Question 1

You do not want any spanning tree protocols operating in your environment, and you want to ensure that no BPDUs can be introduced into the environment.

Which statement is true in this scenario?

AYou must run a spanning tree protocol to block BPDUs.

BIncoming BPDUs are blocked by default if a spanning tree protocol is not operating.

CYou can block BPDUs without running a spanning tree protocol using Layer 3 control.

DIncoming BPDUs can only be blocked by the root bridge.

Answer : C

Question 2

Which two statements concerning IS-IS adjacencies are correct? (Choose two.)

AFor Level 1 adjacencies, the area IDs can be different.

BFor Level 2 adjacencies, the area IDs can be different.

CLevel 2 routers can form an adjacency with Level 1 routers.

DLevel 2 routers do not form adjacencies with Level 1 routers.

Answer : B, C

Question 3

Which two statements about aggregate routes in the Junos OS are correct? (Choose two.)

AAn aggregate route has a default next hop of an IP address.

BAn aggregate route always shows as active in the routing table.

CAn active route can contribute only to a single aggregate route.

DOnly one aggregate route can be configured for each destination prefix.

Answer : C, D

Question 4

Exhibit.

Referring to the exhibit, Router-1 and Router-2 are failing to form an IS-IS adjacency.

What should you do to solve the problem?

ARemove the overloaded statement from Router-1.

BChange the IP subnet masks to match on the ge-0/0/2 interfaces of both routers.

CRemove the ISO address from ge-0/0/2 on Router-1.

DChange the ISO areas on the Io0 interfaces to match on both routers.

Answer : B

Question 5

Exhibit.

Referring to the exhibit, why is the route for 10.5.5.5 hidden?

AIt is an L3VPN route.

BThe next hop cannot be resolved.

CIt has an invalid community.

DIt is a Martian route.