Description : In IPv4 header, an HLEN value of decimal 10 means_______. A) there are 10bytes ofoptions B) there are 40bytes ofoptions C) there are 10bytes inthe header D) thereare 40 bytes in the header
Last Answer : thereare 40 bytes in the header
Description : A byte is a string of _____bits: a) two b) ten c) eight d) None of The Above
Last Answer : c) eight
Description : The ________ between two words is the number ofdifferences between corresponding bits. A) Hamming code B) Hamming distance C) Hamming rule D) none of the above
Last Answer : Hamming distance
Description : ______ is the cell relay protocol designed by the corresponding Forum and adopted by the ITU-T. A) X.25 B) Frame Relay C) ATM D) none of the above
Last Answer : ATM
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 : Which form of byte assigning strategy is adopted in class B type of network corresponding to IP addresses? a. Network.Node.Node.Node b. Network.Network.Node.Node c. Network.Network.Network.Node d. Network.Node.Node.Node
Last Answer : b. Network.Network.Node.Node
Description : The ________ between two words is the number of differences between corresponding bits A. Hamming code B. Hamming distance C. Hamming rule D. none of the above
Last Answer : B. Hamming distance
Description : The absolute percentage error in the computed discharge over a rectangular weir corresponding to an absolute error of 1.5 % in the measurement of head over the sill of the weir would be : (a) 1.5 (b) 2.25 (c) 2.5 (d) 3.75
Last Answer : (b) 2.25
Description : This modem standard has a speed of 28.8k and has error-correction features. A. V.42 B. V.32bis C. V.90 D. V.34
Last Answer : V.42
Description : An error in computer data is called a. Chip b. Bug c. CPU d. Storage device
Last Answer : Bug
Description : An error in software or hardware is called a bug. What is the alternative computer jargon for it? a. Leech b. Squid c. Slug d. Glitch
Last Answer : Glitch
Description : Machine language is a. Machine dependent b. Difficult to program c. Error prone d. All of above
Last Answer : All of above
Description : Which of the following is associated with error detector? a. Odd parity bit b. Even parity bit c. Both of the above d. None of above
Last Answer : Both of the above
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 : In the Ethernet frame, the_______field contains error detection information. A) CRC B) preamble C) address D) none of the above
Last Answer : CRC
Description : The purpose of the _______is to provide flow and error control for the upper-layer protocols that actually demand theseservices A) MAC B) LLC C) LLU D) none of the above
Last Answer : LLC
Description : _________control inthe datalink layer is based on automatic repeat request, which is the retransmission of data. A) Flow B) Error C) Transmission D) none of the above
Last Answer : Transmission
Description : _______ control refers to aset of proceduresused torestrict the amount ofdata that the sender can send before waiting foracknowledgment. A) Flow B) Error C) Transmission D) none of the above
Last Answer : Flow
Description : The _________Protocol, addsa simple error control mechanism to the _______Protocol. A) Stop-and-Wait ARQ; Stop-and-Wait B) Go-Back-N ARQ; Stop-and-Wait C) Selective Repeat ARQ; Go-Back-N ARQ D) none of the above
Last Answer : Go-Back-N ARQ; Stop-and-Wait
Description : In ________ error correction, the receiver asks thesender tosend thedata again. A) backward B) retransmission C) forward D) none of the above
Last Answer : retransmission
Description : In ________ error correction, the receiver correctserrors without requestingretransmission. A) backward B) onward C) forward D) none of the above
Last Answer : forward
Description : A burst error means that two or more bits in the dataunit havechanged. A) double-bit B) burst C) single-bit D) none of the above
Last Answer : burst
Description : Which error detection method consists of just one redundant bit per data unit? A) Simple parity check B) Two-dimensionalparity check C) CRC D) Checksum
Last Answer : Simple parity check
Description : Which error detection method usesone's complement arithmetic? A) Simple parity check B) Two-dimensionalparity check C) CRC D) Checksum
Last Answer : Checksum
Description : Block coding can help in _______at the receiver. A) Synchronization B) Error detection C) Attenuation D) (a) and (b)
Last Answer : (a) and (b)
Description : At the data link layer, Frame Relayusesa protocol that supports _____control. A) flow B) error C) either (a) or (b D) neither (a) nor (b)
Last Answer : neither (a) nor (b)
Description : The term ________ means that IP provides no error checking or tracking. IP assumes the unreliabilityof the underlying layers and does its best to get a transmission throughto its destination,but with ... ) reliable delivery B) connection-oriented delivery C) best-effort delivery D) noneof the above
Last Answer : best-effort delivery
Description : A best-effort delivery service suchas IPv4 includes _______. A) error checking B) error correction C) datagram acknowledgment D) noneof the above
Last Answer : noneof the above
Description : IGMP is_______protocol. A) an error reporting B) a group management C) a transmission D) noneof the above
Last Answer : a group management
