You enable the Multiple VLAN Registration Protocol (MVRP) to automate the creation and management of virtual LANs.Which statement is correct in this scenario?
Answer(s): A
The forbidden mode does not register or declare VLANs. You can change the registration mode of a specific interface to forbidden. An interface in forbidden registration mode does not participate in MVRP even if MVRP is enabled on the switch.https://www.juniper.net/documentation/us/en/software/junos/multicast-l2/topics/topic- map/mvrp.htmlMVRP is disabled by default on the switches and, when enabled, affects only trunk interfaces. Once you enable MVRP, all VLAN interfaces on the switch belong to MVRP (the default normal registration mode) and those interfaces accept PDU messages and send their own PDU messages. forbidden-- The interface does not register or declare VLANS (except statically configured VLANs).
Which address range is used for source-specific multicast?
Answer(s): C
PIM SSM introduces new terms for many of the concepts in PIM sparse mode. PIM SSM can technically be used in the entire 224/4 multicast address range, although PIM SSM operation is guaranteed only in the 232/8 range (232.0.0/24 is reserved). The new SSM terms are appropriate for Internet video applications and are summarized in Table 1. https://www.juniper.net/documentation/us/en/software/junos/multicast/topics/concept/multicast- pim-ssm.html
Which three configuration parameters must match on all switches within the same MSTP region? (Choose three.)
Answer(s): A,B,E
When enabling MSTP, you define one or more MSTP regions. An MSTP region defines a logical domain where multiple spanning-tree instances (MSTIs) can be administered independently of MSTIs in other regions, setting the boundary for bridge protocol data units (BPDUs) sent by one MSTI. An MSTP region is a group of switches that is defined by three parameters:Region name--User-defined alphanumeric name for the region.Revision level--User-defined value that identifies the region.Mapping table--Numerical digest of VLAN-to-instance mappings. https://www.juniper.net/documentation/us/en/software/junos/stp-l2/topics/topic-map/spanning- tree-configuring-mstp.html
Which two statements are correct about the deployment of EVPN-VXLAN on QFX Series devices? (Choose two.)
Answer(s): C,D
BUM Traffic ForwardingJunos devices that use MPLS encapsulation for EVPNs can only use ingress replication at this time. Ingress replication means, to flood traffic to remote PE routers, the traffic has to be replicated, once for each remote PE router.The EVPN label for this BUM traffic is learned per PE router from the route type 3, inclusive multicast Ethernet tag route.This table shows the format of the inclusive multicast Ethernet tag route.All-Active Redundancy (4)This diagram shows the format of the type 1 route, A-D route per ES. The split horizon label is advertised as part of an extended community attached to the type 1 route. The split horizon label is also called the ESI label. The extended community also indicates what type of redundancy mode is used for this given ESI: single-active represented by binary 1 or active-active represented by binary 0.
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