Which of the following protocols is used by thin clients?()
1.Which of the following routing protocols is strictly a distance vector protocol?()A、IS-ISB、BGPC、EIGRPD、OSPF
2.Which of the following protocols is commonly used for VoIP technology?()A、TelnetB、SMTPC、SIPD、SNMP
3.多选题Which of the following protocols utilize TCP?()ANTPBNNTPCSMTPDSNMPEHTTPSFTFTP
4.Which of the following WAN protocols is a packet switching technology?()A、Frame RelayB、POTSC、PSTND、ISDN