Ccna routing and Switching Complete Study Guide

Describe the functions of DNS and DHCP in the network.    Dynamic Host Configuration 

Protocol (DHCP) provides network configuration information (including IP addresses) to 

hosts, eliminating the need to perform the configurations manually. Domain Name Service 

(DNS) resolves hostnames—both Internet names such as 

www.lammle.com

 and device names 

such as Workstation 2—to IP addresses, eliminating the need to know the IP address of a 

device for connection purposes.

Identify what is contained in the TCP header of a connection-oriented transmission.     

The fields in the TCP header include the source port, destination port, sequence number, 

acknowledgment number, header length, a field reserved for future use, code bits, window 

size, checksum, urgent pointer, options field, and finally, the data field.