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CompTIA Network+ Exam Cram, Third Edition by Mike Harwood

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Chapter Five. TCP/IP Routing and Addressing

Objectives

1.2 Identify commonly used TCP and UDP default ports

tri TCP ports

tri FTP – 20, 21

tri SSH – 22

tri TELNET – 23

tri SMTP – 25

DNS – 53

HTTP – 80

POP3 – 110

NTP – 123

IMAP4 – 143

HTTPS – 443

UDP ports

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