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57题: ()存储方式常使用多副本技术实现数据冗余。
A.DAS
B.NAS
C.SAN
D.分布式
答案解析与讨论:
www.cnitpm.com/st/5374525700.html第
58题: 结构化布线系统中,实现各楼层设备间子系统互联的是()。
A.管理子系统
B.干线子系统
C.工作区子系统
D.建筑群子系统
答案解析与讨论:
www.cnitpm.com/st/5374617970.html第
59题: 以下关于网络需求分析的说法中,错误的是()。
A.应收集不同用户的业务需求
B.根据不同类型应用的业务特性,归纳和梳理出各自的网络需求
C.应撰写输出网络系统规划与设计报告
D.应充分考虑数据备份的网络需求
答案解析与讨论:
www.cnitpm.com/st/5374721428.html第
61题: Network firewalls are security devices used to stolo or mitigate() access to private networks connected to the lnternet, especially intranets. The only traffic allowed on the network is defined via firewall ()-any other traffic attempting to access the network is blocked. Networkfirewalls sit at the () line of a network, acting as a communications liaison between intenal and extenal devices, When properly configured, a firewall allows users to access any of the resources they need while simultaneously keeping out unwanted accesses. In addition to limiting access to a protected computer and network, a firewall can () all traffic coming into or leaving a network, and manage remote access to a private network through seccure authentication certificates and logins. () firewalls examine every packet that passes through the network and then accept or deny it as defined by rules set by the user.
A.Unauthorized
B.authorized
C.normal
D.frequent
A.Ports
B.policies
C.commands
D.status
A.Front
B.back
C.second
D.last
A.Reply
B.block
C.log
D.encrypt
A.Application-layer
B.Packet filtering
C.Circuit-level
D.Proxy server
答案解析与讨论:
www.cnitpm.com/st/5374921435.html