The following output exists on Router R1, a router internal to area 1. What can you d etermine as true from the output of the show ip ospf database summary command?（）
A. The LSA was created by an ABR due to an area range command.
B. The LSA was created by an ASBR due to a summary - address command.
C. If cr eated by an area range command, the best metric for a subordinate subnet on that ABR must have been 11.
D. None of the other answers is correct.
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R1, an ABR between backbone area 0 and area 1, has intra - area routes in area 0 for 10.1.1.0/24,10.1.2.0/24, and 10.1.3.0/24. These routes have metrics of 21, 22, and 23, respectively. An engineer then adds the area 0 r ange 10.1.0.0 255.255.0.0 command under the OSPF process of R1.
Which of the following is true?（）
A. R1 loses and then re - establishes neighborships with all neighbors.
B. R1 no longer advertises 10.1.1.0/24 to neighbors into area 1.
C. R1 advertises a 1 0.1.0.0/16 route into area 1 with a metric of 23 (largest metric).
D. R1 advertises a 10.1.0.0/16 route into area 1 with metric of 21 (lowest metric).
Use the same scenario as the previous question, w ith one changE.Instead of the distribute-list prefix question in command configured on R1,R1's OSPF process has an area 1 filter-list prefix question in commandconfigured. Again assuming that the subnets listed in the answers actually exist in area 0.
Which of the following occurs on router R1?（）
R1#sh ip prefix - list
ip prefix - list question: 4 entries
seq 5 deny 10.1.2.0/24 ge 25 le 27
seq 15 deny 10.2.0.0/16 ge 30 le 30
seq 20 permit 0.0.0.0/0 le 32
A. R1 will not create/flood a type 3 LSA for su bnet 10.1.2.0/26 into area 1
B. R1 will not create/flood a Type 3 LSA for subnet 10.1.2.0/24 into area 1
C. R1 will not have an OSPF route for subnet 10.1.2.0/26 in its IP routing tablE
D. R1 will not have an OSPF route for subnet 10.1.2.0/24 in its IP routing tablE
The following command output was gathered from Router R1, an ABR between areas 0 (backbone) and area 1. In this internetwork, area 0 contains all the subnets of cla ss A network 10.0.0.0. R1's OSPF process has a distribute - list prefix question in command configured. Assuming the subnets listed in the answers actually exist in area 0.
Which of the following occurs on router R1?（）
R1#sh ip prefix - list
ip prefix - list question: 4 entries
seq 5 deny 10.1.2.0/24 ge 25 le 27
seq 15 deny 10.2.0.0/16 ge 30 le 30
seq 20 permit 0.0.0.0/0 le 32
A. R1 will not create/flood a type 3 LSA for subnet 10.1.2.0/26 into area 1
B. R1 will not create/flood a Type 3 LSA for subnet 1 0.1.2.0/24 into area 1
C. R1 will not have an OSPF route for subnet 10.1.2.0/26 in its IP routing tablE
D. R1 will not have an OSPF route for subnet 10.1.2.0/24 in its IP routing tablE
Router B1, an internal router in area 1, displays the following output. The only two ABRs connected to area 1 are performing Type 3 LSA filterinG. Which of the following answers is true based on the information in the output from B1?（）
R1# show ip route 10.1.0.0 255.255.0.0 longer - prefixes
! Legend lines omitted for brevity
10.0.0.0/8 is variably subnetted, 17 subnets, 3 masks
O 10.1.2.0/24 [110/658] via 10.10.13.1, 00:00:32, Serial0/0/0.1
O IA 10.1.1.0/24 [110/658] via 10.10.23.2, 00:41:39, Ser ial0/0/0.2
O IA 10.1.3.0/24 [110/658] via 10.10.23.2, 00:41:39, Serial0/0/0.2
A. A Type 3 LSA for 10.2.2.0/24 was filtered by both ABRs
B. A Type 3 LSA for 10.1.2.0/24 was not filtered by both ABRs
C. A Type 3 LSA for 10.1.3.0/24 was not filtered by at least one ABR
D. A Type 3 LSA for 10.1.1.0/24 filtered by both ABRs
Which of the following LSA types describe information related to topology or subnets useful for calculating routes for subnets inside the OSPF domain?（）
A. 1
B. 2
C. 3
D. 4
E. 5
F. 7
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A client host uses IPv4 to communicate with one ser ver and IPv6 to communicate with another.Which of the following IPv6 coexistence features is likely at work on the host?（）
Router R1 connects to Router R2 over an Ethernet LAN with both routers using their F0/0 interfaces. R1 learns a route from R2 using EIGRP f or IPv6. That route lists F0/0 as the outgoing interface with R2 as the next hop. The configuration excerpt shows all relevant configuration on R2's F0/0 interface. Which of the following is true about R1's route?（）interface f0/0mac - address 1111.1111.1 111ipv6 address 2000::/64 eui - 64ipv6 address 2001::1/64
Router R1 currently has no configuration related to IPv6 or IPv4. The following configuration exists in a planning document, intended to be used to copy/paste into Router R1 to enable RIPng and IPv6 on interfaces F0/0 and S0/0/0. No other related configuration exists. Which of the following is true about RIPng on R1 after this configuration has been pasted into R1?（）ipv6 unicast- routinginterface f0/0ipv6 rip one enableipv6 address 2000::1/64interface s0/0/0ipv6 address 2001::/64 eui - 64ipv6 rip one enable
Router R1 currently has no configuration related to IPv6 or IPv4. The following configuration exists in a planning document, intended to be used to copy/paste into Router R1 to enable OSPFv3 on interfaces F0/0 and S0/0/0. No other related configuration exists. Assuming F0/0 and S0/0/0 reach an up/up state, which of the following is true about OSPFv3 on R1 after this configuration has been pasted into R1?（）ipv6 router ospf 1ipv6 unicast- routinginterface f0/0ipv6 address 2000 ::1/64ipv6 ospf 1 area 1interface s0/0/0ipv6 address 2001::/64 eui - 64ipv6 ospf 1 area 0
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Which of the following are true of both OSPFv2 and OSPFv3?（）
The following output on Router R1 lists details of a BGP route for 190.1.0.0/16. Which of the following is true based on this output?（）R1# show ip bgp 19 0.1.0.0/16BGP routing table entry for 190.1.0.0/16, version 121Paths: (1 available, best #1, table Default - IP - Routing - Table)Advertised to update - groups:11 2 3 41.1.1.1 from 2.2.2.2 (3.3.3.3)Origin IGP, metric 0, localpref 100, valid, internal, best
Router R1 sits at an Enterprise branch office, using the Internet for its only connectivity back to the rest of the EnterprisE.Which of the following is not a ben efit of using an IPsec tunnel for packets sent through the Internet, between R1 and the rest of the Enterprise?（）
Router R1, a branch router, connects to the Internet using DSL. Some traffic flows through a GRE and IPsec tunnel, over the DSL connection, destined for an Enterprise network.Which of the following answers best describes the router's logic that tells the router, for a given packet, to apply GRE encapsulation to the packet?（）
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