Which two types of authentication does EIGRP offer? (Choose two)

A. TKIP

B. MD5

C. WPA

D. Plain text BD








 

Suggested Answer: Explanation

The router uses two types of authentication:
"¢ Simple password authentication (also called plain text authentication)""Supported by Integrated System-Integrated System (IS-IS), Open Shortest Path First
(OSPF), and Routing Information Protocol Version 2 (RIPv2)
"¢ MD5 authentication""Supported by OSPF, RIPv2, BGP, and EIGRP
If the service password-encryption command is not used when implementing EIGRP authentication, the key-string will be stored as plain text in the router configuration. If you configure the service password-encryption command, the key-string will be stored and displayed in an encrypted form; when it is displayed, there will be an encryption-type of 7 specified before the encrypted key-string.
EIGRP originally only supported MD5 authentication but since IOS 15.1(2)S and 15.2(1)T we can also use SHA-256 authentication. Nowadays, this form of authentication is far more secure than MD5.
They ask for 2 options. The one that we know MD5 and the must lose to the reality is plain text. However I didn´t find and official article that mentioned plain Text.
The router uses two types of authentication:
"¢ Simple password authentication (also called plain text authentication)""Supported by Integrated System-Integrated System (IS-IS), Open Shortest Path First
(OSPF), and Routing Information Protocol Version 2 (RIPv2)
"¢ MD5 authentication""Supported by OSPF, RIPv2, BGP, and EIGRP
Plaint text is NOT supported in EIGRP.
In EIGRP supported only MD5 and SHA but this is the more acceptable choice

This question is in 300-101 Cisco Implementing Cisco IP Routing (ROUTE) Exam
For getting Cisco Certified Network Professional (CCNP) Routing and Switching Certificate




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