We typically troubleshoot networking issues using one of the two networking models: osi or tcp/ip.
a potential layer 1 problem can be broken strands of copper in a cable, either preventing a flow through a circuit or touching each other and thus resulting in lower resistance.
what type of layer 1 problem is this?

Layer 1 problem is that it may have bad connectors and bad cables.

Step-by-step explanation:

When in the first layer of TCP/IP problem has been occur that's mean there is any connection who might be fail and their may be some poor connection of cables.Cables can be bad and broken which can not permit the current to flow.

f is the midpoint of

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.