A network planning diagram shows a large internetwork with many routers. The configurations show that OSPF has been enabled on all interfaces, I P addresses correctly configured, and OSPF workinG.
For which of the following cases would you expect a router to create and flood a Type 2 LSA?（）
A. When OSPF is enabled on a LAN interface, and the router is the only router connected to the subnet.
B. When OSPF is enabled on a point - to -point serial link, and that router has both the higher router ID and higher interface IP address on the link.
C. When OSPF is enabled on a Frame Relay point - to - point subinterface, has the lower RID and lower subinterfa ce IP address, and otherwise uses default OSPF configuration on the interface.
D. When OSPF is enabled on a working LAN interface on a router, and the router has been elected BDR.
E. None of the other answers is correct.
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A network de sign shows area 1 with three internal routers, area 0 with four internal routers, and area 2 with five internal routers. Additionally, one ABR (ABR1) connects areas 0 and 1, plus a different ABR (ABR2) connects areas 0 and 2.
How many Type 1 LSAs would b e listed in ABR2's LSDB?（）
A. 6
B. 7
C. 15
D. 12
E. None of the other answers is correct.
A company has a Frame Relay WAN with one central - site router and 100 branch office routers. A partial mesh of PVCs exists: one PVC between the central site and each of t he 100 branch routers. All routers use point - to - point subinterfaces and one subnet per PVC.
Which of the following is true about OSPF in this design?（）
A. The central site router has 100 fully adjacent neighborships with the 100 branches
B. The central site router has neighborships with all branch routers, but fully adjacent neighbors with only two branches
C. The central site router has a neighborship with the Frame Relay switcH
D. None of the other answers is correct
A. The interface used to connect to that neighbor being passive in the OSPF process
B. Duplicate OSPF router IDs
C. Mismatched dead timers
D. IP addr esses of 10.1.1.1/24 and 10.2.2.2/24
E. Mismatched OSPF process IDs
Routers R1 and R2, OSPF neighbors in area 0 over their Fa0/0 interfaces (respectively), currently both successfully use OSPF MD5 authentication. The OSPF configuration includes the area 0 authentication command under the router ospf 1 command.
Which of the following commands must have been configur ed on R1's Fa0/0 interface?（）
A. ip ospf authentication null
B. ip ospf authentication message - digest
C. ip ospf authentication -key whatever- it - is
D. ip ospf message - digest - key 1 md5 whatever - it - is
E. ip ospf md5 1 key whatever - it - is
Routers R1 and R2 are OSPF neighbors using their Fa0/0 interfaces, respectively, using default settings for all timers. An engineer ad ds the ip ospf hello - interval 6 command to R1's Fa0/0 configuration.
Which of the following is true regarding the results from this change?（）
A. The show ip ospf neighbor command on R1 lists the revised Hello timer
B. The show ip ospf interfac e brief command on R1 lists the revised Hello timer
C. The R1 - R2 neighborship fails due to Hello timer mismatcH
D. The show ip ospf interface command on R1 lists the revised Hello timer
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Which of the following features work the same in both RIP- 2 and RIPng?（）
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?（）
Look at the following configuration below and select the statements that are true.（）RD2(config)#router ospf 100RD2(config - router)# distance 180 10.1.10.1 0.0.0.0 match - meRD2(config -router)#!RD2(config - router) #ip access - list standard match - meRD2(config - std - nacl)# permit host 172.16.0.0
Router R1 has two LAN interfaces and three serial interfaces enabled for IPv6. All the inte rfaces use link local addresses automatically generated by the router.Which of the following could be the link local address of R1's interface S0/0?（）
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
The following configura tion exists on a router on one end of an IPv6 tunnel. Which type of tunnel is created by this configuration?（）interface loopback 1ip address 1.1.1.1 255.255.255.255interface tunnel 2ipv6 address 2000::1::/64tunnel source loopback 1tunnel destina tion 2.2.2.2tunnel mode ipv6ipipv6 eigrp 1
Which of the following IPv6 tunneling mechanisms support IPv6 IGP routing protocols?（）
An enterprise h as plans to start adding IPv6 support. For the first year, the IPv6 will be in small pockets spread around the existing large IPv4 network, with occasional IPv6 traffic while applications teams test IPv6 - enabled servers and applications.Which of the fol lowing tools would be most appropriate?（）
Which of the following is the shortest valid abbreviation for FE80:0000:0000:0000:0010:0000:0000:0123?（）
The following configuration exists on a router on one end of an IPv6 tunnel. Although the configuration added so far is correct, the configuration is incomplete. Which type of tunnel is most likely to be intended by the network engineer？（）interface loopback 1ip address 192.168.1.1 255.255.255.255interface tunnel 2ipv6 address 2002:C0A8:10 1::1/64tunnel source loopback 1