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 : 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 : 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 : 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 : _____ is used for transmission of packets in the cellular switched architecture. a) Packet switching techniques b) Circuit switching techniques c) Packet and circuit switched technique d) Datagram technique
Last Answer : a) Packet switching techniques
Description : An IP datagram of size 1000 bytes arrives at a router. The router has to forward this packet on a link whose MTU (maximum transmission unit) is 100 bytes. Assume that the size of the IP header is 20 bytes ... the IP datagram will be divided into for transmission is : a. 10 b. 50 c. 12 d. 13
Last Answer : d. 13
Description : In _________, thereis no resource allocation for a packet. A) datagram switching B) circuit switching C) frame switching D) none of the above
Last Answer : datagram switching
Description : A local telephone network isan example of a_______ network. A) packet-switched B) circuit-switched C) message-switched D) none of the above
Last Answer : circuit-switched
Description : BSNL land line telephone network is an example of a network. A. Packet switched B. Circuit switched C. Bit switched D. Line switched
Last Answer : B. Circuit switched
Description : A local telephone network is an example of a _______ network. a) Packet switched b) Circuit switched c) Bit switched d) Line switched
Last Answer : b) Circuit switched
Description : The required resources for communication between end systems are reserved for theduration of the session between end systems in method. a. Packet switched b. Bit switched c. Line switched d. Circuit switched
Last Answer : d. Circuit switched
Description : A local telephone network is an example of a network. a. Packet switched b. Circuit switched c. Bit switched d. Line switched
Last Answer : b. Circuit switched
Description : SONET defines _______ layers. A) two B) three C) four D) five
Last Answer : four
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 : 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 : Which of the following approaches to switching share networks resource? a. Circuit switching b. Packet switching c. Both A and B d. None of these
Last Answer : b. Packet switching
Description : In........................mode, a common technique in packet-switched networks consists of wrapping a packet in a new one. A) Tunneling B) Encapsulation C) Both A and B D) None of the above
Last Answer : C) Both A and B
Description : In ……………………. mode, a common technique in packet-switched networks consists of wrapping a packet in a new one. A) Tunneling B) Encapsulation C) Both A and B D) None of the above
Description : Which of the following is anecessary part of the IPv6 datagram? A) Base header B) Extension header C) Data packet from the upper layer D) (a) and (c)
Last Answer : Base header
Description : If the sender is a host and wants tosend a packet toanotherhost on another network, the logical address that must be mapped to a physical address is ______. A) thedestination IP address in the datagram ... the IP address of therouter found inthe routing table C) either a or b D) noneof the above
Last Answer : the IP address of therouter found inthe routing table
Description : f the sender is a host and wants tosend a packet toanotherhost on the samenetwork, the logical address that must be mapped to a physical address is ______. A) thedestination IP address in the datagram ... the IP address of therouter found inthe routing table C) either a or b D) noneof the above
Last Answer : hedestination IP address in the datagram header
Description : For which one of the following reasons does Internet Protocol (IP) use the time-to- live (TTL) field in the IP datagram header? a. Ensure packets reach destination within that time b. ... packets from looping indefinitely d. Limit the time for which a packet gets queued in intermediate routers.
