Router R1 has been configured with the commands router 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 router 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?

Which of the following settings could prevent two potential EIGRP neighbors from becoming
neighbors? (Choose two answers.)

An engineer has added the following configuration snippet to an implementation planning
document. The configuration will be added to Router R1, whose Fa0/0 interface connects to
a LAN to which Routers R2 and R3 also connect. R2 and R3 are already EIGRP neighbors
with each other. Assuming the snippet shows all commands on R1 related to EIGRP
authentication, which answer lists an appropriate comment to be made during the
implementation plan peer review?
key chain fred

key 3
key-string whehew
interface fa0/0
ip authentication key-chain eigrp 9 fred

Which of the following are methods EIGRP uses to initially populate (seed) its EIGRP
topology table, before learning topology data from neighbors? (Choose two.)

Which of the following are both advertised by EIGRP in the Update message and included in
the formula for calculating the integer EIGRP metric? (Choose two.)

Router R1 uses S0/0 to connect via a T/1 to the Frame Relay servicE. Five PVCs terminate
on the serial link. Three PVCs (101, 102, and 103) are configured on subinterface
S0/0.1, and one each (104 and 105) are on S0/0.2 and S0/0.3. The configuration shows no
configuration related to EIGRP WAN bandwidth control, and the bandwidth command is not
configured at all. Which of the following is true about how IOS tries to limit EIGRP’s use of
bandwidth on S0/0?

The output of show ip eigrp topology on Router R1 shows the following output, which is all
the output related to subnet 10.11.1.0/24. How many feasible successor routes does R1
have for 10.11.1.0/24?
P 10.11.1.0/24, 2 successors, FD is 2172419

via 10.1.1.2 (2172423/28167), Serial0/0/0.1
via 10.1.1.6 (2172423/28167), Serial0/0/0.2

A network design shows that R1 has four different possible paths from itself to the Data
Center subnets. Which of the following can influence which of those routes become feasible
successor routes, assuming that you follow the Cisco recommended practice of not
changing metric weights? (Choose two.)

Router R1 is three router hops away from subnet 10.1.1.0/24. According to various show
interfaces commands, all three links between R1 and 10.1.1.0/24 use the following settings:

bandwidth: 1000, 500, 100000 and delay: 12000, 8000, 100. Which of the following answers
correctly identifies a value that feeds into the EIGRP metric calculation? (Choose two correct
answers.)

Routers R1 and R2 are EIGRP neighbors. R1 has been configured with the eigrp stub
connected command. Which of the following is true as a result? (Choose two correct
answers.)