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Which of the following statements about MAC addresses are correct ? (Multiple Choice)
Which of the following statements about MAC addresses are correct ? (Multiple Choice)A . Ethernet uses MAC address to identify the hostB . MAC address is a logical address that is easy to changeC . The MAC address is fixed in the ROM , usually cannot be changedD . Usually only the terminal host needs the MAC address, routers and other network devices do not...
In the Windows operating system, which command can display ARP entry information ?
In the Windows operating system, which command can display ARP entry information ?A . display arpB . arp CaC . arp CdD . show arpView AnswerAnswer: B Explanation: arp -d delete arp entry arp -s IP MAC-MAC static binding arp
The common fields in the UDP and TCP protocol headers are ______ . (Multiple choices)
The common fields in the UDP and TCP protocol headers are ______ . (Multiple choices)A . Source portB . Destination portC . Flow controlD . Source IP addressE . ChecksumF . Serial numberView AnswerAnswer: ABE
When the source host pings the destination device, if the network is working properly, the destination device will respond to the source host with an ICMP______ message after receiving the message.
When the source host pings the destination device, if the network is working properly, the destination device will respond to the source host with an ICMP______ message after receiving the message.A . Echo RequestB . Echo ReplyC . TTL-ExceededD . Port-UnreachableView AnswerAnswer: B Explanation: Echo Request ――――――――――――――――――――――――――――> Echo Reply (Normal) <―――――――――――――― ――――――――――――――― TTL-Exceeded / Port-Unreachable (timeout / destination address unreachable)
WLAN ( Wireless LAN ) is the product of the combination of computer network and wireless communication technology. Which of the following are WLAN technical standards ? (Multiple choice)
WLAN ( Wireless LAN ) is the product of the combination of computer network and wireless communication technology. Which of the following are WLAN technical standards ? (Multiple choice)A . 802.11aB . 802.11bC . 802.11cD . 802.11gView AnswerAnswer: AB Explanation: Maximum transmission rate
The broadcast address of the natural classification network segment corresponding to the IP address 202.135.111.77 is _____________ .
The broadcast address of the natural classification network segment corresponding to the IP address 202.135.111.77 is _____________ .View AnswerAnswer:
The IP protocol corresponds to layer ______ of the OSI reference model .
The IP protocol corresponds to layer ______ of the OSI reference model .A . 5B . 3C . 2D . 1View AnswerAnswer: B Explanation: Application layer protocol: see T13 Transport layer protocol: TCP (6) UDP (17) Network layer protocols: IP , ICMP ( ICMP messages can be divided into ICMP error messages and ICMP query messages), IGMP (Internet Group Management Protocol, responsible for managing multicast groups) Network interface layer...
The network address of the natural classification network segment corresponding to the IP address 112.1.1.1 is.
The network address of the natural classification network segment corresponding to the IP address 112.1.1.1 is.View AnswerAnswer:
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:
The IP address 203.108.2.110 is the ______ address.
The IP address 203.108.2.110 is the ______ address.A . A DeliverableB . B class CC class DD typeView AnswerAnswer: C
