61、在大型无线网络中，AP通常通过DHCP option( )来获取AC的IP地址。

A.43

B.60

C.66

D.138

参考答案：A

62、网络规划中，冗余设计不能( )。

A.提高链路可靠性

B.增强负载能力

C.提高数据安全性

D.加快路由收敛

参考答案：D

63、某公司局域网使用DHCP动态获取10.1.0.1/24网段的IP地址，某天公司大量终端获得了192.168.1.0/24网段的地址，可在接入交换机上配置( )功能杜绝该问费再次出现。

A.dhcp relay

B.dhcp snooping

C.mac-address static

D.arp static

参考答案：B

64、项目范围管理过程如下所示，其正确的流程顺序是( )。

①定义范围

②核实范围

③收集需求

④控制范围

⑤创建工作分解结构

A.②④①③⑤

B.①②④③⑤

C.③⑤①②④

D.③①⑤②④

参考答案：D

65、Network security is the protection of the underlying networkinginfrastructur (1) access, misuse, or theft. It involves creating a secureinfrastructure for device and applications to work in a (2) manner.

Network security combines multiple defenses at the edge and in thenetwork. Each network security layer implements (4) controls.Authorized users gain access to network resources. A (3) is a networdevice that monitors incoming and outgoing network traffic and decideswhetherblock specific trffic based on a defined set of security rules. Avirtual (5) encrypts the connection from an endpoint to a network,often over the internet.remote-aceess VPN uses IPsee or Seeure Soekets Layer to aufhenticate thebetween device and network.

(1)A.unauthorized

B.authorized

C.normal

D.frequent

(2)A.economical

B.secure

C.fair

D.efficient

(3)A.computing

B.tanstation

C.policies

D.simulations

(4)A.firewall

B.router

C.gateway

D.switch

(5)A.public

B.private

C.personal

D.political

参考答案：A、B、C、A、B