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There are two hops from the source device to the destination device. Use the tracert command to detect the path. When detecting the first hop, the source device sends a UDP packet with a TTL of 1 to the intermediate hop; when detecting the second hop, the source device sends a UDP packet with a TTL of 2. The packet reaches the intermediate hop first, and the TTL decreases. is 1. When the packet reaches the destination, the TTL will be decremented to 0. At this time, the destination device will send an ICMP______ message to the source to inform the source device that it has tracked the destination address.
There are two hops from the source device to the destination device. Use the tracert command to detect the path. When detecting the first hop, the source device sends a UDP packet with a TTL of 1 to the intermediate hop; when detecting the second hop, the source device sends...
Use an Ethernet cable to connect the two switches. The MDI type of the interconnection port is configured as across, so the Ethernet cable should be ________.
Use an Ethernet cable to connect the two switches. The MDI type of the interconnection port is configured as across, so the Ethernet cable should be ________.A . Only crossover network cables can be usedB . Only direct network cables can be usedC . Both parallel network cables and crossover...
If a port of an Ethernet switch running STP does not receive or forward data, receives but does not send BPDUs, and does not perform address learning, then the port should be in the ______ state.
If a port of an Ethernet switch running STP does not receive or forward data, receives but does not send BPDUs, and does not perform address learning, then the port should be in the ______ state.A . BlockingB . ListeningC . LearningD . ForwardingE . WaitingF . DisableView AnswerAnswer: A
Users can use the ______ command to view historical commands.
Users can use the ______ command to view historical commands.A . display history-cliB . display history-areaC . display history-commandD . display history-cacheView AnswerAnswer: C
The well-known port number of the transport layer used by TFTP is ______.
The well-known port number of the transport layer used by TFTP is ______.A . 67B . 68C . 69D . 53View AnswerAnswer: C
The port Ethernet1/0/1 of the switch SWA was originally an Access port type, and now it needs to be configured as a Hybrid port type. Which of the following commands is the correct configuration command?
The port Ethernet1/0/1 of the switch SWA was originally an Access port type, and now it needs to be configured as a Hybrid port type. Which of the following commands is the correct configuration command?A . [SWA]port link-type hybridB . [SWA-Ethernet1/0/1] port link-type hybridC . [SWA]undo port link-type trunkD ....
TCP protocol distinguishes different connections through ______.
TCP protocol distinguishes different connections through ______.A . Port numberB . Port number and IP addressC . Port number and MAC addressD . IP address and MAC addressView AnswerAnswer: B
During the teardown process of the TCP connection as shown in the figure, the Y part in FIN should be filled in with ______.
During the teardown process of the TCP connection as shown in the figure, the Y part in FIN should be filled in with ______. A . pB . qC . p+1D . q+1View AnswerAnswer: B
Which of the following statement about the OSI reference model is correct?
Which of the following statement about the OSI reference model is correct?A . The data at the transport layer is called a frame (Frame)B . The data at the network layer is called a segment (Segment)C . The data at the data link layer is called a packet (Packet)D ....
If you need to configure the IP address of the Ethernet port on the MSR, you should configure it under ______.
If you need to configure the IP address of the Ethernet port on the MSR, you should configure it under ______.A . System viewB . User viewC . Interface viewD . Routing protocol viewView AnswerAnswer: C
