CCNP-BSCN(3)
添加时间: 2007-9-6 0:40:02 作者: Cisco考试认证 阅读次数:54 来源: http://www.d9soft.com
b. Version 1 is fully compatible with VLSM
c. Version 1 does not have a subnet field in its update packet
d. Version 1 is limited to 15 hops, while Version 2 is limited to 30
130. Which of the following are advantages of using EIGRP instead of RIP?
a. EIGRP supports hierarchical routing
b. EIGRP has less overhead on the router’s memory than RIP
c. EIGRP supports route summarization
d. EIGRP supports classless routing
131. How many subnetworks and hosts per subnet are available in the network 151.17.18.0 with subnet mask 255.255.192.0?
a. 4 subnets with 32,382 hosts each
b. 8 subnets with 8094 hosts each
c. 8 subnets with 16,384 hosts each
d. 2 subnets with 16,382 hosts each
132. During the final stages of OSPF convergence, when can the OSPF router begin to send user data?
a. Exchange
b. Loading
c. 2-way
d. Full
133. What command should be used to create a tunnel interface?
134. Which of the following is true of Route-Maps?
a. They do not support Quality of service
b. They do not support load sharing
c. The do not support source-based transit provider selection
d. The do not permit Load Sharing
135. Which of the following is untrue regarding routers running external BGP?
a. They must form a TCP port 179 connection with each other
b. Routers are running EBGP when two BGP speaking routers are in the same AS
c. They should be directly connected
d. Routers are running EBGP when two BGP speaking routers are in different AS’s
136. What distance computation is used by OSPF, and not EIGRP?
137. After the DR and BDR have been elected and master/slave adjacencies are established, OSPF routers use what method for network discover?
a. 2-way
b. init
c. Loading
d. Exchange
138. What command will enable OSPF on the router with a process ID of 6?
139. What command will allow BGP to advertise routes before learning them from IGP
140. Which of these OSPF statement uses access-list style inverted wildcard masks?
a. area 2 range 101.17.82.0 255.255.255.0
b. network 101.17.82.0 255.255.255.0 area 2
c. network 101.17.82.0 0.0.0.255 area2
d. area 2 range 101.17.82.0 0.0.0.255
141. IBGP by default requires full mesh. What command will allow IBGP to overcome this limitation?
142. What command can be used to determine which OSPF Areas are configured on the router you are examining?
143. A packet is destined for 172.16.1.1. Which of the following routes will be selected as the best path?
a. BGP received route for 172.16.1.0/16 with administrative distance 20
b. OSPF received route for 172.16.1.0/28 with administrative distance 110
c. Default static route for 0.0.0.0/0 with administrative distance 1
d. RIP received rout for 172.16.1.0/30 with administrative distance 120
144. Which of the following are effects of the passive-interface command?
a. Continue sending periodic DV updates
b. Stop sending periodic DV updates
c. Continue to listen to DV updates
d. Prohibit Link State routing protocols from forming adjacencies
145. Your serial interface is connected to a 1000kbps CIR frame relay connection. You configure the interface with the appropriate bandwidth command. What would be the OSPF calculated cost of this interface?
a. 1
b. 10
c. 100
d. 1000
146. Which of the following are true of EIGRP?
a. It supports IP, IPX, and AppleTalk
b. It maintains backwards IGRP compatibility by sending out periodic updates
c. It maintains one routing table per supported routed protocol
d. It replicates the routing table of its neighbors
e. It only sends out updates when it detects a network routing change
147. What command will determine if your router has any feasible successors if EIGRP cannot determine the best path for a packet?
