Which of the following are the reasons for implementing firewall in any network?

Question

Options

• ACreate a choke point
• BLog Internet activity
• CLog system activity
• DLimit access control
• EImplementing security policy
• FLimit network host exposure

• A
  78% (36)
• C
  7% (3)
• D
  15% (7)

Explanation

A firewall is a part of a computer system or network that is designed to block unauthorized access while permitting authorized communications. It is a device or set of devices configured to permit, deny, encrypt, decrypt, or proxy all computer traffic between different security domains based upon a set of rules and other criteria. The four important roles of a firewall are as follows: 1. Implement security policy: A firewall is a first step in implementing security policies of an organization. Different policies are directly implemented at the firewall. A firewall can also work with network routers to implement Types-Of-Service (ToS) policies. 2. Creating a choke point: A firewall can create a choke point between a private network of an organization and a public network. With the help of a choke point the firewall devices can monitor, filter, and verify all inbound and outbound traffic. 3. Logging Internet activity: A firewall also enforces logging of the errors and faults. It also provides alarming mechanism to the network. 4. Limiting network host exposure: A firewall can create a perimeter around the network to protect it from the Internet. It increases the security by hiding internal information.

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