Resumo do conteúdo contido na página número 1
640 - 607
640-607
Cisco Certified Network Associate 2.0
CCNA 2.0
Version 3.0
Leading the way in IT testing and certification tools, www.testking.com
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Resumo do conteúdo contido na página número 2
640 - 607 Important Note Please Read Carefully This product will provide you questions and answers along with detailed explanations carefully compiled and written by our experts. Try to understand the concepts behind the questions instead of just cramming the questions. Go through the entire document at least twice so that you make sure that you are not missing anything. We are constantly adding and updating our products with new questions and making the previous versions bett
Resumo do conteúdo contido na página número 3
640 - 607 Q. 1 Your Ethernet network, 172.30.1.0, shuts down. Which update message is seen in your router's debug ip rip output regarding that network? A. subnet 172.30.1.0, metric 0 B. subnet 172.30.1.0, metric 1 C. subnet 172.30.1.0, metric 15 D. subnet 172.30.1.0, metric 16 Answer: D Explanation: In RIP when a network in not reachable then its metric is change to 16. Incorrect Answers: A is incorrect; this is not a valid metric. B is incorrect; this metric indicates that
Resumo do conteúdo contido na página número 4
640 - 607 C is incorrect; the show boot IOS command displays the settings of the boot environment variables. Steve McQuerry. Interconnecting Cisco Network Devices. (Cisco Press: 2000) pages 128-137. http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/1214ea1/3550cr/ccimtoc.htm Q. 3 When setting up Frame Relay for point-to-point subinterfaces, which of the following must not be configured? A. The Frame Relay encapsulation on the physical interface B. The local DLCI on each su
Resumo do conteúdo contido na página número 5
640 - 607 The dialer map command is used to define one or more dial-on-demand numbers to reach one or more destinations for a particular interface. This is the exact command to associate an ISDN phone number with the next hop router address. Incorrect Answers: A is incorrect; this is not a valid command. C is incorrect; the isdn spid1 command specifies the SPID required for b channel to access the ISDN network when your router makes its call to the local ISDN exchange. D is incorre
Resumo do conteúdo contido na página número 6
640 - 607 B. (config-if)# dialer-list 1 C. (config-if)# dialer map 1 D. (config-if)# dialer-route 1 Answer: A Explanation: Once the above commands have been entered to enabled DDR, then the last step required is to bind the traffic destination to an interface by linking the interesting traffic definition already created. This is done with the dialer-group command. In this case the proper command would be (config-if)# dialer-group 1. Incorrect Answers: B is incorrect; the inter
Resumo do conteúdo contido na página número 7
640 - 607 Answer: B Explanation: To ensure that the line comes up the encapsulation type must be enabled. This is done with the encapsulation ppp command. Incorrect Answers: A is incorrect; the interface is already enable therefore this command in not required. C is incorrect; the serial interface has already been created, this command would not solve the problem. D is incorrect; this will only set the clock rate and not bring solve the problem. Steve McQuerry. Interconnecting
Resumo do conteúdo contido na página número 8
640 - 607 B is incorrect; as the DLCI are significant to just the two routers involved in the exchange of information it is not proper to refer to globally significant DLCI. C is incorrect; locally significant LMI is not the answer. LMIs are responsible for managing the connection between the routers and not the assignment of numbers. D is incorrect; globally significant LMI is not the answer. LMIs are responsible for managing the connection between the routers and not the assignment o
Resumo do conteúdo contido na página número 9
640 - 607 Delay of this IPX network, in ticks is 1 throughput 0 link delay 0 IPXWAN processing not enabled on this interface. IPX SAP update interval is 1 minute(s) IPX type 20 propagation packet forwarding is disabled Incoming access list is not set Outgoing access list is not set IPX helper access list is not set SAP GNS processing enabled, delay 0 ms, output filter list is not set SAP Input filter list is not set SAP Output filter list is not set SAP Router filter list is not set
Resumo do conteúdo contido na página número 10
640 - 607 D is incorrect; this only part of the MAC address thus incorrect. F is incorrect; this is the IPX address. As stated previously this address is part layer 3 and part layer 2. Steve McQuerry. Interconnecting Cisco Network Devices. (Cisco Press: 2000) pages 332 and 345-6. Q. 10 Which devices operate at all seven layers of the OSI model? (Choose three.) A. Network host B. Network management station C. Transceiver D. Bridge E. Web server F. Switch Answer:
Resumo do conteúdo contido na página número 11
