Scientists hope the collision will produce a large crater in the comet's surface in order to reveal the core and give some ______ to the origin of the solar system.
【单选题】REFER TO THE EXHIBIT. A SWITCH WITH A DEFAULT CONFIGURATION CONNECTS FOUR HOSTS. THE ARP TABLE FOR HOST A IS SHOWN. WHAT HAPPENS WHEN HOST A WANTS TO SEND AN IP PACKET TO HOST D?
A.
Host A sends out a broadcast of FF:FF:FF:FF:FF:FF. Every other host connected to the switch receives the broadcast and host D responds with its MAC address.
B.
Host D sends an ARP request to host
C.
Host A sends out the packet to the switch. The switch sends the packet only to the host D, which in turn responds.
D.
Host A sends an ARP request to the MAC address of host
【简答题】HOUSTON (Reuters) — Houston tops a U.S. magazine’s annual fattest cities list for the fourth time in five years, with four other Texas cities in the top 25. Fast food restaurants — Houston has twice t...