CCNP Network Assurance Practice Test 5 — 15 Questions

Question 1

A network engineer has configured a Cisco IOS IP SLA operation with an ICMP echo probe to monitor reachability of a remote branch router. The engineer wants to automatically remove a static route from the routing table when the probe fails. Which feature should be configured to achieve this?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

IP SLA tracking object with a threshold and a static route referencing the track object. The correct solution is to create an IP SLA tracking object and reference it in the static route. When the IP SLA operation fails, the track object goes down, and the static route is removed from the routing table. This provides automatic failover without manual intervention. Other options either do not remove the route or require additional scripting.

Answer

Embedded Event Manager (EEM) applet that triggers on IP SLA failure and removes the route

Answer

Policy-Based Routing (PBR) with a route map that matches the IP SLA state

Answer

Floating static route with a higher administrative distance that is always present

Question 2

A network engineer is using Cisco DNA Center Assurance to monitor the health of a wireless network. The engineer notices that a particular access point is reporting a high number of client disconnects. Which feature in DNA Center Assurance would best help identify the root cause of these disconnects?

Accepted Answer

Client 360. Client 360 in Cisco DNA Center Assurance offers detailed client-level analytics, including disconnect reasons and historical data, which is essential for troubleshooting client disconnects. The Network Health Dashboard and Device 360 provide broader views, while Application Health is unrelated to client connectivity issues. Thus, Client 360 is the correct tool for root cause analysis.

Answer

Network Health Dashboard

Answer

Device 360

Answer

Application Health

Question 3

A network engineer is troubleshooting a connectivity problem between two hosts on the same VLAN. The engineer suspects a duplex mismatch on the switch port. Which command should be used to verify the duplex settings on a Cisco Catalyst switch interface?

Accepted Answer

show interfaces gigabitEthernet 0/1. To verify duplex settings on a Cisco Catalyst switch interface, the show interfaces command with the specific interface is the most appropriate because it displays the operational duplex, speed, and error counters. This allows the engineer to quickly identify a duplex mismatch, which often results in late collisions and performance degradation.

Answer

show controllers ethernet-controller

Answer

show interfaces counters errors

Answer

show interfaces status

Question 4

A network administrator is configuring a Cisco IOS XE device to send syslog messages to a remote server. The administrator wants to ensure that only messages with severity level 4 and higher (i.e., more severe) are sent. Which command should be used?

Accepted Answer

logging trap 4. The 'logging trap' command specifically controls the severity level of messages sent to remote syslog servers. Setting it to 4 ensures that only messages with severity 4 and higher (more severe) are sent. The other commands control console, buffer, and monitor logging, which are local destinations and do not affect remote syslog.

Answer

logging monitor 4

Answer

logging console 4

Answer

logging buffered 4

Question 5

A network engineer needs to verify the performance of a WAN link between two Cisco routers. The engineer configures an IP SLA operation on Router A that sends ICMP echo requests to Router B every 60 seconds and stores the results. After a week, the engineer checks the results and finds that the operation has been running successfully, but no history data is available. What is the most likely reason for the lack of history data?

Accepted Answer

The IP SLA operation was not configured to collect history statistics.. IP SLA operations only collect history statistics when explicitly configured with the 'history statistics' command. Without this, only the most recent results are available. The engineer saw successful results, indicating the operation ran, but no history was stored because the history collection was not enabled. Enabling history statistics allows the router to maintain a record of past operations for analysis.

Answer

The IP SLA responder was not enabled on Router B.

Answer

The IP SLA operation was not configured with a schedule.

Answer

The IP SLA operation was configured with the wrong frequency.

Question 6

A network engineer is troubleshooting a Connectivity issue between two data center switches. The engineer suspects a physical layer problem and wants to verify the cable and interface status. Which command should be used to check the status of all interfaces, including the link state and speed?

Accepted Answer

show interfaces status. The 'show interfaces status' command is the correct choice because it provides a concise summary of all switch ports, including operational status, speed, duplex, and VLAN assignment. This allows the engineer to quickly identify any ports that are down or operating at incorrect speeds, which are common symptoms of physical layer problems.

Answer

show running-config interface

Answer

show ip interface brief

Answer

show mac address-table

Question 7

A network administrator is using Cisco DNA Center Assurance to monitor the health of a wireless network. The administrator wants to identify the root cause of poor wireless client experience. Which two actions can be taken within Cisco DNA Center Assurance to troubleshoot this issue? (Choose two.)

Accepted Answer

Use the Client Health dashboard to view detailed metrics for a specific wireless client.. To troubleshoot poor wireless client experience, the administrator should use the Client Health dashboard for detailed per-client metrics and Intelligent Capture for deep packet-level analysis. These tools together provide the necessary visibility into wireless-specific issues such as RF conditions and client onboarding problems.

Answer

Use the Path Trace tool to visualize the path between a client and a destination.

Answer

Use the Application Health dashboard to monitor application performance.

Answer

Use the Network Health dashboard to view overall network device health.

