ActualTests.Cisco.640-802.Exam.Q.and.A.08.15.08-DDU (1130589), страница 62
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pingB. tracertC. netstatD. show cdp neighbors detailE. show ip routeF. tracerouteG. ipconfigAnswer: AExplanation:Packet Internet Groper (PING) uses ICMP echo requests and replies to verify networkconnectivity. It is most commonly used to verify connectivity to another device and tomonitor the operational status of a device.QUESTION 542:Actualtests.com - The Power of Knowing640-802Part of the Certkiller network is shown below:In this network segment, host Certkiller A is trying to communicate with HostCertkiller B. The e0 interface on Router Certkiller 3 is down. Which of the followingare true? (Choose two.)A. Router Certkiller 3 will send a Source Quench message type.B. Router Certkiller 3 will use ICMP to inform Host Certkiller A, Router Certkiller 1, andRouter Certkiller 2 that Host Certkiller B cannot be reached.C.
Router Certkiller 3 will send a Router Selection message type.D. Router Certkiller 3 will send a Destination Unreachable message type.E. Router Certkiller 3 will use ICMP to inform Router Certkiller 2 that Host Certkiller Bcannot be reached.F. Router Certkiller 3 will use ICMP to inform Host Certkiller A that Host Certkiller Bcannot be reached.Answer: D, FQUESTION 543:What kind of message does a PING send out to test connectivity?A. ICMP echo requestB.
Information interrupt requestC. Timestamp replyD. Source quenchE. None of the aboveAnswer: AExplanation:The ping command sends an ICMP echo request packet to the stated destination address.The TCP/IP software at the destination then replies to the ping echo request packet with aActualtests.com - The Power of Knowing640-802similar packet, called the ICMP echo reply.Reference: CCNA Self-Study CCNA ICND exam certification Guide (Cisco Press,ISBN 1-58720-083-X) Page 146QUESTION 544:The topology table for the Certkiller EIGRP network is shown below from routerCertkiller 3:Based on the information shown above, how many broadcast domains exist in theCertkiller EIGRP topology?A.
SixB. OneC. ThreeD. TwoE. FiveF. FourG. None of the aboveAnswer: CQUESTION 545:The following output was shown on router Certkiller 4:Actualtests.com - The Power of Knowing640-802Based on the output of Certkiller 4 shown above, what can be determined aboutroutes that are learned from the router at IP address 190.171.23.12?A. If Certkiller 4 Router does not receive an update from 190.171.23.12 in 30 seconds, allroutes from that source will be removed from the routing tableB.
Certkiller 4 Router last received an update from 190.171.23.12 at 3:30amC. 190.171.23.12 is expected to send an update to Certkiller 4 Router for network190.172.0.0 in 3 minutes and 30 secondsD. If Certkiller 4 Router does not receive an update from 190.171.23.12 in 30 seconds, allroutes from that source will be flagged with a hold-down timerE.
None of the aboveAnswer: AQUESTION 546:Part of the Certkiller WAN is shown below:Actualtests.com - The Power of Knowing640-802In this Certkiller network segment, subnet 10.1.3.0/24 is unknown to routerCertkiller 2. Which router command will prevent router Certkiller 2 from dropping apacket destined for the 10.1.3.0/24 network if a default route is configured?A. ip default-networkB. network 10.1.1.0C.
ip classlessD. network 10.1.1.0 0.0.0.255 area 0E. None of the aboveAnswer: CQUESTION 547:In the network below, HostA cannot ping HostB. Assuming routing is properlyconfigured, what could be the cause of this problem?Actualtests.com - The Power of Knowing640-802A. The Fa0/0 interface on CK-B is using a broadcast address.B. The serial interfaces of the routers are not on the same subnet.C. The address of SwitchA is a subnet address.D.
The Fa0/0 interface on router CK-A is on a subnet that can't be used.E. HostA is not on the same subnet as its default gateway.F. None of the aboveAnswer: BExplanation:A subnet mask of /27 (255.255.255.224) will have 3 bits used for the network portion and5 bits for the host portion. This will create 2^3 = 8 networks with 2^5 = 32 hosts pernetwork. From this we know that the number of subnets will be a multiple of 32, makingthe subnets:1. 192.168.1.02.
