Description : - MAC is to Ethernet what ________ is to Frame Relay. A. DLCI B. LCI C. PVC D. None of the above
Last Answer : DLCI
Description : The HFC network uses _______ cable. A) twisted-pair B) coaxial C) fiber-optic D) acombination of (b) and (c)
Last Answer : fiber-optic
Description : In ATM,_____ is for conventionalpacket switching(virtual-circuit approachor datagram approach). A) AAL1 B) AAL2 C) AAL3/4 D) AAL5
Last Answer : AAL3/4
Description : ________ is a virtual-circuit wide-area network that was designed in response to demands fora new type of WAN in thelate1980s and early 1990s. A) X.25 B) Frame Relay C) ATM D) none of the above
Last Answer : Frame Relay
Description : In ATM, connection between two endpoints is accomplishedthrough_______. A) TPs B) VPs C) VCs D) all of theabove
Last Answer : all of theabove
Description : A virtual local areanetwork (VLAN) is configured by _________. A) software B) physical wiring C) hardware D) none of the abov
Last Answer : software
Description : A _________ network is across between a circuit-switchednetworkand a datagram network. It has some characteristics ofboth. A) virtual-circuit B) packet-switched C) frame-switched D) none of the above
Last Answer : virtual-circui
Description : Congestion control can control traffic entry into a telecommunications network, so to avoid _________ a. Congestive connection b. Connection collapse c. Congestive collapse d. Collapse congestive
Last Answer : c. Congestive collapse
Description : ___ is an involuntary exit forced on the VCI as a result totally failed investment. (a) Liquidation b) liability c) none)
Last Answer : (a) Liquidation
Description : _______ is the information contained in the packet header of TIU. a) PTI b) VCI c) PRMA d) CDPD
Last Answer : b) VCI
Description : In ATM,______ is for packets requiring no sequencing and noerror control mechanism. A) AAL1 B) AAL2 C) AAL3/4 D) AAL5
Last Answer : AAL5
Description : In ATM,_______is for short packets. A) AAL1 B) AAL2 C) AAL3/4 D) AAL5
Last Answer : AAL2
Description : In ATM,______ is for constant-bit-ratedata. A) AAL1 B) AAL2 C) AAL3/4 D) AAL5
Last Answer : AAL1
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 : In ATM, the ______ layerprovides routing, traffic management, switching, and multiplexing services. A) physical B) ATM C) AAL D) none of the above
Last Answer : ATM
Description : In ATM, the _______layeraccepts transmissions from upper-layer servicesand maps them into ATM cells. A) physical B) ATM C) AAL D) none of the above
Last Answer : AAL
Description : _________is the interface between two ATM switches. A) UNI B) NNI C) NNN D) none of the above
Last Answer : NNI
Description : A(n) ______ is theinterface between auser and an ATM switch. A) UNI B) NNI C) NNN D) None of the above
Last Answer : UNI
Description : ______ eliminates the varying delay times associated withdifferent-size packets. A) X.25 B) Frame Relay C) ATM D) all of theabove
Description : The ATM data packet is acell composed of ______bytes. A) 40 B) 50 C) 52 D) 53
Last Answer : 53
Description : The ATM standard defines______ layers. A) two B) three C) four D) five
Last Answer : three
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
Description : Choose the Protocols working in the Data Link Control Layer of OSI model below. a. ATM (Asynchronous Transfer Mode), Frame Relay b. HDLC (High Level Data Link Control), SDLC (Synchronous Data Link Control) c. ARP (Address Resolution Protocol), IEEE802.3 d. All the above
Last Answer : d. All the above
Description : The temperature at which the vapor pressure exactly equals one atm is called _________. a. boiling temperature b. normal boiling point c. triple point d. point of infliction
Last Answer : normal boiling point
Description : The network layer in the Internet isdesigned as a __________network. A) virtual-circuit B) datagram C) circuit-switched D) none of the above
Last Answer : datagram
Description : In a ________ network, twotypes of addressing are involved: global and local. A) virtual-circuit B) datagram C) circuit-switched D) none of the above
Last Answer : virtual-circuit
Description : A switched WAN is normally implemented as a _______ network. A) virtual-circuit B) datagram C) circuit-switched D) none of the above
Description : Packet-switched networks can alsobe divided into ______subcategories: virtual-circuit networks and datagram networks A) four B) three C) two D) five
