Interview_Question

#Interview_Question
#What are the reasons for #call_drop؟؟!!
call drop occurs when
- Slips occur in media.
- There is some antenna tilting.
- Phone goes out of range.
- Electric and mechanic tilts occur.
- Signal interference occurs.
-Signal strength goes below the minimum acceptable single to make call.
-interference due the bad environmental conditions.
-because of improper hard handoff.

#QUIZ
Wi-Fi is based on what standards?
A.  IEEE 802.11
B.  IEEE 804.12
C.  IEEE 208.11

2.3G newtworks can support data transfer of up to 50Mbs/s
A.  True
B.  False

3.  The bandwidth of a WCDMA signal is
A.  5 MHz
B.  1 MHz
C.  15 MHz
D.  10 MHz

#هندسة_الاتصالات