The following output occurs on Router R1. Which of the following cannot be determined from
this output?
R1# show ip route 180.1.1.0 255.255.255.240
Routing entry for 180.1.1.0/28
Known via “bgp 2”, distance 20, metric 0
Tag 3, type external
Last update from 192.168.1.2 00:10:27 ago
Routing Descriptor Blocks:
* 192.168.1.2, from 192.168.1.2, 00:10:27 ago
Route metric is 0, traffic share count is 1
AS Hops 2
Route tag 3

The following line of output was extracted from the output of the show ip bgp command on
Router R1. Which of the following can be determined from this output?
Network Next Hop Metric LocPrf Weight Path
* 130.1.1.0/28 1.1.1.1 0 1 2 3 4 i

Router R1 has eBGP connections to I1 and I2, routers at the same ISP. The company that
owns R1 can use public address range 130.1.16.0/20. The following output lists all the IP
routes in R1’s routing table within this rangE. Which of the following answers would cause
R1 to advertise the 130.1.16.0/20 prefix to its eBGP peers? (You should assume default
settings for any parameters not mentioned in this question.)
R1# show ip route 130.1.16.0 255.255.240.0 longer-prefixes
! lines omitteD…
O 130.1.16.0/24 [110/3] via 10.5.1.1, 00:14:36, FastEthernet0/1
O 130.1.17.0/24 [110/3] via 10.5.1.1, 00:14:36, FastEthernet0/1
O 130.1.18.0/24 [110/3] via 10.5.1.1, 00:14:36, FastEthernet0/1

R1 in ASN 1 with loopback1 address 1.1.1.1 needs to be configured with an iBGP
connection to R2 with loopback2 IP address 2.2.2.2. The connection should use the
loopbacks. Which of the following commands is required on R1?

The following output occurred as a result of the show ip bgp command on Router
R1. The output shows all BGP table entries on R1. How many iBGP-learned routes exist on
this router?
*>i181.0.0.0/8 10.100.1.1 0 100 0 1 2 111 112 i
*>i182.0.0.0/8 10.100.1.1 0 100 0 1 2 222 i
*>i183.0.0.0/8 10.100.1.1 0 100 0 1 2 i
*>i184.0.0.0/8 10.100.1.1 0 100 0 1 2 i
*> 192.135.250.0/28 192.168.1.6 0 3 4 i

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? (Choose 2)
R1# show ip bgp 190.1.0.0/16
BGP routing table entry for 190.1.0.0/16, version 121
Paths: (1 available, best #1, table Default-IP-Routing-Table)
Advertised to update-groups:
1
1 2 3 4
1.1.1.1 from 2.2.2.2 (3.3.3.3)
Origin IGP, metric 0, localpref 100, valid, internal, best

A company uses Routers R1 and R2 to connect to ISP1 and ISP2, respectively, with
Routers I1 and I2 used at the ISPs. R1 peers with I1 and R2; R2 peers with I2 and R1.
Assuming as many default settings as possible are used on all four routers, which of the
following is true about the next-hop IP address for routes R1 learns over its iBGP connection
to R2?

A company uses Routers R1 and R2 to connect to ISP1 and ISP2, respectively, with Routers
I1 and I2 used at the ISPs. R1 peers with I1 and R2; R2 peers with I2 and R1. R1 and R2 do
not share a common subnet, relying on other routers internal to the Enterprise for IP
connectivity between the two routers. Which of the following could be used to prevent
potential routing loops in this design? (Choose 2)

R1 is currently advertising prefixes 1.0.0.0/8, 2.0.0.0/8, and 3.0.0.0/8 over its eBGP
connection to neighbor 2.2.2.2 (R2). An engineer configures a prefix list (fred) on R1 that
permits only 2.0.0.0/8 and then enables the filter with the neighbor R2 prefix-list fred out
command. Upon exiting configuration mode, the engineer uses some show commands on
R1, but no other commands. Which of the following is true in this case?

Which of the following three BGP filtering methods enabled with the neighbor command will
filter BGP prefixes based on the prefix and prefix length? (Choose 3)