问题 问答题

如下图所示,某校园网使用10 Gbit/s的POS技术与CERNET相连,POS接口的帧格式使用SDH。路由协议的选择方案是校园网采用OSPF动态路由协议,校园网与CERNET的连接使用静态路由协议。另外,还要求在路由器R3上配置一个loopback接口,接口的IP地址为192.167.150.1。

请阅读以下R3的配置信息,并补充空白处的配置命令或参数,按题目要求完成路由器的配置。

Router-R3# conf igure teminal

Router-R3 (config)#

Router-R3 (conf ig)# ineterface pos3/1

Router-R3 (config-if)# description To CERNET

Router-R3 (config-if)# bandwidth ______

Router-R3 (config-if)# ip address 222.112.37.1255.255.255.252

Router-R3 (config-if)# crc 32

Router-R3 (config-if)# ______配置帧格式

Router-R3 (config-if)# no ip directed-broadcast

Router-R3 (config-if)# pos flag sls0 2

Router-R3 (config-if)# no shutdown

Router-R3 (config-if)# exit

Router-R3 (config)# interface loopback 0

Router-R3 (config-if)# ip address 192.167.150.1 ______

Router-R3 (config-if)# no ip toute-cache

Router-R3 (config-if)# no ip mroute-cache

Router-R3 (config-if)# exit

Router-R3 (config)# router ospf 63

Router-R3 (config-router)# metwork 163.112.0.0 ______ area 0

Router-R3 (config-router)# redistribute connected metric-type 1 subnets

Router-R3 (config-router)# area 0 rang 167.112 0.0 ______

Router-R3 (config-router)# exit

Router-R3 (config)#

Router-R3 (config)# ip route 0.00.00.0.0.0222.112.37.2

Router-R3 (conf ig)# exit

Router-R3 (config)# write

答案

参考答案:

10000000;pos framing sdh;250.255.255.255;0.0.255.255;255.255.0.0

解析:

使用bandwidth命令设置接口带宽,带宽单位为kbps。题目中带宽为10Gbit/s=10000000kbit/s。 本题与广域网的连接采用POS接口,且POS接口的帧格式使用SDH,命令为pos framing sdh。 lookback接口主要用于网络管理。网络管理员为lookback接口分配一个IP地址作为管理地址,其掩码应为255.255.255.250,可以使用这个IP地址登录到路由器上,对路由器进行配置与管理。 在路由器的OSPF配置模式下,使用“network ip<子网号><wildcard-mask>area<区域号>”的命令参与OSPF的子网地址,或使用“area<区域号>range<子网地址><子网掩码>”命令定义某一特定范嗣子网的聚合。<wildcard-mask>是子网掩码的反码。本题中子网地址为167.112.0.0,则可判断子网掩码为255.255.0.0,子网掩码的反码为0.0.255.255。

多项选择题

The Accountancy Teaching Co (AT Co) is a company specialising in the provision of accountancy tuition courses in the private sector. It makes up its accounts to 30 November each year. In the year ending 30 November 2009, it held 60% of market share. However, over the last twelve months, the accountancy tuition market in general has faced a 20% decline in demand for accountancy training leading to smaller class sizes on courses. In 2009 and before, AT Co suffered from an ongoing problem with staff retention, which had a knock-on effect on the quality of service provided to students. Following the completion of developments that have been ongoing for some time, in 2010 the company was able to offer a far-improved service to students. The developments included:– A new dedicated 24 hour student helpline– An interactive website providing instant support to students– A new training programme for staff– An electronic student enrolment system– An electronic marking system for the marking of students’ progress tests. The costs of marking electronically were expected to be $4 million less in 2010 than marking on paper. Marking expenditure is always included in cost of salesExtracts from the management accounts for 2009 and 2010 are shown below:

On 1 December 2009, management asked all ‘freelance lecturers’ to reduce their fees by at least 10% with immediate effect (‘freelance lecturers’ are not employees of the company but are used to teach students when there are not enough of AT Co’s own lecturers to meet tuition needs). All employees were also told that they would not receive a pay rise for at least one year. Total lecture staff costs (including freelance lecturers) were $41·663 million in 2009 and were included in cost of sales, as is always the case. Freelance lecturer costs represented 35% of these totallecture staff costs. In 2010 freelance lecture costs were $12·394 million. No reduction was made to course prices in the year and the mix of trainees studying for the different qualifications remained the same. The same type and number of courses were run in both 2009 and 2010 and the percentage of these courses that was run by freelance lecturers as opposed to employed staff also remained the same.Due to the nature of the business, non-financial performance indicators are also used to assess performance, as detailed below.

Required:Assess the performance of the business in 2010 using both financial performance indicators calculated from the above information AND the non-financial performance indicators provided.

单项选择题