Which one of the following phrasers best describes flux density?
Options: The concentration of lines of magnetic force, The rate of change of the number of lines of magnetic force, The opposition to a build-up of magnetic fields, The force that maintains lines of force
If delays are recorded as 10 bit numbers in a 50 router network, and delay vectors are exchanged twice a second, how much bandwidth per fill duplex line is occupied by the distributed routing algorithm?
The main difference between synchronous and asynchronous transmission is
Options: the clocking is derived from the data in synchronous transmission, the clocking is mixed with the data in asynchronous transmission, the pulse height is different., the bandwidth required is different
Which one of the following principles best describes the basic operation of a generator?
Options: Like magnetic poles repel; unlike poles attract, Current is induced in a conductor that is moving through a magnetic field, Like magnetic poles attract; unlike poles repel, Current flowing through a conductor generates a magnetic field
Options: a . bit - bytes - fields - record - file - database b . bit - bytes - record - field - file - database c . bytes - bit- field - record - file - database d . bytes -bit - record - field - file - database