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Free Huawei H12-891_V1.0 Exam Braindumps (page: 13)

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610 Questions & Answers
Page 13 of 154

Regarding the FTP protocol, which of the descriptions below is correct?

  1. In FTP Passive mode, the client completes the initialization of the TCP session for control and data
  2. In FTP Active mode, the server tells the client which port it expects to send data on by commanding "PORT"
  3. FTP always uses a TCP session to transmit control information and data information
  4. FTP always uses TCP port 20 to establish a data session, and ICP port 21 to establish control will always use
  5. FTP TCP port 21 to establish a data session, TCP port 20 to establish a control session

Answer(s): A



Router HW cannot access hosts in the remote network, router HW runs routing protocols and only pings the remote file server address 105401 on router HW with extensions
through a default route remote network , the result of ping on the router HW is rendered as 'requ.' est time out', according to the above description, the error in the following analysis is ?

  1. The next hop router for router HW did not reach the destination address
  2. Router HW does not have a legitimate router to reach the destination address
  3. Ping is successful, but congestion occurs on the path to the destination address
  4. There is a firewall in the remote destination network, and the destination address can be reached without releasing ICMP traffic
  5. ICMP packets, but the destination device fails to reply

Answer(s): B



If the receive cache of a switch's gigabit Ethernet interface is full, what protocol does the switch use to know that the remote interface delays sending data frames for a period of time?

  1. 8023af
  2. 8021U
  3. 8021D
  4. 8023
  5. 8023Z

Answer(s): E



A multi-protocol network, the topology is shown in the figure. Take a closer look at the topology, router R4 (in Areal) is introduced into the OSPF process via the routes learned by BGP. So what categories of LS4 will R3 advertise to zone 0?( Multiple choice questions).

  1. 5 ?LSA
  2. 7 ?LSA
  3. 1 ?LSA
  4. 4 ?LSA
  5. 2 ?? ??

Answer(s): A,C,E






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