单选题Which IS-IS authentication method is supported on the ERX Edge Router?（）A simple passwordB HMAC message digest 5C Password Authentication ProtocolD Challenge Handshake Authentication Protocol

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第3题：

Which information is contained in a AAA authentication method list?（）

• A、A pointer to the address where a RADIUS server can be located
• B、A sequential list of user authentication methods
• C、A description of what a user can execute on a router
• D、The setup for the authentication phase on a router

正确答案:B

第4题：

Which two statements about the open and shared key wireless-authentication methods are true？ （）

• A、 Shared key authentication is considered more secure than open authentication.
• B、 Shared key authentication is considered less secure than open authentication.
• C、 If the WEP keys do not match using the open authentication method， the client will not authenticate， associate， and transfer data.
• D、 If the WEP keys do not match using the open authentication method， the client will still be able to authenticate and associate， but will not transfer data.
• E、 If the WEP keys do not match using the open authentication method， the client will still be able to authenticate， associate， and transfer data.

正确答案:B,D

第5题：

What are the three OSPF authentication methods supported on the ERX Edge Router？（）

• A、 null password
• B、 simple password
• C、 message digest 5
• D、 Password Authentication Protocol
• E、 Challenge Handshake Authentication Protocol

正确答案:A,B,C

第6题：

As an experienced Network Engineer, you are responsible for network connectivity and system configuration. Which of the following protocols will be supported by Cisco Nonstop Forwarding (NSF)?（）

• A、ISSU，OSPF，IS-IS
• B、IETF，OSPF，ISSU
• C、IS-IS，EIGRP，SSO，BGP
• D、EIGRP，BGP，OSPF，IS-IS

正确答案:D

第7题：

Which two external authentication servers are supported for administrative access to a Junos device?（）

• A、RADIUS
• B、LDAP
• C、ACE
• D、TACACS+

正确答案:A,D

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第14题：

The PPP over Ethernet Discovery Stage determines which two parameters? （）(Choose two.)

• A、session ID
• B、authentication server
• C、IP address of the client
• D、MAC address of the ERX router

正确答案:A,D

第15题：

Which of the following statements about authentication responses and conditions is true? （）(Choosetwo.)

• A、When a router receives a failure response, it stops querying authentication methods.
• B、When a router receives an error response, it stops querying authentication methods.
• C、If the router receives a failure response from an authentication method, it queries the next method.
• D、The router does not differentiate between failure and error responses; the authentication process is always interrupted.
• E、If it receives no response from the authentication method, a router will determine the error condition On its own; the router also has the option to proceed to the next method in a list if configured accordingly.

正确答案:A,E

第16题：

Which three authentication options does IS-IS support？（）

• A、MD5
• B、DES
• C、Kerberos
• D、Unauthenticated
• E、Simple password

正确答案:A,D,E

第17题：

Which of the following statements about authentication responses and conditions is true?（）(Choose two.)

• A、When a router receives a failure response, it stops querying authentication methods.
• B、When a router receives an error response, it stops querying authentication methods.
• C、If the router receives a failure response from an authentication method, it queries the next method.
• D、The router does not differentiate between failure and error responses; the authentication process is always interrupted.
• E、If it receives no response from the authentication method, a router will determine the error condition on its own; the router also has the option to proceed to the next method in a list if configured accordingly.

正确答案:A,E

第18题：

Which the HTTP method represents a request for information about the supported methods on an HTTP server？（）

• A、 GET
• B、 INFO
• C、 HEAD
• D、 TRACE
• E、 OPTIONS

正确答案:E

第19题：

Which three user authentication methods are supported by the Junos OS?（）

• A、RADIUS
• B、CHAP
• C、local user database
• D、TACACS+
• E、PAP

正确答案:A,C,D

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