超星 - Unit 2 Text A: Mobile Wireless Overview

单选题

Which one isn’t the characterize wireless technologies?

A. Spectrum
B. Transmission speeds
C. Manual Service
D. Transmission mechanism

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单选题

Which one isn’t the content that integrated by IP data networking?

A. Voice
B. Currency
C. Video
Data

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单选题

The reason why Mobile Wireless Technology develop so fast is ( )?

A. People seeking ubiquitous and immediate access to information.
B. People seeking the assimilation of the internet into business practices.
C. People seeking for personal use.
D. A, B and C

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单选题

The mobile wireless technologies are differentiated by … except ( ).

A. Control of the transmitted power
B. Network topology and frequency reuse
Coding algorithms
D. Wire resource management

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单选题

Which one isn’t the network element in a typical cellular telecommunication network?

A. PSTN
BS
C. HLC
D. VCR

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单选题

These services on the below are what MSC provide except ( ).

A. Switches voice traffic from the PSTN to the PSTN if the call is a landline -to-landline call
B. Switches voice traffic from the wireless network to the PSTN if the call is a mobile-to-landline call.
C. Switches to another MSC within the wireless network if the call is a mobile-to-mobile call.
D. Provides telephony switching services and controls calls between telephone and data systems.

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单选题

These descriptions is all about BS, which one is correct ( )?

A. BS is the component of the wire network access infrastructure.
BS terminates the air interface over which the subscriber traffic is transmitted to and from a mobile station.
C. BS is called a Base Transceiver Station.
D. A, B and C

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单选题

Which one is incorrect about HLR ( )?

A. The HLR is a database that contains information about subscribers to a mobile network.
B. the HLR might contain the service profiles of visiting subscribers.
C. The HLR uses the subscriber information supplied by the itself to authenticate and register the subscriber.
D. The HLR stores “permanent” subscriber information, including the service profile, location information, etc.

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单选题

Which one is incorrect about VLR ( )?

A. The VLR is a database that is maintained by an MSC.
B. VLR store temporary information about all subscribers.
C. VLR communicates with the HLR of the roaming subscriber to request data.
D. VLR maintain information about the subscriber’s current location in the network

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单选题

Back to the Figure 1 IP Integration Phases in Mobile Wireless, which statement on the below is incorrect ( )?

A. The first phase of these infrastructures based on circuit-switched voice and data services.
B. The second quadrant depicts the implementation phase of 3G technologies.
C. In the third phase, voice and data are consolidated onto a packet-based infrastructure from the RAN or radio network control (RNC) outward.
D. The fourth phase includes 3G services plus the implementation of IP-based radio and mobility components to develop a true end-to-end, all-IP wireless network solution.

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