TCP/IP Applications

Question 1

What is the designated port for FTP in active mode?

Answer 1

20/21

FTP uses port 21 for passive mode.

Question 2

What protocol does SSH use?

Answer 2

TCP

SSH provides secure remote control.

Question 3

What is the designated port for Telnet?

Answer 3

23

Telnet is used for remote control.

Question 4

What port does SMTP use for sending e-mail?

Answer 4

25

SMTP is the protocol for sending e-mail.

Question 5

What is the designated port for DNS?

Answer 5

53

DNS is used for naming.

Question 6

What ports does DHCP use for server and client?

Answer 6

67 (server), 68 (client)

DHCP assigns IP information.

Question 7

What is the designated port for TFTP?

Answer 7

69

TFTP is used for file transfer.

Question 8

What port does HTTP use?

Answer 8

80

HTTP is the protocol for the Web.

Question 9

What is the designated port for POP3?

Answer 9

110

POP3 is used for e-mail retrieval.

Question 10

What port does NTP/SNTP use?

Answer 10

123

NTP/SNTP is used for timing.

Question 11

What is the designated port for IMAP4?

Answer 11

143

IMAP4 is used for e-mail retrieval.

Question 12

What port does HTTPS use?

Answer 12

443

HTTPS is the secure version of HTTP.

Question 13

What is the designated port for SQL Server?

Answer 13

1433

SQL Server typically uses TCP ports 1433, 4022, 135, 1434.

Question 14

What is the designated port for Oracle Database?

Answer 14

1521

Oracle Database is another commonly used database server.

Question 15

What is the designated port for MySQL?

Answer 15

3306

MySQL is a widely used database server.

Question 16

True or False: DNS uses TCP for all its actions.

Answer 16

False

DNS uses TCP for some actions, as specified in Chapter 9.

Question 17

Fill in the blank: DHCP assigns _______ information.

Answer 17

IP

DHCP is crucial for network configuration.

Question 18

What are the main functions of FTP?

Answer 18

• File transfer
• Active and passive modes

FTP is essential for transferring files over the network.

Question 19

What does the port number indicate in TCP/IP applications?

Answer 19

Designated communication endpoint

Each application has a specific port number for communication.

Question 20

What range of ports is classified as well-known ports?

Answer 20

1-1023

Question 21

True or False: Registered ports are in the range of 1024-49151.

Answer 21

True

Question 22

Fill in the blank: Dynamic, ephemeral, or private ports are in the range of _____ to _____ .

Answer 22

49152 to 65535

Question 23

Which type of port is primarily used for system or widely used services?

Answer 23

Well-known ports

Question 24

What is the primary purpose of registered ports?

Answer 24

To allow software applications to register their services with the IANA.