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Network Protocols

Communication protocols in a network

5 minutes 5 Questions

Network Protocols are standardized rules that determine how data is transmitted and received across networks, enabling different devices to communicate effectively regardless of their hardware or software differences. These protocols operate at various layers of the OSI model. At the Application l…

Concepts covered
Dynamic Host Configuration Protocol (DHCP)OSI ModelIPv4 vs IPv6Transport Layer Security (TLS) / Secure Sockets Layer (SSL)Quality of Service (QoS)TCP/IP ModelSubnettingRouting ProtocolsNetwork Address TranslationDomain Name System (DNS)
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CompTIA Network+ - Network Protocols Example Questions

Test your knowledge of Network Protocols

Question 1

What protocol is used for email transmission?

Correct Answer: SMTP

The correct answer is SMTP. Simple Mail Transfer Protocol (SMTP) is the standard protocol for sending emails across the Internet. DNS, which stands for Domain Name System, is used to convert human-friendly domain names into IP addresses. HTTP (HyperText Transfer Protocol) is used for transferring hypertext requests and information between servers and browsers, which is commonly seen in website URLs. TCP (Transmission Control Protocol) is a foundational protocol in the suite of internet protocols, but it is used broadly for sending network packets and not specifically for email transmission.

Question 2

Which protocol is used for transferring files between clients and servers on a network?

Correct Answer: File Transfer Protocol (FTP)

The File Transfer Protocol (FTP) is the correct answer because it is a standard network protocol used for the transfer of files between clients and servers on a network. FTP uses the client-server model where the client requests a file, and the server provides it. Simple Network Management Protocol (SNMP) on the other hand, is not used for transferring files but for management and monitoring of network devices. Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) are both used for sending packets of data across a network, but they do not specifically cater to file transfers as FTP does.

Question 3

Which protocol is used for voice communication over the internet?

Correct Answer: VoIP

The correct protocol used for voice communication over the Internet is VoIP (Voice over Internet Protocol). VoIP technology allows voice communications and multimedia sessions over Internet Protocol (IP) networks. The other options presented in this question are incorrect for the following reasons: RDP (Remote Desktop Protocol) is a protocol used to connect and control another computer remotely, not specifically for voice communication. SSH (Secure Shell) is a cryptographic network protocol for operating network services securely over an unsecured network. It doesn't deal with voice transmission. And SMTP (Simple Mail Transfer Protocol) is the standard protocol for email services on a TCP/IP network. It doesn't involve voice communication.

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