148. Which OSPF external metric type is not additive (ie, only includes the ASBR in the cost calculation)?
a. Type 1
b. Type 2
c. Type 3
d. Type 4
149. What command will view information about OSPF DR’s, BDR’s, and Neighbors?
150. Your routing tables are getting very large and you need to configure route summarization. How many Class C Internet addresses can you summarize with a /20 CIDR block?
a. 2
b. 4
c. 8
d. 16
151. What is the major shortcoming of using default IBGP full-mesh configurations?
a. The MED will be ignored
b. Compatibility problems
c. Route maps become mandatory
d. It does not scale
152. Which of these routing protocols support both VLSM and CIDR?
a. RIP1
b. EIGRP
c. OSPF
d. RIP2
153. Which of the following are true of Policy-Based Routing?
a. It is enabled by default
b. It is implemented with Route Maps
c. It does not permit for load balancing
d. It permits source-based packet redirection
154. OSPF has which of the following restrictions specified in an NBMA environment?
a. OSPF NBMA requires a Full Mesh environment
b. Neighbors must be manually configured if network type is NBMA
c. OSPF NBMA only functions in an all Area 0 environment
d. Hellos will not be sent to 224.0.0.5
155. What command will view the EIGRP routing table?
156. What built in OSPF feature is similar in concept to Spoofing?
a. Demand Circuits
b. Route Summarization
c. Bandwidth Aggregation
d. DDR
157. What command will determine if an OSPF router has been elected the DR?
158. Is BGP connection-oriented or connection-less, and what protocol transport does it use?
a. Connection-oriented/TCP
b. Connection-oriented/UDP
c. Connection-less/TCP
d. Connection-less/UDP
159. What are the major causes of IP network congestion?
a. Client/Server keepalives
b. User applications
c. DNS requests
d. Routing protocol updates
e. Encapsulated protocol transport
160. You configure frame relay between two routers. You are able to ping and telnet across this link. You then enable OSPF on both of these routers. Upon executing the command ‘show ip ospf neighbors’, you notice that the routers have not become neighbors. What commands will solve this problem?
161. What command will allow BGP to advertise the 10.1.0.0/16 IGP route that is already in the routing table?
162. You believe there are Route Redistribution problems in your network. Which of the following commands will help diagnose the specific problem?
a. show ip eigrp neighbor
b. debug ip packet dump
c. show ip route redistribution
d. show ip protocol
163. Which route types are passed by an OSPF ABR into a Stubby Area?
a. Generate Type 3-4
b. Generate Type 5
c. Generate Type 1-2
d. Generate 0.0.0.0
164. Which of these commands is not recommended for OSPF Multipoint NBMA configuration?
a. route-map
b. access-class
c. bandwidth
d. neighbor
165. What is indicated when an EIGRP route gets stuck in the Active state?
a. A route has vanished and DUAL is busy recomputing the next feasible successor
b. A route has vanished and the EIGRP neighbor has timed out to a status inquiry for the involved route
c. A route has vanished and DUAL has crashed the router
d. A route has vanished
166. Which of the following are benefits of Route Reflectors?
a. Migration is easy because normal IBGP neighbors are compatible
b. Redundancy is maintained through fully-meshing multiple route reflectors
c. Decreases the amount of time required to detect a routing loop
d. Eliminates IBGP full-mesh issues
167. Which of the following is true of OSPF ASBR?
a. It redistributes routing information with routers in other areas
b. All interfaces are in the same Area
c. At least one interface is in Area 0
d. ASBR’s are always in more than one area
168. How many subnetworks and hosts per subnet are available in the network 193.17.18.0 with subnet mask 255.255.255.240?
a. 14 subnets with 8 hosts each
b. 16 subnets with 8 hosts each
c. 14 subnets with 14 hosts each
d. 8 subnets with 16 hosts each
169. What command will display the entire EIGRP topology database?
170. BGP speaking routers have which of the following tables in memory at the same time?
a. Route Path
b. Route Table
c. BGP Path
d. BGP Table
171. Which of the following is true of Type 2 OSPF LSA?
a. It is a summary link entry and shows in routing tables as ‘IA’
b. It is a router link entry and shows in routing tables as ‘O’
c. It is an Autonomous System External type-1 and shows in routing tables as ‘E1’