Last Answer : c. Prevent packets from looping indefinitely
Description : Which among the below stated datagram discard code fields in ICMP is/are generated if a router fails to forward a packet due to administrative filtering? a. Source Route Failed b. Communication Administratively Prohibited c. Host Precedence Violation d. Precedence Cut-off in Effect
Last Answer : b. Communication Administratively Prohibited
Description : State weather the following statement is true or false for IPV6 Addressing 1). IPV6 is a routable protocol that addresses, routes, fragments, and reassembles packets 2).IPV6 is a connectionless, unreliable datagram protocol. 3). ... C. 1. false, 2. false, 3. false D. 1.false, 2. true, 3. true
Last Answer : A. 1. True, 2. true, 3. true
Description : In datagram subnet new route is chosen ………………… (A) for every packet sent (B) for first and last packet sent (C) only for the first packet (D) for the packet which is not transmitted
Last Answer : (A) for every packet sent
Description : There are two types of designs for communication subnets: they are ………… A. Point-to-Point channels and Broadcast channels B. packet-switched subnet and store-and-forward C. Multicasting and Broadcasting D. Point-to-Point channels and store-and-forward
Last Answer : A. Point-to-Point channels and Broadcast channels
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 : 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 : A ________network is made of a set of switches connected by physical links, in which each link is divided into nchannels. A) line-switched B) frame-switched C) circuit-switched D) none of the above
Description : We discussed ______ popular controlled-access methods. A) two B) three C) four D) none of the above
Last Answer : three
Description : Which of the following statements is correct for the use of packet switching? A. the subdivision of information into individuallyaddressed packets in conjunction with alternativerouting arrangementenabled the transmission path ... capacity could be achieved. D. All of theabove E. None of the above
Last Answer : All of theabove
Description : In _______delivery, the deliverer of theIP packet and the destination are on different networks. A) aconnection-oriented B) a direct C) an indirect D) none of the above
Last Answer : an indirect
Description : What is one advantage of setting up a DMZ(Demilitarized Zone) with two firewalls? a. You can control where traffic goes in the three networks b. You can do stateful packet filtering c. You can do load balancing d. Improve network performance
Last Answer : a. You can control where traffic goes in the three networks
Description : In computer networks _________ is a characteristic that a flow needs where Lack of it means losing a packet or acknowledgment, which entails retransmission. A. Reliability B. Delay C. Jitter D. Bandwidth
Last Answer : A. Reliability
Description : A __________ is a device that forwards packets between networks by processing the routing information included in the packet. a) bridge b) firewall c) router d) hub
Last Answer : c) router
Description : We candivide today's networks into ____ broad categories. A) four B) three C) five D) two
Description : The ________is a circuit-switched network, while the ______is a packet-switched network. (A) Telephone, ATM (B) SONET and FDDI (C) Satellite, Telephone (D) FDDI and SONET
Last Answer : (A) Telephone, ATM
Description : In _______ there are no setup or teardown phases. A) datagram switching B) circuit switching C) frame switching D) none of the above
Description : In __________, eachpacket is treatedindependentlyof all others. A) datagram switching B) circuit switching C) frame switching D) none of the above
Description : In _________, resources areallocatedon demand. A) datagram switching B) circuit switching C) frame switching D) none of the above
Description : In _______, the resources need to bereserved during the setup phase; the resources remain dedicated for the entire durationof data transfer phase until the teardownphase. A) datagram switching B) circuit switching C) frame switching D) none of the above
Last Answer : circuit switching
Description : What four switched networks are part of the defense communications system?
Last Answer : AUTOVON, AUTOSEVOCOM, AUTODIN, and DSSCS.
Description : Satellite-Switched Time-Division Multiple Access (SS/TDMA) is A. the method of determining whichdevice has access tothe transmission medium at any time. B. a medium access control technique for ... switching is used to dynamically changethechannel assignments D. All of theabove E. None of the above
Last Answer : a form of TDMA in which circuit switching is used to dynamically changethechannel assignments
Description : Which one of the following statements is FALSE? a. Packet switching leads to better utilization of bandwidth resources than circuit switching. b. Packet switching results in less variation ... than circuit switching d. Packet switching can lead to reordering unlike in circuit switching
Last Answer : Packet switching results in less variation in delay than circuit switching.
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 : What is circuit switching and packet switching?
Last Answer : Circuit Switching is a strategy for switching data through a network. It involves establishing a dedicated path (circuit) between the source and destination. Packet Switching is also a ... the switch interconnects. It uses store and forward switching of discrete data units called packets.
Description : Which of the following feature makes impossible to eavesdrop on GSM radio transmission? a) SIM b) On the air privacy c) SMS d) Packet switched traffic
Last Answer : b) On the air privacy
Description : Which of the following comes under supplementary ISDN services? a) Emergency calling b) Packet switched protocols c) Call diversion d) Standard mobile telephony
Last Answer : c) Call diversion