Cisco 350-401 Online Practice Questions and Exam Preparation

Cisco 350-401 Online Questions & Answers

• Question 1141:

  With IGMPv2, which multicast group address does the IGMP querier use to send query messages to all hosts on the LAN?

  A. 239.0.0.2
  B. 224.0.0.1
  C. 239.0.0.1
  D. 224.0.0.2
  B. 224.0.0.1

• Question 1142:

  DRAG DROP

  Drag and drop the components of the Cisco SD-Access fabric architecture from the left onto the correct descriptions on the right. Not all options are used.

  Select and Place:

  

  

• Question 1143:

  Refer to the exhibit.

  

  An engineer must configure router R1 to allow only NETCONF connections from the management VLAN. Which command completes this configuration?

  A. R1(config-if)# ip access-group netconfacl in
  B. R1(config)# netconf-yang ipv4 access-list name netconfacl
  C. R1(config)#ip http secure-serverR1(config)# ip http accounting commands 12 default
  D. R1(config-if)#ip access-group netconfacl out
  A. R1(config-if)# ip access-group netconfacl in

• Question 1144:

  Which statement about VXLAN is true?

  A. VXLAN uses TCP 35 the transport protocol over the physical data cento network.
  B. VXLAN extends the Layer 2 Segment ID field to 24-bits. which allows up to 4094 unique Layer 2 segments over the same network.
  C. VXLAN encapsulates a Layer 2 frame in an IP-UDP header, which allows Layer 2 adjacency across router boundaries.
  D. VXLAN uses the Spanning Tree Protocol for loop prevention.
  C. VXLAN encapsulates a Layer 2 frame in an IP-UDP header, which allows Layer 2 adjacency across router boundaries.

  ---

  Explanation

  802.1Q VLAN identifier space is only 12 bits. The VXLAN identifier space is 24 bits. This doubling in size allows the VXLAN ID space to support 16 million Layer 2 segments -> Answer 'VXLAN extends the Layer 2 Segment ID field to 24-bits, which allows up to 4094 unique Layer 2 segments over the same network' is not correct.

  VXLAN is a MAC-in-UDP encapsulation method that is used in order to extend a Layer 2 or Layer 3 overlay network over a Layer 3 infrastructure that already exists.

  https://www.cisco.com/c/en/us/support/docs/lan-switching/vlan/212682- virtualextensible-lan-and-ethernet-virt.html

• Question 1145:

  In a wireless network environment, which measurement compares the received signal to the background noise?

  A. free space path loss
  B. link power budget
  C. fading
  D. SNR
  D. SNR

• Question 1146:

  In a Cisco Catalyst switch equipped with two supervisor modules an administrator must temporally remove the active supervisor from the chassis to perform hardware maintenance on it. Which mechanism ensure that the active supervisor removal is not disruptive to the network operation?

  A. NSF/NSR
  B. SSO
  C. HSRP
  D. VRRP
  B. SSO

  ---

  Explanation

  Stateful Switchover (SSO) provides protection for network edge devices with dual Route Processors (RPs) that represent a single point of failure in the network design, and where an outage might result in loss of service for customers. Reference: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12- 2SY/configuration/ guide/sy_swcg/stateful_switchover.html

• Question 1147:

  What is a characteristic of traffic shaping?

  A. drops out-of-profile packets
  B. causes TCP retransmits when packets are dropped
  C. can be applied in both traffic directions
  D. queues out-of-profile packets until the buffer is full
  D. queues out-of-profile packets until the buffer is full

• Question 1148:

  SIMULATION

  Guidelines

  This is a lab item in which tasks will be performed on virtual devices.

  1. Refer to the Tasks tab to view the tasks for this lab item.

  2. Refer to the Topology tab to access the device console(s) and perform the tasks.

  3. Console access is available for all required devices by clicking the device icon or using the tab(s) above the console window.

  4. All necessary preconfigurations have been applied.

  5. Do not change the enable password or hostname for any device.

  6. Save your configurations to NVRAM before moving to the next item.

  7. Click Next at the bottom of the screen to submit this lab and move to the next question.

  8. When Next is clicked, the lab closes and cannot be reopened.

  Topology

  

  Tasks

  The operations team started configuring network devices for a new site.