d. It is a network link entry and shows in routing tables as ‘O’ for OSPF
172. What command will display a summary of all ABR’s in the entire OSPF network?
173. Which of the following are reasons why OSPF is considered superior to RIP in large networks?
a. OSPF has no hop count limit
b. OSPF sends immediate link state changes
c. OSPF uses a metric that can take bandwidth into consideration
d. OSPF supports VLSM and Route Summarization
e. All of the above
174. What command will view all OSPF adjacent routers?
175. Which of the following are valid methods BGP uses to discover neighbors?
a. Broadcasts only
b. Unicasts on nonbroadcast networks
c. Statically defined neighbors
d. Multicasts on broadcast networks
Answer Key:
1. A
2. B,C,D
3. B
4. A,B,C,D
5. A,D
6. sh ip ospf data
7. C
8. A,B
9. B,C
10. sh ip route eigrp
11. D
12. show ip protocols
13. A
14. B
15. B
16. area {area-id} virtual-link {router-id}
17. D
18. no auto-sum
19. A
20. C
21. C
22. B,C
23. Zaphoid(config-router)#metric maximum-hops 200
24. B,C
25. C
26. D
27. Ip summary-address eigrp 3 192.231.0.0 255.255.0.0
28. A,C,D,E
29. aggregate-address 10.1.4.0 255.255.252.0 summary-only
30. A
31. D
32. area 9 stub no-summary
33. area 9 stub
34. D
35. C
36. A
37. B,D
38. C
39. show ip interface
40. A
41. default-info originate al
42. C
43. B
44. B,D
45. A
46. A,C
47. A
48. C
49. A,B,D
50. B,D,E
51. show ip ospf
52. sh ip ospf int
53. B,C
54. show ip eigrp nei
55. A,C,D
56. B,C,D
57. A,B,D
58. sh ip ospf border-routers
59. A,B
60. clear ip bgp
61. redist igrp 5 metric-type 1
62. show ip ospf interface
63. A,B,C,E
64. C,D
65. B
66. B
67. D
68. C
69. sh ip eigrp nei
70. D
71. Summary-address 192.168.8.0 255.255.248.0
72. A,B,D
73. C,D
74. A
75. C
76. summary-address {address} {mask}
77. C
78. A,B,C
79. A
80. B
81. area virtual link
82. bandwidth 1000
83. A,B
84. D
85. C
86. D
87. Area 1 range 192.231.0.0 255.255.0.0
88. D
89. show ip bgp paths
90. C,D,E
91. ip route 0.0.0.0 0.0.0.0
92. D
93. C
94. sh ip ospf 76
95. D
96. D
97. D
98. 2
99. B
100. D
101. ip policy route-map jeffrey
102. A,B,D
103. Zaphoid(config-router)#redistribute rip 1 metric-type 1
104. A
105. Area 1 range 192.168.8.0 255.255.248.0
106. Default 0.0.0.0
107. A,B,D
108. summary-address {address} {mask}
109. D
110. D
111. A
112. D
113. C
114. B,D,E
115. B,C,D
116. A,B,D,E
117. sh ip ospf virtual-1
118. area 6 stub no-sum
119. A
120. interface serial 0
bandwidth 64
router eigrp 1
ip bandwidth-percent eigrp 1 75
121. A
122. shutdown (executed on interface e0)
123. A,B,E
124. Summary-address 192.232.0.0 255.255.0.0
125. A
126. B
127. A,B,C
128. A
129. C
130. A,C,D
131. D
132. D
133. interface tunnel 0
134. B
135. B
136. Cost
137. D
138. Router ospf 6
139. no synchronization
140. C
141. neighbor [ip-address] route-reflector-client
142. Show ip ospf
143. D
144. B,C,D
145. C
146. A,C,D,E
147. show ip eigrp topology all
148. B
149. show ip ospf nei det
150. C
151. D
152. B,C,D
153. B,D
154. B,D
155. show ip route eigrp
156. A
157. show ip ospf neighbor
158. A
159. B,C,D,E
160. ‘ip ospf network broadcast’ and ‘neighbor [ip address]’
161. network 10.1.0.0 mask 255.255.0.0
162. A,D
163. A
164. D
165. B,C
166. A,B,D
167. A
168. C
169. sh ip eigrp top all
170. B,D
171. D
172. show ip ospf border-router
173. E
174. show ip ospf neighbor
175. C
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