【判断题】【消耗次数：1】
TCP是无连接的，UDP是面向连接的。
①
正确
②
错误
参考答案：
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相关题目
【单选题】
下列关于面向连接服务和无连接服务说法错误的是（）
①
面向连接服务使用于数据量大、实时性要求高的场合
②
面向连接的服务的信道利用率高
③
无连接服务适合短报文的传输
④
无连接服务在数据传输过程中动态分配带宽
【单选题】
以下对TCP和UDP描述正确的是（ ）
①
TCP不能提供数据的可靠性
②
UDP能够保证数据库的可靠性
③
TCP数据传输效率高于UDP
④
UDP数据传输效率高于TCP
【单选题】
以下关于支持TCP协议同时建立多个并发连接的特点的描述中，错误的是（）
①
TCP协议支持一个服务器与多个客户端同时建立多个TCP连接
②
TCP协议不支持一个客户端与多个服务器同时建立多个TCP连接
③
TCP软件将分别管理多个TCP连接
④
建立并发连接的数量越多，每一条连接共享的资源就会越少
【简答题】
面向连接和非面向连接的服务的特点是什么？
随机题目
【单选题】
____ money, she is quite rich. However, this does not mean that she is happy.
①
Concerning
②
As to
③
In terms of
④
In the light of
【单选题】
She always put her medication on the top of the
shelf lest the children ____ it by mistake.
①
took
②
should take
③
had taken
④
would take
【单选题】
Evidence came up ____ specific sounds are recognized by babies as young as six months old.
①
what
②
that
③
which
④
whose
【单选题】
There will be a new building here next year, _____ ?
①
will it
②
will there
③
be there
④
won’ t there
【单选题】
This house will probably come on the ____ next month.
①
fair
②
market
③
shop
④
store
【单选题】
I’m sure your suggestion will ____ the problem.
①
contribute to solving
②
be contributed to solve
③
contribute to solve
④
be contributed to solving
【单选题】
____ before, his first performance for the amateur dramatic group was a success.
①
Though having never acted
②
As he had never acted
③
Despite he had never acted
④
In spite of his never having acted
【单选题】
“If we fail to act now,” said Tom, “We’ll find ourselves ____ in action later on.”
①
paid back
②
paid for
③
paid up
④
paid off
【单选题】
The statement had to be delivered to someone who could
____ it to the press.
①
relieve
②
release
③
emit
④
discharge
【单选题】
When the idea of winning in sports is carried to excess, ____ competition can turn into disorder and violence.
①
honestly
②
honest
③
honorable
④
honorary