单项选择题 Refer to the exhibit. An administrator pings the default gateway at 10.10.10.1 and sees the output as shown. At which OSI layer is the problem?（）

多项选择题 某单位路由器防火墙作了如下配置：firewall enableacl 101rule permit ip source 202.38.0.00.0.0.255 destination 10.10.10.100.0.0.255rule deny tcp source 202.38.0.00.0.0.255 destination 10.10.10.100.0.0.255 destination-portgreater-than 1024rule deny ip source any destination any端口配置如下：interface Serial0ip address 202.38.111.25.255.255.255.0link-protocol pppfire wall packet-filter 101 ininterface Ethernet0Ip address 10.10.10.1255.255.255.0内部局域网主机均为10.10.10.0255.255.255.0网段，以下说法正确的是（本题假设其它网络均没有使用acl）（）。

单项选择题 Refer to the exhibit. Which command would allow the translations to be created on the router?（）