Cisco 642-901 Real Exam Questions And Answers, Most Hottest Cisco 642-901 Testing OnlineCisco 642-901 Real Exam Questions And Answers, Most Hottest Cisco 642-901 Testing Online
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QUESTION 110
Refer to the exhibit. Routers R1 and R2 are IPv6 BGP peers that have been configured to support a neighbor relationship over an IPv4 internetwork. Which three neighbor IP addresses are valid choices to use in the highlighted section of the exhibit? (Choose three.)
A. ::0A43:0002
B. 0A43:0002::
C. ::10.67.0.2
D. 10.67.0.2::
E. 0:0:0:0:0:0:10.67.0.2
F. 10.67.0.2:0:0:0:0:0:0
Correct Answer: ACE Section: (none) Explanation
Explanation/Reference:
QUESTION 111
Refer to the exhibit. BGP has been configured on the routers in the network.
However, the IBGP peers in autonomous system 65200 have not converged. In addition, this console
message was generated on router R2:
*Mar 1 03:09:07.729: %TCP-6-BADAUTH No MD5 digest from 10.10.23.2(179) to 10.10.23.3(11002)
On the basis of the information that is provided, what is the cause of the problem?
A. BGP authentication can be used on eBGP peers only.
B. The password that is used for BGP authentication on both BGP peers in autonomous system 65200 must be the same.
C. BGP authentication can be used on iBGP peers when the connection is configured between the loopback interfaces.
D. OSPF must be configured with the same MD5 authentication.
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 112
Refer to the exhibit diagram and configuration. RTB is summarizing its networks from AS 64100 with the aggregate-address command. However, the show ip route command on RTA reveals the RTB individual networks as well as its summary route. Which option would ensure that only the summary route would appear in the routing table of RTA?
A. Delete the four network statements and leave only the aggregate-address statement in the BGP configuration.
B. Add the keyword summary-only to the aggregate-address command.
C. Add a static route with a prefix of 192.168.24.0 255.255.252.0 pointing to the null0 interface.
D. Create a route map permitting only the summary address.
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 113
Router RTA is configured as follows:
RTA (config)#router rip RTA(config-router)#network 10.0.0.0 RTA(config-router)#distribute-list 44 in interface BRI0 RTA(config-router)#exit RTA(config)#access-list 44 deny 172.16.1.0 0.0.0.255 RTA(config)#access-list 44 permit any
What are the effects of this RIP configuration on router RTA? (Choose two.)
A. no routing updates will be sent from router RTA on interface BRI0 to router RTX
B. router RTA will not advertise the 10.0.0.0 network to router RTX
C. the route to network 172.16.1.0 will not be entered into the routing table on router RTA
D. user traffic from the 172.16.1.0 network is denied by access-list 44
E. the routing table on router RTA will be updated with the route to router RTW
Correct Answer: CE Section: (none) Explanation
Explanation/Reference:
QUESTION 114
During the redistribution process configured on RTA, some of the EIGRP routes, such as 10.1.1.0/24 and 10.2.2.0/24, are not being redistributed into the OSPF routing domain.
Which two items could be a solution to this problem? (Choose two.)
A. Change the metric-type to 2 in the redistribute command.
B. Configure the redistribute command under router eigrp 1 instead.
C. Change the EIGRP AS number from 100 to 1 in the redistribute command.
D. Add the subnets option to the redistribute command.
E. Change the metric to an EIGRP compatible metric value (bandwidth, delay, reliability, load, MTUs) in the redistribute command.
Correct Answer: CD Section: (none) Explanation
Explanation/Reference:
QUESTION 115
Which IS-IS router is equivalent to an ABR in OSPF?
A. Level 0
B. Level 1
C. Level 2
D. Level 3
E. Level 1-2
F. Level 2-3
Correct Answer: E Section: (none) Explanation
Explanation/Reference:
QUESTION 116
Refer to the exhibit. Routers R1 and R2 have established a neighbor relationship and are exchanging routing information. The network design requires that R1 receive routing updates from R2, but not advertise any routes to R2. Which configuration command sequence will successfully accomplish this task?
A. R1(config)# router eigrp 1 R1(config-router)# passive-interface serial 0
B. R2(config)# router eigrp 1 R2(config-router)# passive-interface serial 0
C. R1(config)# access-list 20 deny any R1(config)# router eigrp 1 R1(config-router)# distribute-list 20 out serial 0
D. R2(config)# access-list 20 deny any R2(config)# router eigrp 1 R2(config-router)# distribute-list 20 out serial 0
E. R1(config)# access-list 20 permit any R1(config)# router eigrp 1 R1(config-router)# distribute-list 20 in serial 0
F. R2(config)# access-list 20 permit any R2(config)# router eigrp 1 R2(config-router)# distribute-list 20 in serial 0
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 117
Hotspot
A.
