下表為一路由器的路由表。如果該路由器接收到目的IP地址為10.3.1.4的IP數(shù)據(jù)報(bào),那么它采取的動(dòng)作為()
A.拋棄 B.轉(zhuǎn)發(fā)至10.2.0.5 C.轉(zhuǎn)發(fā)至10.3.1.4 D.轉(zhuǎn)發(fā)至10.3.0.7
IP數(shù)據(jù)報(bào)的報(bào)文格式如下圖所示。在沒有選項(xiàng)和填充的情況下,報(bào)頭長(zhǎng)度域的值為()
A.3 B.5 C.10 D.20
A.202.113.25.255 B.202.113.0.0 C.255.255.255.55 D.255.255.255.255