This set of Wireless & Mobile Communications Multiple Choice Questions & Answers (MCQs) focuses on “Broadband Radio Access Network”.
1. When was Broadband Radio Access Network (BRAN) established?
a) 1997
b) 1996
c) 1998
d) 1990
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Explanation: Broadband Radio Access Network project was inaugurated in April 1997, considering the massive composition of Broadband radio Local Access Network (LAN) technology and also to fulfil upcoming enhancements in Multi Media applications.
2. Which of the following is not a classification of Broadband Radio Networks?
a) HIPERLAN/2
b) HIPERLAN/1
c) HIPERACCESS
d) HIPERLINK
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Explanation: The European Telecommunication Standards Institute (ETSI) has broadly classified into 3 categories of Broadband Radio Networks specifically HIPERLAN/2, HIPERACCESS and HIPERLINK.
3. HIPERACCESS provides enhanced message transmission within broadband core networks and transportable computing devices.
a) True
b) False
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Explanation: Among all categories of Broadband Radio Networks including HIPERLAN/2, HIPERACCESS and HIPERLINK, HIPERLAN/2 is ultimately responsible for engaging data transmission between broadband core networks and transportable computing devices. HIPERACCESS provides efficient transmissions to households and small business zones.
4. Which of the following does not impact requirement of Broadband Radio Access Network connections?
a) Less cost
b) Interoperable
c) Managed Quality of Service
d) Reduced bit rate
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Explanation: Broadband Radio Access Network functionality ultimately aims to improve specifications which provide effective functionality at minimum cost. Their key requirement includes reduced cost, interoperability, managed Quality of Service and enhanced bit rates.
5. Which of the following is extensively utilized in massive infrastructure applications?
a) HIPERACCESS
b) HIPERLINK
c) HIPERLAN/2
d) HIPERLAN/1
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Explanation: HIPERLINK is exclusively utilized in infrastructure technologies considering its immense speed capability. Though HIPERLAN/ 2 and HIPERACCESS comprise greater speed functionality, they are utilized in multimedia applications and residential technologies respectively.
6. BRAN (Broadband Radio Access Network) can allocate frequency bands.
a) True
b) False
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Explanation: Frequency allocation is generally implemented for its application in space services, terrestrial and astronomy services. BRAN can never allocate frequency bands standardized by multiple regulatory bodies especially considering CEPT SE 19 standards, since it is exceptionally designed for harmonized standards only.
7. Which of the following frequencies is not categorized under frequencies allocated in HIPERACCESS standard?
a) 28 GHz
b) 32 GHz
c) 48 GHz
d) 26 GHz
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Explanation: HIPERACCESS standard involves certain lower and higher frequencies like 32 GHz, 28 GHz and 26 GHz (millimeter wave frequency zones). This standard excellently utilizes TDMA/TDM access methodology in entire frequency spectrum.
8. HIPERACCESS incorporates point to multipoint topological scheme.
a) True
b) False
View Answer
Explanation: HIPERACCESS utilizes point to multipoint methodology efficiently, where the entire transmission methodology is implemented utilizing distinct varieties of one to multiple connections. This transmission method is broadly implemented in telephony and wireless internet schemes.
9. Equalizer is utilized to compensate ISI when symbol rate exceeds which of the following numerical?
a) 27 MB
b) 18 MB
c) 8 MB
d) 10 MB
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Explanation: An equalizer is effectively utilized to compensate Inter Symbol Interference (ISI) within single carrier modem, whenever symbol rate succeeds standard numerical value of 10 MB. However, similar dilemma arises even though narrow beamed antennas are utilized in this process.
10. Which of the following modulation methodologies is incorporated in HIPERACCESS standards?
a) Quadrature amplitude modulation (QAM)
b) Orthogonal Frequency-Division Multiplexing (OFDM)
c) Binary Phase Shift Keying (BPSK)
d) Gaussian Minimum Shift Keying (GMSK)
View Answer
Explanation: QAM is best suited since it provides higher distance within adjacent points, promoting noise immunity and a single demodulator system detects amplitude and phase by minimizing system complexity.
Sanfoundry Global Education & Learning Series – Wireless & Mobile Communications.
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