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What is not a difference between VPN tunnel authentication a

题目
单选题
What is not a difference between VPN tunnel authentication and per-user authentication?（）
A

VPN tunnel authentication is part of the IKE specification. 

B

VPN tunnel authentication does not control which end user can use the IPSec SA (VPN tunnel).

C

User authentication is used to control access for a specific user ID, and can be used with or without a VPN tunnel for network access authorization. 

D

802.1X with EAP-TLS (X.509 certificates) can be used to authenticate an IPSec tunnel.

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相似问题和答案

第1题：

What is not a difference between VPN tunnel authentication and per-user authentication?（）

  • A、VPN tunnel authentication is part of the IKE specification. 
  • B、VPN tunnel authentication does not control which end user can use the IPSec SA (VPN tunnel).
  • C、User authentication is used to control access for a specific user ID, and can be used with or without a VPN tunnel for network access authorization. 
  • D、802.1X with EAP-TLS (X.509 certificates) can be used to authenticate an IPSec tunnel.

正确答案:D

第2题：

Which three security concerns can be addressed by a tunnel mode IPsec VPN secured by ESP?（） (Choose three.)

  • A、data integrity
  • B、data confidentiality
  • C、data authentication
  • D、outer IP header confidentiality
  • E、outer IP header authentication

正确答案:A,B,C

第3题：

The real difference between plants and animals ____ what they do, and not in what they seem to be.

A: lies in

B: lies with

C: lies down

D: lies up


参考答案：A

第4题：

What does the command show | compare rollback 1 display?（）

  • A、the difference between the current candidate configuration and the candidate configuration from one commit ago
  • B、the difference between the current active configuration and the current candidate configuration
  • C、the difference between the current active configuration and the active configuration from one commit ago
  • D、the difference between the current candidate configuration and the archived configuration from one commit ago

正确答案:D

第5题：

What is difference between OSPF neighbor and adjacencies？


正确答案: Neighbor：
A neighbor is another OSPF router that is attached to the local router’s directly connected links， and ospf hello packet sended by the router have consistance parameter （such as hello time，dead time，area ID， mask and so on） with each other.
Adjacency：
An OSPF adjacency is a conceptual link to a neighbor over which LSAs can be sent.

第6题：

What does the command show | compare rollback 1 display?（）

  • A、the difference between the current candidate configuration and the candidate configuration from one commit ago
  • B、the difference etween the current active configuration and the active configuration from the one commit ago
  • C、the difference between the current active configuration and the active configuration from one commit ago
  • D、the difference between the current candidate configuration and the archived configuration from one commit ago

正确答案:D

第7题：

Which of these statements best describes the major difference between an IPv4-compatible tunnel and a 6to4 tunnel？ （）

  • A、 An IPv4-compatible tunnel is a static tunnel， but an 6to4 tunnel is a semiautomatic tunnel.
  • B、 The deployment of a IPv4-compatible tunnel requires a special code on the edge routers， but a 6to4 tunnel does not require any special code.
  • C、 An IPv4-compatible tunnel is typically used only between two IPv6 domains， but a 6to4 tunnel is used to connect to connect two or more IPv6 domains.
  • D、 For an IPv4-compatible tunnel， the ISP assigns only IPv4 addresses for each domain， but for a 6to4 tunnel， the ISP assigns only IPv6 addresses for each domain.

正确答案:C

第8题：

what is the difference between the HSRP and VRRP？


正确答案: （1）VRRP is an IEEE standard （RFC 2338） for router redundancy； HSRP is a Cisco proprietary protocol.
（2）VRRP allows actual router IP address to be the same with the virtual IP，and if the same the router which get the IP will become Master router of the VRRP group；HSRP do not allow actual router IP address to be the same with the virtual IP.
（3）HSRP uses the multicast address 224.0.0.2 which represent all router in the subnet ， while VRRP uses the multicast address 224.0.0.18；HSRP uses UDP port 1985 while VRRP uses a protocol number of 112.
（4）HSRP may have one active router，one standby router，multiple listening router.While VRRP may have one master router，multiple backup router.
（5）HSRP exchange three kinds of message， hello message，coup message ，resign message. VRRP exchange only one kind of message， advertisement message.
（6）In VRRP，preempt is enable by default.But in HSRP preemt is disable by default.

第9题：

Which three security concerns can be addressed by a tunnel mode IPsec VPN secured by ESP？（）

  • A、data integrity
  • B、data confidentiality
  • C、data authentication
  • D、outer IP header confidentiality
  • E、outer IP header authentication

正确答案:A,B,C

第10题：

our company has a main office and 15 branch offices. The company has a single active directory domain. All servers run windows server 2008.You need to ensure that the VPN connections between the office and the branch offices meet the following requirements:All data must be encrypted by using end-to-end encryption.The vpn connection must use computer-level authentication.User names and passwords cannot be used for authentication.What should do?（）

  • A、Configure an ipsec connection to use tunnel mode and preshared key authentication.
  • B、Configure a PPTP connection to use version 2 of the MS-CHAP v2 authentication.
  • C、Configure a L2TP/IPsec connection to use the EAP-TLS authentication.
  • D、Configure a L2TP/IPsec connection to use version 2 of the MS-CHAP v2 authentication.

正确答案:C

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