B.
C.
D.
Correct Answer: Section: (none) Explanation
Explanation/Reference:
QUESTION 118
Refer to the exhibit. Given the exhibited router output, which command sequence can be added to R1 to generate a default route into the OSPF domain?
A. default-router
B. ip default-network
C. default-information originate always
D. ip default-gateway
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 119
Refer to the exhibit. During the process of configuring a virtual link to connect area 2 with the backbone area, the network administrator received this console message on R3:
*Mar 1 00:25:01.084: %OSPF-4-ERRRCV: Received invalid packet: mismatch area ID, from backbone area must be virtual link but not found from 20.20.20.1, Serial 0
How should the virtual link be configured on the OSPF routers to establish full connectivity between the areas?
A. R1(config-router)# area 1 virtual-link 30.30.30.3 R3(config-router)# area 1 virtual-link 20.20.20.1
B. R1(config-router)# area 1 virtual-link 20.20.20.2 R3(config-router)# area 1 virtual-link 30.30.30.2
C. R1(config-router)# area 0 virtual-link 1.1.1.1 R3(config-router)# area 2 virtual-link 3.3.3.3
D. R1(config-router)# area 1 virtual-link 3.3.3.3 R3(config-router)# area 1 virtual-link 1.1.1.1
E. R1(config-router)# area 1 virtual-link 2.2.2.2 R3(config-router)# area 1 virtual-link 2.2.2.2
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 120
LAB
A. Portland# conf t Portland(config)# router ospf 1 Portland(config-router)# network 192.168.5.4 0.0.0.3 area 1 Portland(config-router)# area 1 stub Portland(config-router)# end Portland# copy run start Indianapolis# conf t Indianapolis(config)# router ospf 1 Indianapolis(config-router)# network 192.168.5.4 0.0.0.3 area 1 Indianapolis(config-router)# area 1 stub no-summary Indianapolis(config-router)# end Indianapolis# copy run start
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 121
The command bgp always-compare-med is added to a router configuration.
What will this command accomplish?
A. forces the router to compare metrics of routes from different autonomous systems
B. forces the router to compare the local preference of routes from different autonomous systems
C. forces the router to compare the weight of routes from different autonomous systems
D. forces the router to compare the communities of routes from different autonomous systems
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 122
An administrator is redistributing OSPF into RIP. RIP is routing the 128.103.36.0/24 network. OSPF is routing the 128.103.35.32/28 network. Users in the RIP domain cannot reach devices in the OSPF domain. Which two tasks must be done to enable RIP to advertise the routes learned from OSPF into the RIP domain? (Choose two.)
A. Add a static route that points to the RIP domain address space with a /24 network mask and a next hop of 128.103.36.2.
B. Add a static route that points to the OSPF domain address space with a /24 network mask with a next hop of null0.
C. Tune the OSPF default metrics to allow seamless redistribution into RIP.
D. Redistribute configured static routes into RIP.
E. Use a route map statement inserted into a distribute list to control routing updates.
Correct Answer: BD Section: (none) Explanation
Explanation/Reference: QUESTION 123
Which two provide intra-area routing services? (Choose two.)
A. L1 IS
B. L1 ES
C. L2 IS
D. L2 ES
E. L1/L2 IS
Correct Answer: AE Section: (none) Explanation
Explanation/Reference:
QUESTION 124
Refer to the exhibit. All routers have Protocol Independent Multicast (PIM) enabled interfaces. On the basis of the configuration provided on routers R1 and R2, which router will take on the function of rendezvous point (RP) for the multicast network?
A. router R1
B. router R2
C. both routers R1 and R2
D. none of the routers since they are not configured with static RP
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 125
Refer to the exhibit. Which two statements are true about the partial configuration that is shown? (Choose two.)
A. The first DHCP client to connect to the FastEthernet 0/0 interface will receive the IP address 10.0.0.6.
B. The first DHCP client to connect to the FastEthernet 0/1 interface will receive the IP address 10.10.0.1.
C. The first DHCP client to connect to the FastEthernet 0/0 interface will receive the IP address 10.0.0.1
D. Hosts connected to the FastEthernet0/1 interface will not receive DHCP replies from the router.
E. DHCP requests received on the FastEthernet 0/1 interface will be forwarded to 10.0.0.2.
Correct Answer: AD Section: (none) Explanation
Explanation/Reference:
QUESTION 126
Refer to the exhibit. Routers R1 and R2 have established a neighbor relationship and are exchanging routing information. The network design requires that R1 receive routing updates from R2, but not advertise any routes to R2. Which configuration command sequence will successfully accomplish this task?
