Juniper
Exam Name: QFabric, Specialist (JNCIS-QF)
Exam code: JN0-370
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Question:
1
|
Which three statements are
correct about the QFabric system control plane? (Choose three.)
A. It discovers and manages
paths.
B. It manages FCoE-to-FC
conversions.
C. It manages Layer 2 and
Layer 3 load balancing between nodes and interconnects.
D. It discovers and
provisions the system.
E. It manages routing and
switching protocols.
Answer: A,D,E
|
Question:
2
|
The QFabric system data
plane performs which three functions? (Choose three.)
A. It provides
connectivity for network devices.
B. It manages routing and
switching protocols.
C. It interconnects Node
devices with the fabric.
D. It exchanges
reachability information.
E. It forwards traffic
through devices of the system.
Answer: A,C,E
|
Question:
3
|
You are determining the DC
power requirements for a QFX3000-M QFabric system. Which two devices support DC
power? (Choose two.)
A. a QFX3100 Director
device
B. a QFX3600-I
Interconnect device
C. a QFX3500 Node device
D. a QFX3800-I
Interconnect device
Answer: B,C
|
Question:
4
|
You configured a BGP
peering session between your QFabric system and an attached device, but the
session is not coming up. What are two reasons for this happening? (Choose
two.)
A. The inet protocol
family is not configured on the QFabric system.
B. There is a mismatching
MED attribute configured.
C. There are no RVIs
configured on the QFabric system.
D. The QFabric system is configured
with two network Node groups.
Answer: A,C
|
Question:
5
|
You have recently
connected an aggregated interface between a server Node group and a blade
chassis switch and the interface is down. Which three reasons would explain the
interface being down? (Choose three.)
A. The interface is using
an unsupported or malfunctioning transceiver.
B. Both sides of the
connection have set LACP active.
C. Both sides of the
connection have set LACP passive.
D. Aggregated interfaces
are only supported on the network Node group.
E. Spanning tree BPDUs
have been received on the aggregated interface.
Answer: A,C,E
|
Question:
6
|
Which Routing Engine (RE)
in a QFabric system acts as a BGP route reflector for internal reachability?
A. the server Node group RE
B. the network Node group
RE
C. the fabric control RE
D. the fabric manager RE
Answer: C
|
Question:
7
|
A customer wants to change
the management IP addresses for the fabric administrator and Director devices
after the initial setup is completed. Which command should the customer enter
on the Director device?
A.
/root/create_admin_configuration.sh
B.
/root/dcf_sfc_reset_configuration.sh
C.
/root/restart_sfc_initializtion.sh
D.
/root/reset_initial_configuration.sh
Answer: D
|
Question:
8
|
You are asked to configure
a link aggregation group (LAG) between a QFabric system and an attached MX
Series router. This LAG must support Layer 3 communications and must be
associated with multiple VLANs. Which configuration approach should you use?
A. Configure a Layer 3 LAG
with the native-vlan option while ensuring that all desired VLANs are part of
the native VLAN.
B. Configure a Layer 2 LAG
as a trunk port for the desired VLANs ensuring that the required RVIs are
defined and associated with those VLANs.
C. Configure a Layer 3 LAG
with the vlan-tagging option with the required logical units and the parameters
needed to support the desired VLANs.
D. Configure a Layer 2 LAG
with the vlan-tagging and inet options along with the required logical units
and parameters needed to support the desired VLANs.
Answer: B
|
Question:
9
|
A customer added a new
Node device under an existing Node group, but the new Node device is not
discovered by the fabric manager. Which two CLI commands should help with
troubleshooting? (Choose two.)
A. Use the show log
messages command on the new Node device.
B. Use the show fabric
administration inventory command on the fabric administrator.
C. Use the show
virtual-chassis protocol adjacency provisioning command on the Node group.
D. Use the show chassis
hardware command on the fabric administrator.
Answer: A,C
|
Question:
10
|
Host A is connected to
Node1 on VLAN10. Host B is connected to Node2 on VLAN20. VLAN interfaces for
both VLANs are configured on a QFabric system. Host A wants to connect to Host
B but the QFabric system is missing the ARP entry of Host B. Which statement is
true?
A. Node1 will generate the
ARP request for Host B and flood it in VLAN20.
B. The network Node group
will generate the ARP request for Host B in VLAN20.
C. Node2 will generate the
ARP request in VLAN 20.
D. Node1 will drop the
packet.
Answer: B
|
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