Question
What is Answers?
1- which one is not digtal encoding? A- Dipolar-AMI 0 Ampltude shit Keyin C-NRZ- D- Manchester E- Pseudotemary 2- Which one is not related to error control procassn ALost frame B-Acknowledgment C Damaged trame D Busy condition E- Timeout 3-Which one is not correct for shielding in cables A- Reduces eflects of electromagnebc Selds around B- Increases tranmission distance C- LessINEXT) loss D- Improves the pertormance of he cable E-None 4-Which one is not done in error connection7 Adderatying lost trame B-Detecting errors in data and comecting them C-Detecting errors in data but conecting thenm D-Identiying erroe free data E-Unabile to desect errces in data 5-Following signal description belongs to which encoding? Acosizn(ic idjt), binary 3 Acosanitc-tdy), binary A- BFSK B- BPSK C- MFSK D- ASK E-Qesk 6-4KHz voice signal is encoded by uning PCM. I data is 48 kips which one is correce A-27 7- Which one is not the teature of Manchester encoding? A- Synchronization B-Having three derent signal levels C- Not having DC component D-Error detection E-Having higher modulation rate 8- Which one is wrong? A- Data rate increses with increase bandwith B-Lower the data rate, less error rate C- By increasing the number of signal deta rate can be increased D-B85Z and HDB3 increases data rate E-Increasing modulation rate does not data rate 9- Which one affects radio wave tranmission? A- Signal loss by distance B- Reflection of signals from obstacles C Absorption of signals by water vapour D-Bending of signals E-All
Explanation / Answer
my answer:
1) A, 2B,3C,4A,5D,7C,8C,9A
