In IEEE 802.11, _______ isan optionalaccess method that can be implemented inan infrastructure network (not in an ad hocnetwork). A) DCF B) PCF C) either (a) or (b) D) neither (a) nor (b)

In IEEE 802.11, _______ isan optionalaccess method that can be implemented inan infrastructure network (not in an ad hocnetwork).
A)
DCF
B)
PCF
C)
either (a) or (b)
D)
neither (a) nor (b)
by

1 Answer

Answer :

PCF
by

Related questions

In IEEE 802.11, a BSS with an AP is sometimes referred toas ____________. A) an ad hocarchitecture B) an infrastructurenetworkC)either (a) or (b)D)neither (a) nor (b)

Description : In IEEE 802.11, a BSS with an AP is sometimes referred toas ____________. A) an ad hocarchitecture B) an infrastructurenetwork C) either (a) or (b) D) neither (a) nor (b)

Last Answer : an infrastructurenetwork

In IEEE 802.11, a BSS without an AP is called an _________. A) an ad hocarchitecture B) an infrastructurenetwork C) either (a) or (b) D) neither (a) nor (b)

Description : In IEEE 802.11, a BSS without an AP is called an _________. A) an ad hocarchitecture B) an infrastructurenetwork C) either (a) or (b) D) neither (a) nor (b)

Last Answer : an ad hocarchitecture

In IEEE 802.11, the access method used in the PCF sublayer is ______. A) contention B) controlled C) polling D) none of the above

Description : In IEEE 802.11, the access method used in the PCF sublayer is ______. A) contention B) controlled C) polling D) none of the above

Last Answer : polling

In IEEE 802.11, the access method used in the DCF sublayer is _________. A) ALOHA B) CSMA/CA C) CSMA/CD D) none of the above

Description : In IEEE 802.11, the access method used in the DCF sublayer is _________. A) ALOHA B) CSMA/CA C) CSMA/CD D) none of the above

Last Answer : CSMA/CA

The IEEE 802.11standardfor wireless LANs defines twoservices: ______and_______. A) BSS; ASS B) ESS; SSS C) BSS; ESS D) BSS; DCF

Description : The IEEE 802.11standardfor wireless LANs defines twoservices: ______and_______. A) BSS; ASS B) ESS; SSS C) BSS; ESS D) BSS; DCF

Last Answer : BSS; ESS

The original IEEE 802.11,uses _________. A) FHSS B) DSSS C) OFDM D) either (a)or (b)

Description : The original IEEE 802.11,uses _________. A) FHSS B) DSSS C) OFDM D) either (a)or (b)

Last Answer : either (a)or (b)

In IEEE 802.11, when a frame is coming from an AP and going to astation, the address flag is _______. A) 00 B) 01 C) 10 D) 11

Description : In IEEE 802.11, when a frame is coming from an AP and going to astation, the address flag is _______. A) 00 B) 01 C) 10 D) 11

Last Answer : 01

IEEE hasdefined the specifications fora wireless LAN, called _______, whichcovers the physical and data link layers. A) IEEE 802.3 B) IEEE 802.5 C) IEEE 802.11 D) IEEE 802.2

Description : IEEE hasdefined the specifications fora wireless LAN, called _______, whichcovers the physical and data link layers. A) IEEE 802.3 B) IEEE 802.5 C) IEEE 802.11 D) IEEE 802.2

Last Answer : IEEE 802.11

Which of the following statements is TRUE about CSMA/CD a. IEEE 802.11 wireless LAN runs CSMA/CD protocol b. Ethernet is not based on CSMA/CD protocolc. CSMA/CD is not suitable for a high propagation delay network like satellite network d. There is no contention in a CSMA/CD network

Description : Which of the following statements is TRUE about CSMA/CD a. IEEE 802.11 wireless LAN runs CSMA/CD protocol b. Ethernet is not based on CSMA/CD protocol c. CSMA/CD is not suitable for a high propagation delay network like satellite network d. There is no contention in a CSMA/CD network

Last Answer : CSMA/CD is not suitable for a high propagation delay

The IEEE 802.11g, uses _________. A) FHSS B) DSSS C) OFDM D) either (a)or (b)

Description : The IEEE 802.11g, uses _________. A) FHSS B) DSSS C) OFDM D) either (a)or (b)

Last Answer : OFDM

The IEEE 802.11b, uses _________. A) FHSS B) DSSS C) OFDM D) either (a)or (b)

Description : The IEEE 802.11b, uses _________. A) FHSS B) DSSS C) OFDM D) either (a)or (b)

Last Answer : DSSS

The IEEE 802.11a, uses _________. A) FHSS B) DSSS C) OFDM D) either (a)or (b)

