COMMS 12 - Latest Technology.doc

MITRC REFRESHER COURSE ANSWER KEY  Latest Technologies b. c. d.

1.

The Bluetooth technology was named after the 10 th century Danish King who unified Denmark. What is his first name? a. Dennis b. Harold c. Michael d. George 2.

Blueto Bluetooth oth work works s in the the range range of 2.4 2.4 GHz GHz freque frequency ncy band band commonly called the ISM band. ISM means a. Info Inform rmat atio ion n Syste Systems ms Manag Managem ement ent b. Info Inform rmat atio ion n Sta Stand ndar ard d Met Meter  er  c. Indus Industr tria iall Scie Scienti ntifi fic c Medic Medical al d. Indu Indust stri rial al Sta Stand ndar ard d Medi Medica call

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Bluetooth Bluetooth is a wireless wireless proximity proximity communica communication tion standard standard that has been under development for a few years, which promises to connect the electronic devices of all horizons, without wires, without infrared, only by a. Audio fr frequencies b. Radio frequencies c. Light frequencies d. Microwave frequencies

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14. One of the following GPRS statements is false. false.

b.

The following following are character characteristic istics s of Bluetooth Bluetooth except except a. Small b. Low power   c. W ireless d. Long range

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The range range cove covered red by Blue Bluetoo tooth th tech technol nology ogy a. 10 m b. 10 mi c. 10 km d. 10 in

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One of of the the followin following g stateme statements nts about about Bluetooth Bluetooth is false: false: a. Bluetooth doesn’t require an LOS connection in order to communicate b. Blueto Bluetooth oth is is design designed ed to to operat operate e in a nois noisy y radio radio frequency environment c. Bluetooth is a global de facto standard for wireless connectivity. d. Bluetooth doesn’t use frequency hopping

8.

A Blueto Bluetooth oth netw network ork with with one one maste masterr and one one or more more slaves. a. Point to point b. Point to multipoint c. Piconet d. Scatternet

9.

The maximu maximum m numbe numberr of device devices s in a picone piconet. t. a. 12 b. 7 c. 8 d. 10

GPRS uses, store and forward a. GPRS GPRS facili facilitat tates es instan instantt connec connectio tions ns where whereby by information can be sent and received immediately as the need arises. c. GPRS fully enables mobile internet functionally d. GPRS has limited cell capacity for all users.

15. The followin following g are applic applications ations of GPRS GPRS except except a. Chat b. Textual and visual information c. Still and moving images d. BISDN 16. 10Base2 10Base2 and 10Base 10Base5 5 use BNC “T” “T” connector connectors s as media media attachment units. BNC means a. Bayonet Neill Concelman type b. Blonet connector   c. BIOS Network Connector   d. Bias Bias Net Netwo work rk Con Conne nect ctor  or 

The protoc protocol ol used used by Bluetooth Bluetooth for carrying carrying data data over over low low power radio transmission. a. TCP/IP b. WAP c. PIP d. PPP

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Global Packet Radio Service General Packet Radio Service Global Positioning Radio System

17. An applicatio application n environment environment and and set o communica communication tion protocols for wireless devices designed to enable manufacturer, vendor and technology independent access to the internet and advanced telephony services. a. TCP/IP b. WAP c. PIP d. PPP 18. An intermedi intermediary ary between between the the internet internet and the the mobile mobile network. It converts WAP request into a W eb request when we send information from a mobile phone to the internet and vice versa. a. WAP gateway b. W AP AP interface c. WTP d. HTTP interface 19. The following following are limitat limitations ions of mobile mobile phones phones for internet internet access except a. Narrowband access b. Small display c. Limited memory d. Netw Networ ork k sta stand ndar ard d dep depend enden entt 20. The WAP gateway gateway transpor transportt layer that that sends and and receives receives messages via any available bearer network a. WTLS b. WDP c. WTP d. WSP 21. A new technolog technology y which offers offers both both internet internet access access and interactive television programming. a. Interactive TV TV b. Web TV c. Satellite TV d. Both a and b 22. A packet packet switched switched data network network protoc protocol ol which defines defines an international recommendation for the exchange of data as well as control information between a user device and a network node. a. X.21 b. X.24 c. X.25 d. X.2

