Description : In Bluetooth, theL2CAP sublayer, is roughly equivalent to the LLC sublayer inLANs. A) radio B) baseband C) L2CAP D) none of the above
Last Answer : L2CAP
Description : In Bluetooth, the_______ layer is roughly equivalent to thephysical layer of theInternet model. A) radio B) baseband C) L2CAP D) none of the above
Last Answer : radio
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
Description : The _______ layer of Ethernet consistsof the LLC sublayer and the MAC sublayer. A) data link B) physical C) network D) none of the above
Last Answer : data link
Description : Several protocols for upper layers in bluetooth use _________ a) UDP b) HSP c) ITC d) L2CAP
Last Answer : d) L2CAP
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
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
Description : Which sublayer of the data link layer performs data link functions that depend upon the type of medium? a. logical link control sublayer b. media access control sublayer c. network interface control sublayer d. error control sublayer
Last Answer : b. media access control sublayer
Description : Automatic repeat request error management mechanism is provided by ________ a. logical link control sublayer b. media access control sublayer c. network interface control sublayer d. application access control sublayer
Last Answer : a. logical link control sublayer
Description : The portion of physical layer that interfaces with the media access control sublayer is called ___________ a. physical signalling sublayer b. physical data sublayer c. physical address sublayer d. physical transport sublayer
Last Answer : a. physical signalling sublayer
Description : Which sublayer of the data link layer performs data link functions that depend upon the type of medium? A. logical link control sublayer B. media access control sublayer C. network interface control sublayer D. error control sublayer
Last Answer : B. media access control sublayer
Description : Automatic repeat request error management mechanism is provided by ________ A. logical link control sublayer B. media access control sublayer C. network interface control sublayer D. application access control sublayer
Last Answer : A. logical link control sublayer
Description : Baseband transmission of adigital signal is possible only if wehave a ____channel. A) low-pass B) bandpass C) low rate D) high rate
Last Answer : ow-pass
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
Description : In SONET, for each byte, the bitsare transmitted ____________. A) from least significant to the most significant B) from most significant tothe least significant C) two at atime D) three at atime
Last Answer : from least significant to the most significant
Description : In IPv6,a _______address is usedif aLAN uses the Internet protocols but isnot connected tothe Internet for security reasons. A) link local B) site local C) mapped D) none of the above
Last Answer : link local
Description : In classless addressing, the _______ is the varying part (similar tothe hostid). A) suffix B) prefix C) hostid D) none of the above
Last Answer : suffix
Description : Data integrity control A. is used to set upper and lower limits on numeric data B. requires the use of passwords toprohibit unauthorized access tothe file C. has the data dictionary keep thedate and time ... back-up,and most recent modificationfor all files D. All of theabove E. None of the above
Last Answer : has the data dictionary keep thedate and time of lastaccess last back-up,and most recent modificationfor all files
Description : _____ refers tothe structure or format of the data, meaning the order in which they are presented. A) Semantics B) Syntax C) Timing D) All of theabove
Last Answer : Syntax
Description : Carrier is A. One or more conductors that serve as a common connection for a related group of devices B. a continuous frequency capableof being modulated or impressed witha second signal C. ... that provides a data communications service among stations attached tothe network E. None of the above
Last Answer : a continuous frequency capableof being modulated or impressed witha second signa
Description : Satellite-Switched Time-Division Multiple Access (SS/TDMA) is A. the method of determining whichdevice has access tothe transmission medium at any time. B. a medium access control technique for ... switching is used to dynamically changethechannel assignments D. All of theabove E. None of the above
Last Answer : a form of TDMA in which circuit switching is used to dynamically changethechannel assignments
Description : Contention is A. One or more conductors that serve as a common connection for a related group of devices B. a continuous frequency capableof being modulated or impressed witha second signal C. ... that provides a data communications service among stations attached tothe network E. None of the above
Last Answer : the condition whentwo or more stations attempt to use the same channel at the same time
Description : The Internet Control Message Protocol (ICMP) A. allows gateways to send error acontrol messages toother gateways or hosts B. provides communication between the Internet Protocol Software on one machine ... and takeaction to correct theproblem D. All of theabove E. None of the above
Last Answer : All of theabove
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
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
Description : A _______LAN allows several LANs to be connected. A) backbone B) wireless C) wired D) none of the above
Last Answer : backbone
Description : Your company has a LAN in its downtown officeandhas now set upa LAN inthe manufacturing plant inthe suburbs. Toenable everyoneto sharedata and resources between the two LANs, what type of device(s) are neededto connect them? Choose the most correct answer. A. Modem B. Cable C. Hub D. Router
Last Answer : Router
Description : In respect of OSI model, LANs implement a. lower two layers b. all seven layers c. upper five layers d. None of the above
Last Answer : b. all seven layers
Description : What is the purpose of using a Bridge in computer network? A. to connect LANs B. to separate LANs C. to control Network Speed D. All of the above
Last Answer : A. to connect LANs
Description : What type of blood capillary located in this sublayer is uniquely suited for absorption of nutrient material?
