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 : 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 : 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 : 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 : 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 : 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 : 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 : 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 _______ 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 _______ 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 : An ARP request is normally _______. A) broadcast B) multicast C) unicast D) noneof the above
Last Answer : broadcast
Description : The logicaladdresses in theInternetarecalled _______ addresses. A) port B) IP C) Email D) noneof the above
Last Answer : IP
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 : A ________is a local address. Its jurisdiction is overa local network. A) physical B) logical C) a and b D) noneof the above
Last Answer : physical
Description : _______address is an internetwork address withuniversal jurisdiction. A) physical B) logical C) a and b D) noneof the above
Last Answer : logical
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 : What does PPTP stand for ? Point to Point Transmission Protocol Point to Point Transfer Protocol Point to Point Tunneling Protocol Point to Point Traffic Protoco
Last Answer : Point to Point Tunneling Protocol
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 : In the original ARPANET,_______ were directly connected together. A) IMPs B) host computers C) networks D) routers
Last Answer : IMPs
Description : The Aloha protocol is an OSI _______ protocol for LAN networks with broadcast topology A. layer 1 B. layer 4 C. layer 2 D. layer 3
Last Answer : C. layer 2
Description : . In addresses for _______ networks, the first 16 bits specify a particular network, and the last 16 bits specify a particular host. A. class A B. class C C. class B D. class D
Last Answer : C. class B
Description : The ability of a single network to span multiple physical networks is known as ______ a. Subnetting b. Masking c. Fragmenting d. Hopping
Last Answer : a. Subnetting
Description : The purpose of a proxy server is to control exchange of data between the two networks at …………..instead of ……….. A. an application level , an IP level B. network layer, physical layer C. an application layer, physical layer D. Network layer , an application layer
Last Answer : A. an application level , an IP level
Description : .................... is used to carry traffic of one protocol over network that does not support that protocol directly. A) Tunneling
Last Answer : A) Tunneling
Description : ………………….. is used to carry traffic of one protocol over network that does not support that protocol directly. A) Tunneling B) Transferring C) Trafficking D) Switching
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 : 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 : 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 : 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
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 : 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 : IGMP operates __________. A) locally B) globally C) botha and b D) noneof the above
Last Answer : locally
Description : IGMP helps a ________ router createand update a list of loyal members relatedto each router interface. A) broadcast B) unicast C) multicast D) noneof the above
Last Answer : multicast
Description : IGMP is_______protocol. A) an error reporting B) a group management C) a transmission D) noneof the above
Last Answer : a group management
Description : IGMP isa companion to the ______protocol. A) UDP B) TCP C) ICM D) noneof the above
Description : An ICMP message has _____ headerand a variable-size data section. A) a 16-byte B) a 32-byte C) an 8-byte D) noneof the above
Last Answer : an 8-byte
Description : ICMP messagesare divided into two broad categories: _____________. A) query and error reporting messages B) request and response messages C) request and reply messages D) noneof the above
Last Answer : query and error reporting messages
Description : ICMP is a _________ layer protocol. A) datalink B) transport C) network D) noneof the above
Last Answer : network