Description : .______ is a collection of WLAN communication standards. A. IEEE 802.3 B. IEEE 802.11 C. IEEE 802.16 D. IEEE 802.15.4
Last Answer : B. IEEE 802.11
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
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
Description : What is the full form of WLAN? a) Wide Local Area Network b) Wireless Local Area Network c) Wireless Land Access Network d) Wireless Local Area Node
Last Answer : b) Wireless Local Area Network
Description : Which of the following WLAN standard has been named Wi-Fi? a) IEEE 802.6 b) IEEE 802.15.4 c) DSSS IEEE 802.11b d) IEEE 802.11g
Last Answer : c) DSSS IEEE 802.11b
Description : Which of the following is not a standard of WLAN? a) HIPER-LAN b) HIPERLAN/2 c) IEEE 802.11b d) AMPS
Last Answer : d) AMPS
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 start and stop bits are used in serial communication for (A) error detection (B) error correction (C) synchronization (D) slowing down the communication
Last Answer : (C) synchronization
Description : Perceptron learning, Delta learning and LMS learning are learning methods which falls under the category of (A) Error correction learning – learning with a teacher (B) Reinforcement learning – learning with a critic (C) Hebbian learning (D) Competitive learning – learning without a teacher
Last Answer : (A) Error correction learning – learning with a teacher
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 : 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
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
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
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
Description : ____ is a collection of wireless broadband standards (WiMax). A. IEEE 802.3 B. IEEE 802.11 C. IEEE 802.16 D. IEEE 802.15.4
Last Answer : C. IEEE 802.16
Description : The price of WLAN hardware is more than 3G telephones and fixed wireless equipment. a) True b) False
Last Answer : b) False
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 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
Description : When an array is passed as parameter to a function, which of the following statements is correct ? (A) The function can change values in the original array. (B) In C, parameters are passed by value, ... . (D) Results in a run time error when the function tries to access the elements in the array.
Last Answer : (A) The function can change values in the original array.
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
Description : What is the output when following code is executed ? >>>list1 = [11, 2, 23] >>>list2 = [11, 2, 2] >>>list1 < list2 is a) True b) False c) Error d) None
Description : What is the output of the following? print("xyyzxyzxzxyy".count('xyy', 2, 11)) a) 2 b) 0 c) 1 d) error
Last Answer : b) 0
Description : What is the output of the following? i = 5 while True: if i%0O9 == 0: break print(i) i += 1 a) 5 6 7 8 b) 5 6 7 8 9 c) 5 6 7 8 9 10 11 12 13 14 15 …. d) error
Last Answer : d) error
Description : What is the output of the following? i = 1 Page No 11 while True: if i%3 == 0: break print(i) i + = 1 a) 1 2 b) 1 2 3 c) error d) none of the mentioned
Last Answer : c) error
Description : In a demand paging memory system, page table is held in registers. The time taken to service a page fault is 8 m.sec. if an empty frame is available or if the replaced page is not modified, and it takes 20 m.secs., if the replaced ... ? (A) 11.6 m.sec. (B) 16.4 m.sec. (C) 28 m.sec. (D) 14 m.sec.
Last Answer : (B) 16.4 m.sec.
Description : Changing the relationship with and services provided to customers in such a way that they will not think of changing suppliers is called …………. A) Lock in customers B) Lock out customers C) Lock in competitors D) Lock out competitors
Last Answer : A) Lock in customers
Description : ECE Board Exam March 1996 Passive crossover components cause some frequencies to be delayed with respect to the other frequencies at the crossover point. A. Phase shift B. Phase correction C. Phase-error correction D. Time alignment
Last Answer : A. Phase shift
Description : In which testing strategy requirements established during requirements analysis are validated against developed software? (A) Validation testing (B) Integration testing (C) Regression testing (D) System testing
Last Answer : (A) Validation testing
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 : 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 : 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 : …………….. mode is used whenever either end of a security association is gateway. A) Tunnel B) Encapsulating C) Transport D) Gateway
Last Answer : A) Tunnel
Description : The “part-whole”, or “a-part-of”, relationship in which objects representing the components of something associated with an object representing the entire assembly is called as (A) Association (B) Aggregation (C) Encapsulation (D) Generalisation
Last Answer : (B) Aggregation
Description : Which of the following statements is correct? (A) Aggregation is a strong type of association between two classes with full ownership. (B) Aggregation is a strong type of association between two ... ownership. (D) Aggregation is a weak type of association between two classes with full ownership.
Last Answer : (C) Aggregation is a weak type of association between two classes with partial ownership.
Description : Discovery of cross sales opportunities is called as ............... (A) Association (B) Visualization (C) Correlation (D) Segmentation
Last Answer : (A) Association
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
Description : Point out the wrong statement. a) A PaaS service adds integration features, middleware, and other orchestration and choreography services to the IaaS model þÿ
Last Answer : None of the mentioned
Description : Does the broadcom 4322AG 802.11 a b g draft-n wifi card work with aircrack?
Last Answer : answer:This card is currently listed as not compatible with aircrack. http://www.aircrack-ng.org/doku.php?id=compatibility_drivers (But it may be in the future so keep checking for drivers, you’re welcomed to try and install the driver and see if it works but ehhhh don’t recommend it)
Description : What is a good 802.11 N router?
Last Answer : I have a mac and the airport extreme has worked very well for me. I don’t know if you can set it up for PCs though.
Description : Which 802.11 standard can operate at both 2.4 GHz and 5.0 GHz?
Last Answer : Wireless N or 802.11n standard operates in both frequencies. Butit has been ditched to use 802.11a/b/g/ac instead because of speedlimitations of N
Description : I want wifi for my new iPod Touch, what type of 802.11 router do I need: B, G, or N?
Last Answer : You would need a 802.11 G.
Description : IEEE 802.11g, has a datarate of _____Mbps. A) 1 B) 2 C) 11 D) 22
Last Answer : 22
Description : The original IEEE 802.11,has a data rate of _____Mbps. A) 1 B) 6 C) 11 D) 22
Last Answer : 1
Description : The original IEEE 802.11,uses _________. A) FHSS B) DSSS C) OFDM D) either (a)or (b)
Last Answer : either (a)or (b)
Description : . 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 MAC layer framehas ______ fields. A) four B) five C) six D) none of the above
Last Answer : four
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
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