The incoming data needs to be checked and processed before it can be used. The rate of processing is always slower than the rate of transmission. So each receiving device has a block ofmemorycalled buffer which is reserved for storing the incoming data until it is processed. If the buffer ...
The amount of time a packet sits in a queue is referred to as queuing delay and the number of packets waiting to be processed is referred to as a buffer. As the number of packets increase, so too does the length of the buffer, which consecutively contributes to network latency. There ar...
A DMZ configuration allows for additional security to protect against external attacks in a Local Area Network (LAN). The term, ‘DMZ’, has been borrowed from the geographic buffer zone that was set up at the end of the Korean War between North Korea and South Korea. But, what is DMZ ...
In computer networking, networking latency is the round-trip time (RTT) for a packet of data to travel to reach and return from a destination. Latency is typically measured in milliseconds. Ideally, the goal is approaching zero latency as closely as possible. And although because of how data ...
While not always a security issue, buffer underflows cancreate exploitable vulnerabilitiesand be used to cause a denial-of-service attack, result in data loss and enable remote code execution. A buffer underflow is the opposite of abuffer overflow, which occurs when the amount of data fed into...
A home office switch tends to be a lot smaller. They may offer as few as 4 ports, plus one for a connection to a router. Broadcast Storms Generally, a mesh of connectivity between devices is desirable in computer networking. A mesh topology offers redundancy in case of link or device fai...
A screen buffer is the part of a computer's physical memory that is used to hold information as it moves from one location in the...
Networking What Is a Network Driver? Hardware What Are Pixels? Security What Is Bluesnarfing? Hardware What Can I Do about a Lost BIOS Password? Related Articles What Is a Buffer Overflow? What Is a Write Buffer? What is a Stack Overflow?
What is a buffer overflow? A buffer overflow occurs when a program or process attempts to write more data to a fixed-length block of memory, orbuffer, than the buffer is allocated to hold. Buffers contain a defined amount of data; any extra data will overwrite data values in memory addres...
A DMZ network provides a buffer between the internet and an organization’s private network. The DMZ is isolated by a security gateway, such as a firewall, that filters traffic between the DMZ and a LAN. The default DMZ server is protected by another security gateway that filters traffic com...