Re:세미터 2 Final Exam2의 정답좀 가르쳐주세요.

제가 자료실에 올린거 말구 작년 12월에 나온 semester 2 Final 입니다. 답은 있으니.. 이것이 나올수도 있겠네욤.. 그럼 + Semester2_final + Question 1: You want to create a message to let people know a little something about the network or router when they log on - what command enables you to do this? A. banner msg B. banner motd * C. daily msg D. daily motd Question 2: Which port is used to initially configure a router? A. Auxiliary B. Console * C. Serial D. BRI Question 3: What provides sequencing of segments with a forward reference acknowledgment, numbers datagrams before transmission, and reassembles the segments into a complete message? A. Simple UDP acknowledgment B. Expectational acknowledgments C. TCP sequence and acknowledgment numbers * D. Header checksums and data protocol checksums Question 4: How often are RIP updates broadcast? A. Every 15 seconds B. Every 30 seconds* C. Every 60 seconds D. Every 90 seconds Question 5: Which metrics are commonly used by routers to eval‎uate a path? A. EMI load, SDLC connections, deterioration rate B. Bandwidth, load, reliability* C. Distance, hub count, SN ratio D. Signal count, loss ratio, noise Question 6: Which of the following are stored in NVRAM? A. Routing Tables B. Configuration Files * C. IOS Image D. Power on diagnostics Question 7: Which protocol can find the MAC address of a computer given its IP address? A. RARP B. DHCP C. ARP * D. Proxy RARP Question 8: Which keys are pressed in the escape sequence to terminate the initial configuration while in setup mode? A. ESC B. CTRL-C * C. CTRL-ESC D. CTRL-SHIFT-6 , X Question 9: What is the data-link destination address of a broadcast message? A. 111.111.111.111 B. 255.255.255.255 C. AAAA.AAAA.AAAA D. FFFF.FFFF.FFFF * Question 10: Which metric is used in RIP? A. Bandwidth B. Delay C. Hop count * D. Traffic load Question 11: Why is a static route the preferred method for reaching stub networks? A. static routing requires less overhead * B. static routing requires more overhead on the network C. this allows routers to adjust to changes in the network D. the routes are learned automatically Question 12: Which step should be performed before copying software between the TFTP host and Flash memory? A. Use the ping command to check connectivity to the server B. Check that you can see and write into RAM memory C. Verify that there is sufficient room in RAM to accommodate the IOS * D. Check the configuration file name and location on the network server Question 13: Why are hold-down timers useful? A. They help prevent a router from immediately using an alternate route that includes the failed route * B. They force all routers in a segment to synchronize switching operations C. They reduce the amount of network traffic during high traffic periods D. They provide a mechanism for bypassing failed sections of the network Question 14: Which type of route is used when no other routes are known to the destination? A. Static B. Default * C. Dynamic D. Next available Question 15: If a new LAN is added to an internetwork, which command would add the network to the routing table? A. Router (config)> ip route 2.0.0.0 255.0.0.0 via 1.0.0.2 B. Router (config)# ip route 2.0.0.0 255.0.0.0 1.0.0.2 * C. Router (config)# ip route 2.0.0.0 via 1.0.0.2 D. Router (config)# ip route 2.0.0.0 1.0.0.2 using 255.0.0.0 Question 16: Which Cisco IOS command shows the configuration file stored in NVRAM? A. show version B. show running-config C. show startup-config * D. show interfaces Question 17: In which OSI Layer does the Cisco Discovery Protocol (CDP) operate? A. Layer 1 B. Layer 2 * C. Layer 3 D. Layer 4 Question 18: Which Cisco IOS command is used to enter privileged mode? A. admin B. root C. enable * D. privileged Question 19: Which command should identify destination network addresses and next hop pairs? A. Router(config)# show ip protocol B. Router# show ip table C. Router> show ip route * D. Router(config-router)# show ip table Question 20: Which router component provides working memory for configuration files and routing tables? A. RAM * B. ROM C. Flash D. NVRAM Question 21: At which OSI Layer would an incorrect encapsulation type on a serial interface be classified? A. Layer 4 B. Layer 3 C. Layer 2 * D. Layer 1 Question 22: Which Layer of the OSI model is concerned with the topology of a network? A. Transport B. Network C. Data Link* D. Physical Question 23: Which Cisco IOS command displays routing table entries? A. ping B. trace C. show ip route * D. show interface Question 24: What happens after a collision has occurred on a network after the jam signal is sent? A. The router clears the route and notifies the source to resend B. All stations stop sending frames for a randomly selected time period * C. A keepalive signal is generated to hold the message until the route clears D. The source station waits for the collision to dissipate and then broadcasts an all clear Question 25: Which describes Layer 3 path determination in the OSI model? A. enables switches to find the best path to a host * B. enables a switch to choose the next hop C. determines how a packet is forwarded on the same subnetwork D. enables a router to choose the next hop Question 26: What is the function of ARP? A. It is used to map a known MAC address to an unknown IP address. B. It is used to develop a cached Layer 4 address resource table. C. It is used to map a known IP address to an unknown MAC address. * D. It sends a broadcast message looking for the router IP address. Question 27: If a router has a serial interface S0, with IP address 107.85.20.2, using a subnet mask of 255.255.255.240, what is the broadcast address used for hosts on this subnet? A. 107.85.20.15 * B. 107.85.20.255 C. 107.85.255.255 D. 107.255.255.255 Question 28: Which command can be used to check the boot field setting? A. Router# show version * B. Router# show register C. Router# show running-config D. Router# show startup-config Question 29: Which command should display RIP routing updates as they are sent and received? A. Router# show ip rip B. Router# debug ip protocols C. Router# debug ip rip * D. Router# show ip rip update Question 30: What best describes the difference between a routed protocol versus a routing