UNIT 5 PORTS, PROTOCOLS and SERVICES

11. What protocol "resolves" (converts) the network layer (IP) address into a link layer address (MAC)? _______________________________

ADDRESS RESOLUTION PROTOCOL (ARP)

8. The protocol that provides a friendly name to IP addresses on the internet is known as _______________________________.

DOMAIN NAME SYSTEM (DNS)

10. What protocol automatically assigns dynamic IP addresses to devices on a network?_______________________________

DYNAMIC HOST CONFIGURATION PROTOCOL (DHCP)

16. Which type of ports are temporary allocations and only valid for the duration of the communication session? ___________________________________

Dynamic, Private, or Ephemeral Ports

4. Which protocol is a method of transferring data files from one computer to another over a network? _______________________________

FILE TRANSFER PROTOCOL (FTP)

3. Which protocol defines how data is formatted, transmitted, and what actions web servers and browsers should take in response to various commands?____________________________

HYPERTEXT TRANSFER PROTOCOL (HTTP)

6. The protocol that is the basis for all addressing on TCP/IP networks is known as _______________________________.

INTERNET PROTOCOL (IP)

9. Which protocol uses broadcast UDP data packets to exchange routing information?_______________________________

ROUTING INFORMATION PROTOCOL (RIP)

15. What ports are assigned by IANA and are designated for specific application services requested by an application? ____________________________

Registered/User Ports

7. Which protocol is created to permit remote monitoring and management of devices and hosts? _________________________________________________

SIMPLE NETWORK MANAGEMENT PROTOCOL (SNMP)

22. This suite is a combination of protocol relationships, encompassing several different protocols, each having different purposes and needs and is the protocol suite the majority of the internet uses. _______________________________

TCP/IP Suite

23. What are the protocols mentioned that require the reliable, ordered delivery of packets that the TCP protocol offers? _______________________________________

Telnet Simple Mail Transfer Protocol (SMTP) File Transfer Protocol (FTP) Hypertext Transfer Protocol (HTTP)

20. ____________ is used when speed is the primary importance, such as real-time video conferencing, streaming audio and video, Voice Over IP (VOIP), music, and online games.

UDP (User Datagram Protocol)

13. What are the ports called that range from 0-1023 and are assigned to common protocols and services? _________________________

Well-Known Ports

18. _________________communication means the delivery of information or data is guaranteed by the protocols employed to transmit it.

connection-oriented

24. The User Datagram Protocol (UDP) is a ___________________ protocol because data is sent from one endpoint to another without prior arrangement and no guarantees that the data will reach the recipient.

connectionless

19. TCP is a connection-oriented communication protocol which provides ___________ and _____________ of data packet delivery and means delivery of information is guaranteed by the protocols transmitting TCP.

sequencing acknowledgement

5. What is the purpose of Simple Mail Transfer Protocol (SMTP)?____________________________

to transfer e-mail messages and attachments

2. What are the five layers of TCP/IP?____________________________________________________

• Application Layer (Layer 5) • Transport Layer (Layer 4) • Network Layer (Layer 3) • Data Link Layer (Layer 2) • Physical Layer (Layer 1)

21. List the header fields in a UDP header: __________________________________________________

1. Length 2. Source port 3. Destination port 4. Checksum

14. What is the range of Registered Ports? ________________________

1024 to 49151

17. What are two statuses for ports? ___________and____________

open closed

12. What is a virtual path to send and receive data from computers and used to communicate between two different applications? ___________________________________________

port

1. A __________ is a standard set of rules that allow electronic devices to communicate with each other.

protocol