Cisco 350-401 Online Practice Questions and Exam Preparation

Cisco 350-401 Online Questions & Answers

• Question 1171:

  Refer to the exhibit.

  

  An engineer configures OSPF and wants to verify the configuration.

  Which configuration is applied to this device?

  A. R1(config)#router ospf 1 R1(config-router)#network 192.168.50.0 0.0.0.255 area 0
  B. R1(config)#router ospf 1 R1(config-router)#network 0.0.0.0 0.0.0.0 area 0 R1(config-router)#no passive-interface Gi0/1
  C. R1(config)#interface Gi0/1 R1(config-if)#ip ospf enable R1(config-if)#ip ospf network broadcast R1(config-if)#no shutdown
  D. R1(config)#interface Gi01 R1(config-if)#ip ospf 1 area 0 R1(config-if)#no shutdown
  D. R1(config)#interface Gi01 R1(config-if)#ip ospf 1 area 0 R1(config-if)#no shutdown

  ---

  Explanation

  When you ue the "show ip ospf interface intx/x/x" command, what difference will you see in the old vs new OSPFv2 config?

  - One will say attached via Interface Enable, the other will say Attached via Network Statement

  https://www.chegg.com/flashcards/chapter-20-implementing-ospf-61b573b4-141b-4f63-bac9-ee35462d315e/deck

• Question 1172:

  Which statement about Cisco EAP-FAST is true?

  A. It does not require a RADIUS server certificate
  B. It requires a client certificate
  C. It is an IETF standard.
  D. It operates in transparent mode
  A. It does not require a RADIUS server certificate

  ---

  Explanation

  The Cisco switch was configured with PAgP, which is a Cisco proprietary protocol so non-Cisco switch could not communicate.

  If your environment is relatively small or you do not have a RADIUS server in production, you can use an authentication server that is built in to the WLC. This is called Local EAP, and it supports LEAP, EAP-FAST, PEAP, and EAP-TLS.

  References:

  https://www.cisco.com/c/en/us/support/docs/wireless/4400-series-wireless-lan-controllers/99791-eapfast-wlc-rad-config.html

• Question 1173:

  An engineer is describing QoS to a client.

  Which two facts apply to traffic policing? (Choose two.)

  A. Policing adapts to network congestion by queuing excess traffic
  B. Policing should be performed as close to the destination as possible
  C. Policing drops traffic that exceeds the defined rate
  D. Policing typically delays the traffic, rather than drops it
  E. Policing should be performed as close to the source as possible
  C. Policing drops traffic that exceeds the defined rate
  E. Policing should be performed as close to the source as possible

  ---

  Explanation

  Traffic policing propagates bursts. When the traffic rate reaches the configured maximum rate (or committed information rate), excess traffic is dropped (or remarked). The result is an output rate that appears as a saw-tooth with crests and troughs.

  Unlike traffic shaping, traffic policing does not cause delay. Classification (which includes traffic policing, traffic shaping and queuing techniques) should take place at the network edge. It is recommended that classification occur as close to the source of the traffic as possible. Also according to this Cisco link, "policing traffic as close to the source as possible".

• Question 1174:

  An engineer adds a new switch to a Cisco StackWise stack. The switch that was active before the switch was added is elected as the active switch again.

  Which action does the active switch take?

  A. It suspends traffic forwarding until the new switch is updated with the current running configuration of the stack.
  B. It checks the IOS and running configuration of the new switch and updates them if necessary to match the other switches in the stack.
  C. It removes any Layer 3 configuration on the new switch to maintain normal Layer 2 functionality on the stack.
  D. It clears the MAC table of the stack and relearns the attached devices.
  B. It checks the IOS and running configuration of the new switch and updates them if necessary to match the other switches in the stack.

• Question 1175:

  Refer to the exhibit.

  

  What does the response 204 No Content mean for the REST API request?

  A. Interface toopback 100 is not removed from the configuration.
  B. Interface toopback 100 is not found in the configuration.
  C. Interface toopback 100 is removed from the configuration.
  D. The DELETE method is not supported.
  C. Interface toopback 100 is removed from the configuration.

