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 : Membership in a VLAN can be based on _________. A) port numbers B) MAC addresses C) IP addresses D) all of theabove
Last Answer : all of theabove
Description : The local host and the remote host are defined using IP addresses. To define the processes, we need second identifiers called ____________ A. UDP addresses B. transport addresses C. port addresses D. none of the above
Last Answer : C. port addresses
Description : _______ is a form of denial of service attack in which a hostile client repeatedly sends SYN packets to every port on the server using fake IP addresses. a) Cybergaming crime b) Memory shaving c) Syn flooding d) Software piracy e) None of these
Last Answer : a) Cybergaming crime
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
Last Answer : IP
Description : An IGMP packet is carried in an __________ packet. A) UDP B) IP C) Ethernet frame D) noneof the above
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 : 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 : 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 : To deliver a message to the correct application program running on a host, the _______ address must be consulted. A. IP B. MAC C. Port D. None of the mentioned
Last Answer : C. Port
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 : 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 : 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 : 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 : _______ 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 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 of the following assertions is FALSE about the Internet Protocol (IP)? a. It is possible for a computer to have multiple IP addresses b. IP packets from the same source to the same ... outgoing packets; the route is determined only by the routing tables in the routers on the way
Last Answer : d. The packet source cannot set the route of an outgoing packets; the route is determined only by the routing tables in the routers on the way
Description : Which form of byte assigning strategy is adopted in class B type of network corresponding to IP addresses? a. Network.Node.Node.Node b. Network.Network.Node.Node c. Network.Network.Network.Node d. Network.Node.Node.Node
Last Answer : b. Network.Network.Node.Node
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 : To avoid ambiguity, the names assigned to machines must be carefully selected from a ______ with complete control over the binding between the names and IP addresses A. Table B. look up table C. name space D. name table
Last Answer : C. name space
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 : Is it possible to block all traffic on a certain port except to two IP addresses?
Last Answer : It depends upon how flexible your router is. Use the router firmware to set this up. If your firmware isn’t sophisticated enough, try to find something like DWT or another good third-party router firmware program to update the one you have.
Description : Which of the following addresses is used to deliver a message to the correct application program running on a host? (A) Port (B) IP (C) Logical (D) Physical
Last Answer : (A) Port
Description : SHOULD OLD/DORMANT EMAIL ADDRESSES BE DELETED FROMCURRENT IP?
Last Answer : Need Answer
Description : DNS can obtain the of host if its domain name is known and vice versa. A) Station address B) IP address C) Port address D) Checksum
Last Answer : B) IP address
Description : In the TCP/IP protocol suite, which one of the following is NOT part of the IP header? a. Fragment Offset b. Source IP address c. Destination IP address d. Destination port number
Last Answer : d. Destination port number
Description : Length of Port address in TCP/IP is A. 8 bit long B. 4 bit long C. 32 bit long D. 16 bit long
Last Answer : D. 16 bit long
Description : Length of Port address in TCP/IP is a. 8 bit long b. 4 bit long c. 32 bit long d. 16 bit long
Last Answer : d. 16 bit long
Description : A _______ can check the MAC addresses contained inthe frame. A) passive hub B) repeater C) bridge D) route
Last Answer : bridge
Description : The number of addresses in a class A block is _______. A) 65,534 B) 16,777,216 C) 256 D) none of the above
Last Answer : 16,777,216
Description : The number of addresses in a class B block is _______. A) 65,536 B) 16,777,216 C) 256 D) none of the above
Last Answer : 65,536
Description : The number of addresses in a class C block is _______. A) 65,534 B) 16,777,216 C) 256 D) none of the above
Last Answer : 256
Description : In IPv4, class _______ has the greatestnumber of addresses in eachblock. A) A B) B C) C D) D
Last Answer : A
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 : IPv6 has _______ -bit addresses. A. 32 B. 64 C. 128 D. Variable
Last Answer : C. 128
Description : In IPv6, the _______ field inthe baseheader and thesender IP address combineto indicate aunique path identifier for aspecific flow of data. A) flow label B) nextheader C) hoplimit D) destination IP address
Last Answer : flow label
Description : _______ is the protocol suite for thecurrent Internet. A) TCP/IP B) NCP C) UNIX D) ACM
Last Answer : TCP/IP