关于题库104.4 的286题

godream

QUESTION 286
A host is attempting to send data to another host on a different network. What is the first action that the
sending host will take?
A. Drop the data.
B. Send the data frames to the default gateway.
C. Create an ARP request to get a MAC address for the receiving host.
D. Send a TCP SYN and wait for the SYN ACK with the IP address of the receiving host.
Answer: C
Section: Chapter 2: TCP/IP
Explanation/Reference:
主机要发送数据的话。首先要请求到网关或者下一跳的mac地址进行二层的封

我英语烂 C的答案应该是 创建一个ARP请求去得到接收端主机的MAC地址 。我想应该是创建一个ARP请求去得到网关路由器的MAC地址吧   求真相！！！

小乔

receiving host这里可以理解 为网关，按照答案也只能这么理解了

godream

小乔 发表于 2011-8-10 20:01
receiving host这里可以理解 为网关，按照答案也只能这么理解了

OK 谢谢版主

phoenixzjq1985