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1. For which type of connection should a straight-through cable be used? A. switch to switch B. switch to hub C. switch to router D. hub to hub E. router to PC Answer: C
2. Which type of cable is used to connect the COM port of a host to the COM port of a router or switch? A. crossover B. straight-through C. rolled D. shielded twisted-pair Answer: C
3. What is the first 24 bits in a MAC address called? A. NIC B. BIA C. OUI D. VAI Answer: C
4. In an Ethernet network, under what two scenarios can devices transmit? (Choose two.) A. when they receive a special token B. when there is a carrier C. when they detect no other devices are sending D. when the medium is idle E. when the server grants access Answer: CD
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5. Which two benefits are provided by using a hierarchical addressing network addressing scheme? (Choose two.) A. reduces routing table entries B. auto-negotiation of media rates C. efficient utilization of MAC addresses D. dedicated communications between devices E. ease of management and troubleshooting Answer: AE
6. When a host transmits data across a network to another host, which process does the data go through? A. standardization B. conversion C. encapsulation D. synchronization Answer: C
7. Which two Ethernet fiber-optic modes support distances of greater than 550 meters? A. 1000BASE-CX B. 100BASE-FX C. 1000BASE-LX D. 1000BASE-SX E. 1000BASE-ZX Answer: CE
8. What are some of the advantages of using a router to segment the network? (Choose two.) A. Filtering can occur based on Layer 3 information. B. Broadcasts are eliminated. C. Routers generally cost less than switches. D. Broadcasts are not forwarded across the router. E. Adding a router to the network decreases latency.
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Answer: AD
9. For what two purposes does the Ethernet protocol use physical addresses? (Choose two.) A. to uniquely identify devices at Layer 2 B. to allow communication with devices on a different network C. to differentiate a Layer 2 frame from a Layer 3 packet D. to establish a priority system to determine which device gets to transmit first E. to allow communication between different devices on the same network F. to allow detection of a remote device when its physical address is unknown Answer: AE
10. A network interface port has collision detection and carrier sensing enabled on a shared twisted pair network. From this statement, what is known about the network interface port? A. This is a 10Mb/s switch port. B. This is a 100Mbs switch port. C. This is an Ethernet port operating at half duplex. D. This is an Ethernet port operating at full duplex. E. This is a port on a network interface card in a PC. Answer: C
11. What is CSMA/CD? A. It is a deterministic mechanism that allows the orderly transmission of frames. B. It is a way that priority is determined for data transmission based on MAC address. C. It is a set of rules that determines path selection in an Ethernet network. D. It is a set of rules that allows the best-effort transmission of frames in a LAN environment. Answer: D
12. What kind of cable should be used to establish a trunked link between two Catalyst 2950 switches? A. a straight-through cable B. an EIA/TIA-232 serial cable
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C. an auxiliary cable D. a modem cable E. a cross-over cable Answer: E
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