JN0-343 Exam Questions

Which feature is used to route traffic to a specified ISP based on the source address?

Which two forms of spanning-tree protection are offered by EX Series switches? (Choose two.)

Which Junos OS operational mode command provides a high-level view of all configured BGP peers?

Which configuration provides dynamic ARP inspection on access port ge-0/0/0?

Which command can you use to view the link-state PDUs?

Which statement is true about IS-IS hello (IIH) PDUs?

An OSPF broadcast segment has four OSPF-speaking routers. One router is in the DR state, one is in the BDR state, and two are in DR other states. How many 2Way OSPF sessions does a...

Which two statements are true about NSR? (Choose two.)

Which two link-state advertisement (LSA) types are allowed in a stub area? (Choose two.)

An ABR is connected to an NSSA, but it also functions as an ASBR. Which configuration disables the exporting of Type 7 LSAs into the connected NSSA?

What is a benefit of the 802.3ad standard?

BGP uses which underlying protocol to establish connection to peers?

On an edge router, you want to create a default route with a next hop to an external connection. The route should be available only when you are receiving routes from the external...

Which configuration command would you use to add an IPv6 static route to your Junos device?

You configured an aggregate route of 192.168.8.0/21 and committed the updated configuration. Using an operational show command, you notice that the newly configured route is not pr...

Click the Exhibit button. In the output shown in the exhibit, which protocol does the route display?

You want several different subnets within your enterprise network to be reachable from outside the enterprise network. Your edge router must share a single route advertisement abou...

You run the operational-mode command show ospf neighbor and notice that an expected OSPF neighbor on a broadcast link is not detected. Which three issues cause this behavior? (Choo...

You execute the operational-mode command show ospf neighbor and notice that one neighbor relationship remains in the exStart state. What causes this behavior?

You are viewing the Ethernet switching table and notice that a previous entry is no longer listed. What is a valid reason for an entry to be removed from the table?

Which mechanism keeps a switch from forwarding Layer 2 traffic from one broadcast domain to another?

An EX Series switch receives an Ethernet frame with a destination MAC address that is not in the bridging table. How does the Junos OS handle the received frame?

Which three actions are valid methods to clear all entries from the Ethernet switching table on an EX Series switch? (Choose three.)

You are viewing the output of the operational-mode command show interfaces ge-0/0/4 on an EX Series switch in which no ether-options are configured for the ge-0/0/4 interface. Whic...

You must route both IPv4 and IPv6 packets in your environment. Which configuration should you add at the [edit protocols] level to allow you to accomplish this objective?

Click the Exhibit button. In the exhibit, you run the command show ospf neighbor on R3 and notice that an adjacency with R5 remains in the 2-Way state. Which statement is true?

You see a route in your local routing table that was learned using OSPF. Which command allows you to determine where the route originated?

Which two events trigger an IS-IS LSP to be sent to a neighboring IS? (Choose two)

What does the attach bit in an IS-IS PDU indicate?

On a broadcast network, which three statements are true about IS-IS adjacencies? (Choose three.)

Which two prerequisites does IS-IS need to operate? (Choose two.)

You configure a metric of 200 on an IS-IS enabled interface on Router-1. When you examine the routing table entry for that link on another IS-IS device, you see a metric of 67. Wha...

Click the Exhibit button. On Switch-1, all configured interfaces belong to the default VLAN. Based on the topology and bridge table shown in the exhibit, which two operations will...

A switch has just come online and currently has no learned unicast entries in its bridge table. Which two statements regarding this switch and its operations are true? (Choose two....

Click the Exhibit button. You are deploying a Virtual Chassis consisting of four EX4200s. You have powered on all four switches at the same time with the settings shown in the exhi...

Click the Exhibit button. The exhibit shows the Ethernet bridge table on an EX Series switch. What does the asterisk (*) in the output indicate?

VLANs provide separation for which type of domains?

What are two switch port default settings on EX Series switches? (Choose two.)

Which two configurations are valid methods for associating a VLAN with an interface on EX Series switches? (Choose two.)

No user-defined configuration exists for the default VLAN. Which configuration is valid on EX Series switches?

By default, which VLAN ID value is associated with the default VLAN on EX Series switches?

On which interface would an IP address be configured for a routed VLAN interface?

Which operational-mode command displays the IP address of all routed VLAN interfaces (RVIs)?

Which three configurations are required for an operational routed VLAN interface (RVI)? (Choose three.)

Which function(s) does STP serve in a Layer 2 network?

Which protocol or feature detects and eliminates Layer 2 loops in a network?

Which two statements are true regarding BPDUs of spanning tree protocols? (Choose two.)

You just implemented a Layer 2 network that uses RSTP. Which two statements are true? (Choose two.)

You just implemented RSTP in your Layer 2 network. Which two statements are true? (Choose two.)

You just installed Switch-1 and Switch-2 in your network. Both switches are EX Series switches and are connected to each other using a Layer 2 switch port. Switch-1 must run STP, w...