A.the protocol used to determine the authentication method
B.the protocol used to identify the data in the Information field
C.the protocol used to carry the PPP frame
D.the protocol used to decode the FCS field
E.the protocol used to detect the number of padding bytes
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A.TCP port
B.authentication
C.IP DF bit
D.retransmit retries
E.sequencing
F.hostname
A.cluster ID
B.Weight
C.MED
D.local preference
E.aggregate
A.Graceful restart allows session information recovery without disruption to the network.
B.A node can perform a graceful restart to help a neighbor recover its state. The label bindings are kepton state information， which helps the failed node recover faster and does notaffect the current for wardtraffic.
C.Graceful restart allows a node to recover state from its neighbor when there is no RP or before thedevice undergoes SSO.
D.Graceful restart does not allow session information recovery.
E.During a graceful restart， the router removes any stale prefixes after a timer for stale entries expires
A.cell loss priority （CLP）
B.discard eligibility （DE）
C.head error control （HEC）
D.generic flow control （GFC）
E.forward explicit congestion notification （FECN）
A.Layer 2 access link QoS design
B.enterprise-to-service-provider mapping models
C.Layer 3 link access QoS design
D.service provider service level agreements
E.Layer 2 link access load balancing
A.MD5 has been used by BGP to encrypt BGP update packets.
B.BGP uses a message-digest algorithm to authenticate BGP peers
C.A plain-text password authentication is an option of BGP authentication
D.EBGP peers authentication is faster than IBGP peers authentication
E.BGP uses public key and private key to authenticate BGP peers.
A.BE
B.AF41
C.AF21
D.EF
E.AF31
A.The RT is a BGP extended community.
B.The RT is an 8-byte field that is prefixed to an IPv4 address to make it a unique VPNv4 address.
C.When a VPN route that is learned from a CE router is injected into BGP， one or more RTs are associated with it
D.The distribution of VPN routing information is controlled through the use of VPN RTs
E.When a VPN route that is learned from a CE router is injected into BGP， there is always one RT that is associated with it.
A.rooted multipoint EVC （E-Tree）
B.point-to-point EVC （E-Line）
C.point-to-multipoint EVC （E-Tree）
D.hub spoke EVC （E-Tree）
E.multipoint-to-multipoint EVC （E-LAN）
A.OSPF
B.LDP
C.BGP
D.IS-IS
E.RSVP
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In optical transmission systems， chirped lasers are used for the purpose of：（）.
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All secure domain routers （SDRs） have shared attribute and resources. Which three resources are sharedall SDRs？ （）
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Which statement is FALSE concerning Concatenation？（）
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Which configuration prevents traffic that is sourced from the unique local address scope to be sent out ofthe link to the upstream service provider？（）