多项选择题Which three statements about MPLS traffic engineering (MPLS TE) are true? ()

A.MPLS TE supports admission control
B.MPLS TE tunnel traffic is a link attribute to compute the TE tunnel path
C.MPLS TE uses BGP extension to advertise link attributes
D.MPLS TE provides protection capability
E.MPLS TE uses RSVP to establish LSP


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1.多项选择题Which three are advantages of SONET?()

A.Allows the transportation of all forms of traffic
B.Multiplexing is easy
C.Clocks do not need to be synchronized
D.Reduces network complexity and cost
E.Padding is not necessary and not permitted

2.单项选择题Which statement about the use of Route Target Rewrite is true?()

A.It is mainly used in Intra-AS MPLS VPLS deployments and is configured at the ASBR to avoid misconfiguration of the Route Target assignment for VPN configurations
B.It is mainly used in Inter-AS MPLS VPN deployments and is configured at the ASBR to avoid misconfiguration of the Route Target assignment for VPN configurations
C.It is mainly used in Intra-AS MPLS VPLS deployments and is configured at the Router Reflectorto avoid misconfiguration in Route Target assignment for VPN configurations
D.It is mainly used in Inter-AS MPLS VPLS deployments and is configured at the Router Reflectorto avoid misconfiguration of the Route Target assignment for VPN configurations
E.It is mainly used in Inter-AS MPLS VPLS deployments and is configured at the PE router to avoid to misconfiguration of the Route Target assignment for VPN configurations

3.单项选择题What is the BGP synchronization rule?()

A.Routing information received through an IBGP session is not forwarded to another IBGP neighbor, onlyto EBGP neighbors
B.Routing information received through an EBGP session is not forwarded to another EBGP neighbor,only to IBGP neighbors
C.BGP neighbor peerings are established and sychronized using the TCP 3-way handshake
D.BGP shall not advertise a route until that route has been learned via an IGP also

4.多项选择题Which two statements about 10 Gigabit Ethernet (10GE) are true?()

A.10 Gigabit Ethernet does not support VLAN definition
B.10 Gigabit Ethernet supports full duplex links, but does not support half duplex links
C.10 Gigabit Ethernet supports unshielded or shielded twisted-pair cable connections
D.10 Gigabit Ethernet supports Carrier Sense Multiple Access with Collision Detection (CSMA/CD)
E.10 Gigabit Ethernet supports optical fiber connections in single mode only. Mufti mode is not supported

5.多项选择题In the Carrier Supporting Carrier (CsC) feature, which two protocols run between CSC-PE and CSC-CE().

A.IGP and RSVP
B.EBGPv4 with a sending community
C.IGP and EBGPv4
D.IGP and LDP
E.EBGPv4 with a sending label

7.多项选择题All secure domain routers (SDRs) have shared attribute and resources. Which three resources are sharedall SDRs? ()

A.privilege-level configuration
B.fabric cards
C.SNMP traps
D.admin- level configuration
E.exec- level configuration

8.单项选择题Which statement about VPLS is true?()

A.All CE devices emulate a bridge
B.All provider devices emulate a bridge
C.Hierarchical VPLS reduces signaling overhead
D.Each PE device emulates a bridge
E.Each CE device emulates a bridge

10.单项选择题Which statement is FALSE concerning Concatenation?()

A.It allows ITCM to send multiple upstream packets in one single large burst.
B.It reduces upstream data throughput.
C.It can be enabled/disabled from CMTS on per upstream port basis if desired
D.Concatenation activity on an interface can be checked by the show controller counters command