CompTIA认证考试
Which of the following are encrypted protocols? （）(Select TWO).A、TELNETB、SSHC、POP3D、FTPE、HTTPS
题目
Which of the following are encrypted protocols? （）(Select TWO).
- A、TELNET
- B、SSH
- C、POP3
- D、FTP
- E、HTTPS
相似问题和答案
第1题：
A.Telnet
B.TCP
C.SNMP
D.UDP
第2题：
A.80
B.110
C.123
D.143
E.443
第3题：
Which of the protocols below use TCP at the transport layer? (Select four)
A. TFTP
B. SMTP
C. SNMP
D. FTP
E. HTTP
F. HTTPS
B,D,E,F 解析：Explanation:
SMTP (Simple Mail Transfer Profile for email), FTP (File Transfer Protocol), and HTTP/HTTPS (Hyper Text Transfer Protocol for internet) all use TCP because of the reliable delivery mechanism. SMTP uses TCP port 25, FTP uses TCP ports 20 and 21, HTTP uses TCP port 80, and HTTPS uses TCP port 443.
Incorrect Answers:
A, C: SNMP and TFTP use UDP as the transport mechanism. Generally speaking, protocols that use the keywords "trivial" or "simple" uses UDP, since connectionless, best effort delivery mechanism usually suffice.
第4题：
Traffic coming across port 443 is for which of the following protocols?（）
- A、SFTP
- B、FTP
- C、HTTP
- D、HTTPS
正确答案:D
第5题：
A.PPP
B.TCP/IP
C.TCP
D.POP3
E.PPPoE
第6题：
A.SFTP
B.FTP
C.HTTP
D.HTTPS
第7题：
A.RDP
B.VNC
C.SSL
D.PPTP
E.RAS
第8题：
A.TELNET
B.SSH
C.POP3
D.FTP
E.HTTPS
第9题：
Which of the following services use TCP?（）
- A、DHCP
- B、SMTP
- C、SNMP
- D、FTP
- E、HTTP
- F、TFTP
正确答案:B,D,E
第10题：
PPTP is a combination of which of the following protocols? (Select TWO).（）
- A、PPP
- B、TCP/IP
- C、TCP
- D、POP3
- E、PPPoE
正确答案:A,B