多项选择题
根据下图，该access list被配置在路由器RTB的S0/0接口上的OUT方向，哪两个数据包会被DENY，如果被路由到该接口上的话？（）
A.source ip address：192.168.15.5 destination port：21
B.source ip address：192.168.15.37 destination port：21
C.ssource ip address192.168.15.41 destination port：21
D.source ip address：192.168.15.36 destination port：23
E.source ip address：192.168.15.46 destination port：23
F.source ip address：192.168.15.49 destination port：23
相关考题
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单项选择题
An administrator issues the command ping 127.0.0.1 from the command line prompt on a PC. If a reply is received, what does this confirm（）。
A.The PC has connectivity with a local host.
B.The PC has connectivity with a Layer 3 device.
C.The PC has a default gateway correctly configured.
D.The PC has connectivity up to Layer 5 of the OSI model.
E.The PC has the TCP/IP protocol stack correctly installed. -
单项选择题
How dose a DHCP server dynamically assign IP address to host?（）
A.Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement.
B.Addresses are assigned for a fixed period of time.At the end of period,a newquest for an address must be made,and another address is then assigned.
C.Addresses are leased to host.A host will usually keep the same address by periodically contacting the DHCP sever to renew the lease.
D.Addresses are permanently assigned so that the host uses the same address at all times. -
多项选择题
哪两种方法被推荐用来保守网络设备的配置文件不受外网的威胁？（）
A.允许unrestricted访问到console或VTY口
B.用防火墙去限制外网的网络设备访问
C.因为数据被自动加密，所以总是允许使用TELNET命令访问网络设备的命令行
D.使用SSH或其他加密、认证机制去访问设备的配置
E.为了避免丢失密码，所以不对密码进行加密（明文）
