Browse Definitions:
Quiz

Quiz: Cell phone tech

 

Quiz: Cell phone tech

1. This is the science of exchanging information wirelessly over significant distances.
a. radiophonistics< /br> b. telecommunications
c. Marconiology
Answer

2. One of the basic challenges in cell phone technology was figuring out how to allow several callers to send information simultaneously over a single communication channel. What is this concept called?
a. synchronous signaling
b. multiplexing
c. communication concurrence
Answer

3. When did first generation (1G) cellular services become commercially available?
a. late 1960s
b. mid 1970s
c. early 1980s
Answer

4. In the early 1990s in North America, a second generation (2G) of cellular services began to evolve when mobile carriers like Verizon deployed CDMA to multiplex up to 64 calls per channel. What does CDMA stand for?
a. Code-Division Multiple Access
b. Channel-Division Managed Architecture
Answer

5. Around the same time, other mobile carriers like AT&T adopted a competing standard for multiplexing called GSM. What does GSM stand for?
a. Global System for Mobile
b. Gateway Session Modulation
Answer

6. Which Danish mathematician originally conceived the theory of traffic engineering, a discipline that attempts to make sure the number of failed calls is as close to zero as possible?
a. Agner Erlang
b. Ole Worm
Answer

7. To prevent a caller from thinking his connection has been lost during a long period of silence in a conversation, carriers use this type of program to generate background noise.
a. comfort noise generator
b. fuzzing
c. interference
Answer

8. What do you call a wireless access point that improves cellular reception inside a home or office building?
a. hoot-n-holler
b. femtocell
Answer

9. ARPU, an industry acronym for the income generated by a cell phone subscriber, is the metric a carrier uses to evaluate whether or not all revenue-generating potential has been exploited. What does ARPU stand for?
a. average revenue per user
b. acquired remittance per uplink
Answer

10. What year was the first cell phone commercially available in the U.S.?
a. 1975
b. 1983
c. 1991
Answer

BONUS: Which of these wireless technologies could support users at ranges up to 30 miles?
a. WiFi
b. WiMAX
Answer

This was last updated in August 2009

Start the conversation

Send me notifications when other members comment.

By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Please create a username to comment.

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchCompliance

  • risk map (risk heat map)

    A risk map, also known as a risk heat map, is a data visualization tool for communicating specific risks an organization faces.

  • internal audit (IA)

    An internal audit (IA) is an organizational initiative to monitor and analyze its own business operations in order to determine ...

  • pure risk (absolute risk)

    Pure risk, also called absolute risk, is a category of threat that is beyond human control and has only one possible outcome if ...

SearchSecurity

  • FIDO (Fast Identity Online)

    FIDO (Fast ID Online) is a set of technology-agnostic security specifications for strong authentication. FIDO is developed by the...

  • cryptanalysis

    Cryptanalysis is the study of ciphertext, ciphers and cryptosystems with the aim of understanding how they work and finding and ...

  • Trojan horse (computing)

    In computing, a Trojan horse is a program that appears harmless, but is, in fact, malicious.

SearchHealthIT

SearchDisasterRecovery

  • business continuity and disaster recovery (BCDR)

    Business continuity and disaster recovery (BCDR) are closely related practices that describe an organization's preparation for ...

  • business continuity plan (BCP)

    A business continuity plan (BCP) is a document that consists of the critical information an organization needs to continue ...

  • call tree

    A call tree -- sometimes referred to as a phone tree -- is a telecommunications chain for notifying specific individuals of an ...

SearchStorage

  • SSD TRIM

    SSD TRIM is an Advanced Technology Attachment (ATA) command that enables an operating system to inform a NAND flash solid-state ...

  • cloud storage service

    A cloud storage service is a business that maintains and manages its customers' data and makes that data accessible over a ...

  • cloud hosting

    Cloud hosting is the process of outsourcing an organization's computing and storage resources to a service provider that offers ...

SearchSolidStateStorage

  • hybrid hard disk drive (HDD)

    A hybrid hard disk drive is an electromechanical spinning hard disk that contains some amount of NAND Flash memory.

Close