Description : Which of the following is true about ICMP messages? A) An ICMP error message may be generated for an ICMP error message. B) An ICMP error message may be generated only for the first fragment. C) An ICMP error message may be generated for a multicast datagram. D) noneis true
Last Answer : An ICMP error message may be generated only for the first fragmen
Description : Which of the following is true about ICMP messages? A) An ICMP error message may be generated for an ICMP error message. B) An ICMP error message may be generated for each fragment. C) An ICMP error message may be generated for a multicast datagram. D) noneis true
Last Answer : noneis true
Description : ICMP messagesare divided into two broad categories: _____________. A) query and error reporting messages B) request and response messages C) request and reply messages D) noneof the above
Last Answer : query and error reporting messages
Description : When thepointer is positioned on a“““.it is shaped likea hand. (A) grammar error (B) Formatting error (C) Screen Tip (D) Spellingerror (E) hyperlink
Last Answer : hyperlink
Description : Error rate is A. an error-detectingcode based ona summation operation performed onthebits to be checked. B. a checkbit appended to anarrayof binary digits to make thesum of all thebinary digits. C. a ... ratioof the number ofdata units in error to the total number of dataunits E. None of the above
Last Answer : the ratioof the number ofdata units in error to the total number of dataunits
Description : Error detection ata data link level is achieved by A. bit stuffing B. cyclic redundancy codes C. Hamming codes D. equalization
Last Answer : cyclic redundancy codes
Description : HMP (Host Monitoring Protocol) is: A. a TCP/IP protocol used todynamically bind ahigh level IP Address to alow-level physical hardware address B. a TCP/IP high level protocol for transferring ... used to monitor computers D. a protocol that handles error andcontrol messages E. None of the above
Last Answer : a protocol used to monitor computers
Description : An error-detectingcode inserted asa field in a blockof data tobe transmitted is known as A. Frame check sequence B. Error detecting code C. Checksum D. flow control E. None of the above
Last Answer : Frame check sequence
Description : Which of the following refers to theterms "residual error rate"? A. the number of biterrors per twenty four hours of continuous operation onanasynchronous line B. The probability that one or moreerrors ... tonoise ratio dividedby the ratio of energy perbit to noise per hertz E. None of the above
Last Answer : The probability that one or moreerrors will be undetected whenan error detection scheme is used
Description : ICMP (Internet Control Message Protocol) is A. a TCP/IP protocol used todynamically bind ahigh level IP Address to alow-level physical hardware address B. a TCP/IP high level protocol for transferring ... to monitor computers D. a protocol that handles error andcontrol messages E. None of the above
Last Answer : a protocol that handles error andcontrol messages
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 : Which of the following is not a disadvantage of wireless LAN? A. Slower data transmission B. higher error rate C. interference of transmissions from different computers D. All of theabove
Description : The probability thata singlebit will be inerror on a typical public telephone lineusing 4800 bps modem is 10 to the power -3. If no error detection mechanism is used, the residual error ratefor a communicationline using 9-bit frames is ... to A. 0.003 B. 0.009 C. 0.991 D. 0.999 E. None of the above
Last Answer : 0.009
Description : The layer of OSI model can use the trailer of the frame for error detection. A) Physical B) Data link C) Transport D) Presentation
Last Answer : A) Physical
Description : SSL is not responsible for a. Mutual authentication of client & server b. Secret communication c. Data Integrity protection d. Error detection and correction
Last Answer : d. Error detection and correction
Description : Silly Window Syndrome is related to a. Error during transmission b. File transfer protocol c. Degrade in TCP performance d. Interface problem
Last Answer : c. Degrade in TCP performance
Description : Using which method in transport layer data integrity can be ensured? a. Checksum b. Repetition codes c. Cyclic redundancy checks d. Error correcting codes
Last Answer : a. Checksum
Description : Which services are provided by transport layer? a. Error control b. Connection service c. Connection less service d. Congestion control
Last Answer : a. Error control
Description : What are the problems involved in an IP Fragmentation Process? A. Loss of any fragment results in rejection of all datagrams B. Management of buffer space is essential to handle reassembly process C. No necessity of initializing ... -oriented IP service a. A & B b. C & D c. B& C d. A & D
Last Answer : a. A & B
Description : ICMP is primarily used for __________ a. error and diagnostic functions b. addressing c. forwarding d. routing
Last Answer : a. error and diagnostic functions
Description : Which one of the following is not a function of network layer? a. routing b. inter-networking c. congestion control d. error contro
Last Answer : d. error control