A. R1(config)# router eigrp 1 R1(config-router)# passive-interface serial 0
B. R2(config)# router eigrp 1 R2(config-router)# passive-interface serial 0
C. R1(config)# access-list 20 deny any R1(config)# router eigrp 1 R1(config-router)# distribute-list 20 out serial 0
D. R2(config)# access-list 20 deny any R2(config)# router eigrp 1 R2(config-router)# distribute-list 20 out serial 0
E. R1(config)# access-list 20 permit any R1(config)# router eigrp 1 R1(config-router)# distribute-list 20 in serial 0
F. R2(config)# access-list 20 permit any R2(config)# router eigrp 1 R2(config-router)# distribute-list 20 in serial 0
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 127
Hotspot
A.
B.
C.
D.
Correct Answer: Section: (none) Explanation
Explanation/Reference:
QUESTION 128
Refer to the exhibit. EIGRP is enabled on all routers on the network. What additional configuration is required for the routers connected over the Frame Relay multipoint interfaces to compensate for a low-speed NBMA connection?
A. Configure the EIGRP hello interval on all Frame Relay interfaces to 5 seconds.
B. Configure the EIGRP hello interval on all Frame Relay interfaces to 60 seconds.
C. Configure the EIGRP hold time on all Frame Relay interfaces to 15 seconds.
D. Configure the EIGRP hold time on all Frame Relay interfaces to 180 seconds.
E. Configure the bandwidth on all EIGRP Frame Relay interfaces to the committed information rate (CIR).
F. Configure the bandwidth on all EIGRP Frame Relay interfaces to the lowest CIR multiplied by the number of PVCs for the multipoint connection.
Correct Answer: F Section: (none) Explanation
Explanation/Reference:
QUESTION 129
Which show command will display the two values used in the calculation of the EIGRP metric?
A. show protocol
B. show ip eigrp interface
C. show interface
D. show ip eigrp neighbor
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 130
Which three restrictions apply to OSPF stub areas? (Choose three.)
A. No virtual links are allowed.
B. The area cannot be a backbone area.
C. Redistribution is not allowed unless the packet is changed to a type 7 packet.
D. The area has no more than 10 routers.
E. No autonomous system border routers are allowed.
F. Interarea routes are suppressed.
Correct Answer: ABE Section: (none) Explanation
Explanation/Reference:
QUESTION 131
Refer to the exhibit. IP multicast configuration changes have been made on several routers. However, the IP multicast table displayed in the exhibit still does not reflect the changes.
What should be done to display the new routing table information?
A. Issue the no ip mroute-cache privileged EXEC command.
B. Issue the clear ip igmp group privileged EXEC command.
C. Issue the clear ip mroute privileged EXEC command.
D. Issue the clear ip route * privileged EXEC command.
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 132
Identify three characteristics of EIGRP feasible successors? (Choose three.)
A. A feasible successor is selected by comparing the advertised distance of a non-successor route to the feasible distance of the best route.
B. If the advertised distance of the non-successor route is less than the feasible distance of best route, then that route is identified as a feasible successor.
C. If the successor becomes unavailable, then the feasible successor can be used immediately without recalculating for a lost route.
D. The feasible successor can be found in the routing table.
E. Traffic will be load balanced between feasible successors with the same advertised distance.
Correct Answer: ABC Section: (none) Explanation
Explanation/Reference: QUESTION 133
What are three kinds of OSPF areas? (Choose three.)
A. stub
B. active
C. remote
D. backbone
E. ordinary or standard
Correct Answer: ADE Section: (none) Explanation
Explanation/Reference:
QUESTION 134
Based on the show ip bgp summary output, which two statements are true? (Choose two.)
A. The BGP session to the 10.1.1.1 neighbor is established.
B. The BGP session to the 10.2.2.2 neighbor is established.
C. The BGP session to the 10.3.3.3 neighbor is established.
D. The router is attempting to establish a BGP peering session with the 10.1.1.1 neighbor.
E. The BGP session to the 10.3.3.3 neighbor is established, but the router has not received any BGP routing updates from the 10.3.3.3 neighbor.
F. The router is attempting to establish a BGP peering session with the 10.2.2.2 neighbor.
Correct Answer: AF Section: (none) Explanation
Explanation/Reference:
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