Free 300-410 Exam Braindumps

- (Exam Topic 2)
Exhibit:

NTP is configured across the network infrastructure and Cisco DNA Center. An NTP issue was reported on the Cisco DNA Center at 17:15. Which action resolves the issue?

1. A. Check and resolve reachability between the WLC and the NTP server
2. B. Reset the NTP server to resolve any synchronization issues for all devices
3. C. Check and resolve reachability between Cisco DNA Center and the NTP server
4. D. Check and configure NTP on the WLC and synchronize with Cisco DNA Center

Correct Answer: D
Excessive time lag between Cisco DNA Center and device: The time difference between Cisco DNA Center and the device IP Address has drifted too far apart. CiscoDNA Center cannot process the device data accurately if the time difference is more than 3 minutes.
Reference:
https://www.cisco.com/c/en/us/td/docs/cloud-systems-management/network-automation-and-management/dna-c

- (Exam Topic 3)
A network administrator is troubleshooting a high utilization issue on the route processor of a router that was reported by NMS The administrator logged into the router to check the control plane policing and observed that the BGP process is dropping a high number of routing packets and causing thousands of routes to recalculate frequently. Which solution resolves this issue?

1. A. Police the cir for BGP, conform-action transmit, and exceed action transmit.
2. B. Shape the pir for BGP, conform-action set-prec-transmit, and exceed action set-frde-transmit.
3. C. Shape the cir for BG
4. D. conform-action transmit, and exceed action transmit.
5. E. Police the pir for BGP, conform-action set-prec-transmit, and exceed action set-clp-transmit.

Correct Answer: D
CIR (Committed Information Rate) is the minimum guaranteed traffic delivered in the network.
PIR (Peak Information Rate) is the top bandwidth point of allowed traffic in a non busy times without any guarantee.

+ Policing: is used to control the rate of traffic flowing across an interface. During a bandwidth exceed (crossed the maximum configured rate), the excess traffic is generally dropped or remarked. The result of traffic policing is an output rate that appears as a saw-tooth with crests and troughs. Traffic policing can be applied to inbound and outbound interfaces. Unlike traffic shaping, QoS policing avoids delays due to queuing. Policing is configured in bytes.
+ Shaping: retains excess packets in a queue and then schedules the excess for later transmission over increments of time. When traffic reaches the maximum configured rate, additional packets are queued instead of being dropped to proceed later. Traffic shaping is applicable only on outbound interfaces as buffering and queuing happens only on outbound interfaces. Shaping is configured in bits per second.

Therefore in this case we can only policing, not shaping as traffic shaping is applicable only on outbound interfaces as buffering and queuing happens only on outbound interfaces. Moreover, BGP traffic is not important so we can drop the excess packets without any problems.
And we only policing the PIR traffic so that the route processor is not overwhelmed by BGP calculation.
Note: The “set-prec-transmit” is the same as “transmit” command except it sets the IP Precedence level as well. The “set-clp-transmit” sets the ATM Cell Loss Priority (CLP) bit from 0 to 1 on the ATM cell and transmits the packet.

- (Exam Topic 1)
Which attribute eliminates LFAs that belong to protected paths in situations where links in a network are connected through a common fiber?

1. A. shared risk link group-disjoint
2. B. linecard-disjoint
3. C. lowest-repair-path-metric
4. D. interface-disjoint

Correct Answer: A
Reference:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_eigrp/configuration/xe-3s/asr1000/ire-xe-3s-asr1000/

- (Exam Topic 1)
Refer to the exhibit.

An administrator that is connected to the console does not see debug messages when
remote users log in. Which action ensures that debug messages are displayed for remote logins?

1. A. Enter the transport input ssh configuration command.
2. B. Enter the terminal monitor exec command.
3. C. Enter the logging console debugging configuration command.
4. D. Enter the aaa new-model configuration command.

Correct Answer: C
The logging console is a default and hidden command.

- (Exam Topic 3)
Refer to the exhibit.

With the partial configuration of a router-on-a-stick. Clients in VLAN 10 on Gi2 cannot obtain IP configuration from the central DHP server is reachable by a successful ping from the route. Which action resolves the issue?

1. A. Configure the ip/ip/dhcp pool f and network 192.168..210.0.255.255/0 commands.
2. B. Configure the ip header-address 192-168.265.3 command on the Gi2 10 subinterface.
3. C. Configure a valid IP address on the Gi2 interface so that DHCP requests can be forwarded.
4. D. Configure the Ip dhcp excluded-address 192.168.255.3 command on the Gi1.10 subinterface.

Correct Answer: B