From: anthony.sequeira@thomson.com
Date: Mon Feb 19 2007 - 12:36:27 ART
LAST WEEK'S ANSWER:
Answer: c, d
Topic Domain: 3b
Issues:
How is NTP authentication configured? Are these configurations shown
valid?
Solutions:
This exhibit shows the correct configuration of an NTP server/client
relationship, with authentication added for enhanced security. Note that
in this configuration, R2 is the client and will have its time
synchronized from R1. Also note that with NTP authentication, the client
initiates the security mechanism.
More Information:
Setting Time and Calendar Services
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/
ffun_c/fcfprt3/fcf012.htm#wp1001075
LAST WEEK'S QUESTION:
3-11-1. Examine the router configurations displayed in Exhibit 1. Which
statements regarding these configurations are correct? Choose all that
apply.
a. Authentication is not configured properly as the ntp trusted-key
command is missing from R1
b. R1 can synchronize R2, and R2 can synchronize R1
c. R2 will feature a stratum value of 2
d. With NTP, the client initiates authentication
Exhibit 1
R1
clock set 13:00:00 15 Nov 2020
ntp master 1
ntp authentication-key 1 md5 MYSECRETKEY
R2
clock set 13:00:00 15 Nov 2020
ntp authenticate
ntp authentication-key 1 md5 MYSECRETKEY
ntp trusted-key 1
ntp server 10.10.10.1 key 1
THIS WEEK'S QUESTION:
3-11-2. Examine the configurations shown in Exhibit 1. R1 and R2 are not
forming an EIGRPv6 adjacency. You have confirmed the link between them
is in the UP/UP state. What is the most likely issue?
a. The Router IDs configured on the devices are in an invalid format
b. The IPv6 addresses of the interfaces must be in the Modified-EUI
format
c. Your platform does not fully support EIGRPv6
d. You must use the no shutdown command under router configuration mode
Exhibit 1
R1
ipv6 unicast-routing
!
ipv6 router eigrp 100
router-id 0.0.0.1
!
interface serial 0/0/1
ipv6 address 12::1/64
ipv6 eigrp 100
R2
ipv6 unicast-routing
!
ipv6 router eigrp 100
router-id 0.0.0.2
!
interface serial 0/0/1
ipv6 address 12::2/64
ipv6 eigrp 100
Question of the Week Compliments of:
TESTiT
http://www.netmasterclass.com/site/written.php
This archive was generated by hypermail 2.1.4 : Thu Mar 01 2007 - 07:38:47 ART