300-410 practice questions 71–80

1. Question 71 · 578 in bank

   

   Refer to the exhibit. An engineer is trying to connect to R1 via Telnet with no success. Which configuration resolves the issue?

   • Atacacs server prod address ipv4 10.221.10.10 exit
   • Bip route 10.221.10.10 255.255.255.255 ethernet 0/1
   • Cip route 10.221.0.11 255.255.255.255 ethernet 0/1
   • Dtacacs server prod address ipv4 10.221.10.11 exit

   Show answer

   Answer: D

   Explanation

   No one is going to say anything about this one? From what I can tell, C really isn't the BEST answer for this question. In my opinion, D is a much better answer. Reason: Looking at the debug output, second to the last line, the log suggests that it is attempting to use server x.x.10.10 when the diagram specifies that the server is actually x.x.10.11. This would require the tacacs group to be modified to use the correct server: `tacacs server prod` `address ipv4 x.x.10.11` `exit` I suppose C is a good backup answer, but D ensures that we are pointing to the correct tacacs server to begin with.

   Source: Adapted from community discussion — JingleJangus

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2. Question 72 · 578 in bank

   Select 2

   An engineer is trying to copy an IOS file from one router to another router by using TFTP. Which two actions are needed to allow the file to copy? (Choose two.)

   • ACopy the file to the destination router with the copy tftp: flash: command
   • BEnable the TFTP server on the source router with the tftp-server flash: <filename> command
   • CTFTP is not supported in recent IOS versions, so an alternative method must be used
   • DConfigure a user on the source router with the username tftp password tftp command
   • EConfigure the TFTP authentication on the source router with the tftp-server authentication local command

   Show answer

   Answer: AB

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3. Question 73 · 578 in bank

   Refer to the exhibit. Users report that IP addresses cannot be acquired from the DHCP server. The DHCP server is configured as shown. About 300 total nonconcurrent users are using this DHCP server, but none of them are active for more than two hours per day. Which action fixes the issue within the current resources?

   

   • AModify the subnet mask to the network 192.168.1.0 255.255.254.0 command in the DHCP pool
   • BConfigure the DHCP lease time to a smaller value
   • CConfigure the DHCP lease time to a bigger value
   • DAdd the network 192.168.2.0 255.255.255.0 command to the DHCP pool

   Show answer

   Answer: B

   Explanation

   That is wrong. You have a total of 203 IP addresses, and 300 clients. At the current configuration every Client up to the 203rd gets an IP, and occupies it for 12 hours (0 days 12 hours 0 minutes). So the 204th client per day fails to get an IP address. To fix this we need to lower the IP lease time from 12 hours down to somewhere around 2 hours as suggested in the question.

   Source: Adapted from community discussion — Earl03

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4. Question 74 · 578 in bank

   Refer to the exhibit. ISP 1 and ISP 2 directly connect to the Internet. A customer is tracking both ISP links to achieve redundancy and cannot see the Cisco IOS IP SLA tracking output on the router console. Which command is missing from the IP SLA configuration?

   

   • AStart-time 00:00
   • BStart-time 0
   • CStart-time immediately
   • DStart-time now

   Show answer

   Answer: D

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5. Question 75 · 578 in bank

   Refer to the exhibit. An administrator noticed that after a change was made on R1, the timestamps on the system logs did not match the clock. What is the reason for this error?

   

   • AAn authentication error with the NTP server results in an incorrect timestamp.
   • BThe keyword localtime is not defined on the timestamp service command.
   • CThe NTP server is in a different time zone.
   • DThe system clock is set incorrectly to summer-time hours.

   Show answer

   Answer: B

   Explanation

   By default, syslog and debug messages are stamped by UTC, regardless of the time zone that device configured. You should append localtime key word to "service timestamp {log | debug} datetime msec" global command to change that behavior.

   Source: Adapted from community discussion — Malataw

   References

   • cisco.com documentation

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6. Question 76 · 578 in bank

   Which command displays the IP routing table information that is associated with VRF-Lite?

   • Ashow ip vrf
   • Bshow ip route vrf
   • Cshow run vrf
   • Dshow ip protocols vrf

   Show answer

   Answer: B

   Explanation

   B is correct. Not much else to say. However you would need to specify which VRF you want the routing table from. Some (all?) of the other commands work as well, but they don't show the routing table.

   Source: Adapted from community discussion — bf10690

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7. Question 77 · 578 in bank

   DRAG DROP - Drag and drop the DHCP messages from the left onto the correct uses on the right. Select and Place:

   

   This is an interactive task on the real exam — a drag-and-drop, hotspot or ordering question. There is nothing to select here, so the answer is shown below for reference.

   Show the answer figure

   Answer: See figure below

   Explanation

   Reference: https://www.cisco.com/c/en/us/support/docs/ip/dynamic-address-allocation-resolution/27470-100.html

   Source: Adapted from community discussion — bjromero28

   References

   • Cisco documentation

   

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8. Question 78 · 578 in bank

   A network engineer is investigating a flapping (up/down) interface issue on a core switch that is synchronized to an NTP server. Log output currently does not show the time of the flap. Which command allows the logging on the switch to show the time of the flap according to the clock on the device?

   • Aservice timestamps log uptime
   • Bclock summer-time mst recurring 2 Sunday mar 2:00 1 Sunday nov 2:00
   • Cservice timestamps log datetime localtime show-timezone
   • Dclock calendar-valid

   Show answer

   Answer: C

   Explanation

   We certainly need "service timestamps log ". The uptime of the switch is not relevant, so we do not need solution A). However, localtime is useful for troubleshooting. https://www.cisco.com/E-Learning/bulk/public/tac/cim/cib/using_cisco_ios_software/cmdrefs/service_timestamps.htm -enables time stamps on logging messages, showing the current time and date relative to the local time zone, with the time zone name included: #service timestamps log datetime localtime show-timezone log: Applies timestamps to logging messages. localtime: Use local time zone for timestamps show-timezone: Add time zone information to timestamp

   Source: Adapted from community discussion — HungarianDish_111

   References

   • Cisco documentation

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9. Question 79 · 578 in bank

   When provisioning a device in Cisco DNA Center, the engineer sees the error message `Cannot select the device. Not compatible with template`. What is the reason for the error?

   • AThe template has an incorrect configuration.
   • BThe software version of the template is different from the software version of the device.
   • CThe changes to the template were not committed.
   • DThe tag that was used to filter the templates does not match the device tag.

   Show answer

   Answer: D

   Explanation

   Just wanted to say that a question like this should not be part of the exam as this is what the exam topics list mentions for Cisco DNA center: 4.7 Troubleshoot network problems using Cisco DNA Center assurance (connectivity, monitoring, device health, network health)

   Source: Adapted from community discussion — Pizzadoos

   References

   • Cisco documentation
   • Cisco documentation

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10. Question 80 · 578 in bank

    While working with software images, an engineer observes that Cisco DNA Center cannot upload its software image directly from the device. Why is the image not uploading?

    • AThe device must be resynced to Cisco DNA Center.
    • BThe software image for the device is in install mode.
    • CThe device has lost connectivity to Cisco DNA Center.
    • DThe software image for the device is in bundle mode

    Show answer

    Answer: B

    Explanation

    Reference: https://www.cisco.com/c/en/us/td/docs/cloud-systems-management/network-automation-and-management/dna-center/1-2-10/user_guide/ b_cisco_dna_center_ug_1_2_10/b_dnac_ug_1_2_10_chapter_0100.html

    Source: Adapted from community discussion — thissiteisgreat

    References

    • Cisco documentation
    • Cisco documentation

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300-410 practice, question 71. 578 questions available.