10. When two two piconets piconets are so so close, they have have overlappi overlapping ng coverage areas. This scenario is called a. Interference b. Crosstalk c. Distortion d. Scatternet 11. A new non-voice non-voice value value added servic service e that allows allows information information to be sent and received across a mobile telephone network. It supplements today’s circuit switched data and short message service. a. GPS b. GPRS c. W AP d. FTP

23. Used to to create create pages that that can can be delivered delivered using using WAP a. WAE b. WSL c. WML d. WTLS

12. The following following are are key user user features features of GPRS GPRS except except a. Speed b. Immediacy c. No store and forward d. Service access

24. An X.25 X.25 network network layer layer protocol protocol which which manages manages packet packet exchange between DTE devices across virtual circuits. a. LAPB b. LAP c. LAPD d. PLP

13. 13. GPRS GPRS mean means s a.

25. One of the the following following is not a distinct distinct mode mode operated operated by the the PLP (Packet Layer Protocol).

General Packet Radio System 1

MITRC REFRESHER COURSE Latest Technology a. b. c. d.

Call set-up Data transfer   Idle Checksum

c. d.

ISDN ADSL

26. LABP in X.25 means a. Link Access Procedure Balanced b. Link Access Procedure B channel c. Link Access Protocol Balanced d. Link Access Protocol B- channel

38. The ATM layer which defines the cell format, how cells are transported and how congestion is handled, virtual circuit creation and termination. a. Physical b. Network c. Adaptation d. Application

27. Refers to communication services such as voice, facsimile or  voice messaging applications transmitted via the internet a. VOIP b. TCP/IP c. PPP d. SLIP

39. The ATM interface between ATM connection points of the different carrier networks. UNI NNI ICI DXI

28. The following are methods of making calls via VOIP except a. Directory services b . Point to po int c. Gateway d. IP telephony

40. A service independent telecommunications network wherein intelligence is taken out of the switch and placed in computer  nodes that are distributed throughout the network. a. IN b. CCS7 c. BISDN d. ATM

29. A flexible data communications system implemented as an alternative to r as an extension to a wired LAN. It uses RF technology to transmit and receive data over the air, minimizing the need for wired connection. a. WAP b. Wireless LAN c. Satellite Internet Access d. Direc PC

41. The following are benefits from IN except a. Introduce new service rapidly b. Establish vendor independence c. Provide service customization d. Create open interface 42. A method of transmitting, sending and delivering voice over  the Internet with a suitable quality of service. a. VOIP b. Web TV c. Wireless LAN

30. The following are Wireless LAN technologies except a. Narrowband b. Spread spectrum c. Infrared d. Wideband

d.

31. One of the following is not a Wireless LAN Configuration a. Peer to peer   b. Client and access point c. Use of an extension point d. Bus

BISDN

43. The following a. b. c. d.

32. In a typical wireless L AN configuration, it connects to the

are VOIP methods except Point to point Directory Gateway Router 

44. A secure, private communications tunnel between 2 or more devices across a public network, like the Internet a. Wireless LAN b. ISDN c. VPN d. VOIP

wired network from a fixed l ocation using standard cabling.  At a minimum, it receives buffers and transmits data between the wireless LAN and the wired network infrastructure. a. PCI card b. NIC c. Access point d. Extension point

45. A user-to-LAN connection used by a company that has employees who need to connect to the private network from various remote locations. a. Remote Access VPN b. VPDN c. Site to site VPN d. Both a and b

33. The following are advantages of Wireless LAN except a. Mobility b. Flexibility c. Scalability d. Interoperability

46. The bluetooth specification was first developed by Ericsson and was later formalized by the Bluetooth SIG. SIG means a. Special Interest Group b. Service Investment Group c. Service Independent Group d. Server Investigation Group

34. A high performance, cell oriented switching and multiplexing technology that utilizes fixed length packets to carry d ifferent types of traffic. a. X.25 b. Frame Relay c. ATM d. BISDN

47. Bluetooth devices with maximum output power of 100 mw are classified as Class a. 1 b. 2 c. 3 d. 4

35. An ATM cell has _____ bytes. a. 48 b. 53 c. 128 d. 133

48. The TIA specification which is the basis of TDMA PCS air  interface technology a. IS-136 b. IEEE 802.15 c. IEEE 802.11 d. IS-54

36. The basic unit in ATM which carries a single stream of cells in order from user to user. a. PVC b. CIR c. Virtual Path d. Virtual Channel

49. Provides high speed internet access over existing copper  telephone lines a. ISDN b. BISDN c. DSL d. HFC

37. A public digital telecommunication standard that is designed to offer high end multimedia, television, CD quality music, data networking and other services to b usiness and home users. a. BISDN b. ATM 2

MITRC REFRESHER COURSE ANSWER KEY  Latest Technologies 50. An emissive flat panel display where light is created by phosphors excited by a plasma discharge between two flat panels of glass. a. LCD b. Plasma Display c. CRT d. HDTV

d.

63. A content representation standard for information search. a. MPEG1 b. MPEG2 c. MPEG4 d. MPEG7 64. The first optical disc storage media Laser Disc CD VCD DVD

51.  A generic term for a device that is similar to a VCR but

records TV data in digital format a. VTR b. DAB c. DVR d. CDR

65. Bluetooth radio modules use _____ for modulation a. GMSK b. GFSK c. PCM d. DM

52. A nickname given to a family of international standards used for coding audio visual information in a digital compressed format. a. JPEG b. MPEG c. DCT d. WMV

66. The three low power modes of Bluetooth to conserve battery life. a. Sniff mode b. Hold Mode c. Park Mode d. Run Mode

53. The founder of the MPEG group a. Chiariglione b. Gozon c. Blatand d. Roentgen

67. Matte painting is popularly known as

a. b. c. d.

54. Translates the pixel integer values into an 8-bit unsigned information that is used for further processing of the picture data. a. Quantizer   b. DCT c. DVR d. LD

56. Compression standard used by DVD to store the video and audio a. MPEG1 b. MPEG2 c. MPEG3 d. MPEG4 are DVD formats except DVD-5 DVD-8 DVD-9 DVD-10

58. The aspect ratio of HDTV a. 16:9 b. 1.78:1 c. 4:3 d. Both a and b

72. A SONET process used when tributaries are adapted into Virtual Tributaries by adding justification bits and path overhead information a. Mapping b. Stuffing c. Aligning d. Multiplexing 73. A SONET network configuration with survivability or  redundancy as its main advantage a. Point to point b. Point to multipoint c. Hub network d. Ring 74. A computerized system that provides non-simultaneous communication 24 hours a day. The system can answer your  phone when you cannot or when you are on the p hone and engaged with another call  Answering machine Voice mail Call waiting PABX 75. The following statements about voice mail are true except a. Voi ce mail provides an open telephone line b. Voi ce mail places a numb er of cal ls even i f   the phone is unanswered c. Voi ce mail offers 24 hou rs serv ice a d ay d. Voice mail service is expensive 76. The European or CCITT equivalent of SONET

59. Compression and encoding scheme used by HDTV.

a. b. c. d.

MPEG1 MPEG2 MPEG3 MPEG4

60. Is designed for compressing full-color or gray scale images of natural, real world scenes using 20:1 compression, 24 bits/pixels a. JPEG b. MPEG c. BMP d. GIF 61. The other image format widely used on the net which can only store 8 bits / pixel. a. JPEG b. MPEG c. BMP d. GIF 62. MPEG standard for multimedia applications.

a. b. c.

Bluescreen Greenscreen Computer Generation Character Generation

68. The following are advantages of Greenscreen over  Bluescreen except a. Green paint has grea ter reflectance b. Green screen takes less light to light i t c. Video cameras are usually most sensitive in the green channel d. Green spill is usually objectionable and obvious even in small amounts 69. A technology for carrying may signals of different capabilities through a synchronous, flexible optical hierarchy a. SONET b. ATM c. BISDN d. HFC 70. It is one of the most important considerations in digital transmission. It is using a series of repetitive pulses to keep the bit rate of data constant and to indicate where the ones and zeroes are located in a data stream a. Sync b. Clocking c. PRC d. GMT 71. The following are SONET network elements except a. Terminal multiplexer   b. Regenerator   c. ADM d. PRC

