network+ I discussion forum Module 1
network+ I discussion forum Module 1
Harrison Valetski
October 16,2015
Discuss some of the global characteristics of the TCP/IP protocol and the advantages of using this protocol.
There are many other protocols in use today, a list of some of them are below. Choose two and discuss their Purpose and Function
https://technet.microsoft.com/en-us/library/cc758357%28v=ws.10%29.aspx
ICMP Provides error checking and reporting functionality. Works at the Internet layer of the TCP/IP suite. Provides background services that can be used to provide information to an administrator and to request a “quench” of the information flow in the network. Typically used as part of the ping tool to test network connectivity. Can send back an echo reply when an echo request message is sent to it. Can also send back a message such as “Destination Host Unreachable” and “Time Exceeded” when the connection to the pinged host is not possible
TFTP Provides for transferring files within a network. Connectionless protocol that works at the Application layer. Uses UDP for low overhead without a guarantee of delivery. Typically used for simple file transfers such as those between a computer and a router or a switch for management purposes.
IGMP provides a standard for multicasting on an intranet. Allows a host to inform its local router, using Host Membership. Reports that it wants to receive messages addressed to a specific multicast group.
SSH Provides the capability to log onto a computer remotely, execute commands, and move files in a secure and encrypted environment. Works at the Application layer of the TCP/IP suite. Provides for a secure logon and a secure environment in which to execute commands. Typically used to manage servers from clients and to move sensitive files from one server to another within the same network or between networks.
ARP Resolves IP addresses to MAC addresses. Works at the Internet layer of the TCP/IP suite. Includes a cache that is checked first. If the entry is not found in the cache, then ARP uses a broadcast to determine the MAC address of the client. Typically used by the system as a background service but also includes a utility that can be used for troubleshooting.
NTP Synchronizes time between computers in a network. Works at the Application layer of TCP/IP suite. Can synchronize time between clients and servers.Used to synchronize time to assure that authentication protocols such as Kerberos work properly and that applications that require collaboration operate properly.
Harrison Valetski
October 16,2015
Discuss some of the global characteristics of the TCP/IP protocol and the advantages of using this protocol.
There are many other protocols in use today, a list of some of them are below. Choose two and discuss their Purpose and Function
| DHCP | HTTPS | SSH | FTP |
| TFTP | HTTP | POP3 | UDP |
| DNS | ARP | NTP | SMTP |
| ICMP | IMAP4 | Telnet | IGMP |
https://technet.microsoft.com/en-us/library/cc758357%28v=ws.10%29.aspx
ICMP Provides error checking and reporting functionality. Works at the Internet layer of the TCP/IP suite. Provides background services that can be used to provide information to an administrator and to request a “quench” of the information flow in the network. Typically used as part of the ping tool to test network connectivity. Can send back an echo reply when an echo request message is sent to it. Can also send back a message such as “Destination Host Unreachable” and “Time Exceeded” when the connection to the pinged host is not possible
TFTP Provides for transferring files within a network. Connectionless protocol that works at the Application layer. Uses UDP for low overhead without a guarantee of delivery. Typically used for simple file transfers such as those between a computer and a router or a switch for management purposes.
IGMP provides a standard for multicasting on an intranet. Allows a host to inform its local router, using Host Membership. Reports that it wants to receive messages addressed to a specific multicast group.
SSH Provides the capability to log onto a computer remotely, execute commands, and move files in a secure and encrypted environment. Works at the Application layer of the TCP/IP suite. Provides for a secure logon and a secure environment in which to execute commands. Typically used to manage servers from clients and to move sensitive files from one server to another within the same network or between networks.
ARP Resolves IP addresses to MAC addresses. Works at the Internet layer of the TCP/IP suite. Includes a cache that is checked first. If the entry is not found in the cache, then ARP uses a broadcast to determine the MAC address of the client. Typically used by the system as a background service but also includes a utility that can be used for troubleshooting.
NTP Synchronizes time between computers in a network. Works at the Application layer of TCP/IP suite. Can synchronize time between clients and servers.Used to synchronize time to assure that authentication protocols such as Kerberos work properly and that applications that require collaboration operate properly.