$94-$ A file contains $2$ million bytes. How long does it take to

download this file using a $56$ Kbps channel

a$.289$ sec

b$.334$ sec

c$.222$ sec

d$.278$ sec

e$.112$ sec

$95-$ Mark the forward Error Correction $($FER$)$ schemes. $($Choose

all that apply$)$

a$.$ Chunk interleaving

b$.$ High resolution packets

c$.$ Hamming distance

d$.$ Redundant packets $,$ e$.$ XOR

$96-$ In CRC$,$ if the dataword is $5$ bits and codeword is $8$ bits, how

many $0$ s need to be added to the dataword to make the dividend?

What is the size of the remainder? What is the size of the divisor?

a$.3,3,4$

b$.3,4,2$

c$.4,3,4$

d$.3,3,3$

$97-$ To make the shape of the analog signal looks more like a

digital signal, we added more harmonics till the seventh harmonic

$($included$).$ That means we increased the bandwidth to

a$.7$ N

b$.7\frac{N}{2}$

c$.14$ N

d$.21$ N

e$.6$ N