You are adding a new EX4300 member switch to your existing EX4300 Virtual Chassis. However, the new member is not running the same Junos version as the other members.
By default, what is the expected behavior in this scenario?

A. the Virtual Chassis will transition into a split brain situation between the existing master Routing Engine and the switch running the different version.

B. The new switch will automatically pull the correct version from the master Routing Engine and perform the necessary upgrade.

C. The new switch will be assigned a member ID and then placed in an inactive state.

D. The new switch is not recognized by the Virtual Chassis.

Which two situations would cause dynamic ARP inspection to drop traffic? (Choose two.)

A. if no IP-to-MAC address entry exists in the DHCP snooping database

B. if the IP address in the ARP packet is deemed invalid

C. if the requested MAC address exceeds the configured limit on the port

D. if the ARP packet comes from a port that has been configured as trusted

Click the Exhibit button.
 
Which statement is true about the configuration shown in the exhibit?

A. The preference for the 172.30.25.1 next hop is 5.

B. The preferred next hop is 172.30.25.5.

C. The preference for the 172.30.25.1 next hop is 7.

D. 172.30.25.1 is the preferred next hop.

Click the Exhibit button.
 
You have configured OSPF routing as shown in the exhibit. You notice that all interfaces have formed full adjacencies, with the exception of the interfaces connecting R3 and R4 with a status of 2Way.
What is the reason for this status?

A. The two routers must both be configured as DR routers.

B. DROther routers will not form a full adjacency with each other.

C. The two routers must be configured in different areas.

D. The interface-type is not configured as p2p.

What are the three possible port states when using RSTP? (Choose three.)

A. forwarding

B. learning

C. discarding

D. listening

E. tagging

Click the Exhibit button.
 
You want to prevent rogue BPDUs from lab devices reaching the internal through the Lab_Switch device.
Referring to the exhibit, what should be done to accomplish this task?

A. Configure the three lab ports as edge ports

B. Configure an input filter on interface xe-0/2/0 to discard the RSTP packets

C. Configure the three lab ports under the protocols layer2-control bpdu-block hierarchy on the switch

D. Configure protocols rstp with the bpdu-block-on-edge parameter for interface xe-0/2/0

Which statement about configuring persistent MAC learning is correct?

A. Persistent MAC learning requires 802.1X authentication.

B. Persistent MAC learning can be configured on access mode interfaces.

C. Persistent MAC learning flushes dynamically learned MAC addresses on reboots.

D. Persistent MAC learning cannot be configured on redundant trunk groups.

Which two statements are true about high availability on Junos devices? (Choose two.)

A. BFD is faster at detecting failures than default GRE or OSPF timers.

B. BFD is slower at detecting failures than default GRE or OSPF timers.

C. NSR is dependent on helper routers to assist the routing platform in restoring routing protocol information.

D. NSR is independent on helper routers to assist the routing platform in restoring routing protocol information.

Which two statements describe BGP attributes? (Choose two.)

A. BGP attributes help determine the best path to a destination.

B. The origin attribute indicates the autonomous systems through which the route has traversed.

C. BGP attributes are always optional.

D. The AS path attribute indicates the autonomous systems through which the route has traversed.

Which statement is correct about IS-IS link state PDUs?

A. They are used to maintain link-state database synchronization.

B. They are used to establish adjacencies.

C. They are used to build the link-state database.

D. They are used to determine whether the neighbors are Level 1 or Level 2.

Click the Exhibit button.
 
Given the route shown in the exhibit, which two prefixes contribute to the aggregate route? (Choose two.)

A. 172.12.31.0/24

B. 172.12.33.0/24

C. 172.12.30.0/24

D. 172.12.32.0/24

How many bytes of overhead are added to a packet traversing a GRE tunnel?

A. 20

B. 24

C. 12

D. 16

Click the Exhibit button.
 
Referring to the exhibit, which two statements about BGP prefixes advertised by R1 to AS 65501 are true? (Choose two.)

A. R1 will modify the originator ID attribute in prefixes advertised to AS 65501

B. R1 will modify the AS path attribute in prefixes advertised to AS 65501

C. R1 will modify the next-hop attribute in prefixes advertised to AS 65501

D. R1 will modify the cluster list attribute in prefixes advertised to AS 65501

Click the Exhibit button.
 
Referring to the exhibit, why is the route for 10.5.5.5 hidden?

A. It is a martian route.

B. It has an invalid community.

C. It is an L3VPN route.

D. The next hop cannot be resolved.

What are two characteristics of IS-IS CSNPs? (Choose two.)

A. IS-IS CSNPs contain header information for all link-state PDUs.

B. IS-IS CSNPs are used to request a copy of a missing link state PDU.

C. IS-IS CSNPs are used to maintain the link-state database synchronization.

D. IS-IS CSNPs contain header information for specific requested link-state PDUs.

Click the Exhibit button.
 
