计算机网络硬件设备中的无交换能力的交换机(集线器)属于哪一层共享设备()
A.物理层
B.数据链路层
C.传输层
D.网络层
参考答案:D
Serialization delay and()delay are the two components of network delay that are improved by increasing bandwidth. Serialization delay, i.e. the amount of time it takes to put the()on the wire, and queuing delay (depth of the queue) are improved by increasing the()from a 128kbps circuit to a T1. However, three other components of delay, routing/switching delay, distance delay, and protocol delay are components that can not be positively affected by an ()in bandwidth. If the circuits are not over-utilized, then increasing the bandwidth to improve the()of the application will only result in an increased bandwidth with no positive effects on performance.
and queuing delay (depth of the queue) are improved by increasing the()from a 128kbps circuit to a T1.
A.memory
B.cache
C.bandwidth
D.delay
下列关于评标方法的说法中,正确的是( )。
A.采用综合评估法的工程建设项目,需量化的因素及其权重可以由评标委员会在评标时确定
B.采用最低评标价法的机电产品国际招标项目,如招标文件允许以多种货币投标,应当换算成美元评标
C.工程建设项目的各种奖项可以额外计分
D.自主创新产品的政府采购项目评标,采用最低评标价法的,按价格扣除后的投标价格确定中标价