Sequence Number in a TCP header is used for (list all that apply)
a. acknowledgements
b. upper layer information
c. reordering of the octets received
d. protocol dependent information
e. rejecting the duplicate octates
Give some private network addresses examples?
Which command causes in.named to take a snapshot of its in-memory cached data.
List 3 types of email addresses (for the mailer):
A subnet's mask is 255.255.255.224. How many nodes can this subnet have?
Host ----router ----server Class B network. host's IP : ...82.2 , Mask: 255.255.240.0 router's left IP-address is ...64.1 router's right IP-address is ...32.1. Why can the host not access the server ?
what are fsmo roles
Describe point to point link?
True or False: The purpose of each layer of the OSI is to provide services to the next lower level?
IEEE subdivided the datalink layer to provide for environments that need connectionless or connection- oriented services. What are the two layers called?
What are entries in the DHCP network database ?
Define firewalls?
Can a user without superuser previlege run "ifconfig hme0" ?