Messages travel from one device to the next until they reached the destination device.
You have a network that uses a logical bus topology.
How do messages travel through the network?
Messages are broadcast to all devices connected to the network.
Which of the following topologies connects each network device to a central hub?
A hub creates a network with a physical star topology. The physical star topology uses a logical bus topology, where messages are sent to all devices connected to the hub. A mesh topology is a series of point-to-point links between devices. A ring topology uses a central device called an MSAU.
Which of the following is the best definition for a LAN?
Which of the following is the best definition for a LAN? A network in a small geographic area, like in an office. A LAN is a network in a small geographic area, like in an office. A WAN is a network whose computers and servers are geographically far apart but still connected.
What device is used to create a physical star topology?
What device is used to create a physical star topology? A physical star topology uses a switch or a hub. Routers are used to connect multiple subnets together. A repeater regenerates a network signal so that it can be transmitted for longer distances.
Which OSI model layer is responsible for guaranteeing reliable message delivery?
What is the cheapest topology?
Bus (line) topology:
- The simplest and cheapest to install and extend.
- Well suited for temporary networks with not many nodes.
- Very flexible as nodes can be attached or detached without disturbing the rest of the network.
- Failure of one node does not affect the rest of the bus network.
When would you typically use an rj11 connector?
RJ-11 connectors are typically used for telephones and modems. When would you normally use an RJ-11 connector? RJ-11 connector is used for connecting analog telephones to the telephone jack. Cat 3, Cat 5, and higher twisted pair cables use RJ-45 connectors.
Which of the following defines a network?
network. A network is defined as a group of two or more computer systems linked together. There are many types of computer networks, including the following: local-area networks (LANs): The computers are geographically close together (that is, in the same building).
In what ways does a network benefit a company?
Computer networking enables employees to share ideas more easily and work more efficiently. It increases their productivity and generates more income for the company. More importantly, computer networking improves the way companies offer their services to the world.
Which network component connects a device to the transmission media?
network interface card (NIC)
How do switches learn where devices are located on the local network?
How do switches and bridges learn where the devices are located on a network? When a frame enters a port, the source MAC address is copied from the frame header. Bridges and switches learn addresses by copying the MAC address of the source device and placing it into the MAC address table.
What kind of connector do you use to connect a modem to a standard telephone line?
A DSL router consists of a box which has an RJ11 jack to connect to a standard subscriber telephone line. It has several RJ45 jacks for Ethernet cables to connect it to computers or printers, creating a local network.
What is the basic purpose of the OSI physical layer?
What is the basic purpose of the OSI Physical layer? Coordinates rules for routing packets. Defines basic physical structures, such as disks. Coordinates rules for transmitting bits.