What is the first 24 bits in a MAC address called?() A. NICB. BIAC. OUID. VAI
What is the first 24 bits in a MAC address called?()
A. NIC
B. BIA
C. OUI
D. VAI
相关考题：
Which two design concerns must be addressed when designing a multicast implementation?() A. only the low-order 23 bits of the MAC address are used to map IP addressesB. only the low-order 24 bits of the MAC address are used to map IP addressesC. only the high-order 23 bits of the MAC address are used to map IP addressesD. only the low-order 23 bits of the IP address are used to map MAC addressesE. the 0x01004f MAC address prefix is used for mapping IP addresses to MAC addressesF. the 0x01005e MAC address prefix is used for mapping IP addresses to MAC addresses
Refer to the graphic.Host A is communicating with the seiver. What will be the source MAC address of the frames received by Host A from the server?() A.the MAC address of the seiver network interfaceB.the MAC address of host AC.the MAC address of router interface e 1D.the MAC address of router interface e0
What is the effect of the following access list condition access－list 101 permit ip 10.25.30.0 0.0.0.255 any()。 A.permit all packets matching the first three octets of the source address to all destinationsB.permit all packets matching the last octet of the destination address and accept all source addressesC.permit all packets from the third subnet of the network address to all destinationsD.permit all packets matching the host bits in the source address to all destinationsE.permit all packets to destinations matching the first three octets in the destination address
What is the purpose of the inverse ARP?() A.to map a known DLCI to an IP addressB.to mapa known IP address to a MAC addressC.to map known SPID toa MAC addressD.to map a known DLCI to a MAC addressE.to map a known IP address to a SPIDF.to mapa known MAC address to an IP address
Each machine in the internet is assigned a unique network address，called （ ） ，that is used to identify the machine for communication purposes. A.MAC address B.IP address C.host address D.domain name address
What is the purpose of the inverse ARP？（）A、to map a known DLCI to an IP addressB、to map a known IP address to a MAC addressC、to map known SPID to a MAC addressD、to map a known DLCI to a MAC addressE、to map a known IP address to a SPIDF、to map a known MAC address to an IP address
Which two statements are true when the extended system ID feature is enabled？ （）A、The BID is made up of the bridge priority value（two bytes） and bridge MAC address （six bytes）.B、The BID is made up of the bridge priority （four bits）， the system ID （12 bits）， and a bridge MAC address （48 bits）.C、The BID is made up of the system ID （six bytes） and bridge priority value （two bytes）.D、The system ID value is the VLAN ID （VID）.E、The system ID value is a unique MAC address allocated from a pool of MAC addresses assigned to the switch or module.F、The system ID value is a hex number used to measure the preference of a bridge in the spanning-tree algorithm.
What is the purpose of the inverse ARP？（）A、to map a known DLCI to an IP addressB、to mapa known IP address to a MAC addressC、to map known SPID toa MAC addressD、to map a known DLCI to a MAC addressE、to map a known IP address to a SPIDF、to mapa known MAC address to an IP address
Inverse ARP is being used in the TestKing frame relay network. What is the purpose of Inverse ARP?（）A、To ma a known IP address to a MAC addressB、To map a known DLCI to a MAC addressC、To ma a known MAC address to an IP addressD、To ma a known DLCI address to a IP addressE、To ma a known IP address to a SPID addressF、To ma a known SPID address to a MAC address
In computer networking a multicast address is an identifier for a group of hosts that have joined amulticast group. Multicast addressing can be used in the Link Layer （OSI Layer 2）， such as Ethernet Multicast， as well as at the Internet Layer （OSI Layer 3） as IPv4 or IPv6 Multicast. Whichtwo descriptions are correct regarding multicast addressing？（）A、The first 23 bits of the multicast MAC address are 0x01-00-5E. This is a reserved value thatindicates a multicast applicationB、The last 3 bytes （24 bits） of the multicast MAC address are 0x01-00-5E. This is a reservedvalue that indicates a multicast applicationC、To calculate the Layer 2 multicast address， the host maps the last 23 bits of the IP address intothe last 24 bits of the MAC address. The high-order bit is set to 0D、The first 3 bytes （24 bits） of the multicast MAC address are 0x01-00-5E. This is a reservedvalue that indicates a multicast application
A computer is connected to the network through a NIC， which has a unique assignment that is called the Ethernet MAC address. Which layer of the OSI model does the MAC address use to communicate with the network？（）A、 networkB、 applicationC、 sessionD、 data link
Each machine in the internet is assigned a unique network address,called（）,that is used to identify the machine for communication purposesA、MAC addressB、IP addressC、host addressD、domain name address
What is the purpose of the inverse ARP?（）A、to map a known DLCI to an IP addressB、to map a known IP address to a MAC addressC、to map known SPID to a MACaddressD、to map a known DLCI to a MAC addressE、to map a known IP address to a SPIDF、to map a known MAC address to an IP address
Which of the following are true regarding a network using a subnet mask of 255.255.248.0?（）A、It corresponds to a Class A address with 13 bits borrowed.B、It corresponds to a Class B address with 4 bits borrowed.C、The network address of the last subnet will have 248 in the 3rd octet.D、The first 21 bits make the host portion of the address.E、This subnet mask allows for 16 total subnets to be created.F、The subnetwork numbers will be in multiples of 8.
