Network Protocols 2024 Test Questions with Correct Answers.docx

Network Protocols 2024 Test Questions with Correct A What is a protocol? - Answer-A protocol is a standard for how to act or communicate. What do protocols do? - Answer-Protocols define the rules and regulations that everyone follows in order to communicate T/F: No matter where you are or what kind of computer you're using, you can communicate with other computers over a network if you use the same network protocols. - Answer-True What term defines a group of protocols that are used together? - Answer-A protocol suite What is the most commonly used protocol suite used today? - Answer-Transmission Control Protocol/Internet Protocol (TCP/IP) Because they control transmissions between computers on a network (including the Internet) What are the two most common transport protocols? - Answer-Transmission Control Protocol (TCP) User Datagram Protocol (UDP) T/F: TCP is known as a connectionless protocol. - Answer-False TCP is known as a connection-oriented protocol. What happens to information when it is transported using TCP? - Answer-The computer sending the information ensure the receiving computer receives the information with no errors This is done by requiring the receiving computer to send an acknowledgement of each packet received from sender. What happens to information when it is transported using UDP? - Answer-UDP is a connectionless protocol; it will transmit the information regardless of whether transmission errors occur. Transfers data very quickly What transport protocol would e-mail servers and file servers use? - Answer-TCP What transport protocol would audio and video streaming services use? - Answer-UDP T/F: TCP and UDP form the foundation of the TCP/IP suite. - Answer-True All other protocols in the suite work in conjunction with one of these two protocols. What is the most common protocol that most internet users are familiar with? - Answer- Hypertext Transfer Protocol (HTTP) How is HTTP used by an Internet Browser and a website server? - Answer-Internet browsers request information from website servers and websites return information to the browser and display the information on the screen. How HTTP differ from HTTPS? - Answer-Hypertext Transfer Protocol-Secure (HTTPS) functions the same as HTTP but with an added security protocol. Which transport protocol does HTTP work in conjunction with, TCP or UDP? - Answer- TCP Which transport protocol does HTTPS work in conjunction with, TCP or UDP? - Answer- TCP What two security protocols might HTTPS use, and what do they do? - Answer-Secure Socket Layer (SSL) Transport Layer Security (TLS) While they work differently, both protect data from wire tapping and other attacks by encrypting data while it travels between the clients and the server. T/F: TLS can be thought of as a more advanced version of SSL. - Answer-True Which transport protocol does SSL work in conjunction with, TCP or UDP? - Answer- TCP Which transport protocol does TLS work in conjunction with, TCP or UDP? - Answer- TCP What four protocol are used to transfer files across a network - Answer-File Transfer Protocol (FTP) Trivial File Transfer Protocol (TFTP) Secure File Transfer Protocol (SFTP) Secure Copy Protocol (SCP) Which transport protocol does FTP work in conjunction with, TCP or UDP? - Answer- TCP Which transport protocol does TFTP work in conjunction with, TCP or UDP? - Answer- UDP Which transport protocol does SFTP work in conjunction with, TCP or UDP? - Answer- TCP Which transport protocol does SCP work in conjunction with, TCP or UDP? - Answer- TCP What are the three common e-mail protocols? - Answer-Simple Mail Transfer Protocol (SMTP) Post Office Protocol Version 3 (POP3) Internet Message Access Protocol (IMAP) What e-mail protocol is used to send mail between servers? - Answer-SMTP T/F: you can send emails to addresses that are NOT in your domain, as long as both email services are using SMTP. - Answer-True Which e-mail protocol downloads messages from an e-mail server and saves them on the client's computer? - Answer-POP3 Which e-mail protocol allows a user to access their messages from multiple devices? - Answer-IMAP What is the advantage to using POP3? - Answer-After downloading your messages from the server, you will be able to access your messages when you are offline. What is the advantage to using IMAP? - Answer-Messages can be stored on a server and accessible, even if a device fails; no data is lost. What network services does Dynamic Host Configuration Protocol (DHCP) provide? - Answer-Allows devices to receive configuration information from a central server. With DHCP you configure a central server, and as a device connect to the network they receive addressing and other configuration information from it. What network services does Domain Name System (DNS) provide? - Answer-Allows user to use hostnames to identify computes; instead of using an IP address, you can use a logical name. What network services does Network Time Protocol (NTP) provide? - Answer-Allows devices to synchronize their clocks through a network. What network services does Lightweight Directory Access Protocol (LDAP) provide? - Answer-Allows users to access directory service information for users on their network, such as name, phone number, and email address. Which transport protocol does DHCP work in conjunction with, TCP or UDP? - Answer- UDP Which transport protocol can DNS work in conjunction with, TCP or UDP? - Answer- BOTH! TCP & UDP Which transport protocol does NTP work in conjunction with, TCP or UDP? - Answer- UDP Which transport protocol can LDAP work in conjunction with, TCP or UDP? - Answer- BOTH! TCP & UDP