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CCNP SP english WARISSON GOMES > BPG 3.0 > Flashcards

BPG 3.0 Flashcards

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1
Q

Q

A

A

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2
Q

Which feature is equivalent to soft configuration inbound?

A

route refresh

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3
Q

What is the difference between route-refresh and soft reconfiguration inbound?

A

soft reconfiguration creates a database per neighbor, route refresh does not

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4
Q

Feature that allows informing the neighbor which prefixes will be filtered so that these prefixes are not sent

A

Outbound route filter neighbor 10.0.255.9 capability orf prefix-list both

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5
Q

Consider a router without a peer group with 150k routes and 3 peers, how many NRLI should be generated?

A

450k

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6
Q

Feature that allows neighbors with the same outbound policies to be grouped automatically.

A

dynamic groups

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7
Q

A neighbor can only inherit configurations directly from one session template but indirectly from up to 7

A

true

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8
Q

A session template will inherit configurations from only other N session templates

A

false, a session template inherits configurations from only one other session template

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9
Q

A policy template will inherit configurations from only other N policy templates

A

true

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10
Q

A route received in an RR from an RR Client will be announced to other RR Clients and to other iBGP peers

A

true

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11
Q

A route received in an RR from an iBGP Peer will be announced to other RR Clients and to other iBGP peers

A

false, it will be announced to other RR Clients but not to other iBGP peers

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12
Q

In a confed scenario, the next_hop attribute is changed when a prefix is announced between SubASes

A

false, it is not modified

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13
Q

In a confed scenario, the local_pref attribute is maintained when a prefix is announced between SubASes

A

true

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14
Q

In a confed scenario, the med attribute is maintained when a prefix is announced between SubASes

A

true

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15
Q

The AS_CONFED_SEQUENCE attribute is equivalent to which other attribute?

A

AS Path

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16
Q

The shorter AS_CONFED_SEQUENCE influences the choice of the best path within a Confed AS

A

false

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17
Q

Within which option of the TCP header does the MD5 hash of the BGP update go?

A

option 19

18
Q

MD5 hash also is calculated over IP and TCP headers, BGP authentication will work over devices performing Network Address Translation (NAT) or Port Address Translation (PAT)

A

false, will not work

19
Q

Whenever a password is configured, BGP sessions must be restarted

A

false, if the password configuration is done on both sides within the 180-sec window, there is no need to restart.

20
Q

In which method RTBH source or destination is uRPF combined with blackhole?

A

source

21
Q

Which feature is used to reduce processing caused by unstable routes

A

route flap dampening

22
Q

Which parameter of route dampening refers to the time interval in which the penalty falls by half?

A

half-life, 15 min

23
Q

Which parameter of route dampening limits the point at which the route becomes suppressed?

A

Suppress limit, 2000

24
Q

What is the default interval for BGP keepalives

A

60 secs

25
Q

What is the interval between BGP scan executions

A

60 secs

26
Q

What is the advertisement timer for eBGP and iBGP neighbors?

A

30 secs and 0

27
Q

even if the IP routing table indicates that the neighbor is no longer reachable, BGP will not trigger the convergence process until the BGP session hold-down timer expires.

A

true

28
Q

BGP convergence can also be improved to some extent by configuring a larger scan time interval for the BGP scanner process, configuring a larger advertisement interval between BGP neighbors, configuring smaller keepalive and hold-down timers.

A

false. BGP convergence can also be improved to some extent by configuring a smaller scan time interval for the BGP scanner process, configuring a smaller advertisement interval between BGP neighbors, configuring smaller keepalive and hold-down timers.

29
Q

Complete: ___________ is an optimization technique available on Cisco ____ Software platforms. characteristics: Supported on Cisco _____ Software only, splits BGP functionality into three process types with several instances: BGP process manager (one instance) BGP RIB process (one instance per address family) BGP speaker process (up to 15 instances) Used to reduce the impact that a fault in one address family has on another address family Must be enabled

A

Distributed BGP, IOS XR

30
Q

Distributed BGP is used to reduce the impact that a fault in one address family has on another address family,

A

true

31
Q

____ ______ is a method for maximizing the use of available bandwidth in the network between the endpoints of a TCP connection.

A

PMTU discovery

32
Q

The default TCP MSS for BGP traffic is____ bytes. Enabling path MTU discovery, and thus using a higher MSS for BGP traffic, can improve BGP convergence because____ packets are required to send BGP updates.

A

536, fewer

33
Q

The default input hold queue is platform-dependent and is __ on Cisco IOS Software platforms and____ on Cisco IOS XE Software platforms. Setting the length of an interface to 1000 will normally resolve problems that are caused by input queue drops of TCP ACKs.

A

75, 375

34
Q

What command increases the size of the input queue to avoid drops during BGP update exchanges?

A

R2(config-if)#hold-queue 1000 in

35
Q

BGP dynamic neighbors are configured using a range of IP addresses and BGP peer templates.

A

False. BGP dynamic neighbors are configured using a range of IP addresses and BGP peer group.

36
Q

Commands that configure dynamic peers, limited to 200 peers, and for a range of 172.16.0.0/24

A

bgp listen limit 200 bgp listen range 172.16.0.0/24 peer-group IX-PEERS

37
Q

Origin code: Egp > igp > incomplete

A

False Igp > egp > incomplete Na pratica igp > incomplete

38
Q

Feature that allows installing two or more routes as best in the BGP table

A

Bgp multi path

39
Q

Bgp multipath by default does not consider prefixes from different ASNs as eligible for multipath

A

true

40
Q

Bgp add path is a capability

A

true

41
Q

Bgp multi path allows a route reflector to announce two or more routes

A

false, that is the add path

CCNP SP english WARISSON GOMES (41 decks)

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