Description : The IEEE 802.11a, uses _________. A) FHSS B) DSSS C) OFDM D) either (a)or (b)

Last Answer : OFDM

The IEEE 802.11 wireless LANs use ________ types of frames. A) four B) five C) six D) none of the above

Description : The IEEE 802.11 wireless LANs use ________ types of frames. A) four B) five C) six D) none of the above

Last Answer : none of the above

IEEE 802.11g, has a datarate of _____Mbps. A) 1 B) 2C) 11 D) 22

Description : IEEE 802.11g, has a datarate of _____Mbps. A) 1 B) 2 C) 11 D) 22

Last Answer : 22

The original IEEE 802.11,has a data rate of _____Mbps. A) 1 B) 6 C) 11 D) 22

Description : The original IEEE 802.11,has a data rate of _____Mbps. A) 1 B) 6 C) 11 D) 22

Last Answer : 1

. In IEEE 802.11, the addressing mechanism can include upto ______addresses. A) four B) five C) six D) none of the above

Description : . In IEEE 802.11, the addressing mechanism can include upto ______addresses. A) four B) five C) six D) none of the above

Last Answer : none of the above

In IEEE 802.11, the MAC layer framehas ______ fields. A) four B) five C) six D) none of the above

Description : In IEEE 802.11, the MAC layer framehas ______ fields. A) four B) five C) six D) none of the above

Last Answer : four

In IEEE 802.11, the ______ is a timerused for collision avoidance. A) NAV B) BSS C) ESS D) none of the above

Description : In IEEE 802.11, the ______ is a timerused for collision avoidance. A) NAV B) BSS C) ESS D) none of the above

Last Answer : NAV

In IEEE 802.11, when a frame isgoingfrom one AP to another AP in a wireless distribution system, the address flag is_____ A) 00 B) 01 C) 10 D) 11

Description : In IEEE 802.11, when a frame isgoingfrom one AP to another AP in a wireless distribution system, the address flag is_____ A) 00 B) 01 C) 10 D) 11

Last Answer : 11

In IEEE 802.11, when a frame isgoingfrom a station to an AP, theaddress flag is _____. A) 00 B) 01 C) 10 D) 11

Description : In IEEE 802.11, when a frame isgoingfrom a station to an AP, theaddress flag is _____. A) 00 B) 01 C) 10 D) 11

Last Answer : 10

In IEEE 802.11, when a frame isgoingfrom one station in a BSS toanother without passing through thedistribution system, the address flag is _____ A) 00 B) 01 C) 10 D) 11

Description : In IEEE 802.11, when a frame isgoingfrom one station in a BSS toanother without passing through thedistribution system, the address flag is _____ A) 00 B) 01 C) 10 D) 11

Last Answer : 00

In IEEE 802.11, astation with ________ mobility can move from one ESS toanother. A) no-transition B) BSS-transition C) ESS-transition D) none of the above

Description : In IEEE 802.11, astation with ________ mobility can move from one ESS toanother. A) no-transition B) BSS-transition C) ESS-transition D) none of the above

Last Answer : ESS-transition

In IEEE 802.11, astation with ________mobility can move from one BSS toanother, but the movement is confined inside one ESS. A) no-transition B) BSS-transition C) ESS-transition D) none of the above

Description : In IEEE 802.11, astation with ________mobility can move from one BSS toanother, but the movement is confined inside one ESS. A) no-transition B) BSS-transition C) ESS-transition D) none of the above

Last Answer : no-transition

In IEEE 802.11, astation with ________ mobility iseither stationary (not moving) or moving only insidea BSS. A) no-transition B) BSS-transition C) ESS-transition D) none of the above

Description : In IEEE 802.11, astation with ________ mobility iseither stationary (not moving) or moving only insidea BSS. A) no-transition B) BSS-transition C) ESS-transition D) none of the above

Last Answer : no-transition

. In IEEE 802.11, communication between two stations in twodifferent BSSs usually occurs viatwo ________. A) BSSs B) ESSs C) APs D) none of the above

Description : . In IEEE 802.11, communication between two stations in twodifferent BSSs usually occurs viatwo ________. A) BSSs B) ESSs C) APs D) none of the above

Last Answer : APs

In IEEE 802.11, a___ is made of stationary or mobile wireless stations and anoptional central base station, known as the access point (AP). A) ESS B) BSS C) CSS D) none of the above

Description : In IEEE 802.11, a___ is made of stationary or mobile wireless stations and anoptional central base station, known as the access point (AP). A) ESS B) BSS C) CSS D) none of the above

