Networking Overview Flashcards
What is the role of host devices in a peer-to-peer network?
In a peer-to-peer network, each host can provide network resources to other hosts or access resources located on other hosts, and each host is in charge of controlling access to those resources. In a client/server network, hosts have specific roles.
What benefits does implementing a network provide to an organization?
Networks facilitate efficient collaboration between employees, better use of resources, centralized administration and centralized backups. Network implementations are not easy nor are they inexpensive, but the productivity, security and stability benefits are enough to justify moving ahead.
How do you determine which portion of a IPv4 address is the network ID and the host ID?
The first part of an IP address is used as a network address, the last part as a host address. If you take the example 192.168.123.132 and divide it into these two parts, you get 192.168.123. Network .132 Host or 192.168.123.0 - network address. 0.0.0.132 - host address.
What type of network is created when you pair wireless earbuds to a cell phone?
-Bluetooth network
Devices connected in a Bluetooth network communicate with each other using ultra-high frequency (UHF) radio waves. These are electromagnetic waves with frequencies around 2.4 gigahertz (2.4 billion waves per second).
Which device connects multiple networks together?
-router
In addition to connecting multiple networks together, the router also allows networked devices and multiple users to access the Internet. Ultimately, a router works as a dispatcher, directing traffic and choosing the most efficient route for information, in the form of data packets, to travel across a network.
Network
A group of interconnected computers and devices that can share information information with each other
If two companies connect their internal networks to share data, you could call it one network. However, it is two networks, because each network is managed by a different company.
Subnet
A portion of a network with a common network address.
Nodes or hosts
Devices that reside on the network. Hosts can range from a computer, tablet, mobile phone, gaming console, IoT device, or server.
Transmission media
The medium that is used to carry electrical or radio signals between connected network hosts.
Network Interfaces
Converts the digital network data into a signal that can be transmitted along the transmission medium.
Protocols
Rules or standards that describe how hosts communicates and exchange data.
Peer-to-peer
Network in which hosts can both share and access data.
Client-server
Network in which hosts have specific roles.
Storage Attached Network (SAN)
A special type of network that provides high-speed access to storage across the network. Specialized hardware is used to store and provide access to needed data.
Body Area Network (BAN)
A very small network that consists of wearable or implanted devices such as a smart watch, fitness trackers, or medical implants.
Personal Area Network (PAN)
A small network for communication between personal devices such as wireless earbuds and a cell phone.
For example, a PAN may include a pair of wireless earbuds and a smartphone. A PAN is limited to a few feet in range. A PAN is typically created using Bluetooth wireless technologies.
Local Area Network (LAN)
A network in a small geographic area, like an office. A LAN typically uses wires to connect systems together.
Wireless Local Area Network (WLAN)
Same as LAN but uses wireless connection.
Campus Area Network (CAN)
Sometimes referred to as a corporate area network, this network type is established when multiple LANs are connected together within a limited area, such as a college campus or between multiple buildings that are owned by the same organization.
Metropolitan Area Network (MAN)
A network that covers an area as small as a few city blocks to as large as an entire metropolitan city.
Be aware that many IT professionals do not differentiate between a wide area network and a MAN, because both use most of the same network technologies.
Wide Area Network (WAN)
Group of LANs that are geographically isolated but are connected to form a large internetwork.
Wireless Mesh Network (WMN)
A group of wireless mesh nodes that communicate with one another to share the network connection across a large area. Each device in the WMN uses the others as relays to avoid the need for infrastructure.
WMNs provide the ability to stream voice, data, and video between arbitrary pairs of devices. Each device in the WMN uses the other devices in the WMN as relays to avoid the need for infrastructure.
Wireless Wide Area Network (WWAN)
Similar to WLAN but uses different technology to connect to the internet. Also known as 4G, 5G, or LTE networks.
Internetwork
A network with geographically disperse connections that connect multiple LANs.
Additionally, connecting two networks under different management is a form of internetworking because data must travel between two networks.
Internet
Large, world-wide, public network.
The network is public because virtually anyone can connect to it. Users or organizations make services freely available on the internet.
Users and organizations connect to the internet through an internet service provider (ISP).
The internet uses a set of communication protocols (TCP/IP) for providing services.
Individuals and organizations can make services (such as a website) available to other users on the internet.
Intranet
Private network that uses internet technologies.
Services on an intranet are available only to hosts that are connected to the private network.
For example, a company might have a website that only employees can access.
Extranet
Private network that uses internet technologies but its resources are made available to trusted external users.
For example, you might create a website on a private network that only users from a partner company can access.
Devices
can include a computer, tablet, mobile phone, gaming console, IoT device, and server. The devices are typically referred to as network nodes or hosts.
