The process of converting IP addresses from 32-bit addresses to ( ) addresses is currently underway. A: 64-bit B: 128-bit C: internet D: binary

What is stored in the ARP table of the Internet host? ( ) A: IP addresses B: MAC addressses C: the mapping of domain names to IP addressses D: the mapping of IP addresses to MAC addressses

Domain name system converts IP addresses to domain names.

DHCP (dynamic host configuration protocol) provides __________ to the client. A: IP Addresses B: MAC Addresses C: URL D: All of the above

The main task of the Internet’s Domain Name System （DNS） is to： A: Translate port numbers to IP addresses B: Provide an authority for registering domain names C: Specify the standards for Internet domain names D: Translate mnemonic（记忆的） names to IP addresses

Which device is normally used to translate telephone numbers or names to IP addresses for call routing in an H.323 network？ （） A: call agent B: IP phone C: multipoint control unit D: gatekeeper

Personal information such as names, e-mail addresses, phone numbers and(__)(person) addresses can be leaked online.

Which of the following addresses is acceptable?

可以用（ ）选项来配置IPv6地址。 A: ipv6.addresses B: ip6.addresses C: ipv6.gateway D: ip6.gateway

‍可以用（ ）选项来配置IPv6地址。​ A: ipv6.addresses B: ip6.addresses C: ipv6.gateway D: ip6.gateway