【名词&注释】
应用层(application layer)、操作系统(operating system)、物理层(physical layer)、端口扫描(port scan)、一对一(one to one)、进一步(further)、标识符(identifier)、选项卡
[单选题]用户使用匿名FTP连接远程主机，而无须成为其注册用户。下列()是匿名FTP的用户标识符(identifier)。
A. real
B. guest
C. anonymous
D. ftp
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举一反三：
[单选题]●不属于会话连接和传输连接之间的关系的是 (20) 。(20)
A. 一对多
B. 多对一
C. 一对一
D. 多对多
[单选题]一个组织的灾难恢复(DR，disasterrecovery)策略的变更时将公司的关键任务应用的恢复点目标(RPO)被缩短了，下述哪个是该变更的最显著风险?
A. 现有的DR计划没有更新以符合新的RPO
B. DR小组没有基于新的RPO进行培训
C. 备份没有以足够的频率进行以实现新的RPO
D. 该计划没有基于新的RPO进行测试
[多选题]●At a basic level, cloud computing is simply a means of delivering IT resources as (71).Almost all IT resources can be delivered as a cloud service: applications, compute power, storage capacity, networking,programming tools,even communication services and collaboration (72)。Cloud computing began as large-scale Internet service providers such as Google,Amazon,and others built out their infrastructure. An architecture emerged: massively scaled, (73) distributed system resources,abstracted as virtual IT services and managed as continuously configured, pooled resources. In this architecture, the data is mostly resident on (74)“somewhere on the Intemet”and the application runs on both the "cloud servers”and the user's browser.
A. Both clouds and grids are built to scale horizontally very efficiently. Both are built to
B. withstand failures of (75) elements or nodes. Both are charged on a per-use basis. But while grids typically process batch jobs, with a defined start and end point, cloud services can be continuous. What's more, clouds expand the types ofresources available —— file storage, databases, and Web services —— and extend the applicability to Web and enterprise applications.
C. hardware
D. computers
E. services
F. software
G. computers
H. disks
I. machines
J. tools
K. horizontally
L. vertically
M. inclined
N. decreasingly
O. clients
P. middleware
Q. servers
R. hard disks
S. entire
T. individual
U. general
V. separate
[单选题]AES算法支持几种密钥长度?()
A. 1
B. 2
C. 3
D. 5
[单选题]下列哪个不是常见扫描技术()。
A. 协议端口扫描
B. ping扫描
C. 操作系统特征扫描
D. 漏洞扫描
[单选题]在IEEE802.11标准中，实现虚拟监听机制的层次是
A. 应用层
B. 物理层
C. MAC层
D. LLC层
[单选题]在______中可以对弹出窗口阻止程序进行设置。
A. 在Internet选项“常规”选项卡的“弹出窗口阻止程序”
B. 在Internet选项“内容”选项卡的“弹出窗口阻止程序”
C. 在Internet选项“隐私”选项卡的“弹出窗口阻止程序”
D. 在Internet选项“安全”选项卡的“弹出窗口阻止程序”
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