[2021年12月26日] 365日無料更新JN0-648知能問題集をゲット [Q36-Q53]

[2021年12月26日] 365日無料更新JN0-648知能問題集をゲット

ベスト品質のJuniper JN0-648試験問題

質問 36

A. Apply a BGP export policy on R1 to assign a lower MED value to routes advertised to ISP A.
B. Apply a BGP export policy to R2 to prepend [65001 65001 65001 65001 65001] to the AS path of routes advertised to ISP B.
C.
D. Apply a BGP export policy on R1 to assign a higher local preference value to routes advertised to ISP
E. Apply a BGP export policy onR2to assign a lower origin value to routes advertised to ISP B.

正解: B

質問 37
Exhibit:

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 protocol bop group BGP-MESH export NH3
B. set policy-option, policy-statement NHS term BGP_ROUTES from external
C. delete protocols bgp group BGP-MESH peer-as
D. set protocols bgp group BGP-HESH import NHS

正解: B

質問 38
You will to route Layer 3 PVLAN traffic within the secondary VLAN.
What is required to accomplish this task?

A. an isolated VLAN
B. a community VIAN
C. an IRB
D. an FBF policy

正解: C

質問 39
Exhibit.

Referring to the exhibit, which two statements are true with regards to deploying CoS? (Choose two.)

A. You should apply BA classifiers on the LAN-facing interfaces of the routers
B. You should apply BA classifiers on the point-to point interfaces of the routers.
C. You should apply MF classifiers on the LAN-facing interfaces of the routers
D. You should apply MF classifiers on the point-to-point interfaces of the routers

正解: B,C

解説:
BA classifiers are based on fixed-length fields in the packet header, which makes them computationally more efficient than MF classifiers. Therefore core devices that handle high traffic volumes are normally configured to perform BA classification. The BA classifier maps packets to a forwarding class and a loss priority. The forwarding class determines the output queue for a packet. The loss priority is used by a scheduler to control packet discard during periods of congestion.
MF classification is normally performed at the network edge because of the general lack of support for DSCP or IP precedence classifiers in end-user applications. On an edge switch, an MF classifier provides the filtering functionality that scans through a variety of packet fields to determine the forwarding class for a packet. Typically, any classifier performs matching operations on the selected fields against a configured value.
https://www.juniper.net/documentation/us/en/software/junos/cos-ex/topics/concept/cos-ex-series-classifiers-understanding.html

質問 40
Exhibit:

You have applied the CoS configuration shown in the exhibit to an EX4300 switch.
Which two statements are true? (Choose two. )

A. Packets in low priority queues are serviced when strict-high priority queues have no available credits
B. All strict-high priority queues are serviced in a round-robin fashion regardless of available credits.
C. Packets in low priority queues transmit only when start-high priority queues are empty
D. All strict-high priority queues are serviced in a round-robin fashion as long as they have remaining credits

正解: C,D

質問 41
You want to view the VLANs that have been created dynamically using MVRP.
Which operational mode command will display this information?

A. Show mvrp registration-state
B. Show mvrp applicant-state
C. Show mvrp dynamic-vlan memberships
D. Show mvrp interface

正解: C

質問 42
Click the Exhibit button.

Referring to the exhibit, which statement is true?

A. Only 802.1X authentication will be used for devices connecting to ge-0/0/15.
B. Additional users will automatically be allowed to connect to ge-0/0/15.
C. The current device is authenticated using MAC RADIUS.
D. The current device was allowed after authentication attempts to the RADIUS server failed.

正解: D

解説:
Explanation/Reference:

質問 43
Exhibit:

You are configuring, the PVLAN feature on your switches. The PVLAN will span the two EX Series switches shown in the exhibit Which three configuration parameters must be enabled on the ports connecting the two switches? (Choose three. )

A. family Ethernet-switching
B. family inet
C. interface-mode trunk
D. interface-mode access
E. inter-switch-link

正解: A,C,E

質問 44
Exhibit.

Which two statements are true about the 802. 1X output shown in the exhibit? (Choose two.)

A. The supplicant is not authenticated using 802. 1X
B. EAPoL traffic will be sent out of the ge-0/0/1 interface.
C. The supplicant is authenticated using 802. 1X
D. EAPoL traffic will not be sent out of the use ge-0/0/1 interface

正解: A,B

質問 45
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. set protocols bgp group BGP-MESH import NHS
B. delete protocols bgp group BGP-MESH export NHS
C. delete protocols bgp group BGP-MESH peer-as
D. set policy-options policy-statement NHS term BGP_ROUTES from external

正解: D

解説:
Explanation/Reference:

質問 46
Exhibit:

Your IS-IS adjacency is not established as shown in the exhibit. What is the problem?

A. There is an MTU mismatch
B. There is an invalid IPv4 router ID
C. There is an invalid IPv6 router ID
D. There is an area mismatch

正解: D

質問 47
You are designing a multicast topology to support IPv4 IPTV broadcasts in your organization. The design should support multiple multicast senders with overlapping group addresses while preventing interference between them. Client devices currently do not support IGMPv3.
Which approach would fulfill these requirements?

A. Implement MLD
B. Assign group addresses in the 224/4 range and implement PIM-DM
C. Implement PIM-SM and SSM with SSM maps to support IGMPv2 clients
D. Implement bidirectional PIM

正解: B

質問 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. The Fusion extended ports are configured on the SDs.
C. The AD runs the Junos software for all its connected SDs.
D. SDs are added to the AD by configuring the cascade port on the AD.

正解: B,D

質問 49
Click the Exhibit button.

Referring to the exhibit, which two statements are true regarding Q-in-Q tunneling? (Choose two.)

A. The C-VLAN traffic will be encapsulated with an outer VLAN tag of 10.
B. The C-VLAN 150 will be sent as the inner VLAN tag.
C. The C-VLAN traffic will be encapsulated with an outer VLAN tag of 150.
D. The C-VLANs 100-200 will be sent as the inner VLAN tag.

正解: A,D

解説:
Explanation/Reference:

質問 50
Exhibit:

A router is attempting to form an OSPF neighborship with another router However, the OSPF neighborship tails to establish completely Referring to the exhibit, what is the problem?