Juniper JN0-106 - Questions & Answers

Routing lookup uses longest prefix match. Address 10.0.0.9 matches several listed routes, but 10.0.0.8/27 is the most specific matching prefix, so traffic for that host uses next hop 192.168.2.1.

A rescue configuration is a known-good recovery point for a Junos device. After the initial working setup, saving it as rescue gives an administrator a clean configuration to restore after later misconfiguration.

The view permission allows operational inspection without configuration authority. That fits checking routing and interface statistics while preventing the user from entering configuration changes.

In Junos, edits are made in the candidate configuration first. Those proposed changes do not affect the active running configuration until a successful commit promotes the candidate version.

A /29 subnet has eight addresses. For 172.16.40.128/29, .128 is the network and .135 is broadcast, leaving usable hosts .129 through .134; the fourth usable address is 172.16.40.132.

Configuration groups let common Junos statements be defined once and inherited by many hierarchy locations. Applying a group to the interfaces avoids repeating the same description and MTU settings on every port.

The users and server are on different IPv4 subnets, so each endpoint needs a default gateway for off-subnet traffic. The router can route between the connected networks without requiring a dynamic routing protocol.

IPv6 hosts use Neighbor Discovery Protocol to resolve a next hop's link-layer address. ARP performs that role for IPv4, while DHCP assigns configuration data and DNS resolves names.