Network + 2.1

Software-defined wide area network(SDWAN)

A WAN that uses software to control connectivity.

Subnet address

The portion of the IP address that identifies the network the device is assigned to.

Topology

The term used to describe how devices are connected and how messages flow from device to device. The physical topology describes the way the network is wired. The logical topology describes the way messages are sent.

Metropolitan area network (MAN)

Which of the following geographic network types is typically managed by a city as a public utility?

Bus

Which of the following topologies connects all devices to a trunk cable?

Ring

Which of the following topologies connects each device to a neighboring device?

Messages are broadcast to all devices connected to the network.

You have a network that uses a logical bus topology. How do messages travel through the network?

Messages travel from one device to the next until they reach the destination device.

You have a network that uses a logical ring topology. How do messages travel through the network?

Star

You have a small network that uses a switch to connect multiple devices. Which physical topology are you using?

Peer-to-peer

You've implemented a network where each device provides all other devices on the network with access to shared files. Which type of network do you have?

Client-Server

You've implemented a network where hosts are assigned specific roles, such as file sharing and printing roles. Other hosts access those resources, but they don't host services of their own. Which type of network do you have?

Mesh

Your manager has asked you to implement a network infrastructure that will accommodate failed connections. Which of the following network topologies provides redundancy for a failed link?

Partial mesh

Your manager has asked you to implement a wired network infrastructure that will accommodate failed connections. You don't have a large budget, so you decide to provide redundancy for only a handful of critical devices. Which of the following network topologies should you implement?

Internet

A collection of many networks owned by many entities that share information and communicate together.

Terminator

A device that is connected to absorb signals and prevent them from reflecting repeatedly back and forth on the cable. Terminators are used with bus topology.

Local area network(LAN)

A group of computers and associated devices that share a common communications line or wireless link, typically to a server.

Intranet

A local or restricted communications network, especially a private network created using World Wide Web software.

Wide area network(WAN)

A network that connects several LANs. WANs are often limited to a corporation or an organization but are sometimes accessible to the public.

Multipoint Generic Routing Encapsulation(mGRE)

A tunnel interface.

Internet Protocol address(IP address)

An address that identifies the network and host address assigned to a device.

Extranet

An intranet that can be partially accessed by authorized outside users, enabling businesses to exchange information over the internet securely.

Metropolitan area network(MAN)

Computer users and resources within a geographic area the size of a metropolitan area that are connected.