Network Models
a small network where each computer's OS controls access to their own resources
Peer to Peer
This topology is outdated because it only connects to 2 other people in the LAN - its neighbors.
ring topology
This layer adds a header with the IP address.
network layer
Internet Protocol
Use correct tools for the job, and only when ________.
trained
a larger network where a NOS controls access to the resources
Client Server
This topology looks like a snowflake because all nodes connect to each other.
star topology
This layer is responsible for reformatting, compressing, and/or encrypting.
presentation layer
Which is more secure? HTTP or SSL?
SSL (Secure Sockets Layer)
Name 3 of the rules for lifting.
balance the load, stand close with feet apart, back straight, knees bent, lift with legs/arms/shoulders and not back or stomach, keep load close to your body
This network has the advantage of being scalable.
Client Server
This topology has a switch in the middle and all nodes connect to the switch.
star topology
This layer uses either the TCP protocol or the UDP protocol to get payloads from one app to another.
transport layer
Name one of the protocols used when sending email.
SMTP, POP3, or IMAP4
only when absolutely necessary because improper shutdowns are hard on computers and data
This network has the advantage of being simple to configure.
Peer to Peer
This topology has a backbone and multiple star LANs connect to the backbone.
star-bus topology
This layer adds both a header and a trailer.
data link layer
What is Telnet Service, and who uses it?
a "remote in" service that administrators use
Personal Protective Equipment
Explain the difference between a node and a host, and how a computer can be both?
The node is ANY computer on the network, and it can also be a host if it's a computer that hosts resources such as applications and data.
Explain the difference between star topology and star bus topology.
star bus has multiple switches and star has only one
What is encapsulation?
adding a header
What is ARP used for?
finding the best route when transferring data over a network
fail open - access allowed for safety
fail close - access denied for security