Useful tips for everyday
How can I track my food expiration date? Fridge Pal (free) is a new app that promises to keep track of food so you use…
Does Dragonfly migrate? Each spring and fall, large dragonflies called green darners fly across North America. A green darner can travel as far as 900…
What is the difference between shaping and policing? Traffic shaping can be used to control outbound traffic only. It also does queuing of packets….Difference between…
What is leaf and spine topology? A spine-leaf architecture is data center network topology that consists of two switching layers—a spine and leaf. The leaf…
Is a DHCP request a broadcast? Upon accepting the DHCP Request message (for IP address renewal) received from the client, the DHCP server also unicasts,…
How far can you run a fiber optic cable? Modern fiber optic cables can carry a signal quite a distance — perhaps 60 miles (100…
What are three advantages for designing a network with multi area OSPF? Advantages of Multiarea OSPF: Smaller routing tables – Fewer routing table entries as…
What is MTU black hole? A black-hole hop is a device that fails to send the “fragmentation needed and DF set” message, which will confuse…
What does it mean to be grandfathered in when a new law is made? Black’s Law Dictionary defines “grandfather clause” as “an exception to a…
Can the forwarding table of a switch contain multiple entries for the same MAC address? Single Forwarding Database Operation This is not a problem for…