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Cisco 350-401 Exam Questions
Implementing Cisco Enterprise Network Core Technologies (ENCOR) (Page 14 )

Updated On: 10-Mar-2026
Page 14 of 193
PDF with 1067 Questions

What are two reasons why broadcast radiation is caused in the virtual machine environment? (Choose two.)

  1. vSwitch must interrupt the server CPU to process the broadcast packet.
  2. The Layer 2 domain can be large in virtual machine environments.
  3. Virtual machines communicate primarily through broadcast mode.
  4. Communication between vSwitch and network switch is broadcast based.
  5. Communication between vSwitch and network switch is multicast based.

Answer(s): B,C

Explanation:

Because the vswitch is software based, as broadcasts are received the vswitch must interrupt the server CPU to change contexts to enable the vswitch to process the packet. After the vswitch has determined that the packet is a broadcast, it copies the packet to all the VMNICs, which then pass the broadcast packet up the stack to process. This processing overhead can have a tangible effect on overall server performance if a single domain is hosting a large number of virtual machines


Reference:

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



Which two GRE features are configured to prevent fragmentation? (Choose two.)

  1. TCP window size
  2. IP MTU
  3. TCP MSS
  4. DF bit clear
  5. MTU ignore

Answer(s): B,C


Reference:

https://www.cisco.com/c/en/us/support/docs/ip/generic-routing-encapsulation-gre/25885-pmtud-ipfrag.html



Which LISP device is responsible for publishing EID-to-RLOC mappings for a site?

  1. ETR
  2. MR
  3. ITR
  4. MS

Answer(s): A


Reference:

https://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/locator-id-separation-protocol-lisp/white_paper_c11-652502.html



Refer to the exhibit.

Assuming that R1 is a CE router, which VRF is assigned to Gi0/0 on R1?

  1. default VRF
  2. VRF VPN_A
  3. VRF VPN_B
  4. management VRF

Answer(s): A



What are two benefits of virtualizing the server with the use of VMs in a data centre environment? (Choose two.)

  1. reduced rack space, power, and cooling requirements
  2. smaller Layer 2 domain
  3. increased security
  4. speedy deployment
  5. reduced IP and MAC address requirements

Answer(s): A,D



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