单项选择题

You are designing the configuration of the external DNS server to meet the business and technical requirements. What should you do?（）

A.Configure a root zone on the external DNS server.
B.Configure a stub zone for.com on the external dns server.
C.Configure the external DNS server to use the default root hints.
D.Configure the External DNS server to use the ISP'S DNS server as a forwarder.

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多项选择题

You are designing a strategy to allow internal users in Dallas to resolve domain names. What are three possible ways to achieve the goal?（）

A.Configure the internal DNS server to have a root zone.
B.Configure the Dallas DNS server to use the default root hints.
C.Configure the Dallas DNS server to forward all request for the external namespace to the external DNS server.
D.Create a caching-only DNS server on the perimeter network.
E.Create a stub zone for the external namespace on the Dallas DNS server.

单项选择题

You are designing a strategy to allow users to gain VPN access to the internal network. What should you do?（）

A.Allow all inbound VPN traffic to pass through the internal firewall and the perimeter firewall.
B.Allow all inbound VPN traffic to pass through the perimeter firewall only.
C.Allow all VPN traffic from the source IP address of 131.107.1.14 to pass through the internal firewall.
D.Allow all VPN traffic from the source IP address of 191.168.1.0/24 to pass through the perimeter firewall.

单项选择题

You are designing the DNS name resolution strategy for the internal network. What should you do?（）

A.Configure all internal DNS servers to use the default root hints.
B.Disable recursion on the DNS server in Seattle. Configure the Seattle DNS to use Dallas DNS server as a forwarder.
C.Create a root zone on the DNS server in Dallas. Configure the Seattle DNS server to use the Dallas DNS server as a forwarder.
D.Create a root zone on the DNS server in both Dallas and Seattle.