近些年来,多媒体技术得到迅速发展,其中由Intel、IBM公司推出的DVI是数字多媒体系统的代表之一。多
A.VLSI和光纤通信技术
B.信息压缩和光盘存储技术
C.VLSI和光盘存储技术
D.信息压缩和光纤通信技术
A.VLSI和光纤通信技术
B.信息压缩和光盘存储技术
C.VLSI和光盘存储技术
D.信息压缩和光纤通信技术
A、使用谷歌浏览器
B、使用IE浏览器
C、使用Safari浏览器
D、使用不支持HTML5的浏览器
A.模拟信号电压量
B.模拟信号的采样数值
C.数字化压缩编码
D.电子合成波形
Most IP layer-based proxy mechanisms, such as network address translation(NAT), only support uni-directional proxy, from the internal network to external network(the Internet). The proxy establishes the communication channel by(86) IP addresses. The IP addresses must be(87). These proxy mechanisms prevent applications that must establish return data channels from establishing their data channels, such as, multimedia applications. IP layer-based proxy mechanisms need additional software(88)for each application that uses(89)channels. SOCKS identifies communication targets through domain names, overcoming the restriction of using private IP addresses. SOCKS can use domain names to establish communication between separate LANs, with(90)IP addresses.
A.manufacturing
B.manipulating
C.conduct
D.implement
When the system upon which a transport entity is running fails and subsequently restarts, the(136)information of all active connections is lost. The affected connections become half-open, as the side that did not fail does not yet realize the problem.The still active side of a half-open connections can close the connection using a(137)timer. This timer measures the time the transport machine will continue to await an(138)of a transmitted segment after the segment has been retransmitted the maximum number of times. When the timer(139), the transport entity assumes that either the other transport entity or the intervening network has failed. As a result, the timer closes the connection, and signals an abnormal close to the TS user.In the event that a transport entity fails and quickly restarts, half-open connections can be terminated more quickly by the use of the RST segment, the failed side returns an RST i to every segment i that it receives, when the RST i reaches the other side, it must be checked for validity based on the(140)number i, as the RST could be in response to an old segment, if the reset is valid, the transport entity performs an abnormal termination.
A.data
B.state
C.signal
D.control
A.引用式和嵌入式
B.内部和外部
C.交叉引用
D.包含式
A.鼠标器
B.键盘
C.显示器
D.硬盘
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