cisco 2

Question 1

FTP

Answer 1

20 and 21

Question 2

SSH

Answer 2

22

Question 2

SMTP

Answer 2

25

Question 2

DNS

Answer 2

53

Question 2

HTTP

Answer 2

80

Question 3

POP3

Answer 3

110

Question 3

ICANN

Answer 3

Internet Corporation for Assigning Names and Numbers

Question 3

IMAP

Answer 3

143

Question 3

Registered category

Answer 3

A registered port:

Is assigned by ICANN for a newly created network service.
Has port numbers ranging from 1024 to 49151.

Question 3

HTTPS

Answer 3

443

Question 4

Dynamic (private or high) category

Answer 4

A dynamic port:

Is assigned when a network service establishes contact and released when the session ends.
Allows applications to listen to the assigned port for other incoming requests. Traffic for a protocol can be received through a port other than the port which the protocol is assigned. This requires that the destination application or service is listening for that type of traffic on that port.
Has port numbers ranging from 49,152 to 65,535.

Question 5

Well-known category

Answer 5

A well-known port is:

Assigned for specific protocols and services.
Has port numbers ranging from 0 to 1023.

Question 6

File Transfer Protocol (FTP)

Answer 6

TCP 20 21

Question 7

Secure Shell (SSH)

Answer 7

TCP UDP 22

Question 8

Telnet

Answer 8

TCP UDP 23

Question 9

Simple Mail Transfer Protocol (SMTP)

Answer 9

TCP UDP 25

Question 10

Domain Name Server (DNS)

Answer 10

TCP UDP 53

Question 11

Dynamic Host Configuration Protocol (DHCP)

Answer 11

UDP 67 68

Question 12

Trivial File Transfer Protocol (TFTP)

Answer 12

UDP 69

Question 13

Hypertext Transfer Protocol (HTTP)

Answer 13

TCP 80

Question 14

Post Office Protocol (POP3)

Answer 14

TCP 110

Question 15

Network Time Protocol (NTP)

Answer 15

UDP 123

Question 16

Network News Transport Protocol (NNTP)

Answer 16

TCP 119

Question 17

Internet Message Access Protocol (IMAP4)

Answer 17

TCP 143

Question 18

Simple Network Management Protocol (SNMP)

Answer 18

161 162 TCP UDP

Question 19

Lightweight Directory Access Protocol (LDAP)

Answer 19

TCP 389

Question 20

HTTP Secure Sockets Layer (SSL)

Answer 20

TCP 443

Question 21

Simple Mail Transport Protocol (SMTP)

Answer 21

SMTP is an email relay protocol

Question 22

Post Office Protocol Version 3 (POP3)

Answer 22

POP3 is an email relay protocol

Question 23

File Transfer Protocol (FTP)

Answer 23

FTP is a file transferring protocol that uses TCP

Question 24

Trivial File Transfer Protocol (TFTP)

Answer 24

TFTP is a file transferring protocol that uses UDP

Question 25

Simple Network Management Protocol (SNMP)

Answer 25

SNMP is a management and troubleshooting protocol