Network Fundamentals Chapter 3
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What is the port number for domain name system (DNS)
About This Quiz
Network Fundamentals Chapter 3 focuses on the identification of port numbers for key network services such as DNS, HTTP, HTTPS, SMTP, POP, and Telnet. This quiz enhances understanding of essential network protocols and their operational ports, crucial for networking professionals.
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- 2.
What is the port number for HTTP
Explanation
Port number 80 is the standard port used for HTTP (Hypertext Transfer Protocol) communication. When a client sends an HTTP request to a server, it uses port 80 by default. Similarly, when a server responds to the client's request, it sends the response back using port 80. This port number is well-known and widely used for web browsing and other HTTP-based applications.Rate this question:
- 3.
What is the port number for HTTPS
Explanation
HTTPS (Hypertext Transfer Protocol Secure) is a secure version of HTTP that is used to transmit sensitive information securely over the internet. The port number 443 is specifically assigned for HTTPS communication. When a user accesses a website using HTTPS, the data is encrypted and transmitted over port 443, ensuring that the information remains confidential and protected from unauthorized access.Rate this question:
- 4.
What is the port number for simple mail transfer protocol (SMTP)
Explanation
The port number for simple mail transfer protocol (SMTP) is 25.Rate this question:
- 5.
What is the port number for post office protocol (POP)
Explanation
The port number for post office protocol (POP) is 110. This is the default port used by POP to receive incoming email messages from a mail server. POP is a protocol used by email clients to retrieve email messages from a mail server. By using port number 110, the email client can establish a connection with the mail server and download the emails stored on the server.Rate this question:
- 6.
What is the port number for telnet
Explanation
The port number for telnet is 23. Telnet is a protocol that allows users to remotely access and manage devices or systems over a network. The port number serves as a virtual address that helps to establish a connection between the client and the server. In the case of telnet, port 23 is used as the default port for communication.Rate this question:
- 7.
What is the port number for DHCP
Explanation
The port number for DHCP is 67. This port number is used by DHCP servers to listen for client requests and provide them with IP addresses and other network configuration information. DHCP (Dynamic Host Configuration Protocol) is a network protocol that allows devices to obtain IP addresses automatically, eliminating the need for manual configuration. By using port number 67, DHCP servers can efficiently communicate with clients and assign them unique IP addresses within a network.Rate this question:
- 8.
What two ports does FTP use
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Port 20 and 19
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Port 30 and 31
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Port 20 and 21
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Port 10 and 11
Correct Answer
A. Port 20 and 21Explanation
FTP (File Transfer Protocol) uses two ports: port 20 for data transfer and port 21 for control commands. Port 20 is used for the actual transfer of data between the FTP server and client, while port 21 is used for establishing the initial connection and sending control commands. These two ports work together to facilitate the efficient transfer of files over a network using FTP.Rate this question:
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- 9.
The DNS server stores different types of resource records to resolve names. Which of the following are records
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DNAME
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A
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MC
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NS
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MX
Correct Answer(s)
A. A
A. NS
A. MXExplanation
The DNS server stores different types of resource records to resolve names. The A record is used to map a domain name to an IP address. The NS record identifies the authoritative DNS servers for a domain. The MX record specifies the mail server responsible for accepting email messages for a domain. Therefore, A, NS, and MX are all valid types of resource records stored in a DNS server.Rate this question:
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- 10.
Three common message types are
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GET
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POST
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PUT
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GOT
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SHOT
Correct Answer(s)
A. GET
A. POST
A. PUTExplanation
The correct answer is GET, POST, and PUT because these are three common message types used in web development and API communication. GET is used to retrieve data from a server, POST is used to send data to a server to create a new resource, and PUT is used to update an existing resource on the server. The options "GOT" and "SHOT" are not valid message types in this context.Rate this question:
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Current Version
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Mar 21, 2023Quiz Edited by
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Jul 20, 2010Quiz Created by
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