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CompTIA Network+ Objective > Ports and Protocols > Flashcards

Ports and Protocols Flashcards

1
Q

What is FTP and its port numbers?

A

FTP (File Transfer Protocol) is used to transfer files between a client and server. It uses ports 20 and 21.

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2
Q

What is SSH and its port number?

A

SSH (Secure Shell) is used for secure remote login and other secure network services. It uses port 22.

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3
Q

What is SFTP and its port number?

A

SFTP (Secure File Transfer Protocol) is a secure version of FTP, using SSH for encryption. It uses port 22.

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4
Q

What is Telnet and its port number?

A

Telnet is used for remote login sessions, allowing a user to control a device over a network. It uses port 23.

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5
Q

What is SMTP and its port number?

A

SMTP (Simple Mail Transfer Protocol) is used to send emails. It uses port 25.

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6
Q

What is DNS and its port number?

A

DNS (Domain Name System) translates domain names to IP addresses. It uses port 53.

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7
Q

What is DHCP and its port numbers?

A

DHCP (Dynamic Host Configuration Protocol) assigns IP addresses to devices on a network. It uses ports 67 and 68.

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8
Q

What is TFTP and its port number?

A

TFTP (Trivial File Transfer Protocol) is a simple, unsecured file transfer protocol. It uses port 69.

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9
Q

What is HTTP and its port number?

A

HTTP (Hypertext Transfer Protocol) is used for transferring web pages on the internet. It uses port 80.

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10
Q

What is POP3 and its port number?

A

POP3 (Post Office Protocol v3) is used to retrieve emails from a server. It uses port 110.

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11
Q

What is NTP and its port number?

A

NTP (Network Time Protocol) is used to synchronize clocks on network devices. It uses port 123.

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12
Q

What is IMAP and its port number?

A

IMAP (Internet Message Access Protocol) is used to retrieve and manage emails from a server. It uses port 143.

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13
Q

What is SNMP and its port numbers?

A

SNMP (Simple Network Management Protocol) is used for network management and monitoring. It uses ports 161 and 162.

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14
Q

What is LDAP and its port number?

A

LDAP (Lightweight Directory Access Protocol) is used to access and manage directory information. It uses port 389.

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15
Q

What is HTTPS and its port number?

A

HTTPS (Hypertext Transfer Protocol Secure) is a secure version of HTTP, using SSL/TLS for encryption. It uses port 443.

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16
Q

What is SMB and its port number?

A

SMB (Server Message Block) is used for providing shared access to files and printers. It uses port 445.

17
Q

What is Syslog and its port number?

A

Syslog is used for logging system messages. It uses port 514.

18
Q

What is SMTP TLS and its port number?

A

SMTP TLS is SMTP with Transport Layer Security, providing encrypted email transmission. It uses port 587

19
Q

What is LDAPS and its port number?

A

LDAPS (Lightweight Directory Access Protocol over SSL) is a secure version of LDAP. It uses port 636.

20
Q

What is IMAP over SSL and its port number?

A

IMAP over SSL is a secure version of IMAP. It uses port 993.

21
Q

What is POP3 over SSL and its port number?

A

POP3 over SSL is a secure version of POP3. It uses port 995.

22
Q

What is SQL Server and its port number?

A

SQL Server is a relational database management system. It uses port 1433.

23
Q

What is SQLnet and its port number?

A

SQLnet is used for Oracle databases to communicate over a network. It uses port 1521.

24
Q

What is MySQL and its port number?

A

MySQL is an open-source relational database management system. It uses port 3306

25
Q

What is RDP and its port number?

A

RDP (Remote Desktop Protocol) is used for remote desktop access. It uses port 3389.

26
Q

What is SIP and its port numbers?

A

SIP (Session Initiation Protocol) is used for initiating, maintaining, and terminating real-time sessions like VoIP. It uses ports 5060 and 5061

27
Q

ICMP

A

Used for network diagnostics, such as ping

28
Q

TCP

A

Connection-oriented protocol providing reliable data transfer.

29
Q

UDP

A

Connectionless protocol providing faster, but less reliable, data transfer.

30
Q

GRE

A

Encapsulation protocol used for creating point-to-point links.

31
Q

IPSec

A

Suite of protocols for securing IP communications.

32
Q

AH/ESP

A

Part of IPSec, providing authentication and encryption for secure communications

33
Q

What is the difference between connectionless and connection-oriented protocols?

A

-Connectionless protocols (e.g., UDP): Send data without establishing a connection, faster but less reliable.

-Connection-oriented protocols (e.g., TCP): Establish a connection before sending data, ensuring reliable delivery.

CompTIA Network+ Objective (28 decks)

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