Cisco I IC 112906 Compare the following : 10BASE 5 and 10BASE T 10 BASE 5 has a higher segment length (500 meters) but only supports coaxial cable 10 BASE T has a lower segment length (100 meters) but supports CAT 3,4, and 5 UTP cable 100BASE-TX and 100BASE-FX 100 BASE TX has a lower segment length (100 meters) but only supports CAT 5 UTP 100 BASE FX has a higher segment length (400 meters) and supports 62.5/125 fiber optic cable What is the pinout for a console cable ? 1 ---------- 8 2 ---------- 7 3 ---------- 6 4 ---------- 5 5 ---------- 4 6 ---------- 3 7 ---------- 2 8 ---------- 1 Why would a network administrator choose to implement Gigabit Ethernet from the backbone to the end user ? higher bandwith provides high speed file transfer, maybe for a person who needs a high amount of bandwith because of the nature of his job i.e. computer graphics artist On what type of network device are you likely to find “serial 1/0” Router What does IEEE 802.3 describe? Ethernet LAN type i.e. 802.3u Fast Ethernet How many pins does an AUI port have? 15 pins A repeater allows multiple hosts to be connected by taking an incoming signal and generating a new, clean network signal. Why doesn’t the repeater simply amplify the incoming signal? Because the signal would be amplified after its distortion/deterioration took place, Making a large deteriorated signal and transmitting the deteriorated signal along the rest of the network. Peer to peer and client – server are 2 types of networks Switches build data tables to make decisions on how to deal with data frames. Name 2 pieces of information contained within these tables. The interface and the MAC address Switches operate at which layer of the OSI model? Data-Link A network associate is performing an initial configuration on a new Cisco 2811 router. Which port on the router will be used to perform this task? serial port (DB-60) MAC is associated with which layer of the OSI model? Data-Link How do you connect an AUI port on a Cisco 2500 router to a CAT 5 ethernet cable? Use a transceiver that converts an AUI to an RJ-45 Which device has a higher latency – switches or bridges? Why? Switches, because they simply transmit frames; Bridges decide whether to filter, flood, or copy the frame onto another segment Name 3 disadvantages to peer to peer networks. - As networks increase in size peer-to-peer relationships become difficult to coordinate - Scaling: peer-to-peer networks only operate with ten or fewer computers otherwise performance decreases - Security: Each user controls security, making it difficult to maintain Describe a situation where a router would be DTE. Router used to connect private network to the Web or a WAN Describe a situation where a router would be DCE. Router used to connect LAN 1 to LAN 2 (router would be located and connected at LAN 2) Define and describe ISDN BRI - Has two types of interfaces BRI U and BRI S/T - NT1 – Network Termination Device located between Router and service provider ISDN switch - A router is BRI U if the NT1 is integrated - A router is BRI S/T if the NT1 is not integrated What network device provides connectivity to a WAN ? DSL or cable modem