Wireless Communication

Which of the following is/are the main part(s) of basic cellular system

• a.      A cell Site

• b.      A mobile Unit

• c.      A mobile Telephone Switching Office

• d.     All of the above

Tags

NGSS.MS-LS1-3

What does SGSN stands for?

• a.      Serving GPRS Support Node

• b.      Supporting GGSN Support Node

• c.      Supporting GPRS Support Node

• d.      Supporting Gateway Support Node

State whether True of False

                 i.          The cells or subdivisions of a geographical area are always hexagonal.

               ii.          A land to Mobile call originates through the Telephone exchange.

• a.      True, False

• b.     False, True

• c.      False, False

• d.      True, True

  State whether True of False.

                 i.          In GSM only TDMA is used.

               ii.          There is zero inter-channel interference in CDMA.

• a.      True, False

• b.      False, True

• c.     False, False

• d.      True, True

Tags

NGSS.MS-PS4-3

What type of handovers is supported by GSM?

• a.     Hard handover only

• b.      Soft handover only

• c.      Hard and soft handover

• d.      Hard, soft and softest handover

Which organization is responsible for developing LTE standards?

• a.      UMTS

• b.     3GPP

• c.      3GPP2

• d.      ISO

OFDMA stands for ________

• a.      omnidirectional frequency division multiple access

• b.      orthogonal frequency duplex multiple access

• c.      orthogonal frequency divider multiple access

• d.     orthogonal frequency division multiple access

Tags

NGSS.HS-PS4-5

MIMO stands for _______

• a.      Many input many output

• b.     Multiple input multiple output

• c.      Major input minor output

• d.      Minor input minor output

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-5

Specifications for a wireless LAN are called

• Standard 802.3z

• Standard 802.3u

• Project 802.3

• IEEE 802.11

Tags

NGSS.MS-PS4-3

Which of the following usually stores permanently user data that is also relevant to GSM mobile systems?

• VLR

• HLR

• SIM

• AuC