Cisco Updated 350-701 Exam Questions and Answers by peyton

Explanation

Cisco Context Directory Agent (CDA) is a mechanism that maps IP Addresses to usernames in order to allow

security gateways to understand which user is using which IP Address in the network, so those security

gateways can now make decisions based on those users (or the groups to which the users belong to).

CDA runs on a Cisco Linux machine; monitors in real time a collection of Active Directory domain controller (DC) machines for authentication-related events that generally indicate user logins; learns, analyzes, and caches mappings of IP Addresses and user identities in its database; and makes the latest mappings available to its consumer devices.

the interface configuration. MAB stands for MAC Authentication Bypass, which is a feature that allows devices that do not support 802.1X, such as printers and video cameras, to bypass the authentication process and gain network access based on their MAC addresses1. By adding mab to the interface configuration, the Cisco ISE administrator can enable MAB as a fallback method after 802.1X fails or times out. This way, the devices that support 802.1X can use their machine certificate credentials, while the devices that do not support 802.1X can use their MAC addresses to authenticate with Cisco ISE2. The other options are not correct because they either compromise the security controls or do not address the problem. Changing the default policy in Cisco ISE to allow all devices not using machine authentication would weaken the security posture and expose the network to unauthorized access. Enabling insecure protocols within Cisco ISE in the allowed protocols configuration would also reduce the security level and increase the risk of attacks. Configuring authentication event fail retry 2 action authorize vlan 41 on the interface would only apply to the devices that fail authentication twice, and would not solve the issue for the devices that do not support 802.1X at all3. References:

1: MAC Authentication Bypass Deployment Guide

2: Configuring MAC Authentication Bypass

3: Cisco Identity Services Engine Administrator Guide, Release 3.1 - Segmentation

VMware APIC is a platform that integrates with Cisco ACI to provide enhanced visibility, policy integration and deployment, and security policies with access lists. VMware APIC is a virtual appliance that runs on VMware vSphere and communicates with the Cisco APIC controller. VMware APIC allows administrators to create and manage Cisco ACI policies for VMware virtual machines and networks. VMware APIC also provides a unified view of the physical and virtual network topology, health, and statistics. VMware APIC supports the following modes of Cisco ACI and VMware integration:

VMware VDS: When integrated with Cisco ACI, the VMware vSphere Distributed Switch (VDS) enables administrators to configure VM networking in the ACI fabric.

Cisco ACI Virtual Edge: Cisco ACI Virtual Edge is a distributed service that provides Layer 4 to Layer 7 services for applications running on VMware vSphere.

Cisco Application Virtual Switch (AVS): Cisco AVS is a distributed virtual switch that provides policy-based network services for VMware vSphere environments. References:

Cisco ACI with VMware VDS Integration

Cisco ACI and VMware NSX-T Data Center Integration

Cisco ACI and VMware: The Perfect Pair

Setting the Record Straight: Confusion about ACI on VMware Technologies