Your edge router must block packets with source addresses in the 240.0.0.0/4 reserved range. You have created a firewall filter term that matches source address 240.0.0.0/4 and discards the packet. After applying the filter, you notice that packets with source address 240.1.2.3 are still being forwarded. What is the most likely reason?

The filter is applied to the wrong interface or direction.

The 240.0.0.0/4 range is not considered Martian and should not be filtered.

The filter term is missing the 'from' statement.

The filter term is not using the 'then discard' action.

Which Junos configuration element is used to reject packets with Martian source or destination addresses?

A forwarding table configured with a static route.

A BGP group configured with a peer AS.

A firewall filter applied to an interface.

A route filter applied to a routing policy.

Why do routers filter Martian addresses?

To prevent routing loops, spoofing, and the propagation of invalid routes.

To ensure that all traffic uses the shortest path to its destination.

To reduce the size of the routing table by removing unused routes.

To allow only private IP addresses to be routed on the Internet.

What is a key benefit of filtering Martian addresses on a router?

It allows the router to use more memory for routing tables.

It prevents the router from forwarding traffic to invalid destinations.

It enables the router to automatically configure IP addresses.

It increases the router's CPU speed.

Juniper NetworksCertified Specialist, Enterprise Routing and Switching (JNCIS-ENT)

Domain 4Objective 2

Martian Addresses JN0-352 Practice Questions (Page 2)

Part of the Protocol Independent Routing domain, which makes up ~10% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~4–6 in this domain), expect 1–1 from this objective — we provide 11 practice questions to prepare you well beyond it. (estimate)

11questions here

3free pages

5concepts

Questions 6–10

6application · medium
Your edge router must block packets with source addresses in the 240.0.0.0/4 reserved range. You have created a firewall filter term that matches source address 240.0.0.0/4 and discards the packet. After applying the filter, you notice that packets with source address 240.1.2.3 are still being forwarded. What is the most likely reason?
Select an answer first
7foundation · easy
Which Junos configuration element is used to reject packets with Martian source or destination addresses?
Select an answer first
8foundation · easy
Why do routers filter Martian addresses?
Select an answer first
9foundation · easy
What is a key benefit of filtering Martian addresses on a router?
Select an answer first
10foundation · easy
Which command is used to verify that a Martian address filter is working correctly?
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Martian Addresses JN0-352 Practice Questions (Page 2)

Questions 6–10

Which Junos configuration element is used to reject packets with Martian source or destination addresses?

Why do routers filter Martian addresses?

What is a key benefit of filtering Martian addresses on a router?

Which command is used to verify that a Martian address filter is working correctly?

Keep studying — Protocol Independent Routing