Ports and Protocols

Question 1

which is the port number of HTTP ?

Answer 1

80

Question 2

which is the port number of HTTPS ?

Answer 2

443

Question 3

which is the port number of SMTP ?

Answer 3

25

Question 4

which is the port number of SNMP ?

Answer 4

161

Question 5

which is the port number of TELNET ?

Answer 5

23

Question 6

which is the port number of FTP ?

Answer 6

21

Question 7

which is the port number of SSH ?

Answer 7

22

Question 8

which is the port number of RDP ?

Answer 8

3389

Question 9

which is the ports numbers of NetBIOS

Answer 9

137,138,139

Question 10

which is the port number of DNS

Answer 10

53

Question 11

which is the port number of POP ?

Answer 11

110

Question 12

which is the port number of IMAP ?

Answer 12

143

Question 13

Prevent cache poisoning, taking advantage of tree-like structure to digitally sign every zone file for every domain in the DNS hierarchy.

Answer 13

DNSSEC

Question 14

Supports encryption for voice and video.

Answer 14

SRTP

Question 15

Secure file copy utilitty included in SSH suite.

Answer 15

SCP

Question 16

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.

Answer 16

POP3

Question 17

A client e-mail protocol, which download client email messages, email isn’t automatically deleted from the server.

Answer 17

IMAP4

Question 18

Server side email protocol used to send email messages from an organization’s email server. Applicaton layer protocol that uses TCP port 25.

Answer 18

SMTP

Question 19

Secure POP uses which port ?

Answer 19

995

Question 20

Secure IMAP uses which port ?

Answer 20

993

Question 21

Secure SMTP uses which port ?

Answer 21

465

Question 22

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.

Answer 22

S/MIME