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H3CSE-RS-NSO Sample Questions:

1. 关于黑洞 MAC 地址表说法正确的是 ?

A) 通过配置黑洞 MAC 地址表项,可以过滤掉非法用户
B) 由用户手工配置,并下发到各接板,表项不可老化
C) 在系统复位、接口板热插拔或接口板复位后,保存的表项不会丢失
D) 配置黑洞 MAC 地址后,源 MAC 地址或目的 MAC 地址是该 MAC 的报文将会被丢弃

2. 用户接入认证授权有方式。

A) CA 认证授权
B) 本地认证授权
C) RADIUS 认证授权
D) HWTACAC 认证授权

3. 根据中华人民共和国行业标准 G/T 106-1999 《有线电视广播系统技术规范》的规定频段用来传送传统的模拟电视节目、数字电视节目和 VOD 。

A) 87MHz~108MHz
B) 5~65MHz
C) 0~30MHz
D) 110MHz~lOOOMHz

4. 在 MSR 路由器配置如下命令:
Qos cql 1 queue 1 serving 1000
Qos cql 1 queue 2 serving 2000
Qos cql 1 queue 3 serving 500
Qos cql 1 queue 4 serving 1500
Qos cql 1 protocol ip tcp ftp-data queue 2
Qos cql 1 protocol ip udp tftp queue 3
Qos cql 1 protocol ip pop3 queue 4
#
Interface GigabitEthernet0/1
Port link-mode route
Ip address 192.168.1.1 255.255.255.0
Duplex full
Speed 10
Qos cq pql 1
从 G0/1 转发的流量包括 Telnet 、 FTP Data 、 TFTP 及 POP3 流量均为 4Mbps ,端口无其它流量,则 TFTP 报文大约可以使用的宽带是

A) 40%
B) 10%
C) 配置有误
D) 30%
E) 20%

5. 在 MSR 路由器显示信息如下:
Acl number 2000
Rule 0 permit source 192.168.0.0 0.0.0.255
Acl number 2002
Rule 0 permit source 192.168.2.0 0.0.0.255
#
Traffic classifier 2 operator and if-match acl 2002
Traffic classifier 1 operator and if-match acl 2000#
Traffic behavior 2
Queue af bandwidth pct 30 traffic behavior 1
Queue ef bandwidth pct 30 cbs-ratio 25
#
Qos polic test
Classifier 1 behavior 1
Classifier 2 behavior 2
#
lnterface GigabitEthernet0/1 port link-mode route
Duplex full speed 10
lp address 192.168.1.1255.255.255.0
qos reserved-bandwidth pct 80
Qos appl polic test outbound
当源地址为 192.168.0.2 、 192.168.2.2 、 192.168.3.2 的报文流量速率分别为 4Mbps 、 4Mbps 、 6Mbps ,无其它背景流量,从端口 G0/1_ 向外转发时。
则以下说法不正确是

A) 源地址为 192.168.2.2 的报文转发速率约为 2.4Mbps
B) 源地址为 192.168.0.2 的报文转发速率约为 3Mbps
C) 源地址为 192.168.2.2 的报文转发速率约为 4Mbps
D) 源地址为 192.168.2.2 的报文转发速率约为 3Mbps
E) 源地址为 192.168.0.2 的报文转发速率约为 4Mbps
F) 源地址为 192.168.0.2 的报文转发速率约为 2.4Mbps

Solutions: