Which of the following protocols can be found at the application layer?（）A、TelnetB、TCPC、SNMPD、UDP
Which of the following protocols can be found at the application layer?（）
- A、Telnet
- B、TCP
- C、SNMP
- D、UDP
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Which of the following routing protocols is strictly a distance vector protocol?（）A、IS-ISB、BGPC、EIGRPD、OSPF
Which of the following WAN protocols is a packet switching technology?（）A、Frame RelayB、POTSC、PSTND、ISDN
Which of the following protocols is commonly used for VoIP technology?（）A、TelnetB、SMTPC、SIPD、SNMP
多选题Which of the following protocols utilize TCP?（）ANTPBNNTPCSMTPDSNMPEHTTPSFTFTP