JN0-351 Online Practice Questions and Answers

Which statement is correct about the OSPF router ID (RID)?

A. The OSPF RID must match for all routers in the same area.

B. The OSPF RID for IPv6 is a 128-bit address.

C. The OSPF RID for IPv4 is a 32-bit address.

D. The OSPF RID is not necessary when BFD is implemented.

Click the Exhibit button.

---- Exhibit Missing ---

Referring to the exhibit, which three statements are correct? (Choose three.)

A. R1 and R3 can form a Layer 2 IS-IS adjacency.

B. R2 and R4 can form a Layer 1 IS-IS adjacency.

C. R3 and R4 can form a Layer 2 IS-IS adjacency.

D. R1 and R3 can form a Layer 1 IS-IS adjacency.

E. R3 and R4 can form a Layer 1 IS-IS adjacency.

What is the default route preference for BGP?

A. 150

B. 167

C. 170

D. 179

Which statement describes BFD?

A. BFD rapidly detects link failures.

B. BFD provides route loop protection.

C. BFD provides broadcast storm protection.

D. BFD provides high availability with multiple Routing Engines.

Which two statements about a Virtual Chassis are correct? (Choose two.)

A. A Virtual Chassis is managed using a single virtual console port.

B. You must use the same EX Series switch for all members in a Virtual Chassis.

C. All members in a Virtual Chassis must be running the same Junos version.

D. Each device must be managed separately.

Which two statements about BPDU protection are correct? (Choose two.)

A. By default, you must manually clear a BPDU error condition when using BPDU protection.

B. BPDU protection prevents unauthorized switches from connecting to and participating in your spanning tree topology.

C. By default, BPDU protection prevents the root bridge from communicating with other STP members unless it receives a superior BPDU first.

D. BPDU protection requires that STP or RSTP is configured on the switch.

Which two statements are true about GRE tunnels on Junos devices? (Choose two.)

A. Only one GRE tunnel can be included for each logical unit.

B. Multiple GRE tunnels can be included for each logical unit.

C. GRE interfaces can include multiple logical units.

D. GRE interfaces can include only a single logical unit.

You are receiving multiple BGP routes from an upstream neighbor and only want to advertise a single summarized prefix to your internal OSPF neighbors. This route should only be advertised when you are receiving these BGP routes from this neighbor.

In this scenario, which type of route should you create?

A. aggregate route

B. static route using the resolve feature

C. generate route

D. static route using qualified next hops

In RSTP, which three port roles are associated with the discarding state? (Choose three.)

A. root

B. backup

C. alternate

D. disabled

E. designated

You deployed a new EX Series switch with DHCP snooping enabled and you do not see any entries in the snooping databases for an interface. Which two Juniper configurations for that interface caused this issue? (Choose two.)

A. The interface is configured as a disabled port.

B. MAC limiting is enabled on the interface.

C. The interface is configured as a trunk port.

D. Dynamic ARP inspection is enabled on the interface.