JN0-343 Exam Questions

Referring to the exhibit, which two elements must be configured to pass both tagged voice and untagged data traffic? (Choose two.)

User D is trying to send traffic to User B. Referring to the exhibit, what will happen to the traffic?

You are asked to ensure that your trunk port transmits both tagged and untagged traffic. Which statement is correct?

Which statement is correct regarding the default behavior of trunk ports on EX Series switches?

You are asked to associate the v100 and v200 VLANs with the ge-0/0/1 interface. Which two configurations are correct? (Choose two.)

You are trying to pass traffic using VLAN v10; however, traffic is not reaching the device connected to port ge-0/0/5. {master:0} user@switch> show vlans Name Tag Interfaces defaul...

Which statement is true about STP on an EX Series switch?

What are three advantages of RSTP over STP? (Choose three.)

Which three port states of RSTP are valid? (Choose three.)

What are two types of STP BPDUs? (Choose two.)

Based on the exhibit and assuming default port costs, in which RSTP port role and state is Switch C's interface connecting to Switch B?

Which two statements are correct about how EX Series switches support STP and RSTP interoperability? (Choose two.)

The exhibit shows three switches interconnected using the default RSTP settings. What is the role of Port A?

The exhibit shows three switches interconnected using RSTP. What is the role of Port B?

Your network consists of four EX Series switches, configured with the following STP parameters: S1: Bridge address - F F:33:44:77 ; Bridge priority - 16k S2: Bridge address - F F:3...

Your network consists of four EX Series switches, configured with the following STP parameters: S1: Bridge address - F F:33:44:77 ; Bridge priority - 8k S2: Bridge address - F F:33...

In the exhibit, the switches have all been powered on at the same time and have the factory default RSTP configuration. Which action would ensure that Switch A becomes the root bri...

You are troubleshooting a spanning tree problem and must quickly determine the cumulative cost to the root bridge. Which CLI command should you use?

You have four interconnected switches all using default RSTP parameters. You are asked to ensure that S1 becomes the root bridge. Which configuration will accomplish this task?

You manage the network shown in the exhibit. All four switches have the default RSTP settings. The elected root bridge is switch-1. You must ensure that switch-4 always prefers the...

Which three statements are correct regarding the information shown in the exhibit? (Choose three.) {master:0} user@switch> show spanning-tree interface Spanning tree interface para...

Referring to the exhibit, which statement is correct about the ge-0/0/1 interface? {master:0} user@switch> show spanning-tree interface Spanning tree interface parameters for insta...

Referring to the exhibit, which statement is true about the ge-0/0/3 interface? {master:0} user@switch> show spanning-tree interface Spanning tree interface parameters for instance...

Which two statements about dynamic ARP inspection (DAI) are true? (Choose two.)

Your security department has identified an increase in IP spoofing attacks. Which feature should you enable with DHCP snooping to prevent these attacks?

You are asked to ensure that an unauthorized switch running spanning tree cannot be added to any edge port on your EX Series switch. The ports must discard any incoming spanning tr...

You have a device that is sending a malicious packet to other devices in your Layer 2 network. You are asked to ensure that packets sent from this device are not allowed to enter y...

Which two statements are true about firewall filters on an EX Series switch? (Choose two.)

In your network, you have configured an EX Series switch with port-based, VLAN-based, and router-based firewall filters. The filters are applied to examine all outgoing traffic. In...

You are asked to inspect your EX Series switch for MAC limit violations. Which two CLI commands would you use? (Choose two.)

You want to configure interface ge-0/0/3 to transition to an inconsistent role in the blocking state when it receives a superior BPDU. Which command would you use?

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.)

You are implementing a Layer 3 VPN on a Junos device. Which routing instance type would you use?

Which statement is true about an aggregate route?

You are performing a file transfer from HostA to ServerB. As shown in the exhibit, R1 and R2 have four equal-cost paths. Which statement is correct about the default behavior of th...

You are configuring filter-based forwarding on your Junos device. Which three components must be configured to accomplish this task? (Choose three.)

Referring to the exhibit, which type of route is displayed? user@router> show route 0/0 exact detail inet.0: 10 destinations, 10 routes (10 active, 0 holddown, 0 hidden) 0.0.0.0/0...

You want to share routes between your Junos device's master routing instance and another routing instance. Which feature would be used to accomplish this task?

In the exhibit, R1 receives a packet with a destination address of 66.129.3.1. Which action does R1 take on the packet? user@R1> show route 66.129.0.0/22 exact detail inet.0: 12 de...

You are required to configure a static route to 10.0.100.1 on R1. The traffic must flow through R3. Referring to the exhibit, which static route configuration parameter meets this...

Referring to the exhibit, which route is eligible for installation on the local inet.0 routing table? [edit routing-options martians] user@router# show 23.0.0.0/8 longer; 24.0.0.0/...

In the exhibit, R2 has a failure and R6 is promoted from the BDR to the DR. Which router is elected as the new BDR?

You have both IPv4 and IPv6 running in your network. You are asked to migrate your IGP from IS-IS to OSPF. The network must retain OSPF connectivity between all routers. Which stat...

Which statement describes the role of an OSPF ABR?

Which statement describes the role of an OSPF ASBR?

Your network design currently consists of a single OSPF backbone area. You are asked to reduce the size of the OSPF link-state database. Which two steps allow you to accomplish thi...

Referring to the exhibit, which address represents the RID? [edit] user@router# show protocols ospf traffic-engineering advertise-unnumbered-interfaces; area 0.0.0.0 { interface al...

In an OSPF hello packet, which field is evaluated only on broadcast media links?

Which three OSPF LSA types are allowed in an NSSA? (Choose three.)

You are viewing the output of the show ospf neighbor command from your routers on a LAN segment and you notice that an interface has the state of 2way. What would be the cause?