Description : What is the minimum number of wires needed to send data over a serial communication link layer? a. 1 b. 2 c. 4 d. 6 e. none of above
Last Answer : 2
Description : How many 8-bit characters can be transmitted per second over a 9600 baud serial communication link using asynchronous mode of transmission with one start bit, eight data bits, two stop bits, and one parity bit ? a. 600 b. 800 c. 876 d. 1200
Last Answer : b. 800
Description : The term 'duplex' refers to theability of the data receiving stations toecho back aconfirming messageto the sender. Infull duplex data transmission, both the sender and the receiver A. cannot talk at once B. can ... data one ata time D. can do one way data transmission only E. None of the above
Last Answer : can do one way data transmission only
Description : When does the station B send a positive acknowledgement (ACK) to station A in Stop and Wait protocol? a. only when no error occurs at the transmission level b. when retransmission of old packet in a novel frame is necessary c. only when station B receives frame with errors d. all of the above
Last Answer : only when no error occurs at the transmission level
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 : In_________ transmission, we send bits oneafter another without startor stop bits or gaps. It is the responsibilityof the receiver togroup the bits. A) synchronous B) asynchronous C) isochronous D) none of the abov
Last Answer : synchronous
Description : In Selective Repeat ARQ, if 5 is the number ofbits for the sequence number, then the maximum size of the send window must be _____ A) 15 B) 16 C) 31 D) 1
Last Answer : 16
Description : In Go-Back-N ARQ, if 5 is the number of bits for thesequencenumber, then the maximum size of the send window must be _____ A) 15 B) 16 C) 31 D) 1
Last Answer : 31
Description : Specialization Lattice stands for (A) An entity type can participate as a subclass in only one specialization. (B) An entity type can participate as a subclass in more than one specialization. ... can participate in one specialization. (D) An entity type that can participate in one generalization.
Last Answer : (B) An entity type can participate as a subclass in more than one specialization.
Description : In asynchronous serial communication the physical layer provides ___________ a. start and stop signalling b. flow control c. both start & stop signalling and flow control d. only start signalling
Last Answer : c. both start & stop signalling and flow control
Description : In ATM, the _____ layer defines thetransmission medium,bit transmission,encoding, and electrical-to-optical transformation. A) physical B) ATM layer C) AAL D) none of the above
Last Answer : physical
Description : Suppose transmission rate of a channel is 32 kbps. If there are ‘8’ routes from source to destination and each packet p contains 8000 bits. Total end to end delay in sending packet P is _____. a. 2 sec b. 3 sec c. 4 sec d. 1 sec
Last Answer : a. 2 sec
Description : When 2 or more bits in a data unit has been changed during the transmission, the error is called _____ a. random error b. burst error c. inverted error d. double error
Last Answer : b. burst error
Description : Consider a source computer(S) transmitting a file of size 106 bits to a destination computer (D)over a network of two routers (R1 and R2) and three links(L1, L2, and L3). L1connects S to R1; L2 connects R1 to ... file from S to D? a. 1005 ms b. 1010 ms c. 3000 ms d. 3003 ms Answer: Option(a)
Last Answer : a. 1005 ms
Description : Most abundant Ig G subclass in the serum is (A) Ig G1 (B) Ig G2 (C) Ig G3 (D) Ig G4
Last Answer : Answer : A
Description : Lice are categorized in subclass as: B A. Apterygota B. Exopterygota C. Endopterygota D. None of these
Last Answer : Exopterygota
Description : Larvae of subclass monogenea are A A. Similar in appearance to adult B. Different in appearance to adults C. Miniature of mature tapeworm D. None
Last Answer : Similar in appearance to adult
Description : Subclass is also called: a) Base Class b) Child Class c) Derived Class and Super Class d) Child Class and Derived Class e) None of The Above
Last Answer : d) Child Class and Derived Class
Description : Are constructors inherited? Can a subclass call the parent's class constructor? When?
Last Answer : Ans. You cannot inherit a constructor. That is, you cannot create a instance of a subclass using a constructor of one of it's superclasses. One of the main reasons is because ... developer the ability to override a superclasses constructor you would erode the encapsulation abilities of the language.
