JN0-343 Online Practice Questions and Answers

When using the factory-default configuration, which VLAN is assigned to all interfaces on an EX Series switch?

A. vlan1

B. native

C. default

D. unnumbered

Based on the exhibit, in which spanning-tree state would the indicated port be?

A. listening

B. learning

C. forwarding

D. blocking

What is the default behavior of a trunk port when it receives transit traffic without a VLAN tag?

A. It drops the traffic.

B. It forwards the traffic.

C. It tags the transit traffic with lowest VLAN ID permitted on the trunk.

D. It tags the transit traffic with highest VLAN ID permitted on the trunk.

Which routing-instance type allows the sharing of interface routes and the support features used in source-based routing?

A. virtual-router

B. vrf

C. forwarding

D. multi-instance

In the exhibit, six routers (R1, R2, R3, R4, R5, and R6) are attached to a single Ethernet

LAN and configured with addresses in the same subnet. All devices boot at the same time. Which router will become the designated router (DR), and which router will become the backup designated router (BDR)?

A. DR:R3 BDR: R4

B. DR: R4 BDR: R3

C. DR: R6 BDR: R1

D. DR: R6 BDR: R2

For two OSPF neighbors to establish a full adjacency on a broadcast medium, what information in their hello packets must match? (Choose two.)

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A. network mask

B. router priority

C. dead interval

D. the list of neighbors on the network

What is the purpose of the forwarding routing instance type?

A. to create multiple Layer 3 switches

B. to create a virtual Layer 2 switch

C. to forward Layer 3 VPN traffic

D. to implement filter-based forwarding

Your current network is using Switch-1 and Switch-2 as a Layer 3 core pair. You change the EX series switch core into a VC and configure the links between the switches to be a LAG.

Assuming that Switch-3 is operating at Layer 2 only, which two protocols would be removed from this portion of the network? (Choose two.)

A. GRES

B. BFD

C. VRRP

D. STP

Which statement describes the flooding bridging mechanism when it receives traffic destined to an unknown MAC address?

A. The switch will discard the traffic and send a destination unreachable message.

B. The switch will clear the bridging table and forward traffic out all ports.

C. The switch will silently discard the traffic.

D. The switch will forward the traffic out all ports.

Interface ge-0/0/3 has been disabled because a storm control limit has been exceeded. Which two commands are valid to recover the interface? (Choose two.)

A. user@switch> clear ethernet-switching storm-control-error interface ge-0/0/3

B. user@switch# set ethernet-switching-options secure-access-port disable-timeout 30

C. user@switch> clear ethernet-switching port-error interface ge-0/0/3

D. user@switch# set ethernet-switching-options port-error-disable disable-timeout 30