2025年05月19日来源:信管网 作者:cnitpm
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网络工程师每日一练试题内容(2025/5/18)
试题1
下列关于TCP和UDP协议的说法,正确的是( )查看答案
试题参考答案:C
试题2
The usual way to ensure reliable delivery is to provide the (1) with some feedback about what is happening at the other end of the line. Typically, the protocol calls for the receiver to send back special (2) frame bearing positive or negative (3) about the incoming frames. If the sender receives a positive acknowledgement about a frame, it knows the the frame has arrived safely. On the other hand, a negative acknowledgement means that something has gone wrong, and the frame must be transmitted again.
An additional complication comes from the possibility that hardware troubles may cause a frame to (4) completely. In this case, the receiver will not react at all, since it has no any reason to react. It should be clear that a protocol in which the sender transmits a frame and then waits for an acknowledgement, positive or negative, will hang forever if a frame is ever lost due to, for example, (5) hardware.。
(1)A、receiver
B、controller
C、sender
D、customer
(2)A、data
B、controll
C、request
D、session
(3)A、application
B、connection
C、stream
D、acknowledgement
(4)A、vanish
B、vary
C、appear
D、incline
(5)A、acting
B、working
C、malfunctioning
D、functioning
查看答案
试题参考答案:C、B、D、A、C
试题3
在网络互连中,不同的网络技术有着不同的特点和应用场景。下列关于各种网络技术的描述,正确的是( )查看答案
试题参考答案:B
试题4
在Linux中,要使用命令“chmod-R xxx/home/abc"修改目录/home/abc的访问权限为可读、可写、可执行,命令中的“xxx”应该是( )。查看答案
试题参考答案:A
试题5
单个磁头在向盘片的磁性涂层上写入数据时,是以 ( ) 方式写入的。
A、并行
B、并-串行
C、串行
D、串-并行
查看答案
试题参考答案:C
试题6
在网络故障诊断流程中,收集信息之后的步骤是( )查看答案
试题参考答案:C
试题7
下列IPv6数据报头的字段在IPv4报头中无对应功能的是()查看答案
试题参考答案:D
试题8
TVP/IP网络中的(13)实现应答、排序和流控功能。
A.数据链路层
B.网络层
C.传输层
D.应用层
查看答案
试题参考答案:C
试题9
某信道带宽为1MHz,采用4幅度8相位调制最大可以组成(1)种码元。若此信道信号的码元宽度为10微秒,则数据速率为(2)kb/s。查看答案
试题参考答案:D、C
试题10
以下关于IPsec协议的描述中,正确的是( )。查看答案
试题参考答案:A
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