Description : Frame Relay networks offer an optioncalled ______________that sends voice through the network. A) VOFR B) FRAD C) MUX D) none of the above
Last Answer : VOFR
Description : Which protocols adopted the standards of HDLC (High Level Link Control) protocol? a. X.25 protocol as LAPB (Link Access Procedure Balanced, V.42 protocol as LAPM (Link Access Procedure for ... Services Digital Network) protocol as LAPD (Link Access Procedure on D channel) d. All the above
Last Answer : d. All 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
Description : Both Go-Back-N and Selective-Repeat Protocols use a_________. A) sliding frame B) sliding window C) sliding packet D) none of the above
Last Answer : sliding window
Description : Which of the following technique isused for encapsulation? A. a technique used inbest-effort delivery systems toavoid endlessly loopingpackets. B. a technique used by protocols in which a lower level ... network that cannothandle the originaldatagram size D. All of theabove E. None of the above
Last Answer : a technique used by protocols in which a lower level protocol accepts a message from ahigher level protocol and places it in the data portion of the low level frame
Description : Which of the following technique isused for fragment? A. a technique used inbest-effort delivery systems toavoid endlessly loopingpackets B. a technique used by protocols in which a lower level protocol ... network that cannothandle the originaldatagram size D. All of theabove E. None of the above
Last Answer : one of the pieces that results when an IP gateway divides an IP datagram into smallerpieces for transmission acrossa network that cannothandle the originaldatagram size
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 : ______ eliminates the varying delay times associated withdifferent-size packets. A) X.25 B) Frame Relay C) ATM D) all of theabove
Last Answer : ATM
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 : In Frame Relay, the EA field defines thenumber of bytes; it is _____ in the last byte of the address. A) 0 B) 1 C) 2 D) 3
Last Answer : 1
Description : In Frame Relay, an address can be________ bytes. A) only 2 B) 2 to 3 C) 2 to 4 D) none of the above
Last Answer : 2 to 4
Description : Frame Relay has_______. A) only the physical layer B) only thedata link C) the physical and data link layers D) the physical, data link, andnetwork layers
Last Answer : the physical and data link layers
Description : In Frame Relay, when. ______ is selected, it requires establishing andterminatingphases A) a PVC B) an SVC C) either (a) or (b) D) neither (a) nor (b)
Last Answer : an SVC
Description : In Frame Relay, when a _____ is selected, the correspondingtable entry is recorded for all switches by the administrator A) PVC B) SVC C) either (a) or (b) D) neither (a) nor (b)
Last Answer : PVC
Description : VCIs in Frame Relay arecalled ______. A) PVC B) SVC C) DLCIs D) none of the above
Last Answer : DLCIs
Description : Frame Relay provides ________. A) PVCs B) SVCs C) either (a) or (b) D) neither (a) nor (b)
Last Answer : Frame Relay
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
Description : In IPv6,a _______address is usedif aLAN uses the Internet protocols but isnot connected tothe Internet for security reasons. A) link local B) site local C) mapped D) none of the above
Last Answer : link local
Description : The arranging of data in a logical sequence is called a. Sorting b. Classifying c. Reproducing d. Summarizing
Last Answer : Sorting
Description : The carrier that handles inter-LATA services is calleda(n) _______. A) POP B) IXC C) LEC D) none of the above
Last Answer : IXC
Description : Thecarrier that handles intra-LATA services is calleda(n) _____ . A) POP B) IXC C) LEC D) none of the above
Last Answer : LEC
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 : 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 : Inthe _________ method, after the station finds the lineidle, it sends its frame immediately. If the line isnot idle, it continuously senses theline until it finds it idle. A) nonpersistent B) 1-persistent C) p-persistent D) none of the above
Last Answer : 1-persistent