Both the R1 and R2 devices are advertising prefix X into AS 65530 with the BGP attributes shown in the exhibit.
Which statement is correct in this scenario?

A. R2’s version of prefix X will be active because of the local preference attribute.

B. R1’s version of prefix X will be active because of the local preference attribute.

C. R1’s version of prefix X will be active because of the AS path attribute.

D. R2’s version of prefix X will be active because of the AS path attribute.

Which mechanism is used to share routes between routing tables?

A. RIB groups

B. routing instances

C. forwarding instances

D. filter-based forwarding

An EBGP session sources its TCP connection from which IP address?

A. The IP address assigned as the router ID.

B. The IP address of the preferred address assigned to the loopback interface.

C. The IP address of the primary address assigned to the loopback interface.

D. The IP address of the interface that connects the two BGP speakers.

Click the Exhibit button.
 
Your router is configured to peer with your ISP's router using BGP. You can only control your BGP configuration.
Which address families are negotiated between the two BGP peers shown in the exhibit?

A. inet-unicast inet-vpn-unicast 12vpn-signaling

B. inet-unicast

C. inet-vpn-unicast

D. inet-unicast inet-vpn-unicast 12vpn

Click the Exhibit button.
 
Referring to the output shown in the exhibit, which statement is correct?

A. 11.0.0.108/32 is being per-flow load-balanced

B. 11.0.0.102/32 is being per-packet load-balanced

C. 11.0.0.102/32 is being per-flow load-balanced

D. 11.0.0.108/32 is being per-packet load-balanced

Click the Exhibit button.
 
Referring to the exhibit, which configuration change is needed for an IS-IS Level 1 adjacency between R1 and R2?

A. Configure the lo0 family ISO address 49.0002.0010.0042.0002.00 on R2

B. Configure the lo0 family ISO address 49.0002.0010.0042.0002.00 on R1

C. Enable Level 2 on R1’s ge-0/0/1 interface

D. Disable Level 2 on R2’s ge-0/0/1 interface

Which protocol prevents loops and calculates the best path through a switched network that contains redundant paths?

A. VRRP

B. STP

C. DHCP

D. IS-IS

Which statement is true when using LAGs with an EX4300?

A. Speeds on member links can differ.

B. Member links must be contiguous.

C. Half duplex is supported on the LAG.

D. You can have up to 16 member links per LAG.

Click the Exhibit button.
 
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?

A. Remove the overloaded statement from Router-1.

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

C. Change the ISO areas on the lo0 interfaces to match on both routers.

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

You configured a GRE tunnel that traverses a path using default MTU settings. You want to ensure that packets are not dropped of fragmented.
In this scenario, what is the maximum packet size that would traverse the GRE tunnel?

A. 1500

B. 1400

C. 1524

D. 1476

When electing a DIS in an IS-IS network, what is used to break a priority tie?

A. highest MAC address

B. highest router ID

C. lowest MAC address

D. lowest router ID

Which two OSPF header fields must match to form an adjacency over a broadcast connection? (Choose two.)

A. router priority

B. options

C. hello interval

D. neighbor

Which statement is true about IP-IP tunnels?

A. Intermediate devices must have a route to the destination address of the traffic being tunneled.

B. Intermediate devices must have a route to both the tunnel source address and the tunnel destination address.

C. Intermediate devices must have a route to the tunnel destination address but do not require a route to the tunnel source address.

D. Intermediate devices must have a route to the tunnel source address but do not require a route to the tunnel destination address.

Which area is reserved for the OSPF backbone?

A. Area 0.0.0.0

B. Area 1.1.1.1

C. Area 2.2.2.2

D. Area 3.3.3.3

Click the Exhibit button.
 
Referring to the exhibit, which router becomes the OSPF DR when all routers are powered on at the same time?

A. R3

B. R4

C. R1

D. R2

Which statement is They are stateless and evaluated by the control plane true about Layer 2 firewall filters on EX Series switches?

A. They are stateful and evaluated by the forwarding plane.

B. They are stateless and evaluated by the control plane.

C. They are stateful and evaluated by the control plane.

D. They are stateless and evaluated by the forwarding plane.

When configuring firewall filters, which function does the interface-specific parameter enable on an EX Series switch?

A. The interface-specific parameter is required to configure port-specific counters.

B. The interface-specific parameter is required to configure VLAN-specific counters.

C. The interface-specific parameter is required to configure VLAN-based filters.

D. The interface-specific parameter is required to configure port-based firewall filters.

What are two benefits of 802.3ad link aggregation? (Choose two.)

A. It increases bandwidth.

B. It ensures symmetrical paths.

C. It simplifies interface configuration.

D. It creates physical layer redundancy.

Which two routes belong to the 172.16.0.0/22 aggregate route? (Choose two.)

A. 172.16.4.0/24

B. 172.16.0.0/24

C. 172.16.5.0/24

D. 172.16.3.0/24

What are two reasons for configuring more than one VLAN on a switch? (Choose two.)

