Juniper Juniper Certification JN0-649 Questions & Answers

• Question 61:

  A modified deficit round-robin scheduler is defined by which three variables? (Choose three.)

  A. priority

  B. WRED

  C. transmit rate

  D. Layer 3 fields

  E. buffer size

  Correct Answer: ABC

• Question 62:

  Which three MSTP parameters must match on all switches in the same MST region? (Choose three.)

  A. forwarding delay

  B. bridge priority

  C. revision number

  D. MSTI-to-VLAN mapping

  E. configuration name

  Correct Answer: CDE

  https://www.juniper.net/documentation/us/en/software/junos/stp-l2/topics/topic-map/spanning-tree-configuring-mstp.html

• Question 63:

  Which three configuration parameters must match on all switches within the same MSTP region? (Choose three.)

  A. VLAN to instance mapping

  B. revision level

  C. configuration name

  D. bridge priority

  E. region name

  Correct Answer: ABE

  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

• Question 64:

  Which two multicast listenerregistration protocols are supported in the Junos operating system? (Choose two.)

  A. MLD

  B. DVMRP

  C. IGMP

  D. PIM

  Correct Answer: AC

  internet Group Management Protocol (IGMP) and Multicast Listener Discovery (MLD) are the Multicast Group Membership Discovery (MGMD) protocols

• Question 65:

  Referring to the exhibit, which statement is correct when a failure exists on the link between host2 and switch5 on this EVPN-VXLAN fabric?

  

  A. The switch5 device will send a Type 2route to all peers.

  B. The switch5 device will send a Type 4 route to all peers.

  C. The switch5 device will send a Type 1 route to all peers.

  D. The switch5 device will send a Type 3 route to all peers.

  Correct Answer: D