Question 8

A network administrator is using Cisco DNA Center Assurance to monitor the health of a wireless network. The administrator notices that a particular access point is reporting a high number of client association failures. Which Cisco DNA Center Assurance feature should be used to correlate these failures with client device types and identify the root cause?

Accepted Answer

Client 360. Client 360 in Cisco DNA Center Assurance is designed to provide detailed insights into individual client devices, including their onboarding process, association failures, and performance. By using Client 360, the administrator can filter and analyze association failures by client type, helping to pinpoint whether specific devices are experiencing issues due to compatibility or configuration problems.

Answer

Network Health dashboard

Answer

Path Trace

Answer

Application Health dashboard

Question 9

A network administrator is using Cisco DNA Center Assurance to monitor a campus network. The administrator notices that a particular client device is experiencing poor performance. The administrator wants to see detailed information about the client's connectivity, including the path taken through the network and any issues encountered. Which Cisco DNA Center Assurance feature should the administrator use?

Accepted Answer

Client 360. Client 360 in Cisco DNA Center Assurance offers a detailed, client-centric view that includes onboarding, connectivity, and application experience. It displays the network path taken by the client and any issues encountered, such as authentication failures or roaming problems. This makes it the appropriate feature for troubleshooting a specific client's performance.

Answer

Application Health dashboard

Answer

Path Trace

Answer

Network Health dashboard

Question 10

A network engineer is configuring an IP SLA operation to monitor the reachability of a critical server at 10.1.1.1. The engineer wants to generate a syslog message and trigger a track object if the response time exceeds 100 ms. Which IP SLA operation type should be used?

Accepted Answer

ICMP Echo. ICMP Echo is the most suitable IP SLA operation for monitoring basic reachability and round-trip time to a server. It allows configuration of a threshold and reactions, which can trigger syslog messages and track objects when the threshold is exceeded, directly meeting the engineer's requirements.

Answer

HTTP

Answer

UDP Jitter

Answer

TCP Connect

Question 11

A network administrator is using Cisco DNA Center Assurance to monitor a campus network. The administrator notices that a specific client device is experiencing poor performance. Which feature in DNA Center Assurance provides a detailed timeline of events, including onboarding, authentication, and application usage for a specific client?

Accepted Answer

Client 360. Client 360 in Cisco DNA Center Assurance provides a holistic view of a specific client, including a detailed timeline of onboarding, authentication, DHCP, DNS, and application usage. This is essential for troubleshooting client-specific performance issues because it correlates all relevant events in one place. The other options provide broader infrastructure or application views but lack the per-client event timeline needed here.

Answer

Path Trace

Answer

Application Health dashboard

Answer

Network Health dashboard

Question 12

A network engineer is troubleshooting a Cisco SD-WAN deployment where some branches experience intermittent packet loss. The engineer suspects that the issue is related to the control plane connections between vEdge routers and the vSmart controller. Which command should be used on a vEdge router to verify the status of the control connections?

Accepted Answer

show control connections. The 'show control connections' command on a vEdge router provides detailed information about the control plane connections to vSmart controllers, including state, uptime, and any errors. Since the engineer suspects control plane instability causing intermittent packet loss, this command is the most direct way to verify the status and health of those connections.

Answer

show bfd sessions

Answer

show interface

Answer

show omp sessions

Question 13

A network engineer is configuring a Cisco IOS router to export NetFlow data to a collector. The engineer wants to ensure that only ingress traffic on GigabitEthernet0/0 is monitored and that the NetFlow cache is optimized for high traffic volumes. Which configuration step is required to enable NetFlow on the interface?

Accepted Answer

ip flow ingress. To enable NetFlow on a specific interface for ingress traffic, the 'ip flow ingress' command must be configured in interface configuration mode. This command activates NetFlow accounting for packets entering the interface, allowing the router to collect flow statistics. The global export commands only define where and how to send the data, but the interface command is what starts the capture.

Answer

ip route-cache flow

Answer

ip flow-export version 9

Answer

ip flow-export destination

Question 14

A network administrator is using Cisco DNA Center Assurance to monitor a campus network. The administrator notices that a particular client device is experiencing poor voice quality. Which Cisco DNA Center Assurance feature should be used to analyze the issue and determine the root cause?

Accepted Answer

Client 360. Client 360 in Cisco DNA Center Assurance offers detailed insights into a specific client's network experience, including voice quality metrics like MOS, jitter, and packet loss. By using Client 360, the administrator can quickly identify whether the poor voice quality is due to network congestion, wireless interference, or other factors, enabling targeted remediation.

Answer

Network Health Dashboard

Answer

Path Trace

Answer

Application Health Dashboard

Question 15

A network administrator is examining the output of the show interfaces command on a switch and notices a high number of CRC errors on a Gigabit Ethernet port. What is the most likely cause of these errors?

Accepted Answer

Cable interference or damage. CRC errors are a physical layer symptom indicating frame corruption. The most common cause is cable interference, damage, or faulty connectors. While duplex mismatch can cause errors, it typically manifests as late collisions and FCS errors, not CRC errors. Therefore, cable issues are the most likely cause.

Answer

Duplex mismatch

Answer

VLAN mismatch

Answer

Speed mismatch