Put $($T$)$rue or $($F$)$alse in the box ahead of each of the following statements $($read statements very carefully$)$

a$)$ A collision that occurs when two computers access the transmission medium at the same time is

an avoidable collision.

b$)$ Because the transmission in the ALOHA algorithm occurs at any time instant compared to the

slotted ALOHA, the performance of the ALOHA is better than that of the slotted ALOHA.

c$)$ The $16$ bits of the checksum in the IP header are used to check for errors in the data part of the

packet.

d$)$ In the OSI $7-$layer reference model, the layer responsible for segmenting a long message and

recombining the segments of a long message is the transport layer.

e$)$ In the Stop$-$and$-$Wait ARQ, no sequence number in the ACKs is required because only one frame

is transmitted at a time.

f$)$ The relationship between bit error rate and frame error rate is linear.

g$)$ The Nyquist Signaling theorem states that you can transmit a maximum of $2$W bits$/$s in a channel

with bandwidth W Hz$.$

h$)$ The Selective Repeat ARQ has higher efficiency than the Stop$-$and$-$Wait and lower efficiency

than the Go$-$Back N ARQ.

i$)$ The constellation points of any PSK modulation always fall on a circle.

j$)$ The process of sampling converts an analog signal to a digital signal.

k$)$ The Shannon channel capacity theorem states that transmitting data at a higher bit rate than the

capacity of a channel causes uncontrollable amount of errors.

l$)$ p$-$persistent carrier sense multiple access $($CSMA$)$ algorithm is a combination of both $1-$persistent

and non$-$persistent CSMA algorithms.