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.

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

A. forwarding

B. learning

C. discarding

D. listening

E. tagging

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 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.
 
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 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 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

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

You added a new ESXi host connected to port ge-0/0/1. One of the VMs configured with VLAN 10 is not reachable from any other device on the switch. To troubleshoot, you decide to verify if the VM's MAC address is learned properly under VLAN 10.
Which command would you use in this scenario?

A. show ethernet-switching table vlan-id 10

B. show interfaces ge-0/0/1 detail

C. show vlans 10

D. monitor interface ge-0/0/1

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

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 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.

Which two elements are used to create the STP bridge ID? (Choose two.)

A. the root port number

B. the bridge priority value

C. the system MAC address

D. the port cost

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

Click the Exhibit button.
 
Referring to the output shown in the exhibit, which two statements are true?

A. The route is active

B. The route is not active

C. The route is a generate route

D. The route is an aggregate route

Which two statements are correct regarding the root bridge election process when using STP? (Choose two.)

A. A lower system MAC address is preferred.

B. A higher bridge priority is preferred.

C. A lower bridge priority is preferred.

D. A higher system MAC address is preferred.

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

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.

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.
 
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 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 correct about trunk ports?

A. Trunk ports must have an IRB assigned to accept VLAN tagged traffic.

B. By default, trunk ports accept only VLAN tagged traffic.

C. By default, a trunk port can have only a single VLAN assigned.

D. trunk ports must have an IRB assigned to accept untagged traffic.

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.

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.

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

A. 20

B. 24

C. 12

D. 16

Your network connections to the Internet through two different ISPs using EBGP. You must ensure that ISP1 is the primary path used for all traffic entering your network while using ISP2 as a backup path.
In this scenario, which statement is correct?

A. You should use a lower MED value on routes sent to ISP1.

B. You should assign a higher local preference on routes that you are sending to ISP1.

C. You should change the next hop for all routers sent to ISP2.

D. You should prepend your local AS number three times on routes that you are sending to ISP2.

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

You want to use filter-based forwarding (FBF) to forward traffic sourced from subnet 10.0.0.0/24 to a specific destination.
Which two routing instance types would enable you to accomplish this task? (Choose two.)

A. virtual switch

B. virtual routing and forwarding

C. virtual router

D. forwarding

Your network is configured with dynamic ARP inspection (DAI) using the default parameters for all the DHCP and ARP related configurations. You just added a new device connected to a trunk port and configured it to obtain an IP address using DHCP.
Which two statements are correct in this scenario? (Choose two.)

A. The DHCP server assigns the IP addressing information to the new device.

B. DAI validates the ARP packets for the new device against the DHCP snooping database.

C. The ARP request and response packets for the new device will bypass DAI.

D. DHCP snooping adds the DHCP assigned IP address for the new device to its database.

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 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

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

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.

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.
 
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 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 port security features use the DHCP snooping database for additional port security? (Choose two.)

A. dynamic ARP inspection

B. MACsec

C. IP Source Guard

D. MAC learning

Click the Exhibit button.
 
Referring to the exhibit, Router-1 is attempting to form an EBGP session with Router-2. However, BGP routes are never exchanged between Router-1 and
Router-2.
What is causing the problem?

A. The TCP-MSS value is set too low

B. The EXT group is not configured as an external type BGP peering session

C. The EBGP session is configured to use the wrong AS

D. The keep all statement is preventing the session from establishing

Which two sequences correctly describe the processing order of firewall filters on an EX Series switch? (Choose two.)

A. router filter > VLAN filter > port filter > transmit packet

B. port filter > VLAN filter > router filter > transmit packet

C. receive packet > port filter > VLAN filter > router filter

D. receive packet > router filter > VLAN filter > port filter

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.

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.

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

You want to advertise only a default route into a new area, which will be called area 7.
In this scenario, which configuration statement would solve this problem?

A. user@host# set protocols ospf area 0.0.0.7 nssa default-lsa default-metric 10

B. user@host# set protocols ospf area 0.0.0.7 stub no-summaries

C. user@host# set protocols ospf area 0.0.0.7 stub default-metric 10

D. user@host# set protocols ospf area 0.0.0.7 stub

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.

You have configured the router with an IS-IS interface metric of 2048. However, the IS-IS interface metric of 63 is being applied for the interface of this router.
What must you do to enable the larger metric value?

A. Enable wide metrics.

B. Disable narrow metrics.

C. Restart the IS-IS protocol.

D. Enable level 1 IS-IS routing.

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 two statements are correct? (Choose two.)

A. Router A does not send routes learned from Router E to Router B, Router C, and Router D

B. Router A sends routes learned from Router E to Router B, Router C, and Router D

C. Router A sends routes learned from Router D to Router B and Router C

D. Router A does not send routes learned from Router D to Router B and Router C

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

A. internal

B. external

C. multihop

D. null