VPNs
What does VPN stand for?
Virtual Private Network
Name 3 types of networks
LAN, WAN, VLAN, SAN, WLAN
A set of rules for data communication over a network.
What is fire wall?
a firewall is a security device that monitors and controls network traffic between the network and the internet.
What is data?
Anything in a form suitable for use with a computer… such as binary. Typically data is meaningless.
What is another term for "remote working"
Telecommuting
What is a network model in which computers or hardware devices exchange files?
P2P (Peer-to-Peer)
What is the difference between lossy and lossless compression?
Lossless doesn't lose any data (typically used for text) and lossy loses some data (typically used for images and audio files)
What is an advantage of encryption?
1. provides a high level security by encoding the data so that it can only be read by authorized users.
2. supports various methods such as WEP, WPA, and WPA2
3. easy to implement.
What is a packet?
A small unit of data used in network communication.
What does a VPN secure your network from?
Hackers, Government, Corporate
How many layers are in the OSI model?
7
What is one reason fiber-optic cables would be preferred over radio waves for network transmission?
More secure, Faster
Name 2 hardware components in a wireless network
1. Wireless Access Points
2. Network interface Cards
3. Routers
4. Switches
What does the payload contain?
The payload contains the physical data (binary)
What does a VPN do to a network connection?
Encryption
What can you do to a file to reduce its size before sending it over a network?
Compress it
Explain two reasons for why the speed of data transmissions across a network can vary.
Traffic, Time of Day, Distance, Infrastructure
Name 2 software components in a wireless network
1. Operating Systems
2. Network protocols
3. Wireless network management software
4. network security software
What does the header contain?
The header is a collection of information about the packet, such as the source and destination addresses, sequence number, and packet type.
What are two fundamental VPN technologies?
Encryption and Tunneling
What are the four steps of the Simplified TCP model?
Application, Transmission, Network, Link
What is the most preferred network type to implement a home network?
Wi-Fi
What is 3 factor authentification?
something you are
What is the definition of Packet Switching?
Packet-switching describes the type of network in which relatively small units of data called packets are routed through a network based on the destination address contained within each packet.