Cisco 350-401 Online Practice Questions and Exam Preparation

Cisco 350-401 Online Questions & Answers

• Question 421:

  DRAG DROP

  Drag and drop the code snippets from the bottom onto the blanks in the code to construct a request that configures policy-based routing.

  Select and Place:

  

  

• Question 422:

  Which data modeling language is commonly used by NETCONF?

  A. REST
  B. YANG
  C. HTML
  D. XML
  B. YANG

  ---

  Explanation

  Cisco IOS XE supports the Yet Another Next Generation (YANG) data modeling language. YANG can be used with the Network Configuration Protocol (NETCONF) to provide the desired solution of automated and programmable network operations. NETCONF(RFC6241) is an XML-based protocol that client applications use to request information from and make configuration changes to the device. YANG is primarily used to model the configuration and state data used by NETCONF operations.

  References:

  https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9500/software/release/16-5/configuration_guide/prog/b_165_prog_9500_cg/data_models.pdf

• Question 423:

  What is the purpose of the LISP routing and addressing architecture?

  A. It creates two entries for each network node, one for Its identity and another for its location on the network.
  B. It allows LISP to be applied as a network visualization overlay though encapsulation.
  C. It allows multiple Instances of a routing table to co-exist within the same router.
  D. It creates head-end replication used to deliver broadcast and multicast frames to the entire network.
  A. It creates two entries for each network node, one for Its identity and another for its location on the network.

  ---

  Explanation

  Locator ID Separation Protocol (LISP) solves this issue by separating the location and identity of a device through the Routing locator (RLOC) and Endpoint identifier (EID): + Endpoint identifiers (EIDs) -assigned to end hosts.

  + Routing locators (RLOCs) -assigned to devices (primarily routers) that make up the global routing system.

• Question 424:

  A customer reports that traffic is not passing on an EIGRP enabled multipoint interface on a router configured as below:

  interface Serial0/0/0

  no ip address

  interface Serial0/0/0.9 multipoint

  ip address 10.1.1.1 255.255.255.248

  ip split-horizon eigrp 1

  Which action resolves the issue?

  A. Enable split horizon.
  B. Disable poison reverse.
  C. Disable split horizon.
  D. Enable poison reverse.
  C. Disable split horizon.

  ---

  Explanation

  In this question sub-interface is used so we have to turn off split-horizon for EIGRP.

• Question 425:

  At which Layer does Cisco DNA Center support REST controls?

  A. EEM applets or scripts
  B. Session layer
  C. YMAL output from responses to API calls
  D. Northbound APIs
  D. Northbound APIs

• Question 426:

  Refer to the exhibit.

  

  Which statement is needed to complete the EEM applet and use the Tel script to store the backup file?

  A. action 2.0 cli command "write_backup.tcl tcl"
  B. action 2.0 cli command "flash:write_backup.tcl"
  C. action 2.0 cli command "write_backup.tcl"
  D. action 2.0 cli command "telsh flash:write_backup.tcl"
  B. action 2.0 cli command "flash:write_backup.tcl"

• Question 427:

  In Cisco Catalyst Center (formerly DNA Center) Inventory, the Software Version of a network device displays a status of OUTDATED.

  What does it mean?

  A. There is a later software version available on Cisco Catalyst Center (formerly DNA Center).
  B. The current software image does not match the selected Golden Image for this type of network device.
  C. The current type of software image does not match the type of the network device.
  D. There is a later software version available on the Cisco.com website.
  B. The current software image does not match the selected Golden Image for this type of network device.

• Question 428:

  Which IP SLA operation requires the IP SLA responder to be configured on the remote end?

  A. ICMP echo
  B. UDP jitter
  C. CMP jitter
  D. TCP connect
  B. UDP jitter

  ---

  Explanation

  Cisco IOS IP SLA Responder is a Cisco IOS Software component whose functionality is to respond to Cisco IOS IP SLA request packets. The IP SLA source sends control packets before the operation starts to establish a connection to the responder. Once the control packet is acknowledged, test packets are sent to the responder. The responder inserts a time-stamp when it receives a packet and factors out the destination processing time and adds time-stamps to the sent packets. This feature allows the calculation of unidirectional packet loss, latency, and jitter measurements with the kind of accuracy that is not possible with ping or other dedicated probe testing.

  The IP SLAs responder is a component embedded in the destination Cisco device that allows the system to anticipate and respond to IP SLAs request packets. The responder provides accurate measurements without the need for dedicated probes.

  UDP Jitter measures the delay, delay variation(jitter), corruption, misorderingand packet lossby generating periodic UDP traffic. This operation always requires IP SLA responder.

  References:

  https://www.ciscolive.com/c/dam/r/ciscolive/us/docs/2017/pdf/BRKNMS-3043.pdf

  https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4500/12-2/46sg/configuration/guide/Wrapper-46SG/swipsla.pdf

• Question 429:

  Refer to the exhibit.

  

  OSPF is preconfigured on all devices except R20. Configure R20 to complete these tasks:

  Task 1

  Configure OSPF according to the topology using these requirements:

  Use Process ID 20.

  Use Loopback0 for the router ID.

  Advertise all networks into OSPF.

  Do not use network statements under the OSPF process to accomplish this task.

  Task 2

  Configure a /18 summary route for Area 40 and advertise only Type 3 LSAs into Area 0.

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

  ---

  Explanation

  R20

  enable

  configure terminal

  router ospf 20

  router-id 10.0.1.20

  area 40 range 10.40.0.0 255.255.192.0

  area 40 stub

  exit

  interface Loopback0

  ip ospf 20 area 0

  exit

  interface Ethernet0/0

  ip ospf 20 area 0

  exit

  interface Ethernet0/1

  ip ospf 20 area 0

  exit

  interface Ethernet0/2

  ip ospf 20 area 40

  end

  write memory

  Why:

  The task says not to use network statements, so OSPF must be enabled directly under the interfaces with:

  ip ospf 20 area <area-id>

  R20 has Area 0 interfaces toward R10 and R30, and an Area 40 interface toward R40. The /18 Area 40 summary is:

  area 40 range 10.40.0.0 255.255.192.0

  The area 40 stub command supports the requirement to advertise only summary information rather than external LSAs. Cisco describes stub areas as areas that are shielded from external routes while still receiving information about other OSPF areas.

  The PDF's printed solution is incorrect because it repeats an R30 / Area 50 configuration instead of configuring R20 / Area 40.

• Question 430:

  How does NETCONF YANG represent data structures?

  A. as strict data structures denned by RFC 6020
  B. in an XML tree format
  C. in an HTML format
  D. as modules within a tree
  B. in an XML tree format