The following configuration line was added to router R1 Access-list 101 permit ip 10.25.30.0 0.0.0.255 any What is the effect of this access list configuration?（）A、permit all packets matching the first three octets of the source address to all destinationsB、permit all packet matching the last octet of the destination address and accept all source addressesC、permit all packet matching the host bits in the source address to all destinationsD、permit all packet from the third subnet of the network address to all destinations
What is the effect of the following access list condition access-list 101 permit ip 10.25.30.0 0.0.0.255 any（）。A、permit all packets matching the first three octets of the source address to all destinationsB、permit all packets matching the last octet of the destination address and accept all source addressesC、permit all packets from the third subnet of the network address to all destinationsD、permit all packets matching the host bits in the source address to all destinationsE、permit all packets to destinations matching the first three octets in the destination address
What is the mechanism that is used to allocate MAC addresses that are assigned to the VDC for the system MAC address？（） A、 NX-OS uses a random MAC address from the IEEE OUI block that is assigned to Cisco.B、 The VDC system MAC is pulled from the active supervisor and concatenated through a hash to ensure uniqueness.C、 NX-OS uses a value that is based on a range that is assigned to the SPROM of the system backplane.D、 The VDC system MAC is based on a range that is allocated to the first line card that is installed in the switch.
单选题In the IS-IS Designated Intermediate System （DIS） election process， which criteria is used for DIS selection？（）Ahighest router ID first， then highest priorityBhighest MAC address first， then highest priorityChighest router ID first， then highest MAC addressDhighest priority first， then highest router IDEhighest priority first， then highest MAC address
多选题Which two design concerns must be addressed when designing a multicast implementation？（）Aonly the low-order 23 bits of the MAC address are used to map IP addressesBonly the low-order 24 bits of the MAC address are used to map IP addressesConly the high-order 23 bits of the MAC address are used to map IP addressesDonly the low-order 23 bits of the IP address are used to map MAC addressesEthe 0x01004f MAC address prefix is used for mapping IP addresses to MAC addressesFthe 0x01005e MAC address prefix is used for mapping IP addresses to MAC addresses
单选题A computer is connected to the network through a NIC， which has a unique assignment that is called the Ethernet MAC address. Which layer of the OSI model does the MAC address use to communicate with the network？（）A networkB applicationC sessionD data link
单选题What is the effect of the following access list condition? access-list 101 permit ip 10.25.30.0 0.0.0.255 any（）。Apermit all packets matching the first three octets of the source address to all destinationsBpermit all packets matching the last octet of the destination address and accept all source addressesCpermit all packets from the third subnet of the network address to all destinationsDpermit all packets matching the host bits in the source address to all destinationsEpermit all packets to destinations matching the first three octets in the destination address
单选题What is the mechanism that is used to allocate MAC addresses that are assigned to the VDC for the system MAC address？（）A NX-OS uses a random MAC address from the IEEE OUI block that is assigned to Cisco.B The VDC system MAC is pulled from the active supervisor and concatenated through a hash to ensure uniqueness.C NX-OS uses a value that is based on a range that is assigned to the SPROM of the system backplane.D The VDC system MAC is based on a range that is allocated to the first line card that is installed in the switch.
单选题What is the result of entering the command port-channel load-balance src-dst-ip on an EtherChannel link？ （）APackets are distributed across the ports in the channel based on both the source and destination MAC addresses.BPackets are distributed across the ports in the channel based on both the source and destination IP addresses.CPackets are balanced across the ports in the channel based first on the source MAC address， then on the destination MAC address， then on the IP address.DPackets are distributed across the access ports in the channel based first on the source IP address and then the destination IP addresses.
单选题What is the purpose of the inverse ARP？（）Ato map a known DLCI to an IP addressBto mapa known IP address to a MAC addressCto map known SPID toa MAC addressDto map a known DLCI to a MAC addressEto map a known IP address to a SPIDFto mapa known MAC address to an IP address
多选题In computer networking a multicast address is an identifier for a group of hosts that have joined amulticast group. Multicast addressing can be used in the Link Layer （OSI Layer 2）， such as Ethernet Multicast， as well as at the Internet Layer （OSI Layer 3） as IPv4 or IPv6 Multicast. Whichtwo descriptions are correct regarding multicast addressing？（）AThe first 23 bits of the multicast MAC address are 0x01-00-5E. This is a reserved value thatindicates a multicast applicationBThe last 3 bytes （24 bits） of the multicast MAC address are 0x01-00-5E. This is a reservedvalue that indicates a multicast applicationCTo calculate the Layer 2 multicast address， the host maps the last 23 bits of the IP address intothe last 24 bits of the MAC address. The high-order bit is set to 0DThe first 3 bytes （24 bits） of the multicast MAC address are 0x01-00-5E. This is a reservedvalue that indicates a multicast application
多选题Which of the following are true regarding a network using a subnet mask of 255.255.248.0?（）AIt corresponds to a Class A address with 13 bits borrowed.BIt corresponds to a Class B address with 4 bits borrowed.CThe network address of the last subnet will have 248 in the 3rd octet.DThe first 21 bits make the host portion of the address.EThis subnet mask allows for 16 total subnets to be created.FThe subnetwork numbers will be in multiples of 8.