WIP - Network+

A vendor neutral networking certification that validates essential knowledge and skills in designing, configuring, managing, and troubleshooting wired and wireless devices.

The process of recording and organizing information about a network, including its configuration, devices, and connections.

Guidelines and protocols that define how network devices communicate and interact with each other.

Measures and practices implemented to protect a network from unauthorized access, data breaches, and other security threats.

Technologies and services that enable the storage, management, and access of data and applications over the internet.

The process of creating virtual instances or environments of computer resources, such as servers, operating systems, or networks.

The basic principles, concepts, and components of computer networks.

The process of configuring and setting up network devices and infrastructure to create a functional network.

The ongoing management and maintenance of a network, including monitoring, troubleshooting, and optimizing its performance.

The process of identifying and resolving issues or problems in a network to ensure its proper functioning.

The data and information that flows through a network, such as file sharing, video chatting, web surfing, and email communication.

A device used by an end-user to access and connect to a network, such as a workstation, laptop, tablet, smartphone, or television.

A device that provides resources and services to other devices on a network, such as email, web, file, chat, or print servers.

An older technology used to connect networked devices, but leads to increased network errors and broadcasts information to all other ports.

A device that allows wireless devices to connect to a wired network and acts as a wireless hub.

A device that connects networked devices and forwards traffic based on the device's MAC address, providing more security and efficient bandwidth usage.

A device that connects different networks together and intelligently forwards traffic based on logical addresses, such as IP addresses.

The physical medium used to connect devices or ports, such as copper cable, fiber optic cable, or wireless radio frequency waves.

A physical connection that connects networks together, such as leased lines, DSL, cable, fiber optic, satellite, or cellular connections.

A network model where a dedicated server provides access to resources, such as files, printers, and scanners, to client devices.

A network model where peers (PCs) directly share resources, such as files and printers, with each other without the need for dedicated servers.

The smallest type of wired or wireless network that covers a limited area, such as connecting a cellphone to a car or a USB hard drive to a laptop.

A network that connects components within a limited distance, such as a building or office, using Ethernet or WiFi networks.

A network that connects building-centric LANs across a university, industrial park, or business park, covering many square miles and buildings.

A network that connects scattered locations across a city, larger than a CAN but smaller than a WAN, covering up to a 25-mile radius.

A network that connects geographically disparate internal networks, covering distances around the country or world, using leased lines or VPNs.

A network topology where devices are connected to a cable running through the area, forming a single collision domain.

A network topology where devices are connected in a circular loop, with data traveling in a singular direction.

The most popular physical LAN topology where devices connect to a central point, commonly used with Ethernet cabling.

A topology used for connecting multiple sites, similar to a star topology but with WAN links instead of LAN connections.

The most redundant network topology where every device is connected to every other device, providing multiple paths for data transmission.

Every node connects to every other node.

Always available in a full-mesh topology.

A hybrid of full-mesh and hub-and-spoke topologies that provides optimal routes between some sites while avoiding the expense of connecting every site.

Infrastructure Mode:The most common type of wireless network that requires centralized management and uses a wireless access point as a centralized point like a star topology.

Ad Hoc Mode:A decentralized wireless network that does not require routers or access points and allows for dynamic forwarding decisions for data on the network.

Interconnection of different types of nodes or devices that consists of clients, routers, and gateways and utilizes different radio frequencies to extend and expand access.

802.11, Bluetooth, RFID, NFC, Infrared (IR), Z-Wave, Ant+.

A reference model consisting of 7 layers developed by the International Organization for Standardization (ISO) to categorize functions of a network and compare technologies across different manufacturers.

The Physical Layer responsible for the transmission of bits across the network and the physical and electrical characteristics of the network.

The layer that determines how bits are represented on the medium, wiring standards for connectors and jacks, physical topology, synchronizing bits, bandwidth usage, and multiplexing strategy.

Each session takes turns, using time slots, to share the medium between all users.

A more efficient version of TDM that dynamically allocates time slots on an as-needed basis instead of statically assigning.

The medium is divided into various channels based on frequencies, and each session is transmitted over a different channel.

The layer responsible for packaging data into frames, performing error detection/correction, and uniquely identifying network devices with a MAC address.

Provides connection services, synchronizes transmissions, and includes Media Access Control (MAC) and Logical Link Control (LLC).

The physical addressing of devices using a 48-bit address assigned to a network interface card (NIC) by the manufacturer.

Provides connection services, acknowledgment of receipt of a message, flow control, and error control.

The layer responsible for forwarding traffic (routing) with logical addressing, such as IP addresses, and includes logical addressing, switching, route discovery and selection, connection services, bandwidth usage, and multiplexing strategy.

The IP address (IPv4 or IPv6) used for logical addressing in the network layer.

Data forwarding method where data is divided into packets and forwarded.

Data forwarding method where a dedicated communication link is established between two devices.

Data forwarding method where data is divided into messages and may be stored before forwarding.

Process of forwarding data packets based on destination IP address.

Maintained by routers to determine how to forward packets based on destination IP address.

Manually configured route in a routing table.

Route dynamically learned through a routing protocol.

Routing Information Protocol, a routing protocol.

Open Shortest Path First, a routing protocol.

Enhanced Interior Gateway Routing Protocol, a routing protocol.

Layer 3 services that improve reliability by augmenting Layer 2.

Prevents the sender from sending data faster than the receiver can handle.

Allows packets to be sent over multiple links and routes for faster service.

Internet Control Message Protocol, used for sending error messages and operational information about an IP destination.

Routers, multilayer switches, IPv4 protocol, IPv6 protocol, ICMP.

Layer 4 of the OSI model.

Data units sent at the Transport Layer.

Transmission Control Protocol, a connection-oriented and reliable transport protocol.

User Datagram Protocol, a connectionless and unreliable transport protocol.

Allows clients to adjust the amount of data sent in each segment.

Allocating memory to store segments if bandwidth is not readily available.

TCP, UDP.

Layer 5 of the OSI model responsible for setting up, maintaining, and tearing down sessions.

Process of checking credentials, assigning session numbers, negotiating session services, and determining the data sender.

Transferring data, reestablishing disconnected sessions, and acknowledging receipt of data.

Ending a session due to mutual agreement or party disconnection.

H.323, NetBIOS.

Layer 6 of the OSI model responsible for formatting data and providing encryption.

Ensuring compatibility and readability of data between devices.

Scrambling data to provide confidentiality and secure transmission.

HTML, XML, PHP, JavaScript.

Layer 7 of the OSI model providing application-level services and service advertisement.

Uniting components from multiple network applications.

Announcing services offered on the network.

E-mail (POP3, IMAP, SMTP), web browsing (HTTP, HTTPS), DNS, FTP, remote access (TELNET, SSH), SNMP.

Process of adding headers and sometimes trailers around data.

Process of removing the encapsulation applied to data.

Single unit of information transmitted within a computer network at different layers.

Used to synchronize the connection during the three-way handshake in TCP communications.

Used to acknowledge the successful receipt of packets during communication.

Used to tear down virtual connections created using the three-way handshake.

Used when a client or server receives an unexpected packet during the current connection.

Used to prioritize and process data immediately at the sending or receiving ends.

Used to identify incoming data as "urgent" and process it immediately.

Dictate the source and destination of data in TCP and UDP.

Indicates the number of bytes in a UDP packet, including the header and data.

Optional field used to provide validation for the integrity of UDP data.

Physical address used to identify a network card on a local area network.

Indicates the protocol encapsulated in the payload of a frame.

The process of adding headers and trailers to data as it moves from higher layers to lower layers in the OSI model.