What are three common reasons why customers are saying that they need to evolve their data center？ （）

A.x.509certificate

B.generictokencard

C.presharedkey

D.ProtectedAccessCredential

A.cisco SMARTnet service

B.cisco captial financing

C.cisco smart business roadmap

D.cisco network optimization service

A.enableconcatenationonthenon-rootbridgeonly

B.enableconcatenationontherootbridgeonly

C.enableconcatenationonboththerootbridgeandnon-rootbridge

D.enableconcatenationontherootbridgeandsetitasdesirableonthenon-rootbridge

E.setconcatenationasdesirableontherootbridgeandenableitonthenon-rootbridge

A. A router connected to the fastethemet 1/4 interface will be able to communicate with hosts connected to interface fastethemet 1/1,1/2, and 1/3.

B. A router connected to the fastethemet 1/4 interface will not be able to communicate with the host connected to interface fastethemet 1/3.

C. Hosts connected to interface fastethemet 1/1 and 1/2 can communicate with each other.

D. Hosts connected to interface fastethemet 1/1,1/2, and 1/3 can communicate with each other.

tion that can be used across very long distances, provides QoS and VPN support, and is sensitive to their budgeting needs , which WAN technology would you recommend?（）

A.MPLS

B.framerelay

C.leaseDline

D.metroethernet

E.widetransport

A.20km[12.4miles]

B.10km[6.2miles]

C.5km[3.1miles]

D.25km[15.5miles]

E.15km[9.3miles]

A. Do not fragment has been configured on PE11.

B. MPLS has been disabled on routers P11 and P12.

C. An access list has been created on P11 to block traceroutes from PE11.

D. The no mpls ip propgate-ttl local command has been configured on PE11

E. ICMP has been disabled on the intermediary routers between PE11 and PE12.

A.Cisco-LEAP，EAP-FAST，EAP-PEAP（GTC），EAP-TLS

B.Cisco-LEAP，EAP-PSK，EAP-PEAP（MS-CHAPv2），EAP-TLS

C.Cisco-LEAP，EAP-FAST，EAP-PEAP（MS-CHAPv2），EAP-TTLS

D.Cisco-LEAP，EAP-MD5，EAP-PEAP（GTC），EAP-TTLS

A. ssh

B. connect

C. login

D. session

A.five

B.three

C.six

D.four