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This type of network cable consist of 8 copper wires that are twisted into pairs. Data is sent through these lines in the form of electromagnetic waves. The twisting helps to reduce interference.
What is Cat5e or Cat6 cable
This port is commonly used to run web sites. It's "secured" counterpart is 443.
This type of network can provide a secure and encrypted connection over the Internet. It allows users to access and transmit data over a public network as if their devices were directly connected to a private network.
What is a VPN (Virtual Private Network)
This hardware component (or virtualized hardware component) is responsible for connecting a computer to a network.
What is a NIC
In 1983, this 32 bit number (typically written in a group of 4 numbers separated by a decimal) became the standard for communication on networks.
IPv4 Address
A logical network segment within a larger physical network used to enhance security, manageability, and performance.
what is a VLAN
This connection oriented protocol is at the core to the majority of internet communication. It has built in acknowledgement and retransmission mechanisms that make it more reliable, but more "costly" than UDP.
What is TCP (Transmission Control Protocol)
This is the phonebook of the internet. It's responsible for maintaining a list of IP address to Names and vice versa. It can be queried and if it does not know the answer, it will reach out to the next authority server in the hierarchical chain.
What is a DNS server
This network hardware component is used to connect multiple systems together and acts as a "hub" for network traffic.
What is a switch
The logical division of an IP network
What is a subnet
This is the maximum MB per second that can be transferred over a Gigabit connection
What is 128 MB
A Protocol used for the diagnostics of network traffic. "Pings" and "Traceroutes" are commonly used tools that leverage this protocol
What is ICMP (Internet Control Message Protocol)
This service automatically assigns an IP address to a device when it connects to a network. It can also provide other information such as DNS servers.
What is a DHCP server. (Dynamic Host Configuration Protocol)
A device that connects different networks together and directs data traffic between them. They determine the most efficient path for data to travel. NAT is used to map private IP's to a public IP when data is sent outside of the private network.
What is a router
These common IP address ranges are private and can only be used on local networks. They are not routable on the public internet.
10.0.0.0 - 10.255.255.255 (16,777,214 addresses)
172.16.0.0 - 172.31.255.255 (1,048,574 addresses)
192.168.0.0 - 192.168.255.255 (65,534 addresses)
The longest distance in meters you can run an ethernet line before data transmission fails.
What is 100 meters
This is the port typically utilized for encrypted FTP connections. It's also used to make SSH connections. The unsecured counterpart can be found on port 21.
What is port 22
This is a networking configuration item on routers that allows external connections to be made to internal network devices on predefined ports. It must be configured in order for you to host public facing services on the internet from a private network.
What is port forwarding
This core network component can be both software or a physical piece of hardware and is vital to securing any network. It works by testing all traffic against a set of predefined IP and/or port rules. Any traffic that fails to pass the test is blocked.
What is a firewall
This is the broadcast IP for the network 192.168.0.1 /24 and cannot be assigned to a host
What is 192.168.0.255
How old is Bob?
Stack overflow error. Undefined.
This a network protocol used for sharing files and printers between computers on a local network. It typically runs on port 445. It is predominately used in Microsoft environments however Linux can interact with it through the use of Samba.
What is SMB (Server Message Block)
This model has 7 layers and is used to break down network communication into specific tasks. It's key to understanding how network communication occurs between devices on a deeper level.
The OSI (Open Systems Interconnection) Model
This component allows traffic to flow out of one defined network and into another. It can be hardware or software.
What is a gateway
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This Network contains 1022 routable address
What is a /22 OR 255.255.252.0