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单选题
In which state can BGP peers exchange Update messages？（）
A
Active
B
OpenSent
C
OpenConfirm
D
Established
E
Idle
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You receive an EBGP route configured with the no－export community set.To which types of peers can you send this route?() (Choose two.)
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When implementing BGP confederations, which configuration command establishes the globally unique AS number used with external peers outside your network?()
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Which type of connection must be established before BGP peers can exchange update messages?()
A.SSLB.UDPC.TCPD.SSH
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By default, routes learned via IBGP will be announced to which peers?()
A. IBGP peersB. EBGP peersC. active BGP peersD. established BGP peers
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Which one of the following statements about BGP is FALSE?()
A. BGP uses TCP port 179.B. BGP ensures reliability of updates by using the reliable transport services of TCP.C. The network command with the mask option never insta lls a prefix into the BGP table unless there is a matching prefix exists in the IP route table.D. A TCP connection is required before exchanging updates.E. BGPuses notification and the update messages to establish and maintain the BGP neighbor relati onship.
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For the accompanying router output, which of the following statements describes the stat e that neighbor 172.16.254.3 is in?()
A. The router will not accept connections from the peer.B. BGP can exchange routing information in this state.C. The router is listening on its server port for connection requests from the peer.D. The router ha s sent out an active TCP connection request to the peer.
考题
Which BGP community is used to prevent the advertisement of the BGP prefix to other BGP peers？（）A、additiveB、noneC、no-exportD、no-advertiseE、local-as
考题
In which state can BGP peers exchange Update messages？（）A、ActiveB、OpenSentC、OpenConfirmD、EstablishedE、Idle
考题
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Which description of BGP authentication is true？（）A、MD5 has been used by BGP to encrypt BGP update packets.B、BGP uses a message-digest algorithm to authenticate BGP peersC、A plain-text password authentication is an option of BGP authenticationD、EBGP peers authentication is faster than IBGP peers authenticationE、BGP uses public key and private key to authenticate BGP peers.
考题
When implementing BGP confederations, which configuration command establishes the globally unique AS number used with external peers outside your network?（）A、bgp confederation asB、bgp confederation systemC、bgp confederation remote-asD、bgp confederation identifier
考题
You receive an EBGP route configured with the no-export community set.To which types of peers can you send this route?（） (Choose two.)A、no BGP peersB、all I-BGP peersC、all E-BGP peers within your global ASD、all E-BGP peers outside your global AS
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Which three commands allow you to verify the current state of your BGP neighbors?（）A、show bgp groupB、show bgp statusC、show bgp summaryD、show bgp neighborE、show protocols bgp
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Which choice describes the JUNOS software default policy action for BGP routes？（）A、IBGP peersB、EBGP peersC、Active BGP peersD、Established BGP peers
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单选题By default, routes learned via IBGP will be announced to which peers?（）A
IBGP peersB
EBGP peersC
active BGP peersD
established BGP peers
考题
单选题Which BGP community is used to prevent the advertisement of the BGP prefix to other BGP peers？（）A
additiveB
noneC
no-exportD
no-advertiseE
local-as
考题
单选题Which type of connection must be established before BGP peers can exchange update messages?（）A
SSLB
UDPC
TCPD
SSH
考题
单选题In BGP graceful restart， how does a peer router indicate the end of a route exchange？（）A
An open message with the E bit set.B
An update message with the E bit set.C
An open message with an end-of-RIB marker.D
An update message with an end-of-RIB marker.
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多选题Which three commands allow you to verify the current state of your BGP neighbors?（）Ashow bgp groupBshow bgp statusCshow bgp summaryDshow bgp neighborEshow protocols bgp
考题
单选题Which description of BGP authentication is true？（）A
MD5 has been used by BGP to encrypt BGP update packets.B
BGP uses a message-digest algorithm to authenticate BGP peersC
A plain-text password authentication is an option of BGP authenticationD
EBGP peers authentication is faster than IBGP peers authenticationE
BGP uses public key and private key to authenticate BGP peers.
考题
单选题By default, to which peers will a BGP router advertise routes learned from IBGP peers?（）A
all BGP peersB
all IBGP peersC
all EBGP peersD
all MBGP peers
考题
单选题Which message is used to transport routing information between BGP peers?（）A
OpenB
ActiveC
UpdateD
Keepalive
考题
多选题Which two statements are true regarding EBGP and Confederation BGP?（） (Choose two.)AEBGP peers advertise MED and change Next Hop.BEBGP peers advertise Local Preference and do NOT change Next Hop.CConfederation BGP peers advertise MED and do NOT change Next Hop.DConfederation BGP peers advertise Local Preference and change Next Hop.
考题
多选题Which two statements about SA caching are true？（）ACaching allows pacing of MSDP messages.BCaching reduces join latency.CCaching should not be done by an MSDP speaker.DCaching is used to update the BGP MDT address family.
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