COMPUTER THREATS SECURITY
WHAT IS A FIREWALL IN NETWORK SECURITY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Stateful
|
|
|
Stateless
|
|
|
Filters by session
|
|
|
Filters by URL
|
|
|
Filters IP addresses, but not ports
|
Detailed explanation-1: -Which of the following are characteristics of a packet filtering firewall? (Select two.) A packet filtering firewall makes decisions about which network traffic to allow by examining information in the IP packet header such as source and destination addresses, ports, and service protocols.
Detailed explanation-2: -Packet-filtering firewalls make processing decisions based on network addresses, ports, or protocols. Packet-filtering firewalls are very fast because there is not much logic going behind the decisions they make. They do not do any internal inspection of the traffic. They also do not store any state information.
Detailed explanation-3: -A packet filtering firewall is the most basic type of firewall that controls data flow to and from a network. It is a network security solution that allows network packets to move across between networks and controls their flow using a set of user-defined rules, IP addresses, ports, and protocols.
Detailed explanation-4: -Solutions for Which of the following is / are the types of firewall?a)Packet Filtering Firewallb)Dual Homed Gateway Firewallc)Screen Host Firewalld)All of the mentionedCorrect answer is option ‘A’.