CCNA 3 Chapter 8 v5.0 Exam Answers 2015 (100%) CCNA 5 Page 1

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1 CCNA 3 Chapter 8 v5.0 Exam Answers 2015 (100%) 1. Refer t the exhibit. All netwrks are active in the same EIGRP ruting dmain. When the aut-summary cmmand is issued n R3, which tw summary netwrks will be advertised t the neighbrs? (Chse tw.) / / / / /16 2. Refer t the exhibit. Ruter R3 is receiving multiple rutes thrugh the EIGRP ruting prtcl. Which statement is true abut the implementatin f summarizatin in this netwrk? CCNA 5 Page 1

2 Autmatic summarizatin has been enabled nly fr the /24 netwrk. Autmatic summarizatin is disabled n R3. Autmatic summarizatin is enabled n neighbring ruters. Autmatic summarizatin is disabled n a per-interface basis. 3. Refer t the exhibit. Which statement is supprted by the utput? A static default rute has been manually cnfigured n this ruter. Summarizatin f rutes has been manually cnfigured. A default rute is being learned thrugh an external prcess. The rute t represents the cnfiguratin f a lpback interface. CCNA 5 Page 2

3 4. Which three statements are advantages f using autmatic summarizatin? (Chse three.) It maximizes the number f rutes in the ruting table. It increases the size f ruting updates. It reduces the frequency f ruting updates. It ensures that traffic fr multiple subnets uses ne path thrugh the internetwrk. It imprves reachability in discntiguus netwrks. It decreases the number f entries in the ruting table. 5. Refer t the exhibit. Which tw rutes will be advertised t the ruter ISP if autsummarizatin is disabled? (Chse tw.) / / / / /30 6. Which address best summarizes the IPv6 addresses 2001:DB8:ACAD::/48, 2001:DB8:9001::/48, and 2001:DB8:8752::/49? 2001:DB8:8000::/ :DB8:8000::/ :DB8:8000::/47 CCNA 5 Page 3

4 2001:DB8:8000::/48 7. What is a characteristic f manual rute summarizatin? requires high bandwidth utilizatin fr the ruting updates reduces ttal number f rutes in ruting tables cannt include supernet rutes has t be cnfigured glbally n the ruter 8. Refer t the exhibit. Which statement accurately reflects the cnfiguratin f ruting n the HQ ruter? A static default rute was cnfigured n this ruter. A static default rute was learned via EIGRP ruting updates. The static default rute shuld be redistributed using the default-infrmatin riginate cmmand. The IP address assigned t the GigabitEthernet0/0 interface is Refer t the exhibit. A netwrk administratr has attempted t implement a default rute frm R1 t the ISP and prpagate the default rute t EIGRP neighbrs. Remte cnnectivity frm the EIGRP neighbr ruters t the ISP cnnected t R1 is failing. Based n the utput frm the exhibit, what is the mst likely cause f the prblem? CCNA 5 Page 4

5 The cmmand default-infrmatin riginate has nt been issued n R1. There are n EIGRP neighbr relatinships n R1. The ip rute cmmand must specify a next-hp IP address instead f an exit interface when creating a default rute. The cmmand redistribute static has nt been issued n R1. The netwrk statement fr the ISP cnnectin has nt been issued. 10. In which IOS CLI mde must a netwrk administratr issue the maximumpaths cmmand t cnfigure lad balancing in EIGRP? glbal cnfiguratin mde interface cnfiguratin mde privileged mde ruter cnfiguratin mde 11. Tw ruters, R1 and R2, share a 64 kb/s link. An administratr wants t limit the bandwidth used by EIGRP between these tw ruters t 48 kb/s. Which cmmand is used n bth ruters t cnfigure the new bandwidth setting? ip bandwidth-percent eigrp ip bandwidth-percent eigrp ip bandwidth-percent eigrp ip bandwidth-percent eigrp ip bandwidth-percent eigrp CCNA 5 Page 5

6 12. Refer t the exhibit. A netwrk administratr has issued the shwn cmmands. The EIGRP ruting dmain has cmpletely cnverged and a netwrk administratr is planning n cnfiguring EIGRP authenticatin thrughut the cmplete netwrk. On which tw interfaces shuld EIGRP authenticatin be cnfigured between R2 and R3? (Chse tw.) serial 0/0/1 f R2 serial 0/1/0 f R2 gig 0/0 f R3 serial 0/0/1 f R3 serial 0/1/0 f R4 13. Refer t the exhibit. A netwrk administratr has cnfigured EIGRP authenticatin between ruters R1 and R2. After the ruting tables are reviewed, it is nted that neither ruter is receiving EIGRP updates. What is a pssible cause fr this failure? CCNA 5 Page 6

