1 Which layer of the OSI model covers physical media? * Layer 1 Layer 2 Layer 3 Layer 4 Layer 5 Layer 6 2 Which of the following companies are responsible for creating and implementing the first Ethernet LAN specifications? (Choose three.) * Intel Cisco * Digital * Xerox Microsoft Hewlett Packard 3 Which type of connector supports 100BASE-T Ethernet over Category 5e UTP? BNC * RJ-45 S/T MIC RJ-46 4 In which of the following situations would a straight-through cable be used? (Choose three.) router to router router to PC * router to switch * PC to hub switch to hub * switch to PC 5 What are the reasons for the Four Repeater Rule of 10 Mbps Ethernet? (Choose two.) to reduce total attenuation to prevent microsegmentation * to prevent late collisions to prevent bit slippage * to limit latency 6 Which of the following are benefits of wireless networks when compared to wired networks? (Choose two.) higher data speeds better security * mobility less expensive NIC cards * no need to run cables to hosts no transceivers required 7 Which of the following are hub types? (Choose three.) LAN core * active * passive * intelligent convergent 8 Which of the following are other names for a hub? (Choose two.) * concentrator transceiver switch bridge * multiport repeater active host 9 Which of the following are benefits of peer-to-peer networks? (Choose three.) centralized security * easy to create very scalable * no centralized equipment required * centralized administrator not required centralized control of assets 10 What are advantages of client/server networks? (Choose three.) * centralized security single point of failure * centralized backups lower operating costs * enhanced network services users control their own resources 11 What is the recommended maximum number of workstations configured on a peer-to-peer network? 25 15 * 10 5 2 12 What are the two basic functions of a switch? (Choose two.) * switching data frames cost effective operation switching Layer 3 traffic * build and maintain tables isolating packets on the LAN 13 What must be connected to the DB-15 AUI port to provide connectivity for an RJ-45 terminated cable? hub joystick * transceiver router WIC NIC 14 At which layer of the OSI model is a NIC classified? physical * data link network transport 15 Which protocol is typically used to carry data over an ISDN B channel? * PPP SLIP PAP Frame Relay 16 An ISDN BRI connection is composed of how many bearer channels? 1 * 2 3 4 17 Which port on a router is used with a modem to make configuration changes? Console * Aux BRI Ethernet 18 What type of network cable is used between a terminal and a console port? cross-over straight-through * rollover patch cable 19 Which devices provide signal clocking for WAN serial transmission? (Choose two.) switch * DCE server DTE * CSU/DSU 20 Which address does a bridge use to make filtering and switching decisions? source MAC source IP * destination MAC destination IP network IP address 21 Which of the following are technologies used in wireless data transmission? (Choose two.) Cat5 * IR TIA/EIA * RF IEEE 22 In a UTP crossover cable, which pairs of pins are crossed? (Choose two.) * 1 and 2 3 and 5 7 and 8 * 3 and 6 5 and 7 1 and 3 23 Which layer of the OSI model addresses cable and connector type? application presentation transport network data link * physical 24 What is the most widely used LAN technology? FDDI coaxial * Ethernet token-ring 25 Select the correct standards and pin locations for the Green/White and Green wire pair when building a crossover cable. (Choose two.) * 568A = 1 and 2 568A = 3 and 6 568A = 4 and 5 568B = 1 and 2 * 568B = 3 and 6 568B = 4 and 5