640 - 607 Answer: C. Explanation: In general, IP addresses contain two fields: one for the network and another for host. Class A address have a range of 1 to 126 and the network portion of the IP address is restricted to the first eight bits (octet). Class B address have a range of 128 –191.255.0.0 and the network portion of the IP address is contain in the first 2 octets. Class C IP addresses has a range of 192.223.255.255.0 and the network portion of the IP addresses is the first thr
Resumo do conteúdo contido na página número 12
640 - 607 C is incorrect; the network layer provides logical addressing so that routers can perform route determination. C is incorrect; the transport layer provides delivery of the data and error correction prior to retransmit. E is incorrect; the session layer is responsible for establishing, managing, and terminating communications sessions between presentation layer entities. Steve McQuerry. Interconnecting Cisco Network Devices. (Cisco Press: 2000) pages 11-12. Q. 13 A packet
Resumo do conteúdo contido na página número 13
640 - 607 Explanation: Bridge networks have the following characteristics: each segment has its own collision domain, all connected devices are part of the same broadcast domain, and all segments must have the same data link layer implementation. Incorrect Answers: B is incorrect; when a network is segmented by a bridge the collisions domains increase and not decrease. C and D are incorrect; the addition of a bridge to a network has no effect on the number of domains. Steve McQuer
Resumo do conteúdo contido na página número 14
640 - 607 Answer: A Explanation: The key to answering this question is “Serial0 is down”. This indicates that the actual serial inerface is down. Thus there is a problem with the physical layer. Incorrect Answers: B is incorrect; the exhibit does not indicate a problem with the data link layer. C is incorrect; the exhibit does not indicate a problem with the network layer. D is incorrect; if the output just indicated that “line protocol is down” then a their would be a problem
Resumo do conteúdo contido na página número 15
640 - 607 C. Host 1-1 can not ping Host 1-2 D. Host 4-1 can not ping Host 1-2 E. Host 4-1 can ping Host 4-2 Answer: A, B and E. Explanation: If hosts from the different VLANs can ping each other then you can confirm the proper VLAN configuration and truck operation. Incorrect Answers: C is incorrect; if this occurred this would indicate a problem. D is incorrect; if this occurred this would indicate a problem. Steve McQuerry. Interconnecting Cisco Network Devices. (Cisco Pre
Resumo do conteúdo contido na página número 16
640 - 607 B. The VLAN must be named. C. An IP address must be configured for the ACCOUNTS VLAN. D. The desired ports must be added to the new VLAN: E. The VLAN must be added to the STP domain. Answer: A, B, D Explanation: To add a VLAN there are a number of things that must be done. First it must be created, then named and assigned ports. Incorrect Answers: C is incorrect; IP addresses do not need to be configured for VLANs. D is incorrect; the VLAN does not need to be added to
Resumo do conteúdo contido na página número 17
640 - 607 A is incorrect; in a switched environment the frame will not be immediately sent. B is incorrect; this is the point at which the cut-through mode will start sending a frame. C is incorrect; this is the point at which the fragment-free mode start sending a frame. Steve McQuerry. Interconnecting Cisco Network Devices. (Cisco Press: 2000) pages 162-163. Leading the way in IT testing and certification tools, www.testking.com - 17 -
Resumo do conteúdo contido na página número 18
640 - 607 Q. 20 Which commands could be used at the command line interface to troubleshoot LAN connectivity problems on a router? (Choose three.) A. ping B. tracert C. ipconfig D. show ip route E. winipcfg F. show interfaces Answer: A, D, F Explanation: There are a number of commands that can be used to troubleshoot connectivity problems on a router. The ping command verifies connectivity, the show ip route command shows a great deal of information that is useful for troubl
Resumo do conteúdo contido na página número 19
640 - 607 Q. 21 What are the effects of sustained, heavy collisions in CSMA/CD LANs? (Choose three.) A. Increased broadcast traffic B. Delay C. Low throughput D. High throughput E. Congestion F. Higher bandwidth Answer: B, C, E Explanation: Whenever there is sustained high collision environment the results are longer delays, congestion and low throughput. Incorrect Answers: A is incorrect; this will not increase broadcast traffic. D is incorrect; due to the collision the t
Resumo do conteúdo contido na página número 20
640 - 607 Steve McQuerry. Interconnecting Cisco Network Devices. (Cisco Press: 2000) pages 45-48. Q. 23 Which of the following are unique characteristics of half-duplex Ethernet as compared to full-duplex Ethernet? (Choose two.) A. Shared collision domain. B. Private collision domain C. Higher effective throughput D. Lower effective throughput E. Private broadcast domain Answer: A, D Explanation: Half-duplex Ethernet have a lower effective throughput due to shared collision d
