1) What is a protocol? a) is a group of protocols focusing one one stage of the data transmission. b) is a set of rules required for two computers to communicate over a network. c) are used to access a webpage via a web-browser d) are used to retrieve emails from a mail server 2) What are HTTP and HTTPS protocols? a) is a group of protocols focusing one one stage of the data transmission. b) is a set of rules required for two computers to communicate over a network. c) are used to access a webpage via a web-browser d) are used to retrieve emails from a mail server 3) Which protocol is used to send e-mails between mail servers? a) HTTP b) SMTP c) IMAP d) FTP 4) Which protocol are used to access a webpage via a web-browser? a) HTTP/HTTPS b) SMTP c) IMAP d) FTP 5) Which protocol are used to are used to retrieve emails from a mail server a) HTTP/HTTPS b) SMTP c) IMAP/POP3 d) FTP 6) On this layer each packet is assigned the IP address of the source (sending computer) and of its destination (receiving computer) so that the packet can be routed through the network/Internet. a) Internet b) Transport c) Link d) Application 7) The aim of this layer is to convert the data packets into an electric current going through a copper cable (Ethernet, Coax, Phone line, etc.), a) Internet b) Transport c) Link d) Application

Network protocols and layers revision

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