CIT854 Email: bbcnoun@gmail.com Whatsapp: 08131667008 The fibre cable consists of an optical fibre, called the core, surrounded by a concentric layer of glass, called the Answer: cladding The weak point for using cable is that any single point of failure hangs up the whole network. Answer: coaxial A Local Area Network refers to one that is capable of carrying only one signal at a time. Answer: baseband The multiplexing techniques allow the frequency of the medium to be divided into channels or paths. Answer: spectrum Digital links can discrete signals like electromagnetic pulse, whereas analogue links carry electromagnetic signals. Answer: continous If a link allows data to be transmitted in both directions, but only in one way at one time, the link is said to be Answer: half-duplex If two streams of data can be transmitted over the link in opposite directions at the same time, the link is said to be Answer: full-duplex One major drawback of arrangement is that if the hub fails, the entire network will go down. Answer: star The network .is responsible for sending data from the computer memory to the outside network and also receiving data destined for that computer from the outside network Answer: adaptor links only allow data flow in one direction. Answer: simplex Signals usually occur Answer: asynchronously are physical media that connect the nodes. Answer: links A topology does not require a lot of cable and the wiring is simple. Answer: bus Data exchanged between nodes are in units of Answer: frames The thick ethemet uses additional device called the Answer: tranceiver is the most expensive cable used in networking, but it is capable of higher data rates. Answer: fibre optic A broadband network refers to one using technology to send data through the transmission medium. Answer: frequency division multiplexing (fdm) Since a is composed of point-to-point connections, connectivity is an important design consideration. Answer: wan The of a bus controls the number of bits that can be transmitted at onetime. Answer: width The stations that join two or more local area networks and address these issues are called Answer: routers Email: bbcnoun@gmail.com Whatsapp: 08131667008