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| Certification Vendor: | Cisco |
|---|---|
| Exam Name: | Designing and Implementing Enterprise Network Assurance |
| Exam Number: | 300-445 ENNA |
| Certificate Validity Period: | 3 years |
| Exam Duration: | 90 minutes |
| Exam Format: | Simulation, Fill-in-the-blank, Multiple choice, Drag-and-drop |
| Passing Score: | Pass/Fail (no fixed score published) |
| Available Languages: | English |
| Exam Price: | $300 USD |
| Real Exam Qty: | 55-65 |
| Related Certifications: | Cisco Certified Specialist – Enterprise Network Assurance CCNP Enterprise |
| Recommended Training: | Cisco U. Learning Path Designing and Implementing Enterprise Network Assurance (ENNA) Training |
| Exam Registration: | Pearson VUE Registration |
| Sample Questions: | Cisco 300-445 Sample Questions |
| Exam Way: | Online proctored or onsite at Pearson VUE test centers |
| Pre Condition: | No mandatory prerequisites; recommended knowledge: CCNP Enterprise level, experience with Cisco DNA Center, network monitoring, and assurance tools; core exam 350-401 ENCOR required for full CCNP Enterprise |
| Official Syllabus URL: | https://www.cisco.com/site/us/en/learn/training-certifications/exams/enna.html |
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NEW QUESTION # 83
When selecting a Cisco network assurance platform, what factor should be prioritized for efficient network troubleshooting?
Answer: D
Explanation:
Prioritizing alerting mechanisms is crucial when selecting a Cisco network assurance platform for efficient network troubleshooting and issue resolution.
NEW QUESTION # 84
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.
Answer: C,E
Explanation:
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.
NEW QUESTION # 85
What agent type is responsible for conducting synthetic user interactions with web applications?
Answer: A,B
Explanation:
Synthetic user agents and scripting agents are responsible for conducting synthetic user interactions with web applications in network assurance, facilitating performance monitoring and testing.
NEW QUESTION # 86
You're analyzing NetFlow data for a network supporting voice and video traffic. The data shows consistent spikes in delay and jitter during peak hours. Which optimization would you recommend?
Answer: B
Explanation:
In theDesigning and Implementing Enterprise Network Assurance (300-445 ENNA)curriculum, capacity planning and optimization are driven by telemetry data such as NetFlow. When NetFlow identifies that delay and jitter-metrics highly impactful to real-time traffic-spike during peak hours, it indicates that high- priority packets are competing for resources with bulk data.
The most appropriate recommendation is totune the existing QoS configuration(Option C). This involves adjusting the Queuing and Scheduling policies on the routers to ensure that voice and video traffic (typically marked with EF and AF41/AF42 DSCP values) is serviced before other traffic classes during periods of congestion. This solution is targeted, cost-effective, and directly addresses the observed jitter issues without the need for massive capital expenditure.
Reviewing other options:
* Option A:A complete QoS redesign is often unnecessary and too invasive for solving peak-hour jitter if a basic QoS framework is already in place.
* Option B:Increasing bandwidth on "all" links is a "brute force" approach that is expensive and fails to address the underlying problem of traffic prioritization.
* Option D:Hardware replacement is a last resort and would not resolve delay/jitter if the new hardware still lacks a properly tuned QoS policy.
NEW QUESTION # 87
A campus site uses two ISPs to provide Internet connection - one as the active provider and the other as a backup provider. An engineer is configuring an alert rule in Cisco ThousandEyes to trigger an alert when the upstream Internet connection fails back to the backup Internet connection. Which alert condition must be configured?
Answer: C
NEW QUESTION # 88
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