경쟁이 치열한 IT업계에서 굳굳한 자신만의 자리를 찾으려면 국제적으로 인정받는 IT자격증 취득은 너무나도 필요합니다. Nokia인증 4A0-D03시험은 IT인사들중에서 뜨거운 인기를 누리고 있습니다. Pass4Test는 IT인증시험에 대비한 시험전 공부자료를 제공해드리는 전문적인 사이트입니다.한방에 쉽게Nokia인증 4A0-D03시험에서 고득점으로 패스하고 싶다면Pass4Test의Nokia인증 4A0-D03덤프를 선택하세요.저렴한 가격에 비해 너무나도 높은 시험적중율과 시험패스율, 언제나 여러분을 위해 최선을 다하는Pass4Test가 되겠습니다.
| Section | Weight | Objectives |
|---|---|---|
| Layer 3 EVPN Services | 25% | - EVPN Route Type 5 - VRF integration and route targets - Symmetric and asymmetric routing |
| Data Center Interconnect (DCI) Solutions | 25% | - BGP route policies and route reflectors - Interoperability with Nokia 7750 SR - Gateway-less EVPN DCI |
| SR Linux and EVPN Fundamentals | 25% | - SR Linux architecture and CLI - EVPN control plane and MP-BGP - VXLAN encapsulation and underlay |
| Layer 2 EVPN Services | 25% | - Multi-homing and Ethernet Segments - EVPN Route Types 1–4 - Anycast Gateway and IRB |
>> Nokia 4A0-D03적중율 높은 시험덤프공부 <<
Pass4Test의 Nokia 4A0-D03덤프는 Nokia 4A0-D03시험문제변경에 따라 주기적으로 업데이트를 진행하여 덤프가 항상 가장 최신버전이도록 업데이트를 진행하고 있습니다.구매한 Nokia 4A0-D03덤프가 업데이트되면 저희측에서 자동으로 구매시 사용한 메일주소에 업데이트된 최신버전을 발송해드리는데 해당 덤프의 구매시간이 1년미만인 분들은 업데이트서비스를 받을수 있습니다.
질문 # 43
Consider the exhibit.
Which of the following statements about the configuration and operation of this setup is FALSE?
정답：B
설명：
Comprehensive and Detailed 150 to 250 words of Explanation From [SR Linux EVPN and Data Center Interconnect/Course Guide/topics]:
This setup represents single-active Layer 2 EVPN multi-homing. In single-active mode, the Ethernet Segment is configured so that only one PE acts as the active forwarding node for a given service, while the other remains standby. The ports connecting to the host are associated with ES-1 so the EVPN control plane can perform Ethernet Segment discovery, DF election, and standby behavior. If Leaf1 is the active/DF node for the service, all traffic to and from the host flows through Leaf1 until a failure or DF transition occurs. Option D is false because a host LAG is not required for this single-active topology. A LAG is typically required for all-active L2 multi-homing, where the host must treat multiple physical links toward different leaf routers as one logical bundle. In single-active operation, the host can be connected through separate physical links or active/standby access behavior without requiring LACP bundling. The EVPN PEs enforce the active path selection through DF and ES state rather than relying on host-side LAG hashing. Reference: single-active EVPN multi-homing, Ethernet Segment port association, DF-controlled active forwarding.
질문 # 44
Which of the following statements about the decoupled gateway-based data center interconnect solution is TRUE?
정답：D
설명：
Comprehensive and Detailed 150 to 250 words of Explanation From [SR Linux EVPN and Data Center Interconnect/Course Guide/topics]:
A decoupled gateway-based DCI model separates the data center border-leaf function from the WAN PE function. This separation is the key design point. The border leaf remains part of the data center EVPN/VXLAN environment, while the WAN PE participates in WAN VPN transport and policy enforcement. Because the roles are split across two devices, the handoff between the border leaf and WAN PE provides a clean administrative and operational boundary. That boundary is useful for security policy, QoS marking, traffic classification, and troubleshooting ownership. The WAN does not need direct reachability to every leaf and route reflector as in a gateway-less model. The WAN PE also does not peer directly with the data center route reflector in a decoupled model; route exchange occurs through the border-leaf/WAN-PE handoff. VXLAN tunnels between leaf routers across different data centers are characteristic of gateway-less extension, not decoupled gateway operation. Therefore, the statement about clear demarcation between the data center border leaf and WAN PE is the accurate description. Reference: decoupled gateway-based DCI, security/QoS demarcation, WAN PE separation.
