CIS 330 Network 1.7-1.12

__________________________ is a loss of signal strength as transmission travels away from the source.

Attenuation

State the three basic types of topology and their type of connectivity.

Bus Topology (Multipoint Connectivity) Ring Topology (Point-to-Point Connectivity) Star Topology (Point-to-Point Connectivity)

__________________________ switching is a type of network transport system in which the connection is established between two network nodes before they begin transmitting data. Data travels the same path initially selected by the switch. This method is similar to a telephone call and is used by Asynchronous Transfer Mode (ATM), Dial-up, ISDN and T1 connections. It is also used by live audio or video conferencing.

Circuit

State the three types of switching.

Circuit Switching Message Switching Packet Switching

__________________________ switching is a type of network transfer system in which a connection is established between two devices in the connection path. One device transfers data to the other, then breaks the connection. It uses the "store and forward" approach and continues until the message reaches its destination. It is used by e-mail systems.

Message

__________________________ switching is a type of network transfer system in which the data are broken into packets before they are transported. These packets can travel any path on the network to their destinations, because each packet contains the destination address and sequencing information. The destination node on a packet switched network reassembles the packets based on their control information. This method is fast and efficient and is used on the Internet. Examples are Ethernet and FDDI.

Packet

__________________________ is a component of a network's logical topology that determines how connections are created between nodes.

Switching

A ring topology is an active topology.

True

An acknowledgement is sent to the sender by the recipient of the data on a token ring network.

True

Ethernet is ideal for networks with light traffic because of its simplicity.

True

The bus topology is a multipoint topology.

True

The point-to-point connectivity of rings makes it possible to build very fast fiber-optic rings that operate over large distances. An example is FDDI.

True

The token passing protocol of the ring topology performs efficiently at high traffic levels.

True

A(n) __________________________ hub in a star network regenerates the signals as it receives them and sends them along. It generally has many ports and is sometimes called a "multiport repeater". This type of hub requires electrical power to run.

active

In a __________ topology, a series of computers are connected along a single cable segment.

bus

A __________________________ is a central point of concentration for a star network. It passes electronic signals to computers on the network.

hub

The _________ topology describes the data flow on the network between the individual nodes.

logical

In a _______ topology, there are multiple paths between the end nodes of each computer.

mesh

The ________ describes the fundamental layout used to interconnect the nodes in a local area network.

network topology

A __________________________ is sometimes referred to as the network's logical topology. It describes the network's logical connections between nodes, rather than its physical connections.

network transport system

The ________ topology describes the cabling scheme of the network.

physical

A ring topology consists of a __________________________ connection from each node on the network to the next. The last node is connected to the first to form a closed ring. Each node must retransmit the signal that it receives from the previous node to the next node in the ring. The data travels in one direction around the ring.

point-to-point

In a bus topology, a __________________________ is used to eliminate the effects of signal attenuation. It strengthens a digital signal.

repeater

In a ________ topology, computers are connected to form a loop. This topology uses a MAU.

ring

In a __________________________ topology, all of the computers on the network are connected by cable segments to a central multistation access unit (MAU). It contains an active interface for each node. Each computer node is then wired to one of the interfaces on this unit.

ring

In a bus topology, __________________________ occurs when a bus is not terminated and signals continue to traverse the network. It prevents other computers from sending data. All signals must stop when they reach the end of any segment in a bus topology.

signal bounce

In a _________ topology, computers are connected via a central concentration point (hub or switch).

star

With the __________________________ topology, the network is controlled by a central station that acts as a steering device, passing data from one node to another node as data is required. Each computer in the network is connected point-to-point to the control station or central node. This central node can be a hub, bridge, switch or router.

star

A __________________________ is a special networking device that manages network connections between any pair of star-wired devices on a network. It organizes a group of devices into virtual LANs. It offers greater bandwidth (able to segregate a network) and intelligence.

switch

In a bus topology, a __________________________ is attached to each end of a cable which prevents signals from bouncing. It absorbs an electronic signal.

terminator

In a ring topology, the signals use a __________________________ to travel in one direction around the ring.

token

The channel access method (data getting on the network) on a ring topology that uses a token is called __________________________.

token passing