192.168.1.323. 192.168.1.644. 192.168.1.965. 192.168.1.1286. 192.168.1.1607. 192.168.1.1928. 192.168.1.224From this, we can see that the serial interface of router CK-A lies within the secondnetwork shown above while the serial interface of CK-B lies within the third. For directlyconnected routers they should be in the same IP subnet.QUESTION 548:Actualtests.com - The Power of Knowing640-802The Certkiller network is shown in the exhibit below:The show ip route command was issued from one of the routers shown in the exhibitand the following output was displayed:10.0.0.0/30 is subnetted, 4 subnetsO 10.10.10.8 [110/128] via 10.10.10.2, 00:02:44, Serial0/0O 10.10.10.12 [110/128] via 10.10.10.6, 00:02:44, Serial0/1C 10.10.10.0 is directly connected, Serial0/0C 10.10.10.4 is directly connected, Serial0/1C 192.168.1.0/24 is directly connected, FastEthernet0/0O 192.168.2.0/24 [110/138] via 10.10.10.6, 00:02:44, Serial0/1 [110/138] via 10.10.10.2,00:02:44, Serial0Which router produced this output?A.
CK1B. CK2C. CK3D. CK4Answer: BExplanation:You can see the host having address 192.168.1.25 is connected to the CK2 router throughswitch SW1 in the ethernet port of the router. Based on the diagram, the 192.168.1.0 isconnected to the LAN port of CK2 , and in the routing table we see that this network isindeed shown as a connected route on the Fa 0/0 interface.QUESTION 549:The following debug was used on a Certkiller router:Actualtests.com - The Power of Knowing640-802Based on the information shown above, which of the following statement are trueregarding the command output shown in the exhibit? (Choose two)A.
There are at least two routers participating in the RIP processB. A ping to 10.0.15.2 will be successfulC. A ping to 192.168.168.2 will successfulD. RtrA has three interfaces participating in the RIP processAnswer: A, BQUESTION 550:The "show interface Ethernet 0" command was issued on a Certkiller router asshown below:Actualtests.com - The Power of Knowing640-802The router output shown in the graphic indicates that 534 runts have been detectedby the router interface.
What are possible causes of this condition?A. A large number of collisionsB. A faulty network interface cardC. A decrease in the size of the collision domainD. Fragment-free switchingE. Incorrect network addressingF. TTL failuresAnswer: A, BExplanation:Runts are packets that are discarded because they are smaller than the medium'sminimum packet size. Any Ethernet packet that is less than 64 bytes is considered a runt.In half-duplex environments, it is possible for both the switch and the connected deviceto sense the wire and transmit at exactly the same time and result in a collision.Collisions can cause runts, FCS, and alignment errors, caused when the frame is notcompletely copied to the wire, which results in fragmented frames.Runts are the result of collisions, faulty NIC's, duplex mismatch, IEEE 802.1Q (dot1q),or an Inter-Switch Link Protocol (ISL) configuration issue.Reference:http://www.cisco.com/en/US/products/hw/switches/ps700/products_tech_note09186a00800a7af0.shtmlQUESTION 551:Why was the "show processes" command used on a Certkiller router before a debugcommand was entered on it?A.
To verify that the CPU utilization is low enough to handle the effects of a debugcommandB. To verify the amount of space in flash memoryC. To view the number of timers that are currently in useD. To check if the load meter file has enough space left to store the output of the debugcommandE. To verify the IOS version that is runningF. None of the aboveAnswer: AExplanation:The show processes command displays information about the active processes. Issue theshow processes cpu command to display detailed CPU utilization statistics on theseprocesses and theActualtests.com - The Power of Knowing640-802show processes memory command to show the amount of memory used.The following is a sample output of the show processes command:CK1 #show processesCPU utilization for five seconds: 0%/0%; one minute: 0%; fiveminutes: 0%PID Q Ty PC Runtime(ms) Invoked uSecs Stacks TTY Process1 C sp 602F3AF0 0 1627 0 2600/3000 0 Load Meter2 L we 60C5BE00 4 136 29 5572/6000 0 CEF Scanner3 L st 602D90F8 1676 837 2002 5740/6000 0 Check heaps4 C we 602D08F8 0 1 0 5568/6000 0 Chunk Manager5 C we 602DF0E8 0 1 0 5592/6000 0 Pool Manager6 M st 60251E38 0 2 0 5560/6000 0 Timers7 M we 600D4940 0 2 0 5568/6000 0 Serial Backgroun8 M we 6034B718 0 1 0 2584/3000 0 OIR Handler9 M we 603FA3C8 0 1 0 5612/6000 0 IPC Zone ManagerIt is always a good idea to check the CPU utilization levels before doing anything thatmay increase the CPU load, such as using debug commands.QUESTION 552:Two Certkiller routers are directly connected as shown below:A network administrator cannot access Router2 from Router1.
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