Cisco 300-420測試題庫-最新300-420考試題庫幫助妳壹次性通過Designing Cisco Enterprise Networks考試

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Cisco 300-420考試的重點在於使用Cisco技術設計和實施先進的企業網絡架構。它涵蓋了網絡自動化、虛擬化、安全和網絡保證等主題。該考試由60-70道題目組成，考試時間為90分鐘。題目形式包括多選、拖放和模擬等多種形式。

思科300-420：設計思科企業網路是一個認證考試，測試IT專業人士在設計和實施企業網路方面的知識。該考試是思科認證網絡專家（CCNP）企業認證計劃的一部分，該認證計劃被全球公認為網絡工程師的標準。該認證計劃旨在幫助專業人員在不斷變化的IT行業中推進自己的職業生涯並保持競爭優勢。

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Cisco 300-420 考試涵蓋了廣泛的主題，包括高級路由協議、網絡安全、虛擬化、自動化和網絡設計原則。考生將需要通過回答各種多選題和情境題來展示他們對這些主題的理解。該考試旨在測試考生設計符合組織業務需求的企業級網絡的知識和技能。通過該考試的考生將獲得 Cisco 認證設計專業（CCDP），該認證在 IT 行業中高度受重視，並在全球范圍內得到認可。

最新的 CCNP Enterprise 300-420 免費考試真題 (Q270-Q275):

問題 #270
A client is moving to Model-Driven Telemetry and requires periodic updates. What must the network architect consider with this design?

A. Updates that contain changes within the data are sent only when changes occur.
B. The primary push update is sent immediately and cannot be delayed.
C. Empty data subscriptions do not generate empty update notifications.
D. Periodic updates include a full copy of the data that is subscribed to.

答案：D

解題說明：
Periodic updates contain a full copy of the subscribed data element or table for all supported transport protocols https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/prog/configuration/166
/b_166_programmability_cg/model_driven_telemetry.html

問題 #271
When vEdge router redundancy is designed, which FHRP is supported?

A. HSRP
B. OMP
C. VRRP
D. GLBP

答案：C

解題說明：
Section: Advanced Enterprise Campus Networks

問題 #272
Which WAN connectivity technology is optimal for edge computing compared to others and why?

A. Due to high bandwidth, separation and security, and proximity to the data center network, DWDM is the optimal WAN technology for edge computing compared to 4G/5G connectivity, which offers native separation and security with close proximity to the data center.
B. Due to low latency, high bandwidth, and closest proximity to the user, L3 VPN MPLS connectivity is the optimal WAN technology for edge computing compared to 4G/5G connectivity, which offers native separation and security with close proximity to the data center.
C. Due to low latency, high bandwidth, and closest proximity to the user, 4G/5G connectivity is the optimal WAN technology for edge computing compared to L3 VPN MPLS connectivity, which offers native separation and security with close proximity to the data center.
D. Due to low cost, high bandwidth, low latency, and closest proximity to the edge of the network, Mero Ethernet is the optimal WAN technology for edge computing compared to MPLS, which offers native separation and security with close proximity to the data center.

答案：C

解題說明：
Edge computing aims to bring computing resources closer to the end-users, improving latency and overall user experience. 4G/5G connectivity offers low latency, high bandwidth, and is closer to the users, making it an optimal choice for edge computing. Although L3 VPN MPLS connectivity provides separation and security, it may not offer the same low latency and close proximity to the user as 4G/5G connectivity.

問題 #273
An engineer must propose a QoS architecture model that allows an application to inform the network of its traffic profile and to request a particular type of service to support its bandwidth and delay requirements. The application requires consistent and dedicated bandwidth end to end. Which QoS architecture model meets these requirements?

A. LLQ
B. WRED
C. IntServ
D. DiffServ

答案：C

解題說明：
Section: Network Services

問題 #274
Drag and drop the properties from the left onto the protocols they describe on the right.

答案：

解題說明：

Explanation:
NETCONF: SSH-based; built to support candidate configuration. RESTCONF: HTTPS-based; lacks support for two-phase commit transactions.
NETCONF and RESTCONF both use YANG data models, but they use different transport and transaction behaviors. NETCONF is traditionally SSH-based and was designed as a network configuration protocol with datastore concepts such as running, startup, and candidate configuration where supported. The candidate datastore enables staged configuration changes and a commit workflow, which is useful for transactional network changes. RESTCONF exposes YANG-modeled resources through an HTTP-based REST interface, typically protected with HTTPS. It is simpler for web-style application integration because it uses familiar HTTP methods, URIs, and payload encodings such as XML or JSON. However, RESTCONF does not provide the same full two-phase commit transaction model associated with NETCONF candidate configuration workflows. Therefore, the correct mapping is that NETCONF is SSH-based and built to support candidate configuration, while RESTCONF is HTTPS-based and lacks support for two-phase commit transactions. In Cisco programmability design, NETCONF is often selected for robust configuration transactions, whereas RESTCONF is often selected for simpler API-driven integration.

問題 #275
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