  Complete the configurations to achieve these goals:

  1. Ensure that port channel Po1 between DISTRO-SW01 and DISTRO-SW02 is operational using the LACP protocol. Configuration changes for this task must be made on DISTRO-SW01.

  2. Ensure that traffic on VLAN 10 is carried as untagged traffic between DISTRO-SW01 and DISTRO-SW02.

  3. Complete the Rapid-PVST+ configuration on DISTRO-SW2 by ensuring it it the secondary root switch for all VLANs in the range of 1 to 1005.

  DISTRO-SW01

  

  

  

  

  DISTRO-SW02

  

  

  

  A. See the solution below in Explanation.
  B. Place Holder
  C. Place Holder
  D. Place Holder
  A. See the solution below in Explanation.

  ---

  Explanation

  Task 1. Ensure that port channel Po1 between DISTRO-SW01 and DISTRO-SW02 is operational using the LACP protocol. Configuration changes

  for this task must be made on DISTRO-SW01.

  The port towards to ACCESS-SW1 was part of port channel 1 which was used towards to DISTRO-SW02, so remove the port channel config pointing to the ACCESS-SW1 first.

  DISTRO-SW01(config)#int e0/0

  DISTRO-SW01(config-if)#no channel-group 1

  Set the LACP mode active on this switch:

  DISTRO-SW01(config-if)#int range e0/2 - 3

  DISTRO-SW01(config-if)#channel-group 1 mode active

  Verification:

  We can verify if the Port-channel was formed with the “show etherchannel summary” command DISTRO-SW01# show etherchannel summary

  -- output omitted -- Number of channel-groups in use: 1 Number of aggregators:

  1 Group Port-channel Protocol Ports

  ------+------------- +-----------+-----------------------------------------------

  1 Po1(SU) LACP Et0/2(P) Et0/3(P) If we see the “Po1(SU)” means our configuration worked correctly.

  Task 2. Ensure that traffic on VLAN 10 is carried as untagged traffic between DISTRO-SW01 and DISTRO-SW02.

  DISTRO-SW01, DISTRO-SW02(config)#interface port-channel 1

  DISTRO-SW01,DISTRO-SW02(config-if)#switchport trunk native vlan 10

  Task 3. Complete the Rapid-PVST+ configuration on DISTRO-SW2 by ensuring it is the secondary root switch for all VLANs in the range of 1 to 1005.

  DISTRO-SW02(config)#spanning-tree vlan 1-1005 root secondary

  Save the configuration DSW1,DSW2(config)#copy running-config startup-config

• Question 1149:

  A network engineer must configure the VTY lines on a router to achieve these results:

  1. Remote access should be permitted only for secure protocols.

  2. Only a password should be required for device authentication.

  3. All idle EXEC sessions must be terminated in 60 minutes.

  Which configuration should be applied?

  A. line vty 0 15password Cisco123transport input sshexec-timeout 60
  B. line vty 0 15loginpassword Cisco123transport input sshexec-timeout 60
  C. line vty 0 15password Cisco123transport input telnet sshexec-timeout 60
  D. line vty 0 15password Cisco123transport input allsession-timeout 60
  B. line vty 0 15loginpassword Cisco123transport input sshexec-timeout 60

• Question 1150:

  To increase total throughput and redundancy on the links between the wireless controller and switch, the customer enabled LAG on the wireless controller.

  Which EtherChannel mode must be configured on the switch to allow the WLC to connect?

  A. Auto
  B. Active
  C. On
  D. Passive
  C. On

  ---

  Explanation

  Link aggregation (LAG) is a partial implementation of the 802.3ad port aggregation standard. It bundles all of the controller's distribution system ports into a single 802.3ad port channel.

  Restriction for Link aggregation:

  + LAG requires the EtherChannel to be configured for `mode on' on both the controller and the Catalyst switch. ...

  https://community.cisco.com/t5/wireless-mobility-documents/lag-link-aggregation/ta-p/3128669