Ports and Protocols Flashcards
which is the port number of HTTP ?
80
which is the port number of HTTPS ?
443
which is the port number of SMTP ?
25
which is the port number of SNMP ?
161
which is the port number of TELNET ?
23
which is the port number of FTP ?
21
which is the port number of SSH ?
22
which is the port number of RDP ?
3389
which is the ports numbers of NetBIOS
137,138,139
which is the port number of DNS
53
which is the port number of POP ?
110
which is the port number of IMAP ?
143
Prevent cache poisoning, taking advantage of tree-like structure to digitally sign every zone file for every domain in the DNS hierarchy.
DNSSEC
Supports encryption for voice and video.
SRTP
Secure file copy utilitty included in SSH suite.
SCP
Email protocol used to receive e-mail through client applications. Download all the e-mail in the inbox, and then delete the email from the server.
POP3
A client e-mail protocol, which download client email messages, email isn’t automatically deleted from the server.
IMAP4
Server side email protocol used to send email messages from an organization’s email server. Applicaton layer protocol that uses TCP port 25.
SMTP
Secure POP uses which port ?
995
Secure IMAP uses which port ?
993
Secure SMTP uses which port ?
465
Protocol build into every email client that enables users to make e-mail attachments. Works by converting the attached file to text. Enables individual e-mail clients to attach personal certificates and digital signatures to email messages. Enables users to encrypt email messages to each other.
S/MIME
