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Latest Juniper JN0-648 Exam Practice Questions and Answers
QUESTION 1
You are deploying PIM source-specific multicast (SSM) for a new multicast messaging service. You have configured the
multicast source to use 235.44.123.100 as the multicast address. You are not able to join the PIM SSM multicast feed.
Which two solutions would resolve this problem? (Choose two.)
A. Reconfigure the multicast source to use an address in the range of 224.0.0.0 through 224.255.255.255.
B. Reconfigure the multicast source to use an address in the range of 232.0.0.0 through 232.255.255.255.
C. Add the multicast address to the [edit routing-options multicast ssm-map] stanza.
D. Add the multicast address to the [edit routing-options multicast ssm-groups] stanza.
Correct Answer: BD
QUESTION 2
Click the Exhibit button.
You are investigating reports of increased latency and discover that some routes cause customer traffic to traverse a
route reflector instead of the optimal path. Referring to the exhibit, which configuration statement would solve the
problem?
A. delete protocols BGP group BGP-MESH peer-as
B. set policy-options policy-statement NHS term BGP_ROUTES from external
C. set protocols BGP group BGP-MESH import NHS
D. delete protocols BGP group BGP-MESH export NHS
Correct Answer: B
QUESTION 3
In a Layer 2 environment where 802.1X is deployed, which two statements are correct? (Choose two.)
A. RADIUS messages are exchanged between the supplicant and the authenticator.
B. RADIUS messages are exchanged between the authenticator and the authentication server.
C. Extensible Authentication Protocol messages are exchanged between the authenticator and the authentication
server.
D. Extensible Authentication Protocol messages are exchanged between the supplicant and the authenticator.
Correct Answer: BD
QUESTION 4
Click the Exhibit button.
A router is attempting to form an OSPF neighborship with another router. However, the OSPF neighborship fails to
establish completely.
Referring to the exhibit, what is the problem?
A. There is an interface type mismatch.
B. There is an interface subnet mask mismatch.
C. There is an OSPF area mismatch.
D. There is an interface MTU mismatch.
Correct Answer: A
QUESTION 5
What are the three well-known mandatory BGP attributes? (Choose three.)
A. MED
B. AS-path
C. origin
D. next-hop
E. community
Correct Answer: BCD
QUESTION 6
Click the Exhibit button.
You receive the same 75.100.0.0/16 route from all four ISPs to which you are connected. Referring to the exhibit, which
ISP\\’s route will be selected as active?
A. ISP-D
B. ISP-C
C. ISP-B
D. ISP-A
Correct Answer: A
QUESTION 7
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
Correct Answer: A
QUESTION 8
When configuring a class of service, what would you use to allocate bandwidth to a forwarding class?
A. buffer depth
B. transmit rate
C. bandwidth
D. speed
Correct Answer: B
QUESTION 9
You have configured class mode power management on an EX4300 to provide PoE power to telephone and security
camera equipment. You want to ensure that security camera power takes priority over telephone power. Which two
actions would solve this problem? (Choose two.)
A. Connect the security cameras to the lowest port numbers on the switch.
B. Set the power priority to high on ports connected to security cameras.
C. Set the maximum power settings on ports connected to security cameras.
D. Set the power priority to low on ports connected to security cameras.
Correct Answer: AB
QUESTION 10
Click the Exhibit button.
You have configured and applied the policer shown in the exhibit to your Junos device. Which statement is true in this
scenario?
A. Traffic exceeding the committed-burst size will be marked with a loss priority of high.
B. Traffic exceeding the excess-burst size will be discarded.
C. Traffic exceeding the committed-information-rate will be rate limited.
D. Traffic exceeding the committed-burst size will be discarded.
Correct Answer: A
QUESTION 11
Which protocol is used for port-level access control and authentication?
A. MD5
B. IPsec
C. 802.1X
D. AES
Correct Answer: C
QUESTION 12
Click the Exhibit button.
Referring to the exhibit, how is R5 able to learn the networks that exist within the NSSA?
A. R5 learns those networks from Type 3 LSAs advertised by R2.
B. R5 learns those networks from Type 3 LSAs advertised by R3.
C. R5 does not learn those networks and uses a default route advertised by R3 instead.
D. R5 does not learn those networks but uses a default route advertised by R2 instead.
Correct Answer: D
QUESTION 13
Which two statements are correct about a functional ESI LAG interface? (Choose two.)
A. The LACP system ID must be the same.
B. The ESI values must be the same.
C. The LACP system ID must be different.
D. The ESI values must be different.
Correct Answer: AB
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