Application Layer Quiz

What is the purpose of the Domain Name System (DNS)?

• To transfer files between computers

• To store and exchange email messages

• To enable real-time text messaging

• To locate servers by associating a name with an IP address

What is the port number used for HTTP requests?

• 53

• 20

• 110

• 80

Which protocol is used for transferring files between computers?

• IMAP

• POP3

• SMTP

• FTP

What protocol is commonly used for sending email messages from a client to a server?

• SMTP

• DNS

• IMAP

• POP3

What is the purpose of text messaging software?

• To transfer files between computers

• To send and receive instant messages

• To make internet phone calls

• To access web services

Which transport protocol provides reliable delivery of data packets?

• IP

• HTTP

• TCP

• UDP

Which port number is commonly used for secure web services?

• 20

• 53

• 80

• 443

What is the purpose of the DNS server?

• To request the IP address of a specific server

• To store and exchange email messages

• To format web pages and use graphics and fonts

• To manage files remotely

Which protocol is used to send messages between email servers?

• SMTP

• FTP

• POP3

• IMAP

What is the purpose of Internet Protocol (IP)?

• To keep track of specific conversations between a client and server

• To identify end hosts and route packets to destination hosts

• To locate servers by associating a name with an IP address

• To provide reliable delivery of data packets