Why when you ping a host in a LAN the TTL value is 128 but if you ping a host in another network the TTL value decreases from 255 to 254 my question is why the TTL value is 128?
The TTL or Time To Live is a value used to make packets eventually die, so they don't end up in infinite loops, clogging the network over time. Certain network devices decrement this value (routers mainly) by one as they process it. When the TTL reaches zero, the packet is discarded. Each Operating System implements its TCP/IP stack differently and starts packets off with the TTL of their choosing (the default TTL of the stack can be changed, but rarely is). Windows is 128 Linux is 64 Cisco is 256 So if your TTL is around 128 (remember the TTL gets decremented by certain devices) you are PROBABLY pinging a windows box. If it's near 256, probably Cisco etc. You can't rely on this information because other network devices can rewrite the TTL in a packet, but it's a decent indication of the OS on the other end, especially if it's a box you own and you aren't going through firewalls etc.
If the voltage applied across the resistor remains constant, then as the resistance of the resistor decreases, the current through it will increase. Consider Ohm's Law: E = IR In this formula, in order for 'E' to remain constant as 'R' decreases, 'I' must increase. Another form of Ohm's Law: I = E/R If 'E' remains constant, then the value of the fraction increases as its denominator 'R' decreases.
If one value of a variable increases as another value of a different variable decreases in a mathematical equation, they are said to be inversely proportional or vary inversely. For example, the strength of the force of gravity decreases as the square of the interacting distance increases, so the strength of gravity is inversely proportional to the square of the distance, or strength âˆ 1/distance2.
If two variables have a direct relationship what happens to the value of one as the value of the other changes?
I think you mean "gateway." The default gateway of any network is the device that connects the network to another network (for example the router in your home connects your Local Area Network (LAN) to the Internet (a Wide Area Network). The IP address is typically signified by a 1 as the last octet (e.g. for a typical home network it would be 192.168.0.1) while all other devices on the network will have a 100+…
LAN(local area network) WAN(wide area network) MAN(metro po piton area network) SAN( strong area network) CAN(campus area network) VAN(value added network) LAN(local area network) WAN(wide area network) MAN(metro po piton area network) SAN( strong area network) CAN(campus area network) VAN(value added network)
9.8 m/s2 ---------------------- Yes this is the average value of acceleration due to gravity near by the surface of the earth. As we go higher and higher level this g value decreases and becomes almost negligible. Same way as we go deeper and deeper the g value decreases and at the centre of the earth its value becomes zero.
The price of the bond decreases; the inflation premium would increase the market interest rate, which in bond valuation is located in the denominator, and the coupon payment rate is located in the numerator. When calculating the NPV of future coupon payments, as the denominator or market interest rate + inflation premium increases, the Net Present Value of future coupon payments decreases and the overall value of the bond decreases as well. The price of…
Value Chain The series of departments that carry out value-creating activities to design, produce, market, deliver, and support a firm's products. Value Delivery Network The network made up of the company, suppliers, distributors, and ultimately customers who "partner" with each other to improve the performance of the entire system.