[Q26-Q47] 合格させるJN0-649試験一発合格保証100%カバー率でリアル試験問題 [2023年12月]

合格させるJN0-649試験一発合格保証100%カバー率でリアル試験問題 [2023年12月]

有効なJN0-649テスト解答Juniper JN0-649試験PDF問題を試そう

Juniper JN0-649試験は、ネットワークエンジニアの企業向けルーティングとスイッチングにおける知識とスキルを測定する認定試験です。この試験に合格することは、Juniper Networks Certified Professional Enterprise Routing and Switching（JNCIP-ENT）認定を取得するための要件です。JNCIP-ENT認定は、Juniper Networksテクノロジーを使用して複雑な企業レベルのネットワークを設計および構成する専門知識を持つ個人を示します。

Juniper JN0-649認定試験は、Juniper Networksのエンタープライズルーティングおよびスイッチングテクノロジーを扱うために必要な知識とスキルをテストするために設計された専門レベルの試験です。この試験は、Juniper NetworksのEnterprise Networking Solutionsとの協力に少なくとも2年の経験があるネットワークの専門家を対象としています。このような専門家は、Juniperのエンタープライズルーティングとスイッチングテクノロジーを効果的に実装、構成、およびトラブルシューティングできる必要があります。

質問 # 26
Which three configuration parameters must match on all switches within the same MSTP region?
(Choose three.)

A. configuration name
B. bridge priority
C. region name
D. revision level
E. VLAN to instance mapping

正解：A、C、D

質問 # 27
There are two BGP routes to 10.200.200.0/24 received from two external peers. Route 1 comes from a neighbor with a router ID of 10.10.100.1 and a peer IP address of 10.10.30.1, and route 2 comes from a neighbor with a router ID of 10.10.200.1 and a peer IP address of 10.10.50.1. Both routes have the same MED value, origin value, AS path length, and local preference number. In this scenario, which statement is correct about the active route?

A. Route 1 will be active because of the peer IP address.
B. Route 2 will be active because of the router ID.
C. Route 1 will be active because of the router ID.
D. Route 2 will be active because of the peer IP address.

正解：B

質問 # 28
Referring to the exhibit, which two statements are correct? (Choose two.)

A. DS-1 is the root bridge for VLAN 10.
B. Default VSTP bridge priority values are configured.
C. BPDUs from the root bridge for VLAN 20 have been received on the ge-0/0/7.0 interface.
D. BPDUs from the root bridge for VLAN 10 have been received on the ge-0/0/7.0 interface.

正解：C、D

質問 # 29
You are troubleshooting a BGP connection.
Referring to the exhibit, which two statements are correct? (Choose two.)

A. The 192.168.1.4 peer has a misconfigured autonomous system number.
B. Packet fragmentation is preventing the session from establishing.
C. The ge-0/0/1 interface is disabled.
D. The 192.168.1.5 peer has a misconfigured MD5 key.

正解：A、D

質問 # 30
A modified deficit round-robin scheduler is defined by which three variables? (Choose three.)

A. priority
B. Layer 3 fields
C. WRED
D. transmit rate
E. buffer size

正解：A、C、D

質問 # 31
Your campus EX9200 core devices are highly oversubscribed on bandwidth ans reporting massive dropped packets.
To immediately address the issue, you decide to implement shaping on all interfaces.
Which action will accomplish?

A. Apply the shape-rate 5G parameter to all interfaces under the [edit class-of service] hierarchy.
B. Define a CoS input traffic control profile with the shape-rate 5G parameter and apply it to all interfaces.
C. Apply the input-shape-rate 5G parameter to all interfaces under the [edit class-of service] hierarchy.
D. Define a CoS output traffic control profile with the shape-rate 5G parameter and apply it to all interfaces.

正解：D

解説：
https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/cos-shaping-rate- on-physical-interfaces-configuring.html

質問 # 32
What are two supported PoE management modes? (Choose two.)

A. mixed
B. standalone
C. class
D. static

正解：C、D

質問 # 33
Which protocol is used for port-level access control and authentication?

A. MD5
B. IPsec
C. AES
D. 802.1x

正解：D

質問 # 34
Referring to the exhibit, how will router E quickly learn that the remote MAC addresses are no longer reachable through the router attached to the failed link?

A. Router E receives Type 2 withdrawal messages from router C.
B. Router E receives Type 1 withdrawal messages from router D.
C. Router E receives Type 1 withdrawal messages from router C.
D. Router E receives Type 2 withdrawal messages from router D.

正解：B

質問 # 35
Your enterprise network uses routing instances to support multitenancy. Your Junos devices use BGP to peer to multiple BGP devices. You must ensure that load balancing is achieved within the routing instance.
Which two statements would accomplish this task? (Choose two.)

A. Configure the multipath option at the [edit routing-instances <instance-name> routing-options] hierarchy.
B. Configure a load-balance per-packet policy and apply it at the [edit routing-options forwarding- table] hierarchy.
C. Configure the multipath option at the [edit protocols bgp group] hierarchy.
D. Configure the multipath option at the [edit protocols bgp group <group-name> neighbor] hierarchy.

