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单选题 Which of the following four descriptions about DHCP is correct? ( )
学科：计算机网络（双语）
时间：2024-12-26 18:06:57
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题目1单选题
In the following options, which one is not a guided media? ( )A. twisted-pair wireB. fiber opticsC. coaxial cableD. satellite
题目2单选题
Which of the following devices is not cut-through device? ( )A. hubB. switchC. repeaterD. router
题目3单选题
Which of the following four descriptions about random access protocol is not correct? ( )A. Both slotted ALOHA and CSMA/CD are random access protocolsB. A transmission node transmits at the full rate of the channelC. With random access protocol, there may be empty slotsD. When a collision happens, each node involved in the collision retransmits at once
题目4单选题
The FIN segment is used for____A. Closing a TCP connectionB. TCP congestion controlC. TCP connection setupD. TCP flow control
题目5单选题
Which of the following four descriptions about DHCP is correct? ( )A. DHCP uses TCP as its underlying transport protocolB. The DHCP server will offer the same IP address to a host when the host requests an IP addressC. DHCP is C/S architectureD. The IP address offered by a DHCP server is valid forever
题目6单选题
Because there are both network-layer addresses (for example, Internet IP addresses) and link-layer addresses (that is, LAN addresses), there is a need to translate between them. For the Internet, this is the job of ( )A. RIPB. ARPC. OSPFD. IP
题目7单选题
In the following four applications, which one is both bandwith-sensitive and require tight timing constraintsA. real-time audioB. file transferC. Web documentsD. E-mail
题目8单选题
Which of the following services is not provided by TCPA. Reliable data transfers and flow controlsB. In-order data transfersC. Delay guarantees and bandwidth guaranteesD. Congestion controls
题目9单选题
Which of the following option belongs to the circuit-switched networks? ( )A. VC networksB. both A and BC. TDMD. FDM
题目10单选题
A ( )is a physical-layer device that acts on individual bits rather than on framesA. gatewayB. hubC. routerD. switch
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