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单选题What is the function of L2TP？（）A It allows L2F tunnels across the network.B It allows GRE tunnels across the network.C It allows PPTP tunnels across the network.D It allows PPP to be tunneled across a network

题目
单选题
What is the function of L2TP？（）
A

It allows L2F tunnels across the network.

B

It allows GRE tunnels across the network.

C

It allows PPTP tunnels across the network.

D

It allows PPP to be tunneled across a network

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相似问题和答案

第1题：

What is the function of L2TP?()

A.It allows L2F tunnels across the network.

B.It allows GRE tunnels across the network.

C.It allows PPTP tunnels across the network.

D.It allows PPP to be tunneled across a network


参考答案：D

第2题：

A virtual storage area network (VSAN) is a collection of ports from a set of connected Fibre Channel switches, that form a virtual fabric. Which technology allows centralized storage services to be shared across different VSANs?（）

A.IVR

B.FSPF

C.FICON

D.SANTap


参考答案：A

第3题：

Which one of the following protocols allows the information about the configuration of a new VLAN to be distributed across entire switched network?

A. STP

B. VTP

C. EIGRP

D. SNMP

E. CDP

F. None of the above


正确答案：B
B 解析：Explanation:
Sybex CCNA Study Guide 4th Edition states on page 359:
"The basic goals of VLAN Trunking Protocol (VTP) are to manage all configured VLANs across a switched internetwork and to maintain consistency throughout that network. VTP allows an administrator to add, delete, and rename VLANs-information that is then propagated to all other switches in the VTP domain."

Incorrect Answers:
A. STP is the Spanning Tree Protocol, used to prevent bridging loops in a LAN.

C. EIGRP is a routing protocol used to exchange routing information, not VLAN information.

D. SNMP is the Simple Network Management Protocol, used to provide information to remote network management stations.

E. CDP is the Cisco Discovery Protocol, which is used to exchange information between Cisco devices. It can only be used between Cisco routers and switches.

第4题：

Which statement about L2VPN Pseudowire Switching is not true？（）

  • A、L2VPN Pseudowire Switching allows the user to extend L2VPN Pseudowires across an inter-AS boundary
  • B、L2VPN Pseudowire Switching allows the user to extend L2VPN Pseudowires across two separate MPLS networks
  • C、Quality of service is not supported per Pseudowire
  • D、L2VPN Pseudowire Switching connects two or more contiguous Pseudowires segments to from an end-to-end multihop Pseudowire
  • E、The Cisco MPLS Traffic Engineering tunnel selection is not supported

正确答案:E

第5题：

A virtual storage area network (VSAN) is a collection of ports from a set of connected Fibre Channel switches, that form a virtual fabric. Which technology allows centralized storage services to be shared across different VSANs?（）

  • A、IVR
  • B、FSPF
  • C、FICON
  • D、SANTap

正确答案:A

第6题：

Which technology allows centralized storage services to be shared across different VSANs?()

A.IVR

B.FSPF

C.FICON

D.SANTap


参考答案：A

第7题：

What are two benefits of using VTP in a switching environment?()

A.It allows switches to read frame tags.

B.It allows ports to be assigned to VLANs automatically.

C.It maintains VLAN consistency across a switched network.

D.It allows frames from multiple VLANs to use a single interface.

E.It allows VLAN information to be automatically propagated throughout the switching environment.


参考答案：C, E

第8题：

What is the functionality of L2TP in a BRAS environment?()

A.It tunnels DHCP requests to the LNS.

B.It provides access for analog modem users.

C.It provides RFC 2547 VPN services to the user.

D.It tunnels a PPP session across an IP backbone.


参考答案：D

第9题：

Which one of the following protocols allows the information about the configuration of a new VLAN to be distributed across entire switched network?（）

  • A、STP
  • B、VTP
  • C、EIGRP
  • D、SNMP
  • E、CDP
  • F、None of the above

正确答案:B

第10题：

What are two benefits of using VTP in a switching environment?（）

  • A、It allows switches to read frame tags.
  • B、It allows ports to be assigned to VLANs automatically.
  • C、It maintains VLAN consistency across a switched network.
  • D、It allows frames from multiple VLANs to use a single interface.
  • E、It allows VLAN information to be automatically propagated throughout the switching environment.

正确答案:C,E

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