Description : _______address is an internetwork address withuniversal jurisdiction. A) physical B) logical C) a and b D) noneof the above
Last Answer : logical
Description : The sender is a router thathas receiveda datagram destinedfor a host on thesame network. The logical address that mustbe mapped to a physical address is ______. A) thedestination IP address in the datagram ... IP address of therouter found inthe routing table C) either a or b D) noneof the above
Last Answer : thedestination IP address in the datagram 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 : _______ isa dynamic mapping protocol in which a physical address is found for agiven logicaladdress. A) ARP B) RARP C) botha and b D) noneof the above
Last Answer : ARP
Description : In _______, a tableassociating a logicaladdress with a physical address is updated manually. A) static mapping B) dynamic mapping C) physical mapping D) noneof the above
Last Answer : static mapping
Description : Which of the following condition is usedto transmit two packets overa medium at the same time? A. Contention B. Collision C. Synchronous D. Asynchronous E. None of the above
Last Answer : Collision
Description : The _______ is a dynamic mapping protocol in which a physical address is found for a given logical address. A. ARP B. RARP C. both a and b D. none of the above
Last Answer : B. RARP
Description : Which address is used to identify a process on a host by the transport layer? a) physical address b) logical address c) port address d) specific address
Last Answer : c) port address
Description : The _______ field of the IGMP message is all zeros in a query message. A) version B) type C) group address D) noneof the above
Last Answer : group address
Description : The least significant 23 bits in a 48-bit Ethernet address identify a ________. A) multicast router B) host C) multicast group D) noneof the above
Last Answer : multicast group
Description : The sender is a router thathas receiveda datagram destinedfor a host on anothernetwork. The logicaladdress that must be mapped to aphysical address is ______. A) thedestination IP address in the datagram header ... address of therouter found inthe routing table C) either a or b D) noneof the above
Description : In networks thatdo not support physical multicastaddressing, multicastingcan be accomplished through _______. A) mapping B) queries C) tunneling D) noneof the above
Last Answer : tunneling
Description : The physical layer translates logical communication requests from the ______ into hardware specific operations. a. data link layer b. network layer c. trasnport layer d. application layer
Last Answer : a. data link layer
Description : Physical or logical arrangement of network is __________ a) Topology b) Routing c) Networking d) Control
Last Answer : a) Topology
Description : In IPv6, when a datagram needs tobediscarded ina congested network, the decision is basedon the _______ field in thebase header. A) hop limit B) priority C) nextheader D) noneof the above
Last Answer : priority
Description : ICMP is a _________ layer protocol. A) datalink B) transport C) network D) noneof the above
Last Answer : network
Description : A ________is a device in which the stations are completely unaware of its existence. A) passive hub B) repeater C) simple bridge D) transparent bridge
Last Answer : transparent bridge
Description : The _______ address in theheader ofa packet in adatagram network normally remains thesame during the entire journeyof the packet. A) source B) destination C) local D) none of the above
Last Answer : destination
Description : ________is a multiple-access method in which the available bandwidthof a link is shared in time, frequency, or through code, between different stations. A) Random access B) Controlledaccess C) Channelization D) none of the above
Last Answer : Channelization
Description : ________is the set of techniques that allows the simultaneous transmission of multiple signalsacrossa single data link. A) Demodulating B) Multiplexing C) Compressing D) None of the above
Last Answer : Multiplexing
Description : Which of the following statement is incorrect? A. The Addresses Resolution Protocol, ARP, allows a host to find the physicaladdress ofa target host on the samephysical network, given only the target IP address. ... -addresses of our choice to every machine. D. All of theabove E. None of the above
Last Answer : All of theabove
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 : …………………………………. converts a physical network address into an IP address. A. ARP B. RARP C. DNS D. DHCP
Description : The physical address to each machine is provided by which layer in an OSI reference model? A. Physical layer B. Data Link Layer C. Network Layer D. Transport Layer
Last Answer : B. Data Link Layer
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 : The ____ namespace is based on a hierarchical and logical tree structure A. DNS B. Address C. table D. both a and b
Last Answer : A. DNS
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 : The IP packet that carries an IGMP packet has a value of _______ in its protocol field. A) 3 B) 2 C) 1 D) noneof the above
Last Answer : 2
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 : Protocols are? A. Agreements on how communication components and DTE's are to communicate. B. Logical communication channels for transferring data C. Physical communication channels sued for transferring data D. None of above
Last Answer : A. Agreements on how communication components and DTE's are to communicate.
Description : IPv6 allows _________ security provisions than IPv4. A) more B) less C) thesame level D) noneof the above
Last Answer : more
Description : In IPv6,options are inserted between the _________and the ___________ data. A) baseheader;extensionheader B) baseheader;upper-layer data C) base header; frame header D) noneof the abov
Last Answer : baseheader;upper-layer data
Description : The IPv4header field formerly knownas the service type field is now calledthe _______ field. A) IETF B) checksum C) differentiatedservices D) noneof the above
Last Answer : differentiatedservices
Description : In IPv4, when a datagram is encapsulated in a frame, the total sizeof the datagram must beless thanthe _______. A) MUT B) MAT C) MTU D) noneof the above
Last Answer : MTU
Description : The IPv4header size _______. A) is 20 to 60 bytes long B) is 20 bytes long C) is 60 bytes long D) noneof the above
Last Answer : is 20 to 60 bytes long
Description : In IPv4, which field or bit value unambiguously identifies thedatagram as a fragment? A) Donot fragment bit ?0 B) More Fragment bit ?0 C) Fragment offset = 1000 D) noneof the above
Last Answer : Fragment offset = 1000
Description : n IPv4,an HLEN value ofdecimal10 means _______. A) there are 10bytes ofoptions B) there are 40bytes ofoptions C) there are 40bytes inthe header D) noneof the above
Last Answer : there are 40bytes inthe header
Description : IP is _________ datagram protocol. A) an unreliable B) a connectionless C) botha and b D) noneof the above
Last Answer : botha and b
Description : The ________ protocol is the transmission mechanism used by the TCP/IP suite. A) ARP B) IP C) RARP D) noneof the above
Last Answer : IP
Description : A best-effort delivery service suchas IPv4 includes _______. A) error checking B) error correction C) datagram acknowledgment D) noneof the above
Last Answer : noneof the above
Description : An IGMP packet is carried in an __________ packet. A) UDP B) IP C) Ethernet frame D) noneof the above
Description : In IGMP, the general query message ___________________ group. A) doesnot define a particular B) explicitly defines a C) candefine more thanone D) noneof the above
Last Answer : doesnot define a particular
Description : In IGMP, a membershipreport is sent_______. A) once B) twice C) three times D) noneof the above
Last Answer : twice
Description : f four hosts on anetworkbelong tothesame group, a totalof _______ sent inresponse to a general query message. A) one membership report is B) two membership reports are C) three membership reports are D) noneof the above
Last Answer : two membership reports are
Description : A multicast message is sent from _______ to _______. A) onesource; one destination B) onesource; multiple destinations C) multiple sources; onedestination D) noneof the above
Last Answer : onesource; multiple destinations
Description : The _______ is used by a router in response to a received leave report. A) general query message B) special query message C) membershipreport D) noneof the above
Last Answer : special query message
Description : An IGMP query is sent from a _______to a _______. A) host; host B) host; router C) router; hostor router D) noneof the above
Last Answer : router; hostor router
Description : IGMP operates __________. A) locally B) globally C) botha and b D) noneof the above
Last Answer : locally