單項選擇題How many messages does internet Key Exchange use to negotiate SA characteristics when running inmain mode？（）

A.3 messages
B.6 messages
C.4 messages
D.2 messages
E.5 messages


您可能感興趣的試卷

你可能感興趣的試題

1.多項選擇題What are three common reasons for ATM CRC errors？（）

A.Incorrect VPI and VCI configuration
B.Noise， gain hits， or other transmission problems on the data link equipment
C.ATM cells are dropped due to incorrect ATM routing in the service provider.
D.A faulty or failing ATM interface.
E.Cells are dropped due to traffic policing in the ATM cloud on one or more virtual circuits attached to theATM interface

3.多項選擇題Which three things are the building blocks of the Cisco VPLS architecture？（）

A.VLAN Trunk Protocol （VTP）
B.State Synchronization Protocol （SSP）
C.L2VPN
D.Ethernet Virtual Switch Interface （VSI）
E.Label Distribution Protocol （LDP）

5.多項選擇題Which tree of these are types of Ethernet Virtue Connections （EVCs） in the MEF concept？（）

A.multipart-to-multipoint EVC （E-LAN）
B.hub spoke EVC （E-Tree）
C.point to point EVC （E-Line）
D.rooted multipoint EVC （E-Tree）
E.point-to-multipoint EVC （E-Tree）

6.多項選擇題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

7.多項選擇題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

8.單項選擇題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

9.單項選擇題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

10.多項選擇題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