多选题On router R1， which three of the following protocols will be forwarded to a host specified by the "iphelper-address" interface configuration command if the configuration has not been modified by the"ip forward-protocol udp" global configuration command

Router R1 exists in an Enterprise that uses EIGRP as its routing protocol. The show ip route command output on router R1 lists the following phrase: "Gateway of last resort is 1.1.1.1 to network 2.0.0.0".Whic h of the following is most likely to have caused this output to occur on R1?（）

A. R1 has been configured with an ip default- network 2.0.0.0 command.

B. R1 has been configured with an ip route 0.0.0.0 0.0.0.0 1.1.1.1 command.

C. R1 has been configured with an ip route 2.0.0.0 255.0.0.0 1.1.1.1 command.

D. Another router has been configured with an ip default - network 2.0.0.0 command.

E. Another router has been configured with an ip route 2.0.0.0 255.0.0.0 1.1.1.1 command.

A. The router will rebroadcast any DHCP requests received by this interface out to all interfaces included in the ip helper - address commands.

B. The router will rebroadcast any UDP broadcasts received by this interface out to all interfaces included in the ip helper - address commands.

C. The router will unicast any DHCP requests received by this interface out to all addresses included in the ip helper - address commands.

D. This configuration will not do anything because the ip helper - address command needs to also be applied to the 192.168.23.1 IP address.

A. This command is applied to the core router facing interface.

B. This command is applied to the customer facing interface.

C. The 4 is locally significant and identifies the layer 2 circuit.

D. The 4 must match exactly on the peer router configuration on the remote end.

A. The default administrative distance is used.

B. The command is used to establish a static route.

C. The command is used to configure the router interfaces.

D. The command is used to establish a stub network.

E. The subnet mask for the source address is 255.255.255.0

Router R1 has been configured with the commands rout er eigrp 9 and network 172.16.2.0 0.0.0.255, with no other current EIGRP configuration. R1‘s (working) Fa0/0 interface has been configured with IP address 172.16.2.2/26. R1 has found three EIGRP neighbors reachable via interface Fa0/0, including the rou ter with IP address 172.16.2.20. When the engineer attempts to add the neighbor 172.16.2.20 fa0/0 command in EIGRP configuration mode.Which of the following occurs？（）

A.Fa0/0 fails

B.The command is rejecteD

C.The existing three neighbors fail

D.The neighborship with 172.16.2.20 fails and then reestablishes

E.None of the other answers is correct

Which three of the following protocols will be forwarded to a host specified by the ip helper - address interface configuration command if the configuration has not been modified by the ip forward - protocol udp global con figuration command?（）

A. BOOTP

B. TFTP

C. ARP

D. DNS

E. proxy - ARP

F. FTP

Refer to the exhibit. OSPF has been configured on all routers in the network. However, router R1 does not receive a default route to router R2 as in tended. Which configuration change would ensure that R1 would receive a default route from R2? （）

A. Add the area 1 stub command on routers R1.

B. Add the always keyword to the default - information originate configuration command on router R2.

C. Remov e the default information originate configuration command from router R2 and place it on router R1.

D. Add the ip route 5.0.0.0 255.255.255.0 0.0.0.0 command to router R2.

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

A. OSPF works on F0/0 and S0/0/0 without further configuration

B. OSPF works with the addition of one command: a no shutdown command in OSPF router configur ation modE

C. OSPF works with the addition of one command: an router - id command in OSPF router configuration modE

D. OSPFv3 needs at least two more configuration commands before it works on R1

A Cisco router has been configured, and the copy running-config startup-config command has been issued. When the router is power cycled, the router prompts with:"Would you like to enter the initial configuration dialog? [yes/no]"Why has this occurred?（）

A. There is an error in the router DRAM.

B. Te IOS image is corrupt.

C. The configuration register is set to 0x2142.

D. The TFTP server that contains the router configuration file is unreachable.

E. A boot system configuration command has placed the router into setup mode.

A.This command should be executed from the global configuration mode

B.The IP address 10.121.16.8 is the local router port used to forward data

C.102 is the remote DLCI that will receive the information

D.This command is required for all Frame Relay configurations

E.The broadcast option allows packets, such as RIP updates, to be forwarded across the PVC