protocol? A. Routed protocols are used between routers to maintain tables while routing protocols are used to carry user data. B. Routed protocols use distance vector algorithms while routing protocols use link-state algorithms. C. Routed protocols are used to carry user data while routing protocols maintain tables. * D. Routed protocols use dynamic addressing while routing protocols use static addressing. Question 31: Which command is used to tell the router to boot from ROM? A. Router# boot system rom B. Router# boot system rom IOS_filename C. Router(config)# boot system rom * D. Router(config)# boot system rom IOS_filename Question 32: How are link-state routing updates triggered? A. By timers B. By topology changes * C. By protocol changes D. By changing the NIC Question 33: What is the function of the reload command? A. It reboots the router * B. It saves the new IOS to Flash memory C. It loads a new configuration file in NVRAM D. It loads a configuration file from a TFTP server Question 34: What correctly describes the five conversion steps of data encapsulation? A. Data-segments-packets-frames-bits * B. Data-packets-segments-frames-bits C. Data-frames-segments-packets-bits D. Data-segments-frames-packets-bits Question 35: What is the purpose of exterior routing protocols? A. To transmit between nodes on a network B. To deliver information within a single autonomous system C. To communicate between autonomous systems * D. To set up a compatibility infrastructure between networks Question 36: Which configuration register mode is used to tell the router to boot from ROM monitor mode? A. 0x---0 * B. 0x---1 C. 0x---2 D. 0x---3 Question 37: Which command is used to configure a routing protocol? A. Router# rip network 192.11.10.0 B. Router(config)# router rip * C. Router(config)# routing rip D. Router(config)# routing protocol rip Question 38: Which technique controls the amount of unacknowledged data in transit at any one time and helps enable TCP reliability? A. Windowing * B. Broadcasting C. Error recovery D. Collision avoidance Question 39: What is a WAN? A. A network that connects users across a large geographic area * B. A network that connects devices in a workgroup setting C. A network that connects business departments in a building D. A network that connects physically adjacent devices Question 40: Which routing protocol maintains a complex database of topology information and uses link-state advertisements (LSAs)? A. RIP B. IGRP C. OSPF * D. EIGRP Question 41: Which command is used to backup the active configuration file from a router to a network server? A. copy tftp startup-config B. copy running-config tftp * C. copy tftp flash D. copy NVRAM tftp Question 42: A router received a packet with a destination address of 172.16.14.228. Assuming a subnet mask of 255.255.248.0, what is the subnet network address for the destination host? A. 172.16.1.0 B. 172.16.4.0 C. 172.16.8.0 * D. 172.16.12.0 Question 43: How many bits are in the network and subnet portion of a class B network with a subnet mask of 255.255.240.0? A. 18 B. 19 C. 20 * D. 21 Question 44: At which Layer of the OSI model would you classify the loss of network connectivity due to a loose patch cable? A. Layer 7 B. Layer 5 C. Layer 3 D. Layer 1 * Question 45: Which best describes convergence? A. When messages simultaneously reach a router and a collision occurs B. When several routers simultaneously route packets along the same path C. When all routers in an internetwork have the same knowledge of the structure and topology of the internetwork * D. When several messages are being sent to the same destination Question 46: If a Class B network is subnetted with a mask of 255.255.240.0, how many useable subnets are created? A. 2 B. 6 C. 14 * D. 30 Question 47: Someone got into a router configuration file and changed the password to access privileged mode. Which mode on the router enables you to recover passwords? A. SETUP B. RXBOOT * C. Privileged EXEC D. Global configuration Question 48: What is the function of the erase startup-config command? A. It deletes the current IOS from NVRAM B. It deletes the configuration file in RAM C. It deletes the configuration file in NVRAM * D. It deletes the bootstrap image from Flash memory Question 49: What is specified by the network number in an IP address? A. the network to which the host belongs * B. the identity of the computer on the network C. the node that is being addressed D. the network broadcast identity of subnetwork Question 50: If you are unsure of the options (subcommands) for a command, which keystroke(s) should you try on the user interface of a Cisco router? A. Help B. ? * C. CTRL-H D. CTRL-P Question 51: What will happen if routers have different sets of LSAs? A. A check sum procedure is initiated and faulty routing tables repaired. B. Routes become unreachable because routers disagree about a link. * C. A comparison is forced and subsequent convergence on a single routing table occurs. D. A broadcast message is sent with the master copy of the routing table to all routers. Question 52: When working with Cisco IOS, at which level of access are users able to view router status but are unable to change router configuration? A. User mode * B. Enable mode C. Privileged mode D. Global configuration mode Question 53: Which is a network layer protocol that can be routed? A. IP * B. ISP C. NetBEUI D. ARP Question 54: At which Layer of the OSI model would flow control problems exist? A. Application B. Presentation C. Session D. Transport * Question 55: Which of the following is provided by the show version command? A. Information about the interfaces B. Information about the routing protocol C. Information about the system image file * D. Information about the default gateway Question 56: If you want to turn off the name-to-address translation in the router, which command would you use? A. no ip host B. no ip address C. no ip name-search D. no ip domain-lookup * Question 57: Where is the next place a router looks if it cannot find the IOS image in flash? A. RAM B. ROM C. TFTP * D. NVRAM Question 58: Which is an example of a data circuit terminating equipment (DCE)? A. Modem * B. Computer C. Router D. Multiplexer