To have the best possible voice quality and to utilize effectively the available bandwidth, which queuing and compression mechanisms need to be used?() class-based weighted fair queuing (CBWFQ)。 low latency queuing (LLQ)。 priority queuing (PQ) or custom queuing (CQ)。 Real-Time Transport Protocol (RTP) header compression。 TCP header compression。 UDP header compressio。
四冲程的汽油机在做功初期,气体的瞬时温度达() 1600~1800℃。 1800~2000℃。 1700~1800℃。 2000~2200℃。
活课的基本要素有()。 兴趣。 智慧。 体验。 感受。 欣赏。
骨干教师的素养包括哪几个向度()。 哲学向度。 心理向度。 文化向度。 政治向度。 教育向度。
Which two are advantages of static routing when compared to dynamic routing?() Security increases because only the network administrator may change the routing tables。 Configuration complexity decreases as network size increases。 Routing updates are automatically sent to neighbors。 Route summarization is compued automatically by the router。 Routing traffic load is reduced when used in stub network links。 An efficient algorithm is used to build routing tables,using automatic updates。 Routing tables adapt automatically to topology changes.。
下列说法正确的有()。