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Network upgrades have been completed and the WINS server was shutdown. It was decided
that NetBIOS network traffic wil no longer be permitted. Which of the following wil accomplish
this objective?

A. Content filtering
B. Port filtering
C. MAC filtering
D. IP filtering
Answer(s): B
TCP/IP port filtering is the practice of selectively enabling or disabling Transmission Control
Protocol (TCP) ports and User Datagram Protocol (UDP) ports on computers or network
devices. When used in conjunction with other security practices, such as deploying firewall
software at your Internet access point, applying port filters to intranet and Internet servers
insulates those servers from many TCP/IP-based security attacks, including internal attacks by
malicious users.

Companies trying to cut down on constant documentation of IP addresses could use which of
the following?

A. Longer lease times
B. More reservations
C. Larger scopes
D. Dynamic IP addressing
Answer(s): D
In Dynamic IP addressing all the hosts with private ip address will be patted to the same ip so
the administrator will not have to keep track of each and every host with private ip mapped to a
static public ip address.

Which of the following DHCP properties defines the size of the pool of available IP addresses?

A. Options
B. Scope
C. Leases
D. Reservations
Answer(s): B
A range of IP addresses that are available to be leased to DHCP clients by the DHCP Server

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