55. Compression standard used by VCD to store the video and audio a. MPEG1 b. MPEG2 c. MPEG3 d. MPEG4

57. The following a. b. c. d.

MPEG7

MPEG1 MPEG2 MPEG4 3

MITRC REFRESHER COURSE Latest Technology

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a. HFC b. PDH c. SDH d. ADSL The following are typical SDH network equipment except a. ADM b. Terminal Unit c. DXC d. SCP The fundamental signal of SDH is STM 1 with a fundamental rate of 155.52 Mbps. STM means a. Synchronous Transport Module b. Synchronous Transfer Mode c. Standard Transport Mechanism d. Service Transport Mode A network within the SDH which allows the monitoring of the performance of the network detection and analysis of faults and the setting up and clearing down of links between customer locations a. STM b. PDH c. TMN d. STS The device responsible for converting the 2-wire line from the local system into a 4-wire line to couple with the ISDN equipment. a. NTE b. TA c. Hybrid d. Transformer   The device that allows a non-ISDN equipment to be connected to the ISDN line. a. NTE b. TA c. Hybrid d. Transformer   ISDN channel used to carry signaling and supervisory information to the network. a. B b. D c. H d. BISDN Speed of the D-channel for a PRI. a. 16 bps b. 64 kbps 128 kbps c. d. 32 kbps H channel composed of 30 B channels a. H0 b. H11 c. H12 d. H21 Speed of the BRI a. 64 kbps b. 128 kbps c. 144 kbps d. 256 kbps PRI for US a. 2B + D b. 23B + D c. 30B + D d. 2.048 Mbps Satellite Internet Access is a satellite delivered internet service which can provide a cost effective, high speed _____  internet solution to corporate users. a. Download b. Upload c. Fi le transfer   d . Mail transfer   A transceiver device used to connect the PC to a typical WLAN a. MAU b . Ac cess point c. Access device d. Modem A BISDN access network which transports high bit rate information on the existing copper pair telephone requiring no changes to the PSTN. a. HFC b. FTTB c. Radio access d. ADSL A BISDN equipment located at the subscriber premises which bridges the cable and separates the telephony from video signals on the downstream and injects signals on the upstream. a. CCU b. CAU

c. Cable Router   d. Cybersurfr modem 91. A BISDN equipment which provides the interface between an HFC transmission system and local and remote TCP/IP networks. a. CCU b. CAU c. Cable Router   d. Cybersurfr modem 92. A service independent telecommunications network where intelligence is taken out of the switch and placed in computer  nodes that are distributed throughout the network. a. IN b. BISDN c. Web TV d. VOIP 93. A service requiring transmission channels capable of  supporting rates greater than the primary rate. a. IN b. BISDN c. Web TV d. VOIP 94. A flexible data communications system implemented as an extension to or as an alternative for a wired local area network within a building or campus. a. IN b. WIN c. WLAN d. BISDN 95. A DISDN service by which consumers purchase goods and services from TV channels dedicated to selling products or  from on-line computer service providers. a. T elemarke ting b. Home Shopping c. Sma rt Sho ppin g d. TV Ads 96. A cable service that allows viewers to purchase movies r  special events on a feature basis. a. Pay Per View b. Video On Demand c. NVOD d. CATV service 97. Interactive services that enables students from around the country to participate in virtual classrooms. a. Distance Learning b. International Correspondence Courses c. Interactive Classroom d. Internet Classroom Assistance 98. Consulting face to face with a doctor would be as easy as placing a telephone call. Home check-ups could be possible with an interactive network. a. Physical Examinations b. Tele medicine c. T elecheck-up d. Virtual Docto r   99. Financial transactions may be conducted at home. Beyond monitoring account balances, users could authorize electronic fund transfers to pay bills, analyze stock performance of create a home budget. a. Home Banking b. Telebanking c. ATM d. Virtual ATM 100. Two digital signals whose transmission occur at almost the same rate are a. Asynchronous b. Synchronous c. Plesiochronous d. Mesochronous 101. Which of the following is not a basic SONET element? a. Switch interface b. Digital loop carrier   c. Service control point d. Add/drop multiplexer   102. SONET systems are a. T wisted pai r coppe r based technology b. Fiber optic technology c. Hybrid fiber coax technology d. Wireless technology 103. STM means a. Synchronous Transport Module b. Synchronous Transfer Mechanism c. Section Terminating Module d. Synchronous Transfer Mode 104. The new name of CCITT a. SCC b. DECT c. ITU-T 4

MITRC REFRESHER COURSE ANSWER KEY  Latest Technologies d. ANSI 105. The following are Wireless LAN configurations except a. Peer to peer   b. Client & access point c. Multiple access points & roaming d. Ring

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