Last Answer : two
Description : Intranetsand extranets can use their network fire walls andother security features to establish secureInternet links within an enterpriseor with its trading partners. Select the best fit for answer: A. Network Server B. Virtual Private Network C. Networkoperating system D. OS
Last Answer : Virtual Private Network
Description : The name of the protocol which provides virtual terminal in TCP/IP model is. A) Telnet B) SMTP C) HTTP
Last Answer : A) Telnet
Description : Which of the following is an application layer service? A) Network virtual terminal B) File transfer, access and management C) Mail service D) All of the above
Last Answer : C) Mail service
Description : Sometimes, Session layer is also called ______ layer a. Virtual layer b. Port layer c. Segmentation layer d. Process layer
Last Answer : b. Port layer
Description : Which of the following routing technique / techniques is / are used in distributed systems ? A. Fixed Routing B. Virtual Routing C. Dynamic Routing a. A Only b. A and B only c. C only d. All A,B,C
Last Answer : a. A Only
Description : In virtual circuit network each packet contains ___________ a. full source and destination address b. a short VC number c. only source address d. only destination address
Last Answer : b. a short VC number
Description : State weather the following statement is true or false for Internetwork layer. 1).Other internetwork-layer protocols are IP, ICMP, IGMP, ARP, and RARP. 2). Internet Protocol (IP) is the least important protocol in this layer ... 3.true C. 1. false, 2. false, 3. false D. 1. true, 2. true, 3. false
Last Answer : B. 1. true, 2. false, 3.true
Description : In virtual circuit network each packet contains ___________ A. full source and destination address B. a short VC number C. only source address D. only destination address
Last Answer : B. a short VC number
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 : The network layer in the Internet is designed as anetwork. a. datagram b. none c. virtual-circuit d. circuit-switched
Last Answer : a. datagram
Description : A network is a cross between a circuit-switched network and a datagram network. It has some characteristics of both. a. virtual-circuit b. packet-switched c. None of the Given d. frame-switched
Last Answer : a. virtual-circuit
Description : Differentiate switched virtual circuit and Permanent virtual circuit.
Last Answer : Switched virtual circuit format is comparable conceptually to dial-up line in circuit switching. In this method, a virtual circuit is created whenever it is needed and exits only for the duration of ... provided between two uses on a continuous basis. The circuit is dedicated to the specific uses.
Description : What is a virtual circuit?
Last Answer : A logical circuit made between the sending and receiving computers. The connection is made after both computers do handshaking. After the connection, all packets follow the same route and arrive in sequence.
Description : What type of network device allows youto share your connection to the Internet with other computers in your home? A) Ethernet card B) NIC C) Router D) Cat 5
Last Answer : Router
Description : What term is used to describe two or more computers that are linkedto eachother? A) Star connection B) Computer system C) Computer network D) Net
Last Answer : Computer network
Description : In ________ TDM, each input connection hasan allotment in the outputeven if it is not sendingdata. A) synchronous B) statistical C) isochronous D) none of the above
Last Answer : synchronous
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 : In a ________ connection, three or more devices share a link. A) multipoint B) point-to-point C) (a) and(b) D) none of the above
Last Answer : multipoint
Description : In a ______ connection, twoand only two devicesare connected bya dedicated link. A) multipoint B) point-to-point C) (a) and(b) D) none of the above
Last Answer : point-to-point
Description : Which agency developed standards forphysical connection interfaces and electronic signalingspecifications? A) EIA B) ITU-T C) ANSI D) ISO
Last Answer : EIA
Description : In a _______ connection, more thantwo devices can share asingle link. A) point-to-point B) multipoint C) primary D) secondary
Description : Which topology requires a multipoint connection? A) Mesh B) Star C) Bus D) Ring
Last Answer : Bus