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What is the primary objective of firewall?
The primary objective of a firewall is to protect the computer and its network from unwanted intrusions. These intrusions can include viruses and hackers.
What does the term firewall means?
A firewall is a security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. It acts as a barrier between a trusted internal network and untrusted external networks, such as the internet, to prevent unauthorized access and threats. Firewalls can be implemented as hardware devices, software applications, or a combination of both. Their primary purpose is to protect systems and data from malicious attacks and unauthorized access.
What is the primary function of the Committee on Finance?
(Work with issues regarding taxes and Social Security.)
Which of the following is NOT one of the primary concerns for Congress regarding information system security?
Reduce lost work time due to security violations
What is a function of NAT when it is configured on a firewall appliance?
NAT stands for Network Address Translation. NAT's primary role is to configure IP addresses. When NAT is configured to a firewall, it reconfigures the addresses of certain IP packets as they pass through the firewall or through a router.
What is a function of NAT when it is configured on a firewall appliances?
NAT stands for Network Address Translation. NAT's primary role is to configure IP addresses. When NAT is configured to a firewall, it reconfigures the addresses of certain IP packets as they pass through the firewall or through a router.
What is a firewall used for?
A firewall is usually placed in front of a group of machines and its primary function is to control communication from and to this group of machines. Communication between two machines over the Internet is a stream of packets (datagrams) send in both directions. The firewall examines all packets that is about to be routed through the machine and, based on a set of rules, determines if the packet is allowed to pass through the machine or not. This functionality is often referred as a packet filter. The secondary function of a firewall is to modify the packets passing through the firewall. This is called Network address translation (NAT), as the modifications usually applies to either sender or receiver information contained in the packets. NAT can for example be used to allow machines without a public addressable Internet protocol (IP) number, to access the Internet through a firewall, by using the IP-number of the firewall as the sender identification. This is also called ip masquerading, as it disguises the address of the machines behind the firewall. www.goldstardailynews.com
What is one advantage of a two-firewall configuration that is not provided by a single-firewall configuration?
On most networks, the firewall is a single point of failure. When the firewall goes down, inside users are unable to surf the web, the website goes dead to the outside world, and email grinds to a halt. by placing two firewalls in parallel. All traffic passes through the primary firewall; when it fails the backup firewall assumes the identity of the primary firewall, and continues where it left off. Existing connections are preserved, and network traffic continues as if nothing had happened.
What is the purpose of a sniffer?
A sniffer, or network packet analyzer, is a tool used to capture and analyze data packets traveling over a network. Its primary purpose is to monitor network traffic, diagnose issues, and troubleshoot connectivity problems. Additionally, sniffers can be used for security analysis to detect unauthorized access or malicious activities on the network. They are commonly employed by network administrators and cybersecurity professionals to ensure optimal performance and security.
What is the primary objective of normal security operations?
What is the primary objective of normal security operations
What is an out of band modem?
An out-of-band modem is a type of modem that operates independently of the primary data network, allowing remote management and monitoring of network devices. It typically connects to a separate communication channel, such as a dedicated phone line or cellular network, enabling administrators to access and control network equipment even when the primary network is down. This is particularly useful for troubleshooting and maintaining network reliability. Out-of-band management enhances security by providing a dedicated path for management traffic, separate from regular data traffic.
What are the two ways to logically segment a network?
The two primary ways to logically segment a network are through Virtual Local Area Networks (VLANs) and subnetting. VLANs allow for the creation of distinct broadcast domains within a single physical network, enabling better traffic management and security. Subnetting involves dividing a larger IP network into smaller, manageable sub-networks, which enhances performance and improves organization by isolating network traffic. Together, these methods help in optimizing network efficiency and security.
