common network ports

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Questions and Answers

Which protocol is commonly used to transfer files from one device to another?

  • FTP (correct)
  • HTTP
  • DNS
  • SMTP

What are the two port numbers used by FTP?

  • TCP port 80 and TCP port 443
  • TCP port 20 and TCP port 21 (correct)
  • UDP port 53 and UDP port 123
  • TCP port 25 and TCP port 110

Why is it important for both the server and the client to know the port number for communication?

  • To determine the protocol used
  • To allow or disallow traffic through firewalls (correct)
  • To establish a reliable connection
  • To ensure secure communication

Which protocol is commonly used for terminal communication and provides encryption for data sent over the network?

<p>SSH (B)</p>
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Which protocol is commonly used for email communication between mail servers and also for sending mail from mail clients?

<p>SMTP (C)</p>
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What is the purpose of a well-known port number?

<p>To specify the type of data being transferred (A)</p>
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Which protocol is commonly used for receiving mail in email clients?

<p>IMAP (A)</p>
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What might firewalls use to make decisions about allowing or disallowing traffic?

<p>Port numbers (A)</p>
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What kind of authentication is commonly required to log in to a remote device using FTP?

<p>Username and password (B)</p>
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Which protocol is commonly used for resolving IP addresses from fully qualified domain names?

<p>DNS (D)</p>
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Why is it important to know the protocols used by specific port numbers?

<p>To identify the type of data being transferred (D)</p>
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Which protocol is commonly used for automatically assigning IP addresses to devices on a network?

<p>DHCP (A)</p>
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Which protocol is commonly used for connecting to a remote device through a terminal or command line front end, but sends all communication in clear text?

<p>Telnet (A)</p>
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Which protocol is commonly used for providing a terminal connection to a remote device and encrypts data sent over the network?

<p>SSH (D)</p>
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Which protocol is commonly used by web browsers to communicate with web servers?

<p>HTTP (C)</p>
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Which protocol is used for retrieving email messages to an email client?

<p>POP3 (C)</p>
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Which protocol is commonly used by Microsoft Windows for file transfers and printing?

<p>SMB (A)</p>
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Which protocol is used for querying infrastructure devices for performance details and receiving metrics in return?

<p>SNMP (C)</p>
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Which protocol uses TCP port 161 for performing queries and UDP port 162 for sending alerts?

<p>SNMP (B)</p>
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Which version of SNMP provides encryption, message integrity, authentication, and encryption of all SNMP data?

<p>SNMP version 3 (D)</p>
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Which protocol is commonly used to query directories on modern networks?

<p>LDAP (D)</p>
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Which protocol is commonly used for remote desktop services in Windows?

<p>RDP (C)</p>
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Which operating system is RDP almost exclusively found on?

<p>Windows (B)</p>
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Which protocol is commonly used to query Microsoft Active Directory?

<p>LDAP (B)</p>
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What is the default TCP port used by RDP?

<p>3389 (B)</p>
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What is the purpose of RDP?

<p>To provide remote communication (D)</p>
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Which protocol is commonly used to query LDAP?

<p>LDAP (B)</p>
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Which protocol is commonly used for remote access to someone's desktop?

<p>RDP (C)</p>
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Which one of the following is true about RDP?

<p>It is exclusively used on Windows operating systems (D)</p>
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Which one of the following operating systems does not have an RDP client application?

<p>Android (C)</p>
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