BGP (ENCOR, CCNP Quiz)

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Which of these is a valid eBGP configuration?

router bgp 200
neighbor 12.12.12.2 remote-as 200

router bgp 200
neighbor 12.12.12.2 remote-as 100

router bgp 100
neighbor 12.12.12.2 local-as 200

router bgp 100
neighbor 12.12.12.2 remote-as 100

Which of these protocols can NOT be used within one AS?

eBGP

IS-IS

iBGP

OSPF

If all BGP metrics are equal for a route then what is the final Tie breaker?

NEIGHBOR IP

AS_PATH

WEIGHT

LOCAL_PREF

Peering with CE (Customer Edge) Routers is done on which type of MPLS ISP Routers?

LSR (Label Switch Router)

PE (Provider Edge Router)

Special Router

IP (Provider Router)

Which route has been selected as best valid by BGP out of these two?

R2#show ip bgp
..
Network Next Hop Metric LocPrf Weight Path
* 7.7.7.7/32 24.24.24.4 0 400 700 i
*> 23.23.23.3 0 300 700 i

BGP Path via AS 1

BGP Path via AS 23

BGP Path via AS 300

BGP Path via AS 400

Which type of attribute must be recognized by all the BGP implementations?

UNKNOWN

WELL KNOWN

TRANSITIVE

OPTIONAL

Will the iBGP neighborship be formed between R1 and R2 in this kind of network?

YES

Which Port is used by BGP for its communication?

TCP Port 179

TCP Port 99

TCP Port 79

UDP Port 179

LOCAL-PREF is used to choose the exit path for an AS:

TRUE

FALSE

What is the default value of BGP Local Preference?

100