• Question 1176:

  What is the function of a fabric border node in a Cisco SD-Access environment?

  A. To collect traffic flow information toward external networks.
  B. To connect the Cisco SD-Access fabric to another fabric or external Layer 3 networks.
  C. To attach and register clients to the fabric.
  D. To handle an ordered list of IP addresses and locations for endpoints in the fabric.
  B. To connect the Cisco SD-Access fabric to another fabric or external Layer 3 networks.

  ---

  Explanation

  Border Node is an Entry & Exit point for data traffic going Into & Out of a Fabric

  Referenced:

  https://www.cisco.com/c/dam/m/hr_hr/training-events/2019/cisco-connect/pdf/VH-Cisco-SD-Access-Connecting.pdf

• Question 1177:

  Which two components are supported by LISP? (choose two )

  A. proxy ETR
  B. egress tunnel router
  C. route reflector
  D. HMAC algorithm
  E. spoke
  A. proxy ETR
  B. egress tunnel router

  ---

  Explanation

  https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_lisp/configuration/xe-3s/irl-xe-3s-book/irl-overview.html

• Question 1178:

  What is a characteristic of a WLC that is in master controller mode?

  A. All new APs that join the WLAN are assigned to the master controller.
  B. The master controller is responsible for load balancing all connecting clients to other controllers.
  C. All wireless LAN controllers are managed by the master controller.
  D. Configuration on the master controller is executed on all wireless LAN controllers.
  A. All new APs that join the WLAN are assigned to the master controller.

  ---

  Explanation

  When should I use the master controller mode on a WLC? ?When there is a master controller enabled, all newly added access points with no primary, secondary, or tertiary controllers assigned associate with the master controller on the same subnet.

• Question 1179:

  Refer to the exhibit.

  

  OSPF is partially configured. Complete the OSPF configurations on the ABR routers to achieve these goals:

  1. The route for R1 Loopback0 must not be advertised into Area

  10. Use the partially configured prefix list to accomplish this task. Do not use the area 0 command under the router OSPF configuration section to accomplish the task.

  2. The route for R20 Loopback0 must not be advertised out of Area

  20. Use the partially configured prefix list to accomplish this task. Do not use the area 0 command under the router OSPF configuration section to accomplish the task.

  A. See the explanation below
  B. PlaceHolder
  C. PlaceHolder
  D. PlaceHolder
  A. See the explanation below

  ---

  Explanation

  R2

  enable

  configure terminal

  router ospf 10 area 10 filter-list prefix deny_R1_Lo0 in exit

  ip prefix-list deny_R1_Lo0 seq 1 deny 10.0.1.1/32 ip prefix-list deny_R1_Lo0 seq 2 permit 0.0.0.0/0 le 32

  end

  write memory

  R3

  enable

  configure terminal

  router ospf 10 area 20 filter-list prefix deny_R20_Lo0 out

  exit ip prefix-list deny_R20_Lo0 seq 1 deny 10.2.1.1/32

  ip prefix-list deny_R20_Lo0 seq 2 permit 0.0.0.0/0 le 32

  end

  write memory

  Why

  The filtering must be applied on the ABR routers:

  R2 is the ABR between Area 0 and Area 10.

  R3 is the ABR between Area 0 and Area 20.

  For R1 Loopback0, the filter is applied into Area 10:

  area 10 filter-list prefix deny_R1_Lo0 in For R20 Loopback0, the filter is applied out of Area 20:

  area 20 filter-list prefix deny_R20_Lo0 out

  The permit line is required so that only the specified loopback route is denied and all other prefixes continue to be advertised.

• Question 1180:

  Refer to the exhibit.

  

  What is the value of the variable list after the code is run?

  A. [1, 2], [1, 2], [1, 2]
  B. [1, 2] * 3
  C. [1, 2, 1, 2, 1, 2]
  D. [3, 6]
  C. [1, 2, 1, 2, 1, 2]

  ---

  Explanation

  >>> list = [1, 2]

  >>> list = list * 3

  >>> print (list)

  [1, 2, 1, 2, 1, 2]