2017下半年网络规划设计师考试已经结束,编程学习网小编为大家汇总了2017下半年网络规划设计师考试上午真题,以下为第六部分。
试题51
某企业有电信和联通2条互联网接入线路,通过部署( )可以实现内部用户通过电信信道访问电信目的的IP地址,通过联通信道访问联通目的的IP地址。也可以配置基于( )的策略路由,实现行政部和财务部通过电信信道访问互联网,市场部和研发部通过联通信道访问互联网。
A.负载均衡设备
B.网闸
C.安全设计设备
D.上网行为管理设备
A.目标地址
B.源地址
C.代价
D.管理距离
试题52
某企业网络管理员发现数据备份速率突然变慢,初步检查发现备份服务器和接入交换机的接口速率均显示为百兆,而该连接两端的接口均为千兆以太网接口,且接口速率采用自协商模式。排除该故障的方法中不包括( )。
A.检查设备线缆
B.检查设备配置
C.重启设备端口
D.重启交换机
试题53
某企业门户网站(www.xxx.com)被不法分子入侵,查看访问日志,发现存在大量入侵访问记录,如下图所示。
www.xxx.com/news/html/?0?union <http://www.xxx.com/news/html/?0'union> select 1 from (select count(*),concat(floor(rand(0)*2),0x3a,(select concat(user,0x3a,password)from pwn_base_admin limit 0,1),0x3a)a from information_schema.tables group by a)b where’1’=’1.htm
该入侵为( )攻击,应配备( )设备进行防护。
A.DDOS
B.跨站脚本
C.SQL注入
D.远程命令执行
A.WAF(WEB安全防护)
B.IDS(入侵检测)
C.漏洞扫描系统
D.负载均衡
试题54
Typically,an IP address refers to an individual host on a particular network. IP also accommodates addresses that refer to a group of hosts on one or more networks.Sunch addresses are referred to as multicast addresses,and the act of sending a packet from a source to the members of a ( )group is referred to as multicasting. Multicasting done ( 72) the scope of a single LAN segment is straightforward. IEEE 802 and other LAN protocols include provision for MAC-level multicast addresses. A packet with a multicast address is transmitted on a LAN segment.Those stations that are members of the ( )multicast group recognize the multicast address and ( )the packet.In this case,only a single copy of the packet is ever transmitted.This technique works because of the ( )nature of a LAN:A transmission from any one station is received by all other stations on the LAN.
A.numerous
B.only
C.single
D.multicast
A.within
B.out of
C.beyond
D.cover
A.different
B.unique
C.special
D.corresponding
A.reject
B.accept
C.discard
D.transmit
A.multicast
B.unicast
C.broadcast
D.multiple unicast
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