Last Answer : BSS

Match the following IEEE No to their corresponding Name for IEEE 802 standards for LANs. i) 802.3 a) WiFi ii) 802.11 b) WiMa iii) 802.15.1 c) Ethernet iv) 802.16 d) Bluetooth a. i-b, ii-c, iii-d, iv-a b. i-c, ii-d, iii-a, iv-b c. i-c, ii-a, iii-d, iv-b d. i-b, ii-d, iii-c, iv-a

Description : Match the following IEEE No to their corresponding Name for IEEE 802 standards for LANs. i) 802.3 a) WiFi ii) 802.11 b) WiMa iii) 802.15.1 c) Ethernet iv) 802.16 d) Bluetooth a. i-b, ii-c, iii-d, iv-a b. i-c, ii-d, iii-a, iv-b c. i-c, ii-a, iii-d, iv-b d. i-b, ii-d, iii-c, iv-a

Last Answer : c. i-c, ii-a, iii-d, iv-b

Inan HFC network, the upstream data are modulated using the _______ modulation technique. A) QAM B) QPSK C) PCM D) ASK

Description : Inan HFC network, the upstream data are modulated using the _______ modulation technique. A) QAM B) QPSK C) PCM D) ASK

Last Answer : QPSK

Inan HFC network, the downstream data are modulated using the _______ modulation technique. A) PSK B) QAM C) PCM D) ASK

Description : Inan HFC network, the downstream data are modulated using the _______ modulation technique. A) PSK B) QAM C) PCM D) ASK

Last Answer : QAM

The IEEE 802.3 Standard defines _________ CSMA/CD as the access method for first-generation 10-Mbps Ethernet. A) 1-persistent B) p-persistent C) non-persistent D) none of the above

Description : The IEEE 802.3 Standard defines _________ CSMA/CD as the access method for first-generation 10-Mbps Ethernet. A) 1-persistent B) p-persistent C) non-persistent D) none of the above

Last Answer : 1-persistent

IEEE 802.11b, has a datarate of _____Mbps. A) 1 B) 2 C) 5.5 D) none of the above

Description : IEEE 802.11b, has a datarate of _____Mbps. A) 1 B) 2 C) 5.5 D) none of the above

Last Answer : 5.5

IEEE 802.1d specification, defines _________criteria for a transparent bridges. A) two B) three C) four D) none of the above

Description : IEEE 802.1d specification, defines _________criteria for a transparent bridges. A) two B) three C) four D) none of the above

Last Answer : three

IEEE 802.3ab defines Gigabit Ethernet transmission over unshieldedtwisted pair (UTP) category 5, 5e or 6 cabling known as .................... a. 1000 BASE-T b. 1000 BASE-SX c. 1000 BASE-LX d. 1000 BASE-CX

Description : IEEE 802.3ab defines Gigabit Ethernet transmission over unshielded twisted pair (UTP) category 5, 5e or 6 cabling known as .................... a. 1000 BASE-T b. 1000 BASE-SX c. 1000 BASE-LX d. 1000 BASE-CX

Last Answer : a. 1000 BASE-T

What is the difference between the Ethernet frame preamble field and the IEEE 802.3 preamble and start of frame Delimiter fields? a. 1 byte b. 1 bit c. 4 bit d. 16 bit

Description : What is the difference between the Ethernet frame preamble field and the IEEE 802.3 preamble and start of frame Delimiter fields? a. 1 byte b. 1 bit c. 4 bit d. 16 bit

Last Answer : a. 1 byte

_______ ispart of the media; its location in the Internet model is below thephysical layer. A) An activehub B) A passivehub C) either (a)or (b) D) neither (a) nor (b)

Description : _______ ispart of the media; its location in the Internet model is below thephysical layer. A) An activehub B) A passivehub C) either (a)or (b) D) neither (a) nor (b)

Last Answer : A passivehub

In astar-topology Ethernet LAN, _______ is just a point where the signals coming from different stations collide; it is thecollision point. A) An activehub B) A passivehub C) either (a)or (b) D) neither (a) nor (b)

Description : In astar-topology Ethernet LAN, _______ is just a point where the signals coming from different stations collide; it is thecollision point. A) An activehub B) A passivehub C) either (a)or (b) D) neither (a) nor (b)

Last Answer : A passivehub

Analog-to-analog conversionis needed if the available bandwidthis _______. A) low-pass B) band-pass C) either (a)or (b) D) neither (a) nor (b)

Description : Analog-to-analog conversionis needed if the available bandwidthis _______. A) low-pass B) band-pass C) either (a)or (b) D) neither (a) nor (b)

Last Answer : band-pass

FSM isan _________technique. A) analog B) digital C) either (a)or (b) D) none of the above

Description : FSM isan _________technique. A) analog B) digital C) either (a)or (b) D) none of the above

Last Answer : analog

A ring SONET network can be _________. A) unidirectional B) bidirectional. C) either (a) or (b) D) neither (a) nor (b)

Description : A ring SONET network can be _________. A) unidirectional B) bidirectional. C) either (a) or (b) D) neither (a) nor (b)

Last Answer : bidirectional.

