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| Certification Vendor: | Cisco |
|---|---|
| Exam Name: | Designing and Implementing Enterprise Network Assurance |
| Exam Number: | 300-445 |
| Certificate Validity Period: | 3 years |
| Available Languages: | English |
| Exam Price: | $300 USD |
| Related Certifications: | Cisco Certified Specialist - Enterprise Network Assurance CCNP Enterprise |
| Exam Format: | Drag-and-drop, Multiple-answer, Multiple-choice, Fill-in-the-blank |
| Real Exam Qty: | 55-65 |
| Passing Score: | 750 (out of 1000) |
| Exam Duration: | 90 minutes |
| Sample Questions: | Cisco 300-445 Sample Questions |
| Exam Way: | Pearson VUE (Online or Test Center) |
| Pre Condition: | None |
| Official Syllabus URL: | https://learningnetwork.cisco.com/s/300-445-exam-topics |
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問題 #16
The alert shown in the exhibit is designed to detect which of the following network security issues?
答案：D
解題說明：
As shown in Exhibit 4.1-1 (image_6e19fb.png), the alert rule is configured for the BGP layer with the name "AS origin AS 1234". The critical logic is defined in the Alert Conditions section, which specifies: BGP Origin meets all of: ASN not in 1234.
This specific configuration is the standard method used in ThousandEyes to detect BGP hijacking (Option C). BGP hijacking occurs when an unauthorized Autonomous System (AS) announces a network prefix that it does not own, effectively stealing the traffic meant for the legitimate owner.
By setting an alert that triggers when a monitored prefix is seen originating from an Autonomous System Number (ASN) that is not the expected authorized ASN (in this case, AS 1234), ThousandEyes provides immediate notification of a routing takeover.
Identifying this via BGP Origin alerts is superior to simple connectivity checks because it catches the issue at the routing control plane.
問題 #17
Refer to the exhibit. An engineer receives a P1 incident from an office that is experiencing issues with Microsoft Teams. What is the root cause of the issue?
答案：D
解題說明：
All network-level phases (DNS, Connect, SSL, Send, Receive) are successful, but the HTTP phase shows errors from both agents. This means the network path is healthy, but the server responded with an HTTP error code, indicating the application itself is failing rather than the network or TLS.
問題 #18
In network assurance, what is the purpose of a local collection agent?
答案：C
解題說明：
The purpose of a local collection agent is to gather data from nearby devices within the same network segment, enabling detailed monitoring and analysis of local traffic patterns.
問題 #19
Which security issue affecting network performance can be identified using collected data in network assurance?
答案：C
解題說明：
DDoS attacks are a security issue affecting network performance that can be identified using collected data in network assurance, enabling proactive threat mitigation.
問題 #20
Refer to the exhibit.
A network admin has been tasked with monitoring the IPv6 record and name server resolution times with different agents. Select the two actions that the engineer must take to meet the requirements.
答案：B,E
解題說明：
According to the Designing and Implementing Enterprise Network Assurance (300-445 ENNA) curriculum, DNS testing is a fundamental component of ensuring application availability and performance.
The ThousandEyes platform provides two primary types of DNS tests: DNS Server and DNS Trace .
To satisfy the specific requirements of monitoring IPv6 records and name server resolution times , the engineer must utilize the DNS Server test . This test type is designed to measure the performance of specific DNS servers by querying them for particular resource records.
* Monitoring IPv6 Records: In the DNS system, IPv6 address records are known as AAAA records .
Therefore, to monitor the availability and resolution of IPv6 addresses for a domain, the engineer must create a DNS Server test and set the query type to AAAA (Option B).
* Monitoring Name Server Resolution Times: To measure how long it takes for a DNS server to return the authoritative name servers for a domain, the engineer must query for NS (Name Server) records .
By creating a DNS Server test targeting the NS record (Option D), the platform can provide granular metrics on the response time and availability of those specific records from the perspective of the selected agents.
DNS Trace tests (Options C and E) are less suitable for measuring specific resolution times of a single server; instead, they are used to visualize the entire delegation path from the root servers down to the authoritative servers to identify where a " break " in the chain occurs. Furthermore, an A record query (Option A) only provides the IPv4 address, failing the requirement to monitor IPv6. By selecting DNS Server tests for AAAA and NS records, the administrator ensures they have the precise performance data needed to baseline and troubleshoot the organization ' s DNS health.
問題 #21
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300-445題庫資訊: https://www.kaoguti.com/300-445_exam-pdf.html
BONUS!!! 免費下載KaoGuTi 300-445考試題庫的完整版：https://drive.google.com/open?id=1-zmbSg2IOwh2Kz8wm0U0UJ_swZPwfDu_