Last Answer : Feel Free to Answer
Description : Bluetooth uses ______method in thephysical layer to avoid interference from other devicesor othernetworks. A) DSSS B) FHSS C) FDMA D) none of the above
Last Answer : FHSS
Description : In Bluetooth, the_____ link is used when data integrity is more important than avoiding latency. A) SCO B) ACL C) ACO D) SCL
Last Answer : ACL
Description : In Bluetooth, the_____ link is used when avoiding latency (delay in data delivery) is more important than integrity (error-free delivery). A) SCO B) ACL C) ACO D) SCL
Last Answer : SCO
Description : The access method in Bluetooth is________. A) FDMA B) TDD-TDMA C) CDMA D) none of the above
Last Answer : TDD-TDMA
Description : In Bluetooth, thecurrent data rateis ____Mbps A) 2 B) 5 C) 11 D) none of the above
Description : A Bluetooth network consists of _____primary device(s)and up to____ secondary devices. A) one; five B) five; three C) two; six D) one; seven
Last Answer : one; seven
Description : In Bluetooth, multiple ________ form a network called a _________. A) scatternet; piconets B) piconets: scatternet C) piconets:bluenet D) bluenet; scatternet
Last Answer : piconets: scatternet
Description : A Bluetooth network is called a ________. A) piconet B) scatternet C) bluenet D) none of the above
Last Answer : piconet
Description : Bluetooth is a _______ technology that connects devices (called gadgets) ina small area. A) wired LAN B) wirelessLAN C) VLAN D) none of the above
Last Answer : wirelessLAN
Description : Bluetooth is an example of __________ a) personal area network b) local area network c) virtual private network d) wide area network
Last Answer : a) personal area network
Description : Anyway to unlock an Iphone 3GS with the latest baseband?
Last Answer : answer:
Description : Data is directly on the transmission cable. A. Asynchronous B. Synchronous C. Baseband D. Broadband
Last Answer : C. Baseband
Description : Ethernet is baseband system using CSMA/CD operating at A. 20 Mbps B. 10 Mbps C. 30 Mbps D. 40 Mbps
Last Answer : B. 10 Mbps
Description : Which of the following is not a baseband signal modulation? A. RF carrier B. Video System C. Audio signal D. Binary coded pulses
Last Answer : A. RF carrier
Description : Multiplexing scheme use by baseband transmission. A. FDM B. Space multiplexing C. TDM D. Statistical multiplexing
Last Answer : C. TDM
Description : What is the baseband frequency of standard FDM basic supergroup? A. 312 to 552 kHz B. 300 to 600 kHz C. 60 to 2540 kHz D. 60 to 108 kHz
Last Answer : A. 312 to 552 kHz
Description : What is a baseband communication channel like?
Last Answer : A party line
Description : Ethernet is baseband transmission system designed by _____
Last Answer : Robert Metcalfe and David Boggs
Description : Which of the following is not a characteristic of Cdma2000? a) Adaptable baseband signalling rates b) Adaptable baseband chipping rates c) Multicarrier technologies d) OFDMA
Last Answer : d) OFDMA
Description : Describe how dialed digits are transferred from a subscriber’s telephone tothe local exchange?
Last Answer : dbbrkm