A. A group of clients requires that security be applied to traffic entering or exiting the group’s devices.

B. A group of devices must forward traffic across a WAN.

C. A group of devices are connected to the same Layer 3 network.

D. A group of clients requires that the group’s devices receive less broadcast traffic than they are currently receiving.

Referring to the exhibit, which configuration will force traffic to always use ae0.0 as long as it is active?
A.
 
B.
 
C.
 
D.
 

Click the Exhibit button.
 
Which statement is true about the configuration shown in the exhibit?

A. Only the local-pref import policy will be evaluated when routes are learned from neighbor 172.30.1.1

B. Only the add-community import policy will be evaluated when routes are learned from neighbor 172.30.1.1

C. No import policy will be evaluated when routes are learned from neighbor 172.30.2.1

D. Both the add-community and local-pref import policies will be evaluated when routes are learned from neighbor 172.30.2.1

What are two advantages of a point-to-point OSPF adjacency? (Choose two.)

A. Only a DR is elected.

B. No type 1 LSAs are generated.

C. No type 2 LSAs are generated.

D. There is quicker neighbor establishment.

Which three mechanisms are associated with the bridging process? (Choose three.)

A. blocking

B. flooding

C. aging

D. filtering

E. listening

What are two characteristics of OSPF ABRs? (Choose two.)

A. ABRs transmit routing information between the backbone and other areas.

B. ABRs cannot be part of the backbone and another area at the same time.

C. ABRs inject routing information from outside the OSPF domain.

D. ABRs link two OSPF areas.

What is the default BGP group type on a Junos device?

A. internal

B. external

C. multihop

D. null

Click the Exhibit button.
 
Referring to the exhibit, all users connected to the same VLAN can communicate with each other, but not with users on other VLANs in this network.
What must be configured to enable communication between the VLANs?

A. The switch ports to which the users are connected should be configured as trunk ports.

B. A separate routing device is required to forward traffic between the configured VLANs.

C. A logical IRB interface must be created and assigned to each VLAN.

D. A single logical IRB interface must be created and assigned to all three VLANs.

What are two methods for reducing the size of an OSPF link-state database? (Choose two.)

A. Use unique router IDs where possible.

B. Use identical link metrics where possible.

C. Use point-to-point interface types where possible.

D. Use stub areas where possible.

Click the Exhibit button.
 
You manage the Layer 2 network shown in the exhibit. You experience a failure on the ge-0/0/0 link between Switch-1 and Switch-2.
Which statement is correct about the expected behavior?

A. Switch-2 will remove itself from the RSTP topology

B. Switch-2’s ge-0/0/2 port role and state will transition to root and forwarding

C. Switch-2 will become the root bridge for a separate RSTP topology

D. Switch-2’s ge-0/0/2 port role and state will remain as designated and forwarding

Which static route next-hop value indicates that the packet will be silently dropped?

A. resolve

B. discard

C. reject

D. next-table

Click the Exhibit button.
 
In the exhibit, each IP subnet in the network is associated with a unique VLAN ID.
Which action will ensure that Host C will communicate with Host A and Host B?

A. Configure an IRB interface for each VLAN and associate it with its corresponding VLAN

B. Configure a port-based ACL that permits inter-VLAN routing for all configured VLANs

C. Configure all switch ports connecting to the host devices as trunk ports associated with all VLANs

D. Configure all switch ports connecting to the host devices as access ports associated with a common VLAN

Which two characteristics are true for EBGP peerings? (Choose two.)

A. EBGP peers must be directly connected.

B. EBGP connects peer devices in the same autonomous system.

C. EBGP connects peer devices in two different autonomous systems.

D. EBGP peers can be connected over a multihop connection.

Click the Exhibit button.
 
You are attempting to set up VRRP with R1 and R2 being participating members. You want R1 to be the master router and R2 to be the backup router with the virtual router they create being at address 172.25.100.1. The virtual router is not pinging from either User A or User B.
Referring to the exhibit, what must be done to correct the problem?

A. A VRRP policy is needed on R1 and R2.

B. The VRRP group value on R1 and R2 must match.

C. The VRRP priority value on R1 and R2 must match.

D. A VRRP authentication type value is needed on R1 and R2.

Which two requirements must be satisfied before graceful restart will work? (Choose two.)

A. a stable network topology

B. a neighbor configured with BFD

C. a neighbor configured with graceful restart

D. a neighbor with an uptime greater than an hour

You want to configure Layer 2 services over an IP-based tunneling mechanism between two sites.
Which configuration statement is required to accomplish this task?

A. set interfaces gr-0/0/0.0 family bridge

B. set interfaces ip-0/0/0.0 encapsulation vlan-bridge

C. set interfaces gr-0/0/0.0 encapsulation vlan-bridge

D. set interfaces ip-0/0/0.0 family bridge