A Level Protocols

Which protocol is used for sending web pages over the internet?

• HTTPS / HTTP

• HTPS

• FTP

• SMTP

Answer explanation

Hypertext Transfer Protocol (HTTP) is a networking protocol behind the World Wide Web. It allows for users on the web to exchange information found on web pages.

Which protocol is used to send emails?

• HTTPS / HTTP

• HTPS

• FTP

• SMTP

Answer explanation

SMTP (Simple Mail Transfer Protocol) is used to send emails between mail servers. FTP is for file transfers, HTTP is for web content, and SNMP is for managing network devices.

What layer does the IP protocol belong to in the TCP/IP model?

• Network

• Application

• Transport

• Data Link

Answer explanation

The Network is part of the Internet Layer, responsible for addressing and routing packets across networks.

Which protocol ensures reliable transmission of data?

• TCP

• IP

• Ethernet

• Data Link

Answer explanation

TCP (Transmission Control Protocol) provides reliable, ordered, and error-checked delivery of data over the network.rks.

Which protocol is commonly used for file transfers?

• TCP

• IP

• Ethernet

• FTP

Answer explanation

FTP (File Transfer Protocol) is used to upload and download files between computers on a network.

DNS is responsible for:

• Sending files

• Assigning IP addresses

• Resolving domain names to IPs

• Delivering emails

Answer explanation

DNS (Domain Name System) translates human-friendly domain names (like google.com) into IP addresses the computer can understand.

Which protocol provides connectionless communication?

• TCP

• UDP

• SMTP

• FTP

Answer explanation

UDP (User Datagram Protocol) sends data without establishing a connection, which is faster but less reliable than TCP.

What layer does the HTTP protocol belong to?

• Application

• Transport

• Network

• Data Link

Answer explanation

HTTP (Hypertext Transfer Protocol) operates at the Application Layer and is used to access and transfer web content.

Which protocol is responsible for retrieving emails from a server?

• SMTP

• POP3

• DHCP

• FTP

Answer explanation

POP3 (Post Office Protocol version 3) is used by email clients to retrieve emails from a server.

What is the main function of the Transport Layer in the TCP/IP model?

• Routing packets

• Sending email

• Providing end-to-end communication

• Resolving domain names

Answer explanation

The Transport Layer ensures complete data transfer between two devices using TCP or UDP.