A linear SONET network can be __________. A) point-to-point B) multipoint C) either (a) or (b) D) neither (a) nor (b)

Description : A linear SONET network can be __________. A) point-to-point B) multipoint C) either (a) or (b) D) neither (a) nor (b)

Last Answer : point-to-point

The …………………... option tells netstat to display the status of all configured network interfaces. A. -n B. -i C. either a or b D. neither a nor b

Description : The …………………... option tells netstat to display the status of all configured network interfaces. A. -n B. -i C. either a or b D. neither a nor b

Last Answer : B. -i

HDLC isan acronym for _______. A) High-duplex line communication B) High-leveldata link control C) Half-duplex digital link combination D) Hostdouble-level circuit

Description : HDLC isan acronym for _______. A) High-duplex line communication B) High-leveldata link control C) Half-duplex digital link combination D) Hostdouble-level circuit

Last Answer : High-leveldata link control

A local telephone network isan example of a_______ network. A) packet-switched B) circuit-switched C) message-switched D) none of the above

Description : A local telephone network isan example of a_______ network. A) packet-switched B) circuit-switched C) message-switched D) none of the above

Last Answer : circuit-switched

Match the following IEEE No to their corresponding Name for IEEE 802 standards for LANs. i) 802.3 a) WiFi ii) 802.11 b) WiMa iii) 802.15.1 c) Ethernet iv) 802.16 d) Bluetooth A) i-b, ii-c, iii-d, iv-a B) i-c, ii-d, iii-a, iv-b C) i-c, ii-a, iii-d, iv-b D) i-b, ii-d, iii-c, iv-a

Description : Match the following IEEE No to their corresponding Name for IEEE 802 standards for LANs. i) 802.3 a) WiFi ii) 802.11 b) WiMa iii) 802.15.1 c) Ethernet iv) 802.16 d) Bluetooth A) i-b, ii-c, iii-d, iv-a B) i-c, ii-d, iii-a, iv-b C) i-c, ii-a, iii-d, iv-b D) i-b, ii-d, iii-c, iv-a

Last Answer : C) i-c, ii-a, iii-d, iv-b

Which of the following spread spectrum techniques were used in the original IEEE 802.11 standard? a) FHSS and DSSS b) THSS and FHSS c) THSS and DSSS d) Hybrid technique

Description : Which of the following spread spectrum techniques were used in the original IEEE 802.11 standard? a) FHSS and DSSS b) THSS and FHSS c) THSS and DSSS d) Hybrid technique

Last Answer : a) FHSS and DSSS

Which of the following is the 802.11 High Rate Standard? a) IEEE 802.15 b) IEEE 802.15.4 c) IEEE 802.11g d) IEEE 802.11b

Description : Which of the following is the 802.11 High Rate Standard? a) IEEE 802.15 b) IEEE 802.15.4 c) IEEE 802.11g d) IEEE 802.11b

Last Answer : d) IEEE 802.11b

Which of the following specifies a set of media access control (MAC) and physical layer specifications for implementing WLANs? a) IEEE 802.16 b) IEEE 802.3 c) IEEE 802.11 d) IEEE 802.15

Description : Which of the following specifies a set of media access control (MAC) and physical layer specifications for implementing WLANs? a) IEEE 802.16 b) IEEE 802.3 c) IEEE 802.11 d) IEEE 802.15

Last Answer : c) IEEE 802.11

Which multiple access technique is used by IEEE 802.11 standard for wireless LAN? a. ALOHA b. CSMA/CA c. CDMA d. none of the mentioned

Description : Which multiple access technique is used by IEEE 802.11 standard for wireless LAN? a. ALOHA b. CSMA/CA c. CDMA d. none of the mentioned

Last Answer : b. CSMA/CA

Which IEEE standards specify the technologies for wireless LANs 802.11 a. IEEE 802.11 b. IEEE 802.10 c. IEEE 279.6 d. IEEE 275.4

Description : Which IEEE standards specify the technologies for wireless LANs 802.11 a. IEEE 802.11 b. IEEE 802.10 c. IEEE 279.6 d. IEEE 275.4

Last Answer : a. IEEE 802.11

Which IEEE standards specify the technologies for wireless LANs 802.11 a. IEEE 802.11 b. IEEE 802.10 c. IEEE 279.6 d. IEEE 275.4

Description : Which IEEE standards specify the technologies for wireless LANs 802.11 a. IEEE 802.11 b. IEEE 802.10 c. IEEE 279.6 d. IEEE 275.4

Last Answer : a. IEEE 802.11