Protocols

Question 1

DNS

Answer 1

Domain Name System- Translates domain names into IP addresses. (Application Layer)

Question 2

DHCP

Answer 2

Dynamic Host Configuration Protocol- dynamically assigns an IP address and other network configuration parameters to each device on the network, so they can communicate with other IP networks.

(Application Layer)

Question 3

SMTP

Answer 3

Simple Mail Transfer Protocol- Enables clients to send email to a mail server and enables servers to send email to other servers. (Application Layer)

Question 4

POP3

Answer 4

Post Office Protocol version 3. Enables clients to retrieve email from a mail server and download the email to the client’s local mail application. (Application Layer)

Question 5

IMAP

Answer 5

Internet Message Access Protocol- Enables clients to access email stored on a mail server as well as maintaining email on the server. (Application Layer)

Question 6

FTP

Answer 6

File Transfer Protocol- Sets the rules that enable a user on one host to access and transfer files to and from another host over a network. FTP is a reliable, connection-oriented, and acknowledged file (application layer)

Question 7

SFTP

Answer 7

SSH File Transfer Protocol. As an extension to Secure Shell (SSH) protocol, can be used to establish a secure file transfer session in which the file transfer is encrypted. SSH is a method for secure remote login that is typically used for accessing the command line of a device. (Application layer)

Question 8

TFTP

Answer 8

Trivial File Transfer Protocol. A simple, connectionless file transfer protocol with best-effort, unacknowledged file delivery. It uses less overhead than FTP. (Application layer)

Question 9

HTTP

Answer 9

Hypertext Transfer Protocol. A set of rules for exchanging text, graphic images, sound, video, and other multimedia files on the World Wide Web. (Application Layer)

Question 10

HTTPS

Answer 10

HTTP Secure. A secure form of HTTP that encrypts the data that is exchanged over the World Wide Web.(Application Layer)

Question 11

TCP

Answer 11

Transmission Control Protocol. Enables reliable communication between processes running on separate hosts and provides reliable, acknowledged transmissions that confirm successful delivery. (Transport Layer)

Question 12

UDP

Answer 12

User Datagram Protocol. Enables a process running on one host to send packets to a process running on another host. However, UDP does not confirm successful datagram transmission.

Question 13

IPv4

Answer 13

Internet Protocol version 4. Receives message segments from the transport layer, packages messages into packets, and addresses packets for end-to-end delivery over a network. IPv4 uses a 32-bit address. (Internet Layer)

Question 14

IPv6

Answer 14

Internet Protocol version 6 Receives message segments from the transport layer, packages messages into packets, and addresses packets for end-to-end delivery over a network. IPv6 uses a 128-bit address.

Question 15

NAT

Answer 15

Network Address Translation. Translates IPv4 addresses from a private network into globally unique public IPv4 addresses. (Internet Layer)

Question 16

ARP

Answer 16

Address Resolution Protocol. Provides dynamic address mapping between an IPv4 address and a hardware address. (Network Access Layer)