正解：A、C

質問 # 36
You want to provide Layer 2 connectivity between campus sites using Ethernet switches through a metro Ethernet service provider who is using Q-in-Q tagging on their network.
Referring to the exhibit, what are two design considerations in this environment? (Choose two.)

A. VXLAN could be implemented on your network across this service provider network.
B. Each campus switch shown must have S-Tag 300 configured.
C. Each campus switch shown must have a C-Tag 300 configured.
D. L2PT is required on the SP network to support the spanning tree protocol.

正解：B、D

質問 # 37
When configuring class of services, what would be you use to allocate bandwidth to a forwarding class?

A. speed
B. bandwidth
C. buffer depth
D. transmit rate

正解：D

質問 # 38
BGP multipath or multihop are not configured in your network.
In this scenario, what is the correct sequence for BGP active route selection?

A. higher local preference
shortest AS path
lowest router ID
lowest peer address
lower origin code
B. higher local preference
shortest AS path
lowest peer address
lowest router ID
lower origin code
C. higher local preference
lowest router ID
lowest peer address
lower origin code
shortest AS path
D. higher local preference
shortest AS path
lower origin code
lowest router ID
lowest peer address

正解：D

解説：
BGP Path Selection process follows this order
1.Weight (Bigger is better)
2. Local preference (Bigger is better)
3. Self originated (Locally injected is better than iBGP/eBGP learned)
4. AS-Path (Smaller is better)
5. Origin
6. MED (Smaller is better)
7. External (Prefer eBGP over iBGP)
8. IGP cost (Smaller is better)
9. EBGP Peering (Older is better)
10. Router- ID
http://www.next-itsolutions.co.uk/wp-content/uploads/2015/09/CCIE-BGP-Best-Path-Selection1.png
https://www.juniper.net/documentation/us/en/software/junos/vpn-l2/bgp/topics/concept/routing-protocols-address-representation.html

質問 # 39
The policy shown in the exhibit is applied as an export policy to your BGP neighborship.
Which action will be taken for route 12.233.45.5?

A. It will be accepted by the default policy
B. It will be accomplished by term 1.
C. It will be rejected by term 2.
D. It will be accepted by term 1.
E. It will be evaluated by the next policy.

正解：C

質問 # 40
Click the Exhibit button. Referring to the exhibit, how is R5 able to learn the networks that exist within the NSSA?

A. R5 does not learn those networks and uses a default route advertised by R3 instead.
B. R5 does not learn those networks but uses a default route advertised by R2 instead.
C. R5 learns those networks from Type 3 LSAs advertised by R2.
D. R5 learns those networks from Type 3 LSAs advertised by R3.

正解：D

質問 # 41
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. inter-switch-link
B. interface-mode trunk
C. family Ethernet-switching
D. family inet
E. interface-mode access

正解：A、B、C

質問 # 42
You are troubleshooting an EVPN-VXLAN IP fabric and observe the loop shown in the exhibit.
Which two steps would you take to further troubleshoot this problem? (Choose two.)

A. Issue the show route table bgp.evpn.0 command on Leaf2 and verify that Type 4 routes are present.
B. Issue the show route table bgp.evpn.0 command on Leaf2 and verify that Type 3 routes are present.
C. Verify that the same ESI is configured on the link from the host and that it matches the source.
D. Verify that the same ESI is configured on the two links from the source.

正解：A、B

解説：
Type 2 route, MAC with IP advertisement route-Type 2 routes are per-VLAN routes, so only PEs that are part of a VNI need these routes. EVPN allows an end host's IP and MAC addresses to be advertised within the EVPN Network Layer reachability information (NLRI). This allows for control plane learning of ESI MAC addresses. Because there are many Type 2 routes, a separate route-target auto-derived per VNI helps to confine their propagation. This route type is supported by all EVPN switches and routers. Type 5 route, IP prefix Route-An IP prefix route provides encoding for inter-subnet forwarding. In the control plane, EVPN Type 5 routes are used to advertise IP prefixes for inter-subnet connectivity across data centers. To reach a tenant using connectivity provided by the EVPN Type 5 IP prefix route, data packets are sent as Layer 2 Ethernet frames encapsulated in the VXLAN header over the IP network across the data centers.

質問 # 43
Your EX Series switch has IP telephones and computers connected to a single switch port. You are considering implementing the voice VLAN feature to help with this setup. In this scenario, which two statements are correct? (Choose two.)

A. The voice VLAN feature will enable incoming tagged data and voice traffic to be associated with separate VLANs.
B. Assigning the incoming voice and data traffic to separate VLANs enables the ability to prioritize the traffic using CoS.
C. The voice VLAN feature must be used with LLDP-MED to associate VLAN ID and 802.1p values with the traffic.
D. The interfaces must be configured as access ports.

正解：B、D

質問 # 44
Referring to the exhibit, which two statements are correct? (Choose two.)

A. The BGP neighbor cannot advertise L3 VPN related routes.
B. The BGP neighbor can advertise EVPN related routes.
C. The BGP neighbor cannot advertise EVPN related routes.
D. The BGP neighbor can advertise L3 VPN related routes.

正解：B、D

質問 # 45
You are asked to configure 802.1X on your access ports to allow only a single device to authenticate. In this scenario, which configuration would you use?