Juniper JN0-648 Online Practice Questions and Exam Preparation

Juniper JN0-648 Online Questions & Answers

• Question 41:

  Click the Exhibit button.

  

  You are adding VNI 101 to your EVPN-VXLAN network, but traffic is not being sent or received. Referring to the exhibit, which configuration statement will solve the problem?

  A. set routing-instances EVPN1 instance-type evpn
  B. set routing-instances EVPN1 vrf-table-label
  C. set routing-instances EVPN1 bridge-domains BD-101 vxlan vni 101
  D. set routing-instances EVPN1 vxlan encapsulate-inner-vlan
  A. set routing-instances EVPN1 instance-type evpn

• Question 42:

  When configuring 802.1X authentication, what are three server fail fallback settings? (Choose three.)

  A. log
  B. sustain
  C. permit
  D. count
  E. move
  B. sustain
  C. permit
  E. move

• Question 43:

  In IS-IS, advertising PDUs with the overload-bit has which effect?

  A. The local device will no longer be used for transit traffic.
  B. The IS-IS adjacencies enter the "new" state.
  C. The local device's PDUs are marked with a metric of 65535.
  D. The IS-IS adjacencies become passive.
  A. The local device will no longer be used for transit traffic.

• Question 44:

  Click the Exhibit button.

  

  There is a functioning OSPFv3 neighborship between Router-1 and Router-2 over the ge-0/0/1 link. However, the 172.100.100.0/24 and 172.101.101.100/24 routes are not being shared through OSPFv3. Referring to the configuration shown in the exhibit, which two actions must you take to solve the problem? (Choose two.)

  A. Add interface ge-0/0/1 under the IPv4 unicast realm for both routers.
  B. Add the IPv6 family protocol under ge-0/0/2 for both routers.
  C. Add the lo0 interface under OSPFv3 for both routers.
  D. Add interface ge-0/0/2 under OSPFv3 for both routers.
  A. Add interface ge-0/0/1 under the IPv4 unicast realm for both routers.
  B. Add the IPv6 family protocol under ge-0/0/2 for both routers.

• Question 45:

  Click the Exhibit button.

  

  You have a workstation and a VoIP phone connected to port ge-0/0/1 on an access switch. Referring to the exhibit, which two statements are true? (Choose two.)

  A. Frames that exit interface ge-0/0/1 on the data VLAN will be tagged.
  B. The phone will automatically be assigned a VLAN ID.
  C. Voice frames that enter interface ge-0/0/1 will be forwarded as expedited forwarding traffic.
  D. All frames that exit interface ge-0/0/1 will belong to the data VLAN.
  A. Frames that exit interface ge-0/0/1 on the data VLAN will be tagged.
  C. Voice frames that enter interface ge-0/0/1 will be forwarded as expedited forwarding traffic.

• Question 46:

  You have an IPv4 multicast network configured as PIM-SM.

  What must be done before replacing your static RP with auto-RP?

  A. Enable sparse-dense mode on each of the routers in the network.
  B. Configure auto-RP domains on each router in the network.
  C. Configure each router in the network as a candidate BSR.
  D. Enable each router in the network to forward multicast packets.
  A. Enable sparse-dense mode on each of the routers in the network.

• Question 47:

  Click the Exhibit button.

  

  Referring to the log shown in the exhibit, what is the problem with the OSPF adjacency establishment?

  A. There is an MD5 authentication mismatch.
  B. The OSPF database description packet is malformed.
  C. The interface IP addresses on the subnet are duplicates.
  D. The referenced IP address does not exist on the network segment.
  C. The interface IP addresses on the subnet are duplicates.

• Question 48:

  Your network has Junos Fusion configured with MX960 routers as aggregation devices (AD) and QFX5100 switches as satellite devices (SD). Which two statements are correct in this scenario? (Choose two.)

  A. All SDs connected to a single AD must use the same software version.
  B. SDs are added to the AD by configuring the cascade port on the AD.
  C. The Fusion extended ports are configured on the SDs.
  D. The AD runs the Junos software for all its connected SDs.
  B. SDs are added to the AD by configuring the cascade port on the AD.
  C. The Fusion extended ports are configured on the SDs.

• Question 49:

  Click the Exhibit button.

  

  Referring to the exhibit, a PIM-SM network is set up to enable communication between multicast devices. Which statement is true in this scenario?

  A. After the formation of the shortest-path tree, a prune message is sent from R1 to R5.
  B. After the formation of the shortest-path tree, a prune message is sent from R1 to R2.
  C. After the formation of the shortest-path tree, a join message is sent from R5 to R1.
  D. After the formation of the shortest-path tree, a join message is sent from R1 to R5.
  B. After the formation of the shortest-path tree, a prune message is sent from R1 to R2.

• Question 50:

  You have PIM SM multicast configured and running in a network environment comprised of EX4300 devices. Your customers report increased delay when switching channels using IPTV. To help decrease the delay, you implement PIM join load balancing. You add the set protocols pim join-load- balance command to the configuration. After committing, you notice that the flows are still using only one path.

  In this scenario, which statement is correct?

  A. The clear pim join-distribution command must be issued.
  B. The interfaces must be specified to use for load balancing.
  C. IGMP snooping must also be configured.
  D. PIM join load-balancing only works for PIM-DM.
  A. The clear pim join-distribution command must be issued.