HCIE-Datacom H12-891_V1.0 Passing Score

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Question 20

HW users are transferring a very large number of files via TFTP. What protocol does TFTP rely on for transmission?

Options:

ICMP and UDP

IP ?TCP

UDP

NFS E. FTP

Question 21

The RSTP protocol provides a variety of protection functions, such as when the edge port is configured as a protection state, the edge port receives the BPDU packet processing method;

Options:

Directly discard the BPDU packet

Close the port

After parsing the BPDU message, the relevant information is obtained

Forward BPDU packets as required

Question 22

Auto-negotiate mode is to obtain the maximum interface rate and operating mode, the network administrator configures all Ethernet interface rates of a working switch to 10OMbps, and the operating mode is configured as Full-duplex, when a network card is configured After the auto-negotiate workstation is connected to the switch, the negotiation result is that the interface rate is 10OMbps and the working mode is half-duplex, which of the following explanations is the most reasonable for this phenomenon?

Options:

The problem is on the workstation's NIC, mostly due to the aging of the NIC driver on the workstation , which causes the workstation NIC to learn the interface rate and operating mode configured on the switch

Port rate negotiation is negotiated through the initial port sending FLP , and the operating mode is not negotiated through FLP

STP initializes the port into the blocking state, causing auto-negotiation to fail, so the port should be configured as an edge port

At higher port rates and operating modes, the workstation's network interface card cannot be configured as auto-negotiate

Auto-negotiation is not configured on the switch, resulting in the switch not being able to send FLP messages to the workstation, causing the workstation to set its own operating mode to Half-duple

Question 23

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