7 The same key chain name must be used n each ruter. The same number f key strings must be used n each ruter. The key string shuld be used in interface mde instead f the key chain. The same autnmus system numbers must be used in the interface cnfiguratins f each ruter. The authenticatin cnfiguratin is crrect, issue the shw ip eigrp neighbrs cmmand t trublesht the issue. 14. Tw ruters, R1 and R2, have established an EIGRP neighbr relatinship, but there is still a cnnectivity prblem. Which issue culd be causing this prblem? an authenticatin mismatch an access list that is blcking advertisements frm ther netwrks autmatic summarizatin that is disabled n bth ruters a prcess ID mismatch 15. Refer t the exhibit. Remte users are experiencing cnnectivity prblems when attempting t reach hsts in the /24 netwrk. Using the utput in the exhibit, what is the mst likely cause f the cnnectivity prblem? The passive-interface cmmand is preventing neighbr relatinships n interface GigabitEthernet 0/0. CCNA 5 Page 7

8 The hell timer has been mdified n interface GigabitEthernet 0/1 f R3 and nt n the neighbr, causing a neighbr adjacency nt t frm. The GigabitEthernet 0/1 interface is nt participating in the EIGRP prcess. The GigabitEthernet interfaces are nt limiting the flw f EIGRP message infrmatin and are being flded with EIGRP traffic. 16. Refer t the exhibit. After the cnfiguratin shwn is applied n ruter R1, the exhibited status message is displayed. Ruter R1 is unable t frm a neighbr relatinship with R2 n the serial 0/1/0 interface. What is the mst likely cause f this prblem? The passive-interface cmmand shuld have been issued n serial 0/1/0. The hell interval has been altered n serial 0/1/0 and is preventing a neighbr relatinship frm frming. The netwrk statement used fr EIGRP 55 des nt enable EIGRP n interface serial 0/1/0. The IPv4 address cnfigured n the neighbr that is cnnected t R1 serial 0/1/0 is incrrect. The netwrks that are cnfigured n serial 0/0/0 and serial 0/1/0 f ruter R1 are verlapping. 17. Refer t the exhibit. Ruters R1 and R2 are directly cnnected via their serial interfaces and are bth running the EIGRP ruting prtcl. R1 and R2 can ping the directly cnnected serial interface f their neighbr, but they cannt frm an EIGRP neighbr adjacency. What actin shuld be taken t slve this prblem? CCNA 5 Page 8

9 Enable the serial interfaces f bth ruters. Cnfigure EIGRP t send peridic updates. Cnfigure the same hell interval between the ruters. Cnfigure bth ruters with the same EIGRP prcess ID. 18. Refer t the exhibit. Cnsidering that R2, R3, and R4 are crrectly cnfigured, why did R1 nt establish an adjacency with R2, R3, and R4? because the autmatic summarizatin is enabled n R1 because the Fa0/0 interface f R1 is declared as passive fr EIGRP because the IPv4 address n Fa0/0 interface f R1 is incrrect CCNA 5 Page 9

10 because there is n netwrk cmmand fr the netwrk /24 n R1 19. In which scenari will the use f EIGRP autmatic summarizatin cause incnsistent ruting in a netwrk? when there is n adjacency that is established between neighbring ruters when there is n cmmn subnet that exists between neighbring ruters when the ruters in an IPv4 netwrk have mismatching EIGRP AS numbers when the ruters in an IPv4 netwrk are cnnected t discntiguus netwrks with autmatic summarizatin enabled 20. Which cmmand can be issued n a ruter t verify that autmatic summarizatin is enabled? shw ip eigrp interfaces shw ip prtcls shw ip interface brief shw ip eigrp neighbrs 21. Fill in the blank. D nt use abbreviatins. What is the cmmand that shuld be issued n a ruter t verify that EIGRP adjacencies were frmed? shw ip eigrp neighbrs 22. Fill in the blank. D nt use abbreviatins. The passive-interface cmmand causes an EIGRP ruter t stp sending hell packets thrugh an interface. 23. Open the PT Activity. Perfrm the tasks in the activity instructins and then answer the questin. R1 and R2 culd nt establish an EIGRP adjacency. What is the prblem? EIGRP is dwn n R1. EIGRP is dwn n R2. R1 Fa0/0 and R2 Fa0/0 are n different netwrks. R1 Fa0/0 is nt cnfigured t send hell packets. R1 Fa0/0 link lcal address is wrng. CCNA 5 Page 10