Description : In the _____ method, time isdivided into intervals. In each interval, a reservation frameprecedes the dataframes sent in that interval. A) reservation B) polling C) token passing D) none of the above
Last Answer : reservation
Description : Inthe _________ method, a special packet called a ______ circulates through the ring. A) reservation: control frame B) polling: poll request C) token passing: token D) none of the above
Last Answer : token passing: token
Description : In the _______ method, each station has a predecessorand a successor. A) reservation B) polling C) token passing D) none of the above
Last Answer : token passing
Description : In the _______ method, thestations in a network areorganizedin a logical ring. A) reservation B) polling C) token passing D) none of the above
Description : In the _______ method, the primary device controls the link; thesecondary devices follow its instructions. A) reservation B) polling C) token passing D) none of the above
Last Answer : polling
Description : In the ______ method, all dataexchanges mustbe made throughthe primarydevice even when theultimate destinationis a secondary device. A) reservation B) polling C) token passing D) none of the above
Description : In distributed systems, link and site failure is detected by ___________ a) polling b) handshaking c) token passing d) none of the mentioned
Last Answer : handshaking
Description : The Token Ring implementation works on the __ mode. A. Contention B. Reservation C. Round Robin D. None
Last Answer : C. Round Robin
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
Description : In OSI network architecture, the dialogue control and token management are responsibility of a. session layer b. network layer c. transport layer d. data link layer e. none of above
Last Answer : session layer
Description : In OSI network architecture, the dialogue control and token management are responsibility of a. session layer b. network layer c. transport layer d. data link layer
Last Answer : a. session layer
Description : ________ requires that each station first listento the medium before sending. A) MA B) CSMA C) FDMA D) CDMA
Last Answer : CSMA
Description : Transmission system for a multidrop network A. Taken passing B. Polling C. Switching D. CSMA/CD
Last Answer : B. Polling
Description : ______ is the most widelyused local area networkprotocol. A) Token Ring B) Token Bus C) Ethernet D) none of the above
Last Answer : Ethernet
Description : The _____ houses the switches in token ring. A. transceiver B. nine-pin connector C. MAU D. NIC E. None of the above
Last Answer : MAU
Description : Find out the OSI layer, which performs token management. A) Network Layer B) Transport Layer C) Session Layer D) Presentation Layer
Last Answer : C) Session Layer
Description : In a token ring network the transmission speed is 10^7 bps and the propagation speed is 200 metres/micro second. The 1- bit delay in this network is equivalent to: a. 500 metres of cable. b. 200 metres of cable. c. 20 metres of cable. d. 50 metres of cable
Last Answer : c. 20 metres of cable.
Description : In which topology, if a computer’s network cable is broken, whole network goes down. a. Ring b. Star c. Bus d. token ring
Last Answer : c. Bus
Description : Terminators are used in which topology? a. Bus b. Star c. Ring d. token ring
Last Answer : a. Bus
Description : State weather the following statement is true or false for Token Bus 1).It is a linear or tree- shaped cable onto which the stations are attached. 2). the token propagates around the logical ring, with only the token holder ... 3. false C. 1. false, 2. false, 3. false D. 1. true, 2. true, 3. false
Last Answer : D. 1. true, 2. true, 3. false
Description : Explain the frame format for token ring and token bus
Last Answer : Access method: Token passing _ Priority and reservation _ Time limits _ Monitor stations
Description : What is the advantage of FDDI over a basic Token Ring?
Last Answer : Fiber distributed Data Interface. A high speed token ring networking technology designed to run over optical fiber. FDDI is able to tolerate a single break in the cable or failure of one station due ... token before it is allowed to transmit. 802.5 and FDDI are examples of token ring networks.
