27 - Exploring Automation and Assurance Using Cisco DNA Centre

Question 1

The ___ feature scans the devices in your network and sends the list of discovered devices to the inventory

Answer 1

discovery

Question 2

What are the 3 ways to discover devices?

Answer 2

• Use CDP and provide a seed IP address
• Specify a range of IP addresses (a max range of 4096 devices is supported)
• Using Link Layer Discovery Protocol (LLDP) and provide a seed IP address

Question 3

Before you run discovery, you must ensure at least one __ credential is configured on your devices.

Answer 3

SNMP

Question 4

The ___ function retrieves and saves details, such as host IP addresses, MAC addresses, and network attachment points about devices in its database.

Answer 4

inventory

Question 5

Inventory uses the following protocols, as required:

Answer 5

• LLDP
• IP device tracking (IPDT) or Switch-Integrated Security Features (SISF)
• LLDP Media End-point Discovery (used to discover IP phones and some servers)
• Network Configuration Protocol (NETCONF)

Question 6

After the initial discovery, Cisco DNA centre maintains the inventory by polling the devices at regular intervals. The default and minimum interval is every ___.

Answer 6

25 minutes

Question 7

Cisco DNA centre stores all the software images and software maintenance updates (SMUs) for the devices in your network. Image Repository provides the following functions:

Answer 7

• Image repository – Cisco DNA centre stores all the unique software images according to image type and version
• Provision – you can push software images to the devices in your network

Question 8

Cisco DNA centre allows you to designate software images and SMUs as __. A __ image or SMU is a validated image that meets the compliance requirements for the particular device type.

Answer 8

golden

Question 9

The Cisco DNA centre __ tool is built to support the scale of global customers while easily supporting customers with local or regional networks. It is possible to push changes by local level, or country-level etc.

Answer 9

design

Question 10

The Cisco network ___ application on Cisco DNA centre is used for device __. Once powered on, the devices securely connect to the Cisco DNA centre and need to be claimed using the Network __ application. The network admin claims the devices and then downloads the certificates and will be added to the sites for provisioning.

Answer 10

plug and play, onboarding, plug and play

Question 11

Network __ are reusable network design templates that include site-agnostic parameters. It is a standard configuration of a device by “place in network” or “device role”. For example, a WAN edge router can have a common configuration at multiple sites. The configuration may be based on the best practices and tested extensively, thus reducing the risk of manual errors. Once you have created network ___, they are assigned to the sites. The devices added to sites will inherit the configuration that is defined on the __.

Answer 11

profiles

Question 12

What are the steps to take before you can use the Assurance application?

Answer 12

1. Install DNA centre
2. Discover devices
3. Design your network hierarchy and configure location of each device
4. Make sure devices are added to the inventory

Question 13

Allows a 360 degree view of entire network and show overall health of network infrastructure and clients

Answer 13

Network and client visibility

Question 14

A percentage of the number of healthy network devices

Answer 14

Network health score

Question 15

Percentage of the number of health network devices

Answer 15

Device category score

Question 16

Sensors use sensor-driven tests to test the health of wireless networks

Answer 16

Sensor based proactive monitoring

Question 17

Provides advanced search capabilities based on IP address, usernames etc. It provides relevant 360 view with all details and issues experience which helps troubleshooting

Answer 17

Streamlined troubleshooting

Question 18

Permits you to run diagnostic CLI commands on selected devices

Answer 18

Command runner

Question 19

Allows you to go back in time to understand the network states when issue occurred

Answer 19

Network time travel

Question 20

Follow network path for any traffic flow from any source to destination

Answer 20

Path trace

Question 21

Allows you to monitor the health of an application. Application health is measured using a score value, which is calculated based on packet loss and latency.

Answer 21

Application experience – AppX