When will a Junos router use the default route (0.0.0.0/0) to forward a packet?

When the routing table has only one route and it is the default route.

When the destination IP address is in the same subnet as the router's interface.

When the destination IP address is a broadcast address.

When no other route in the routing table matches the destination IP address.

A Junos router has the following routes: 10.0.0.0/8, 10.1.0.0/16, and 10.1.2.0/24. A packet arrives destined for 10.1.2.3. Which route will the router use?

The router uses all three routes for load balancing

A Junos router receives a packet destined for 203.0.113.42. The routing table contains: 203.0.113.0/24 via ge-0/0/0, 203.0.113.0/25 via ge-0/0/1, and 203.0.113.32/27 via ge-0/0/2. Which interface will the router use to forward the packet?

The router will use ge-0/0/0 and ge-0/0/1 in a load-balancing group

A network administrator is troubleshooting a routing issue. The router has the following routes: 172.16.0.0/12, 172.16.1.0/24, and 172.16.1.128/25. A packet is destined for 172.16.1.200. Which route will be used?

The router will use the route with the lowest metric

A network administrator is configuring a Junos router with overlapping routes. The router has 192.168.0.0/16 and 192.168.1.0/24. A packet is destined for 192.168.1.50. Which route will be used?

The router will use the route with the lowest metric

The router will use both routes in a load-balancing group

Juniper NetworksCertified Associate, Junos

Domain 1Objective 8

Longest-Match Routing JN0-105 Practice Questions (Page 3)

Part of the Networking Fundamentals domain, which makes up ~24% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~8–14 in this domain), expect 1–1 from this objective — we provide 22 practice questions to prepare you well beyond it. (estimate)

22questions here

5free pages

5concepts

Questions 11–15

11foundation · easy
When will a Junos router use the default route (0.0.0.0/0) to forward a packet?
Select an answer first
12foundation · easy
A Junos router has the following routes: 10.0.0.0/8, 10.1.0.0/16, and 10.1.2.0/24. A packet arrives destined for 10.1.2.3. Which route will the router use?
Select an answer first
13application · easy
A Junos router receives a packet destined for 203.0.113.42. The routing table contains: 203.0.113.0/24 via ge-0/0/0, 203.0.113.0/25 via ge-0/0/1, and 203.0.113.32/27 via ge-0/0/2. Which interface will the router use to forward the packet?
Select an answer first
14application · easy
A network administrator is troubleshooting a routing issue. The router has the following routes: 172.16.0.0/12, 172.16.1.0/24, and 172.16.1.128/25. A packet is destined for 172.16.1.200. Which route will be used?
Select an answer first
15application · easy
A network administrator is configuring a Junos router with overlapping routes. The router has 192.168.0.0/16 and 192.168.1.0/24. A packet is destined for 192.168.1.50. Which route will be used?
Select an answer first

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