问题 填空题

某单位网络拓扑结构如图2所示。该单位网络中,客户端全部从DHCP服务器处动态获取IP地址,该DHCP服务器设置的地址池为192.168.1.1-192.168.1.253。请回答以下问题。

(1)用户通过命令__(1)____可以看到自己申请到的本机IP地址,用命令_(2)_____可以重新向DHCP服务器申请IP,用命令___(3)___可以释放IP地址。

(2)该单位服务器发现与其他计算机IP地址冲突,网络管理员检查发现本网络内设有其他DHCP服务器,并且除服务器外其他客户端没有设置静态IP地址,此时应检查调整DHCP服务器的__(4)____。

(3)某Windows客户端开机后发现无法上网,使用ipconfig发现本机自动获取的IP地址是169.254.8.1,此时检查DHCP服务器工作正常,且地址池中尚有未分配地址,此时应检查_(5)_____。

(2)是()

答案

参考答案:ipconfig/renew

判断题
单项选择题

"A rolling stone gathers no moss(苔藓) ," but there is one living animal that does gather moss, the three-toed sloth (树獭) of South America. This slowest-moving member of the animal kingdom is so inactive that moss actually gathers on its body and turns it green——strange as it seems!
Most of the sloth’s life is spent motionless, hanging upside down from a limb. And that is the way its hair grows. Long and coarse, the strands (串) from receptacles (花托) for the damp jungle algae (水藻) that turn the brown fur a mossy green. Actually this moss helps the animal survive because it serves as a perfect camouflage against the leaf trees and hides the sloth from the jungle’s swift - moving hunters. The sloth would have little chance of survival on the ground. With long, curved claws hooked over the limb of a leafy tree, it spends the long hot hours during the day drowsing and eating. Inch by inch, it strips the leafy limbs bare and crawls slowly down the trunk to find a new dining spot, but only at night.
In addition to looking rather like a vegetable, the sloth is a strict vegetarian. Running out of its favorite leaf is about the only thing that will make a sloth move. Then its appetite may even force the animal into swimming a stream to reach a juicy succulent(多汁的植物). It will also force it into fighting to keep the tree all to itself. The sloth is lazy and prefers to be alone, but it will tolerate its own relatives!

According to the passage, the sloth will move about when ______.

A.it senses a coming danger

B.it is forced to swim on a hot day

C.it is short of its favorite food

D.it wants to keep itself to itself