The administrator wants to completely delete the old device configuration file <config.zip>, then which of the following command is correct?

There are two routers (RTA and RTB) between the source device and destination device. The Tracert command is used to detect the path between the two devices. During detection of the first hop (RTA), the source device sends a UDP packet with a TTL of 1 to an interface with a large interface number on the destination device. The TTL turns to 0 when the packet arrives at RTB, upon which RTA sends an ICMP_ message to the source device.

What is the range of VLAN IDs that users can use?

In PPP, you can use the "ppp chap authentication" command to enable CHAP authentication.

If an Ethernet data frame Length/Tyme=0z8100, which may be the payload of this data frame? (Multiple Choice)