly. If too much time passes and that packet is never sent, the original data transmission is resent.
64
What are the components of a wireless network?
Computer -> router -> modem -> ISP -> Internet
65
invisible elements that make your computer communicate with another source with the intent of tracking your activities.
web bugs
66
What are the default privacy settings for Venmo?(BTB)
payment transactions and memos are public
67
It’s when an ad looks through your activities and repeatedly tries to advertise to you whatever product or service you may have been looking at before in hopes of getting you to buy it.
retargeting
68
Compare and contrast peer-to-peer networks with client-server networks.
In peer-to-peer networks, all devices are equal and share the same amount of authority while in client-server networks, all the devices are connected to one client-server that manages everything.
69
A school with 20 stand-alone PCs is considering networking them together and adding a file server. Give three possible benefits of doing this.
It allows for files to be accessed and transferred regardless of what PC was being used and for devices like printers or scanners to be shared in between PCs.
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