Cisco 350-401 Online Practice Questions and Exam Preparation

Cisco 350-401 Online Questions & Answers

• Question 451:

  When does Cisco DNA Center make changes to a device?

  A. when the device credentials are added
  B. when the network device is assigned to the site and device controllability is turned on
  C. when the network device is discovered and device controllability is turned on
  D. when a NETCONF port has been configured
  C. when the network device is discovered and device controllability is turned on

• Question 452:

  Refer to the exhibit.

  

  Which configuration causes the traffic from PC-1 to the internet to use the link between CoreSW-1 and CoreSW-2 when both switches are up?

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  B. Option B

• Question 453:

  Which statement about TLS is true when using RESTCONF to write configurations on network devices?

  A. It is provided using NGINX acting as a proxy web server.
  B. It is no supported on Cisco devices.
  C. It required certificates for authentication.
  D. It is used for HTTP and HTTPs requests.
  A. It is provided using NGINX acting as a proxy web server.

  ---

  Explanation

  When a device boots up with the startup configuration, the nginx process will be running. NGINX is an internal webserver that acts as a proxy webserver. It provides Transport Layer Security (TLS)-based HTTPS. RESTCONF request sent via HTTPS is first received by the NGINX proxy web server, and the request is transferred to the confd web server for further syntax/semantics check.

  https://www.cisco.com/c/en/us/td/docs/iosxml/ ios/prog/configuration/168/b_168_programmability_cg/RESTCONF.html https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/prog/configuration/166/b_166_programmability_cg/b_166_programmability_cg_chapter_01011.html

  The https-based protocol-RESTCONF (RFC 8040), which is a stateless protocol, uses secure HTTP methods to provide CREATE, READ, UPDATE and DELETE (CRUD) operations on a conceptual datastore containing YANG-defined data - > RESTCONF only uses HTTPs.

• Question 454:

  Refer to the exhibit.

  

  Which configuration must be implemented to establish EBGP peering between R1 and R2?

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  C. Option C

• Question 455:

  Refer to the exhibit.

  

  A customer reports that many wireless clients cannot reliably receive multicast audio.

  Which action resolves this issue?

  A. Set the 24 Mbps and 54 Mbps data rates to Supported.
  B. Set the RSSI Threshold to -67dBm.
  C. Set the Fragmentation Threshold to 1250 bytes
  D. Disable RSSI Low Check.
  A. Set the 24 Mbps and 54 Mbps data rates to Supported.

• Question 456:

  DRAG DROP

  An engineer is working with the Cisco DNA Center API. Drag and drop the methods from the left onto the actions that they are used for on the right.

  Select and Place:

  

  

• Question 457:

  Refer to the exhibit.

  

  Why does OSPF fail to establish an adjacency between R1 and R2?

  A. authentication mismatch
  B. interface MTU mismatch
  C. area mismatch
  D. timers mismatch
  B. interface MTU mismatch

• Question 458:

  What are two benefit of virtualizing the server with the use of VMs in data center environment? (Choose two.)

  A. Increased security
  B. reduced rack space, power, and cooling requirements
  C. reduced IP and MAC address requirements
  D. speedy deployment
  E. smaller Layer 2 domain
  B. reduced rack space, power, and cooling requirements
  D. speedy deployment

  ---

  Explanation

  Server virtualization and the use of virtual machines is profoundly changing data center dynamics. Most organizations are struggling with the cost and complexity of hosting multiple physical servers in their data centers. The expansion of the data center, a result of both scale-out server architectures and traditional "one application, one server" sprawl, has created problems in housing, powering, and cooling large numbers of underutilized servers. In addition, IT organizations continue to deal with the traditional cost and operational challenges of matching server resources to organizational needs that seem fickle and ever changing. Virtual machines can significantly mitigate many of these challenges by enabling multiple application and operating system environments to be hosted on a single physical server while maintaining complete isolation between the guest operating systems and their respective applications. Hence, server virtualization facilitates server consolidation by enabling organizations to exchange a number of underutilized servers for a single highly utilized server running multiple virtual machines.

  By consolidating multiple physical servers, organizations can gain several benefits:

  + Underutilized servers can be retired or redeployed.

  + Rack space can be reclaimed.

  + Power and cooling loads can be reduced.

  + New virtual servers can be rapidly deployed.

  + CapEx (higher utilization means fewer servers need to be purchased) and OpEx (few servers means a simpler environment and lower maintenance costs) can be reduced.

  https://www.cisco.com/c/en/us/solutions/collateral/data-centervirtualization/ net_implementation_white_paper0900aecd806a9c05.html

• Question 459:

  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.

  Tasks

  BGP connectivity exists between Headquarters and both remote sites; however, Remote Site 1 cannot communicate with Remote Site 2. Configure BGP according to the topology to goals:

  1. Configure R1 and R3 under the BGP process to provide reachability between Remote Site 1 and Remote Site 2. No configuration changes are permitted on R2.

  2. Ensure that the /32 networks at Remote Site 1 and Remote Site 2 can ping each other.

  Topology

  

  R1

  

  

  

  

  

  

  R3

  

  

  

  

  

  

  

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

  ---

  Explanation

  Solution:

  On R1:

  R1(config)#router bgp 123

  R1(config-router)#address-family ipv4

  R1(config-router-af)#neighbor 10.0.0.2 allowas-in

  On R3:

  R3(config)#router bgp 123

  R3(config-router)# address-family ipv4

  R3(config-router-af)#neighbor 192.168.1.2 allowas-in VERIFICATION:

  R3#sh ip route bgp

  Gateway of last resort is not set

  1.0.0.0/32 is subnetted, 1 subnets

  B 1.1.1.1 [20/0] via 192.168.1.2, 00:01:17

  2.0.0.0/32 is subnetted, 1 subnets

  B 2.2.2.2 [20/0] via 192.168.1.2, 00:05:06

  10.0.0.0/24 is subnetted, 1 subnets

  B 10.0.0.0 [20/0] via 192.168.1.2, 00:01:17

  Test Ping from R3 to R1:

  R3#ping 1.1.1.1

  Type escape sequence to abort.

  Sending 5, 100-byte ICMP Echos to 1.1.1.1, timeout is 2 seconds:

  !!!!!

  R3#ping 1.1.1.1 source lo0

  Type escape sequence to abort.

  Sending 5, 100-byte ICMP Echos to 1.1.1.1, timeout is 2 seconds:

  Packet sent with a source address of 3.3.3.3

  !!!!!

  Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms

• Question 460:

  Which function does a fabric wireless LAN controller perform In a Cisco SD-Access deployment?

  A. manages fabric-enabled APs and forwards client registration and roaming information to the Control Plane Node
  B. coordinates configuration of autonomous nonfabric access points within the fabric
  C. performs the assurance engine role for both wired and wireless clients
  D. is dedicated to onboard clients in fabric-enabled and nonfabric-enabled APs within the fabric
  A. manages fabric-enabled APs and forwards client registration and roaming information to the Control Plane Node

  ---

  Explanation

  Fabric Enabled WLC:

  Fabric enabled WLC is integrated with LISP control plane. This WLC is responsible for AP image /Config, Radio Resource Management, Client Session management and roaming and all other wireless control plane functions.

  For WLC Fabric Integration:

  * Wireless Client MAC address is used as EID

  * It inform about Wireless MAC address with its other information like SGT and Virtual Network Information

  * VN information is mapped to VLAN on FEs

  * WLC is responsible for updating Host Database tracking DB with roaming information