In computer security， AAA stands for authentication， authorization and accounting. Which optionabout the AAA authentication enable default group radius enable command is correct？（）

Authentication is the process of determining if a user or identity is who they claim to be. Refer tothe exhibit. Which statement about the authentication process is correct？（）

You need to configure a GRE tunnel on a IPSec router. When you are using the SDM to configurea GRE tunnel over IPsec， which two parameters are required when defining the tunnel interfaceinformation？（）

Refer to the exhibit. Which two statements about the AAA configuration are true？（）

As a network technician， do you know what is a recommended practice for secure configurationmanagement？（）

Drag the DSL technologies on the left to their maximum（down/up） data rate values on the below.

Study the exhibit carefully. The Cisco IOS IPsec High Availability （IPsec HA） Enhancementsfeature provides an infrastructure for reliable and secure networks to provide transparent availability of the VPN gateways - that is， Cisco IOS Software-based routers. What are the twooptions that are used to provide High Availability IPsec？（）

Which two encapsulation methods require that an 827 ADSL router be configured with a PPPusername and CHAP password？（）

Which statement about PPPoA configuration is correct？（）

As a network engineer， study the exhibit carefully. Router Net is unable to establish an ADSLconnection with its provider. Which action would correct this problem？（）