The presentation layer is concerned with the () and semantics of the informationexchanged between two systems. The processes in two systems are usually exchanginginformation in the form. of character(),numbers, and so on. The information should be changed to bit()before .being transmitted. Because different computers use different encoding systems, the presentation layer is responsible for()between these different encoding methods. The presentation layer at the sender changes the information from its sender-dependent format into a common format. The presentation layer at the receiving machine changes the common format into its()dependent format.

The presentation layer is concerned with the () and semantics of the informationexchanged between two systems.

A:frequency    B:syntax         C:dialog       D:Format

以下程序的运行结果为 【8】
#define FORMAT "%u,%u"
main( )
int a[3][4]=1,3,5,7,9,11,13,15,17,19,21,23;
printf("/n");
printf(FORMAT,**a,*a[0]);
printf(FORMAT,*(a[0]+1),*&a[0][1]);
printf(FORMAT,a[1][0],*(*(a+1)+0));

1,1 3,3 9,9

对于上行PUCCH,下列说法错误的是( )

A:PUCCH包含5种格式 B:PUCCHformat0可以反馈CSI C:PUCCH可以反馈ACK/NACK D:PUCCH可以反馈SR

下面属于长PUCCH的是( )

A:PUCCHformat 0 B:PUCCHformat 1 C:PUCCHformat2 D:PUCCHformat3

高层RRC配置的周期性 SRS, PUCCH,PUSCH,PRACH传输,在下面 哪种场 景下可以传输 ( )

A:DCI format 2_0 动态指示的 flexible 符 B:DCI format 2_0 动态指示的下行符号 ; C:未配置DCI format2_0 下,半静态指示的flexible 符号; D:未配置DCI format2_0 下,半静态指示的下行符号 ;

NR 中PUCCH 的调制方式为QPSK

NR中SR在下列哪个信道上发送?()

A:PUCCH format1/format 0 B:PUCCH format1/1a/1b C:PUSCH D:PUCCH format3

下列哪种PUCCH格式支持OCC(orthogonal cover code) ( )

A:PUCCHformat2 B:PUCCHformat0 C:PUCCHformat3 D:PUCCHformat1

微信扫码获取答案解析
下载APP查看答案解析