Description : When one stations is designated as master and rest of the stations are considered slaves message handling is ________. A. polling B. WAN C. LAN D. OSI
Last Answer : A. polling
Description : A device is sending out data at the rate of 2000 bps. How long does it take to send a file of 1,00,000 characters ? a. 50 b. 200 c. 400 d. 800
Last Answer : c. 400
Description : The modes of a MAC to share a transmission medium are ___. A. Round Robin B. Reservation C. Contention D. All the above
Last Answer : A. Round Robin
Description : Transport layer aggregates data from different applications into a single stream before passing it to ____________ a. network layer b. data link layer c. application layer d. physical layer
Last Answer : a. network layer
Description : Transport layer aggregates data from different applications into a single stream before passing it to ____________ A. network layer B. data link layer C. application layer D. physical layer
Last Answer : A. network layer
Description : On return of the carrier to the HO ________ should be examine the dairy or book of the carrier to see that a receipt for the remittance has been obtained by him and initial it with date in ... the examination. a) Head Postmaster b) Sub account assistant c) Treasurer d) Any senior of the branch
Last Answer : c) Treasurer
Description : Which of the following is NOT true about User Datagram Protocol in transport layer? a. Works well in unidirectional communication, suitable for broadcast information. b. It does three way ... File System d. The lack of retransmission delays makes it suitable for real-time applications
Last Answer : b. It does three way handshake before sending datagrams
Description : The required resources for communication between end systems are reserved for the duration of the session between end systems in ________ method. a) Packet switching b) Circuit switching c) Line switching d) Frequency switching
Last Answer : b) Circuit switching
Description : Inthe _______method, after thestation finds the line idle it sends or refrainfrom sending based on the outcome ofa random number generator. If the line is busy, it tries again A) nonpersistent B) 1-persistent C) p-persistent D) none of the above
Last Answer : p-persistent
Description : Inthe _________ protocol weavoid unnecessary transmissionby sending only frames that are corrupted. A) Stop-and-Wait ARQ B) Go-Back-N ARQ C) Selective-Repeat ARQ D) none of the above
Last Answer : Selective-Repeat ARQ
Description : A _______ message tells an upstream router to start sending multicast messages for a specific groupthrough aspecific router. A) weed B) graft C) prune D) none of the above
Last Answer : graft
Description : A _______ message tells an upstream router to stop sending multicast messages for a specific group through aspecific router. A) weed B) graft C) prune D) none of the above
Last Answer : prune
Description : Sending afile from your personal computer's primary memory or disk to another computer is called A. uploading B. downloading C. logging on D. hang on E. None of the above
Last Answer : uploading
Description : Which of the following system calls results in the sending of SYN packets? a. socket b. bind c. listen d. connect
Last Answer : d. connect
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 : In open-loop control, policies are applied to __________ A. Remove after congestion occurs B. Remove after sometime C. Prevent before congestion occurs D. Prevent before sending packets
Last Answer : C. Prevent before congestion occurs
Description : The ________ rate defines thenumber of dataelements sent in1s; the______ rate is the numberof signalelements sent in 1s. A) data; signal B) signal; data C) baud; bit D) none of the above
Last Answer : data; signal
Description : The ________ modeprovides synchronizationfor the entire stream of bits must. In other words, it guarantees that the data arrive ata fixed rate. A) synchronous B) asynchronous C) isochronous D) none of the above
Last Answer : isochronous
Description : Data canbe ________. A) analog B) digital C) (a) or (b) D) none of the above
Last Answer : (a) or (b)
Description : The routing processor of arouter performs the ________ layer functions of therouter. A) physical and data link B) network C) transport D) none of the above
Last Answer : network
Description : The inputand output portsof a router perform the ________ layer functions of therouter. A) physical and data link B) network C) transport D) none of the above
Last Answer : physical and data link
Description : ________ will answer questions youdid not think to ask of your data. A) data mining B) data extrapolation C) knowledgediscovery D) data enlightenment
Last Answer : knowledgediscovery
Description : A ________ is a set of rules that governs data communication. A) forum B) protocol C) standard D) none of the above
Last Answer : protocol
Description : In FTP, the well-known port ____ is used for the control connection and the well-known port ________ for the data connection A. 21; 22 B. 21; 20 C. 20; 21 D. none of the above
Last Answer : B. 21; 20
Description : HTTP is ________ protocol. a) application layer b) transport layer c) network layer d) data link layer
Last Answer : a) application layer
Description : Data communication system spanning states, countries, or the whole world is ________ a) LAN b) WAN c) MAN d) PAN
Last Answer : b) WAN
Description : An annuity is a series of equal payments occuring at equal time intervals, and this amount includes the sum of all payments plus interest, if allowed to accumulate at a definite rate of interest from ... cost (B) Depreciation by sinking fund method (C) Discrete compound interest (D) Cash ratio
Last Answer : (B) Depreciation by sinking fund method