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Free H12-891_V1.0 Exam Braindumps
HCIE-Datacom V1.0 Questions 206–210 (page: 43)

Updated On: 10-Feb-2026
Page 43 of 123
PDF with 610 Questions

Regarding the sliding window of TCP, what are the following descriptions that are enough to be wrong? ( Multiple choice question)

  1. The sender declares the initial window size
  2. The sender does not need to transmit messages of full window size
  3. The TCP sliding window allows multiple packets to be sent before an acknowledgment is received
  4. After the retransmission timer times out, the sender has not received an acknowledgment and will retransmit unacknowledged data
  5. The receiver needs to acknowledge the sender's packet
  6. Sliding window size can only be increased or remain unchanged

Answer(s): A,F



The following statements about the VRRP protocol are correct (multiple choice).

  1. Both VRRPv2 and VRRPv3 support authentication
  2. VRRPv3 does not support authentication, while VRRPV2 does
  3. VRRPv2 only applies to IPv4 networks, and VRRPv3 only applies to IPv6 networks
  4. The owner of the Master IP address has a VRP priority of 255, and all configurable priorities range from 0 to 254

Answer(s): B



The following statement about the VXLAN gateway is incorrect?( Single choice questions).

  1. Layer 2 gateway: Used to solve the problem of tenant access to the VXLAN virtual network, and can also be used for subnet communication of the same VXLAN virtual network.
  2. Layer 3 gateway: Used for cross-subnet communication of the VXLAN virtual network and access to external networks.
  3. VXLAN Layer 3 gateways can be divided into centralized gateways and distributed gateways.
  4. Layer 2 gateway and VPN instance binding.

Answer(s): D



Which of the following BGP attributes is not required in the Update message for a BGP route?

  1. WITH
  2. Local-Preference
  3. AS_PATH
  4. Origin

Answer(s): A,B



The following description of BGP loop protection is correct: multi-select

  1. Any routing information from an IBGP peer is advertised to the other IBGP peers
  2. Any update information received from the EBGP peer that contains its own AS number in the AS-PATH attribute is discarded via the AS-PATH attribute
  3. Non-RR BGP routers do not announce any updates from IBGP peers to other IBGP peers
  4. BGP routers do not announce any slaves The EBGP peer comes to update the information to its EBGP peer

Answer(s): B,C



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