JNCIA Implementation Planning 2

Question 1

What is the primary purpose of a network implementation plan for a Junos deployment?

Accepted Answer

To document the configuration steps, rollback procedures, and testing criteria before making changes to production

Answer

An implementation plan defines the sequence of configuration changes, pre/post-change verification steps, rollback procedures, and success criteria to reduce risk during network changes.

Question 2

In Junos, what is the maximum number of rollback configurations stored by default?

Accepted Answer

50

Answer

Junos stores up to 50 rollback configuration files (rollback 0 through rollback 49), with rollback 0 being the current active configuration and rollback 1 being the previous.

Question 3

What does 'load override' do in Junos configuration mode?

Accepted Answer

Replaces the entire candidate configuration with the contents of a specified file

Answer

'load override' completely replaces the candidate configuration with the file's contents, discarding any existing candidate configuration. It is used to deploy a complete configuration from a file.

Question 4

How should VLAN IDs be planned when deploying Juniper EX switches in a multi-switch environment?

Accepted Answer

Assign unique VLAN IDs consistently across all switches and trunk ports to ensure traffic segmentation and correct tagging

Answer

VLAN IDs must be consistently planned across the network because 802.1Q VLAN tags are significant end-to-end on trunk ports. Inconsistent VLAN IDs cause traffic misclassification.

Question 5

What is the purpose of 'commit check' in Junos?

Accepted Answer

Validates the candidate configuration for syntax and semantic errors without activating it

Answer

'commit check' runs Junos's configuration validation engine against the candidate configuration, reporting any errors or warnings, without making any changes to the active configuration.

JNCIA - Juniper Networks Certified Internet Associate Practice Test

JNCIA - Juniper Networks Certified Internet Associate Practice Test

JNCIA Implementation Planning 2