질문 # 45
Which EVPN route-type (RT) is used in multi-homing scenarios to support aliasing and fast convergence?
정답：B
설명：
Comprehensive and Detailed 150 to 250 words of Explanation From [SR Linux EVPN and Data Center Interconnect/Course Guide/topics]:
The EVPN route type used for aliasing and fast convergence in multi-homing is RT-1, the Ethernet Auto-Discovery route. RT-1 has two important forms: Ethernet A-D per Ethernet Segment and Ethernet A-D per EVI. These routes advertise reachability to a multi-homed Ethernet Segment and to a specific EVPN instance on that segment. Remote PEs use this information for aliasing, meaning they can forward traffic toward any eligible PE attached to the same Ethernet Segment, even when a specific MAC was advertised by only one PE. RT-1 also supports fast convergence because withdrawal of Ethernet A-D routes quickly informs remote PEs that an attachment path or PE is no longer valid, avoiding slow MAC aging as the primary failure-detection mechanism. RT-4 Ethernet Segment routes are related to multi-homing, but their main function is Ethernet Segment discovery and Designated Forwarder election. RT-2 advertises host MAC/IP reachability, and RT-3 builds multicast/BUM replication lists. Therefore, RT-1 is the precise answer for aliasing and fast convergence. Reference: EVPN multi-homing route types, Ethernet Auto-Discovery, aliasing and convergence behavior.
질문 # 46
Which of the following is always found in an extended community associated with an EVPN update?
정답：C
설명：
Comprehensive and Detailed 150 to 250 words of Explanation From [SR Linux EVPN and Data Center Interconnect/Course Guide/topics]:
The route target is the extended community consistently associated with EVPN updates to control route import and export between EVPN instances. In SR Linux EVPN services, route targets determine which MAC-VRF or IP-VRF should import a received EVPN route. This is essential for tenant separation because multiple tenants may use overlapping MAC or IP address spaces while sharing the same physical fabric and BGP control plane. The AFI/SAFI is not an extended community; it identifies the BGP address family and subsequent address family used to carry EVPN NLRI. The EVPN route type is also not an extended community; it is part of the EVPN NLRI structure and identifies whether the route is RT-1, RT-2, RT-3, RT-4, RT-5, and so on. The VXLAN network ID may be carried or inferred through service and encapsulation-specific attributes, but it is not universally present as the required extended community in every EVPN update. The route target is the mandatory policy element that enables receiving PEs to place EVPN routes into the correct service context. Reference: EVPN extended communities, route-target import/export policy, tenant service identification.
질문 # 47
Consider the exhibit.
Which of the following statements about the operation of all-active multi-homing is FALSE?
정답：C
설명：
Comprehensive and Detailed 150 to 250 words of Explanation From [SR Linux EVPN and Data Center Interconnect/Course Guide/topics]:
In an all-active Layer 2 EVPN multi-homing design, the host is normally dual-attached through a LAG to multiple leaf routers that share the same Ethernet Segment Identifier. Leaf1 and Leaf2 both participate in the Ethernet Segment and may receive traffic from the host. For BUM traffic sourced by the host, the host-side hashing can send frames toward either attached leaf. For BUM traffic sent from the EVPN overlay toward the multi-homed segment, DF election controls which PE forwards that replicated traffic toward the local Ethernet Segment to prevent duplicate delivery. The false statement is option B. A remote leaf such as Leaf3 does not simply enable ECMP on the MAC-VRF to load-balance traffic between Leaf1 and Leaf2. EVPN all-active forwarding uses Ethernet Segment discovery, Ethernet A-D routes, aliasing, and split-horizon procedures to determine valid next-hops and prevent loops. ECMP alone is an underlay or routing-table behavior; it is not the MAC-VRF mechanism that authorizes multi-homed L2 forwarding across an Ethernet Segment. Reference: all-active L2 EVPN multi-homing, Ethernet Segment association, DF election, aliasing.
질문 # 48
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Pass4Test의 Nokia인증 4A0-D03시험덤프는 실제시험의 기출문제와 예상문제를 묶어둔 공부자료로서 시험문제커버율이 상당히 높습니다.IT업계에 계속 종사하려는 IT인사들은 부단히 유력한 자격증을 취득하고 자신의 자리를 보존해야 합니다. Pass4Test의 Nokia인증 4A0-D03시험덤프로 어려운 Nokia인증 4A0-D03시험을 쉽게 패스해보세요. IT자격증 취득이 여느때보다 여느일보다 쉬워져 자격증을 많이 따는 꿈을 실현해드립니다.
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