Network Port Number Quiz

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| By Terry
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Terry
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Quizzes Created: 2 | Total Attempts: 632
Questions: 18 | Attempts: 332

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Networking Quizzes & Trivia

Questions and Answers
  • 1. 

    FTP File Transfer Protocol

    Explanation
    The correct answer is 20-21 because these are the default port numbers used by the File Transfer Protocol (FTP) for data transfer and control connection respectively. FTP is a standard network protocol used for transferring files between a client and a server on a computer network. The control connection is established on port 21, which is used for sending commands and responses between the client and server. The data connection is established on port 20, which is used for transferring the actual file data.

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  • 2. 

    SSH Secure Shell

    Explanation
    SSH Secure Shell is a network protocol that allows secure remote access to a computer or server. It provides a secure encrypted channel for data communication and authentication. The given answer "22" is the port number commonly used by SSH to establish a connection between the client and the server. Port 22 is the default port for SSH, and it is used to establish a secure connection for remote login and file transfer.

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  • 3. 

    Telnet

    Explanation
    Telnet is a protocol that allows users to remotely access and manage devices or systems over a network. The given answer "23" is the default port number used by Telnet for communication. Port numbers are used to identify specific services or applications running on a device, and in the case of Telnet, port 23 is reserved for this specific protocol. By connecting to port 23 using a Telnet client, users can establish a command-line interface session with a remote device and perform various administrative tasks.

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  • 4. 

    Simple Mail Transfer protocol (SMTP)

    Explanation
    SMTP stands for Simple Mail Transfer Protocol, which is a protocol used for sending email messages between servers. Port 25 is the default port used by SMTP to transmit email messages. It is used by mail servers to establish a connection and transfer email data. Therefore, the correct answer is 25.

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  • 5. 

    Domain Name System (DNS)

    Explanation
    The number "53" is the port number used by the Domain Name System (DNS) protocol. DNS is responsible for translating domain names into IP addresses, allowing users to access websites and other resources on the internet. Port numbers are used to identify specific processes or services on a network, and port 53 is specifically reserved for DNS. By using port 53, DNS servers can communicate with each other and with client devices to facilitate the resolution of domain names.

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  • 6. 

    Dynamic Host Configuration Protocol (DHCP)

    Explanation
    The numbers 67-68 refer to the port numbers used by the Dynamic Host Configuration Protocol (DHCP). DHCP is a network protocol that allows devices to automatically obtain an IP address and other network configuration settings from a DHCP server. Port 67 is used by DHCP servers to receive client requests, while port 68 is used by DHCP clients to send requests to the server. Therefore, the correct answer is 67-68.

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  • 7. 

    Trivial File Transfer Protocol (TFTP)

    Explanation
    The number 69 is the well-known port number for the Trivial File Transfer Protocol (TFTP). TFTP is a simple file transfer protocol that allows clients to retrieve files from a remote server. It operates on UDP port 69 and is commonly used for network booting and transferring small files.

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  • 8. 

    HyperText Transfer Protocol (HTTP)

    Explanation
    The correct answer is 80 because HTTP is a protocol used for transferring hypertext over the internet, and it typically uses port 80 as the default port for communication. Port 80 is specifically designated for HTTP traffic, allowing web browsers to connect to web servers and retrieve web pages.

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  • 9. 

    Post Office Protocol (POP) Version 3

    Explanation
    The number "110" refers to the port number used by the Post Office Protocol (POP) version 3. Port 110 is the default port used for POP3, which is a protocol used for retrieving emails from a remote server. By using port 110, email clients can connect to the server and authenticate to access and download their emails.

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  • 10. 

    Network Time Protocol (NTP)

  • 11. 

    Net Bios

  • 12. 

    Internet Message Access Protocol (IMAP)

    Explanation
    IMAP is a protocol used for retrieving emails from a mail server. Port 143 is the default port used by IMAP for establishing a connection between an email client and the mail server. This port allows the client to communicate with the server and retrieve emails. Therefore, the correct answer is 143.

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  • 13. 

    Simple Network Management Protocol (SNMP)

    Explanation
    SNMP is a protocol used for managing and monitoring network devices. It operates on port numbers 161 and 162. Port 161 is used for SNMP queries, where a management system sends requests to network devices to retrieve information. Port 162 is used for SNMP traps, where network devices send notifications to the management system about specific events or conditions. Therefore, the correct answer is 161-162.

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  • 14. 

    Border Gateway Protocol (BGP)

  • 15. 

    Light Weight Directory Access Protocol (LDAP)

    Explanation
    LDAP (Lightweight Directory Access Protocol) is a protocol used for accessing and managing directory information. The given answer, 389, is the default port number for LDAP. Ports are used to establish communication between different applications, and in the case of LDAP, port 389 is commonly used for connecting to LDAP servers. By using port 389, clients can communicate with LDAP servers to perform operations such as searching, adding, modifying, and deleting directory entries.

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  • 16. 

    HyperText Transfer Protocol Over SSL/TLS (HTTPS)

    Explanation
    HTTPS is the secure version of HTTP, the protocol used for transmitting data over the internet. It adds an extra layer of security by using SSL/TLS encryption. Port 443 is the default port for HTTPS communication. When a user accesses a website using HTTPS, their browser establishes a secure connection with the server on port 443. This port is reserved for secure communication, ensuring that data transmitted between the user and the website is encrypted and protected from unauthorized access.

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  • 17. 

    Light Weight Directory Access Protocol Over TLS/SSH (LDAPS)

    Explanation
    The correct answer is 636. LDAPS is a protocol that provides secure communication over the internet. It is an extension of LDAP (Lightweight Directory Access Protocol) and adds an additional layer of security by using TLS/SSL encryption. LDAPS operates on port 636, which is specifically designated for secure LDAP communication. By using LDAPS, organizations can ensure that the data exchanged between LDAP clients and servers is encrypted and protected from unauthorized access.

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  • 18. 

    File Transfer Protocol Over TLS/SSH 

    Explanation
    The answer "989-990" refers to the port numbers used by the File Transfer Protocol (FTP) over TLS/SSH. FTP is a standard network protocol used to transfer files between a client and a server on a computer network. When using FTP over TLS/SSH, the communication is encrypted and secured. Port 989 is typically used for FTP data transfers over TLS/SSL, while port 990 is used for FTP control connections over TLS/SSL. These port numbers ensure that the FTP connection is established securely.

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  • Current Version
  • Mar 20, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Aug 29, 2016
    Quiz Created by
    Terry
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