Description : ________ which is a subclass of a linear programming problem(LPP) a. Programming problem b. Transportation problem c. Computer problem d. All of the above
Last Answer : b. Transportation problem
Description : A ………………. Is a class whose instances themselves are classes. A) Subclass B) Abstract Class C) Meta Class D) Object Class
Last Answer : C) Meta Class
Description : When a method in a subclass has the same name and type signatures as a method in the superclass, then the method in the subclass .................. the method in the superclass. (A) Overloads (B) Friendships (C) Inherits (D) Overrides
Last Answer : (D) Overrides
Description : How many bytes of data can be sent in 15 seconds over a serial link with baud rate of 9600 in asynchronous mode with odd parity and two stop bits in the frame? a. 10,000 bytes b. 12,000 bytes c. 15,000 bytes d. 27,000 bytes
Last Answer : b. 12,000 bytes
Description : While transferring files between server and client, if the transmission rates along the path is 10Mbps, 20Mbps, 30Mbps, 40Mbps. The throughput is usually a. 20Mbps b. 10Mbps c. 40Mbps d. 50Mbps
Last Answer : b. 10Mbps
Description : What would be the proper command to set a DCE clock rate of 56k for a serial interface? A. Router (config) # clockrate 56000 B. Router# clockrate 56000. C. Router (config-if) #clock rate 56000 D. Router (config-if) # clockrate 56k
Last Answer : Router (config-if) #clock rate 56000
Description : A storage device whe3re the access time is depended upon the location of the data is a. Random access b. Serial access c. Sequential access d. Transaction access
Last Answer : Serial access
Description : A kind of serial dot-matrix printer that forms characters with magnetically-charged ink sprayed dots is called a. Laser printer b. Ink-jet printer c. Drum printer d. Chan printer
Last Answer : Ink-jet printer
Description : The system unit of a personal computer typically contains all of the following except: a. Microprocessor b. Disk controller c. Serial interface d. Modem
Last Answer : Modem
Description : Which data communication method is used to transmit the data over a serial communication link? a. simplex b. half-duplex c. full-duplex d. b and c e. None of above
Last Answer : full-duplex
Description : What is the number of separate protocol layers at the serial interface gateway specified by the X.25 standard? a. 4 b. 2 c. 6 d. 3 3. none of the above
Last Answer : 3
Description : In_______transmission, astartbit and a stopbit frame a character byte. A) asynchronous serial B) synchronous serial C) parallel D) (a) and (b)
Last Answer : asynchronous serial
Description : In_______transmission, bits aretransmittedover asingle wire, one ata time. A) asynchronous serial B) synchronous serial C) parallel D) (a) and (b)
Last Answer : (a) and (b)
Description : In_______transmission, bits aretransmittedsimultaneously,each across its own wire. A) Asynchronous serial B) Synchronous serial C) Parallel D) (a) and (b)
Last Answer : Parallel
Description : Which is the protocol that maps varying IP addresses to the Physical MAC Address of a machine in a LAN network? a. ARQ (Automatic Repeat Request) b. ARP (Address Resolution Protocol) c. SLIP (Serial Line Internet Protocol) d. PLIP (Parallel Line Internet Protocol)
Last Answer : b. ARP (Address Resolution Protocol)
Description : SLIP stands for………………………….. A. Syncronous Level Interface Protocol B. Serial Line Interface Protocol C. Syncronous Level Internet Protocol D. Serial Line Internet Protocol
Last Answer : D. Serial Line Internet Protocol
Description : Which is the protocol that maps varying IP addresses to the Physical MAC Address of a machine in a LAN network? A. ARQ Automatic Repeat Request B. ARP Address Resolution Protocol C. SLIP Serial Line Internet Protocol D. PLIP Parallel Line Internet Protocol
Last Answer : B. ARP Address Resolution Protocol
Description : Transmission control protocol ___________ a. is a connection-oriented protocol b. uses a three way handshake to establish a connection c. receives data from application as a single stream d. all of the mentioned
Last Answer : d. all of the mentioned
Description : Transmission control protocol is a) connection oriented protocol b) uses a three way handshake to establish a connection c) recievs data from application as a single stream d) all of the mentioned
Last Answer : d) all of the mentioned
Description : In__________, eachstation is forced to send only at the beginning of the time slot. A) pure ALOHA B) slotted ALOHA C) both (a) and (b) D) neither (a) nor (b)
Last Answer : slotted ALOHA
Description : . If there is only one station with a packet to send, this guarantees that there will ………….. For that packet. A. never be a collision B. be a collision C. be an improvement D. direction
Last Answer : A. never be a collision
Description : I really want to register as a serial friend, but I can only do so with a caller ID. If anyone would be so kind as to send an invitation here to my email address [email protected]
Last Answer : answer:
Description : Blabla
Description : Hi! Can someone send me an invitation to a serial friend? Email address: [email protected] Thank you in advance! :)
Last Answer : If I see you right, someone has already sent you. : D
Description : Which of the following inert gas(es) form(s) clathrate compoud(s) with quinol?
Last Answer : Which of the following inert gas(es) form(s) clathrate compoud(s) with quinol? A. (A) Helium B. (B) Xenon C. (C) Krypton D. Neon
Description : Match List I (Industries) with List II (Important Centers) and select the correct answer using the code given below : L i st I L i st I I (I n dust r i es) (I m por t an t Cent er s) A. Cotton textile I. Ludhiana B. Hosiery II. ... I, C-II, D-III (3) A-III, B-II, C-I, D-IV (4) A-III, B-I, C-II, D-IV
Last Answer : (4) A-III, B-I, C-II, D-IV
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 : Which ARQ mechanism deals with the transmission of only damaged or lost frames despite the other multiple frames by increasing the efficiency & its utility in noisy channels? a. GoBackN ARQ b. Selective Repeat ARQ c. StopandWait ARQ d. All of the above
Last Answer : b. Selective Repeat ARQ
Description : State weather the following statement is true or false for Stream Control Transmission Protocol (SCTP). 1). SCTP uses only few known ports in the TCP space. 2).SCTP is a new transport protocol at the same layer as TCP and ... , 3. false C. 1. false, 2. false, 3. false D. 1.false, 2. true, 3. true
Last Answer : D. 1.false, 2. true, 3. true