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 : In _________, resources areallocatedon demand. A) datagram switching B) circuit switching C) frame switching D) none of the above
Last Answer : datagram switching
Description : In _________, thereis no resource allocation for a packet. A) datagram switching B) circuit switching C) frame switching D) none of the above
Description : In IPv6, options are inserted between the _________ and the ___________ data A. base header; extension header B. base header; upper-layer data C. base header; frame header D. none of the above
Last Answer : B. base header; upper-layer data
Description : A sender uses the Stop-and-Wait ARQ protocol for reliable transmission of frames. Frames are of size 1000 bytes and the transmission rate at the sender is 80 Kbps (1Kbps = 1000 bits/second). Size of ... is lost, the sender throughput is __________ bytes/second. a. 2500 b. 2000 c. 1500 d. 500
Last Answer : a. 2500
Description : The standard suit of protocols used by the Internet, Intranets, extranets and some other networks. A) TCP/IP B) Protocol C) Open system D) Internet work processor
Last Answer : A) TCP/IP
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 : 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 : The schematic diagram shown in the illustration uses symbol 'A' to represent a/an _________. EL-0011 A. non-renewable fuse link B. circuit breaker coil C. overload relay coil D. thermal overload heater
Last Answer : Answer: D
Description : The IEEE 802.11g, uses _________. A) FHSS B) DSSS C) OFDM D) either (a)or (b)
Last Answer : OFDM
Description : The IEEE 802.11b, uses _________. A) FHSS B) DSSS C) OFDM D) either (a)or (b)
Last Answer : DSSS
Description : The IEEE 802.11a, uses _________. A) FHSS B) DSSS C) OFDM D) either (a)or (b)
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 : _________ uses four twisted pairs. A) 1000Base-SX B) 1000Base-LX C) 1000Base-T D) none of the above
Last Answer : 1000Base-T
Description : _________ uses thin coaxial cable. A) 10Base5 B) 10Base2 C) 10Base-T D) 10Base-F
Last Answer : 10Base2
Description : The _________ routing uses the Dijkstra algorithm to build aroutingtable. A) distancevector B) link state C) path vector D) none of the above
Last Answer : link state
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 : Which of the following layer protocols are responsible for user and theapplicationprogrammesupport such aspasswords, resource sharing, file transfer and network management? A. Layer 7 protocols B. Layer 6 protocols C. Layer 5 protocols D. Layer 4 protocols E. None of the above
Last Answer : Layer 7 protocols
Description : What device separates asingle network into two segmentsbut lets the twosegments appear as one tohigher protocols? A. Switch B. Bridge C. Gateway D. Router
Last Answer : Bridge
Description : Which of the following is used for modulation and demodulation? A. modem B. protocols C. gateway D. multiplexer E. None of the above
Last Answer : modem
Description : Which of the following of the TCP/IP protocols is the used for transferring files from one machine to another? A) FTP B) C) SNMP C) SMTP D) D) Rpe
Last Answer : A) FTP
Description : Which of the transport layer protocols is connectionless? A) UDP B) TCP C) FTP D) Nvt
Last Answer : A) UDP
Description : Which of the following TCP/IP protocols is used for transferring files form one machine to another. A) FTP B) SNMP C) SMTP D) RPC
Description : Which of the following protocols is an application layer protocol that establishes, manages and terminates multimedia sessions ? a. Session Maintenance Protocol b. Real - time Streaming Protocol c. Real - time Transport Control Protocol d. Session Initiation Protocol
Last Answer : d. Session Initiation Protocol
Description : Which of the following protocols is used by email server to maintain a central repository that can be accessed from any machine ? a. POP3 b. IMAP c. SMTP d. DMSP
Last Answer : b. IMAP
Description : Which of the following is/are example(s) of stateful application layer protocols? (i) HTTP (ii) FTP (iii) TCP (iv) POP3 a. (i) and (ii) only b. (ii) and (iii) only c. (ii) and (iv) only d. (iv) only
Last Answer : c. (ii) and (iv) only