- All Exams Instant Download
Which of the following advantages does the OSI reference model have ? (Multiple Choice)
Which of the following advantages does the OSI reference model have ? (Multiple Choice)A . The OSI reference model provides compatibility and standard interfaces between devices and promotes standardization.B . An important characteristic of the OSI reference model is its layered architecture. The hierarchical design method can transform huge and complex problems into several smaller and easy-to-handle problems.C ....
SSH uses TCP port number ______ by default .
SSH uses TCP port number ______ by default .A . 20B . 21C . 22D . 23View AnswerAnswer: C
The subnet mask of the IP address 132.119.100.200 is 255.255.255.240 , so the broadcast address of the subnet where it is located is ______ .
The subnet mask of the IP address 132.119.100.200 is 255.255.255.240 , so the broadcast address of the subnet where it is located is ______ .A . 132.119.100.207B . 132.119.100.255C . 132.119.100.193D . 132.119.100.223View AnswerAnswer: A Explanation:
During the establishment of the TCP connection as shown in the figure , the Y part of SYN should be filled in ________ .
During the establishment of the TCP connection as shown in the figure , the Y part of SYN should be filled in ________ . A . aB . bC . a+1D . b+1View AnswerAnswer: C
For the understanding of packet switching mode, the correct one in the following statement is ______ . (Multiple choices)
For the understanding of packet switching mode, the correct one in the following statement is ______ . (Multiple choices)A . Packet switching is a switching method based on cut-through switchingB . The transmitted information is divided into packets of a certain length and forwarded in units of packetsC . Packet switching includes frame-based packet switching and cell-based...
The following statement about the upgrading of H3C network equipment is correct ______ . (Multiple choices)
The following statement about the upgrading of H3C network equipment is correct ______ . (Multiple choices)A . Using Xmodem to upgrade can achieve the same speed as FTPB . When using FTP to upgrade, the device can only be an FTP clientC . When the device cannot boot to the command line mode and the operating system software needs to be upgraded, only the Xmodem mode can...
In the OSI reference model, the function of the network layer is mainly ______ .
In the OSI reference model, the function of the network layer is mainly ______ .A . Transmit the original bit stream on the channelB . Make sure that the pieces of information that arrive at the other party are correctC . Determine how the data packets are routed from the source to the destinationD ....
The 802.11b protocol defines 14 channels in the 2.4 GHz frequency band , and there is overlap in spectrum between adjacent channels. In order to maximize the use of frequency band resources, which of the following channels can be used for wireless coverage ?
The 802.11b protocol defines 14 channels in the 2.4 GHz frequency band , and there is overlap in spectrum between adjacent channels. In order to maximize the use of frequency band resources, which of the following channels can be used for wireless coverage ?A . 1 、 5 、 9B . 1 、 6 、 10C . 2 、 7...
The network delay ( delay ) defines the time required for the network to transfer data from one network node to another network node. The network delay includes ______ . (Multiple choices)
The network delay ( delay ) defines the time required for the network to transfer data from one network node to another network node. The network delay includes ______ . (Multiple choices)A . Propagation delay ( propagation delay )B . switching delay ( Switching Delay )C . Media access delay ( access delay )D . Queue delay ( queuing delay )View AnswerAnswer: AB Explanation:...
If a port running STP in the Ethernet switch does not receive or forward data, receives and sends BPDUs , and does not perform address learning, then the port should be in the ______ state.
If a port running STP in the Ethernet switch does not receive or forward data, receives and sends BPDUs , and does not perform address learning, then the port should be in the ______ state.A . BlockingB . ListeningC . LearningD . ForwardingE . WaitingF . DisableView AnswerAnswer: B Explanation:
