正确答案: C
只删除了快捷方式,对应的应用程序被保留
题目:删除Windows中某个应用程序的快捷方式,意味着______。
解析:解析:删除Windows中某个应用程序的快捷方式,仅意味着只删除了该应用程序快捷方式,不会把应用程序一起删除。
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举一反三的答案和解析:
[单选题]Applications put computers to practical business(67), but below the(68)it's the heart of an operating system-the kernel-that provides the technical wizardry to juggle multiple program, connect to networks and store(69).A traditional kernel provides all the functions for applications. The kernel(70)memory, I/0 devices and parcels out processor time.
use
解析:解析:计算机被应用到实际的商业用途中,但在它的内部是一个操作系统的核心,它提供了多重程序技术,并且连接网络,储存数据。一个传统的核心提供应用程序的所有功能,它处理记忆功能,输入/输出设备,并分配处理器的时间。这个核心支持安全和容错能力,当系统部分失灵时能够自动恢复。
[多选题]● Networks can be interconnected by different devices. In the physical layer,networks can be connected by(1)or hubs,which just move the bits from one network to an identical network. One layer up we find bridges and switches,which operate at data link layer. They can accept(2),examine the MAC address,and forward the frames to a different network while doing minor protocol translation in the process. In the network layer,we have routers that can connect two networks. If two networks have(3)network layer, the router may be able to translate between the packet formats. In the transport layer we find transport gateway, which can interface between two transport connections. Finally,in the application layer, application gateways translate message(4).As an example, gateways between Internet e-mail and X.400 e-mail must (5)the e-mail message and change various header fields.(1)
reapers
relays
modems
frames
packets
cells
specia l
dependent
dissimilar
syntax
semantics
format
analyze
parse
create
解析:网络能通过各种各样的设备进行互连。在物理层,网络是通过中继器或集线器连接起来,主要实现把比特从一个网络传输到另一个同样的网络。在物理层的上面,网桥和交换机工作在数据链路层。它们能够接受帧,检测MAC地址,当在传输过程中采用底层协议时,把这些数据帧传送到一个不同的网络。在网络层,路由器可以连接两个网络。如果两个网络有不相同的网络层,路由器能够实现数据包的格式转换。在传输层,有能实现连接网络传输层的连接网关。最后在应用层,应用网关能转换消息的语义。比如,在E-mail 和 X.400 E-mail之间的网关必须要解析E-mail消息和改变不同的标题域。