单选题What is the first 24 bits in a MAC address called?（）A NICB BIAC OUID VAI

题目
单选题
What is the first 24 bits in a MAC address called?（）
A

NIC

B

BIA

C

OUI

D

VAI

相似考题

1.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

2.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

3.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

4.What is the first 24 bits in a MAC address called?()A. NICB. BIAC. OUID. VAI

更多“What is the first 24 bits in a MAC address called?（）”相关问题

  • 第1题：

    What is the purpose of the inverse ARP?()

    A.to map a known DLCI to an IP address

    B.to mapa known IP address to a MAC address

    C.to map known SPID toa MAC address

    D.to map a known DLCI to a MAC address

    E.to map a known IP address to a SPID

    F.to mapa known MAC address to an IP address


    参考答案：A

  • 第2题：

    What is the purpose of the inverse ARP？（）

    • A、to map a known DLCI to an IP address
    • B、to map a known IP address to a MAC address
    • C、to map known SPID to a MAC address
    • D、to map a known DLCI to a MAC address
    • E、to map a known IP address to a SPID
    • F、to map a known MAC address to an IP address

    正确答案:A

  • 第3题：

    What is the purpose of the inverse ARP？（）

    • A、to map a known DLCI to an IP address
    • B、to mapa known IP address to a MAC address
    • C、to map known SPID toa MAC address
    • D、to map a known DLCI to a MAC address
    • E、to map a known IP address to a SPID
    • F、to mapa known MAC address to an IP address

    正确答案:A

  • 第4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？（）

    • A、The first 23 bits of the multicast MAC address are 0x01-00-5E. This is a reserved value thatindicates a multicast application
    • B、The last 3 bytes （24 bits） of the multicast MAC address are 0x01-00-5E. This is a reservedvalue that indicates a multicast application
    • C、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 0
    • D、The first 3 bytes （24 bits） of the multicast MAC address are 0x01-00-5E. This is a reservedvalue that indicates a multicast application

    正确答案:C,D

  • 第5题：

    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

    正确答案:B

  • 第6题：

    What is the first 24 bits in a MAC address called?（）

    • A、NIC
    • B、BIA
    • C、OUI
    • D、VAI

    正确答案:C

  • 第7题：

    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 destinations
    • B、permit all packet matching the last octet of the destination address and accept all source addresses
    • C、permit all packet matching the host bits in the source address to all destinations
    • D、permit all packet from the third subnet of the network address to all destinations

    正确答案:A

  • 第8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.

    正确答案:C

  • 第9题：

    多选题
    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 addresses

    B

    only the low-order 24 bits of the MAC address are used to map IP addresses

    C

    only the high-order 23 bits of the MAC address are used to map IP addresses

    D

    only the low-order 23 bits of the IP address are used to map MAC addresses

    E

    the 0x01004f MAC address prefix is used for mapping IP addresses to MAC addresses

    F

    the 0x01005e MAC address prefix is used for mapping IP addresses to MAC addresses


    正确答案： A,D
    解析： 暂无解析

  • 第10题：

    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（）。
    A

    permit all packets matching the first three octets of the source address to all destinations

    B

    permit all packets matching the last octet of the destination address and accept all source addresses

    C

    permit all packets from the third subnet of the network address to all destinations

    D

    permit all packets matching the host bits in the source address to all destinations

    E

    permit all packets to destinations matching the first three octets in the destination address


    正确答案： A
    解析： 暂无解析

  • 第11题：

    单选题
    What is the result of entering the command port-channel load-balance src-dst-ip on an EtherChannel link？ （）
    A

    Packets are distributed across the ports in the channel based on both the source and destination MAC addresses.

    B

    Packets are distributed across the ports in the channel based on both the source and destination IP addresses.

    C

    Packets 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.

    D

    Packets are distributed across the access ports in the channel based first on the source IP address and then the destination IP addresses.


    正确答案： D
    解析： 暂无解析

  • 第12题：

    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？（）
    A

    The first 23 bits of the multicast MAC address are 0x01-00-5E. This is a reserved value thatindicates a multicast application

    B

    The last 3 bytes （24 bits） of the multicast MAC address are 0x01-00-5E. This is a reservedvalue that indicates a multicast application

    C

    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 0

    D

    The first 3 bytes （24 bits） of the multicast MAC address are 0x01-00-5E. This is a reservedvalue that indicates a multicast application


    正确答案： D,A
    解析： 暂无解析

  • 第13题：

    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

    答案：B
    解析：
    在互联网上的每个计算机都被分配了一个IP地址，这个地址是用来和其他计算机通信的。 A．MAC地址 B．IP地址 C．主机地址 D．域名地址

  • 第14题：

    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.

    正确答案:B,D

  • 第15题：

    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 address
    • B、To map a known DLCI to a MAC address
    • C、To ma a known MAC address to an IP address
    • D、To ma a known DLCI address to a IP address
    • E、To ma a known IP address to a SPID address
    • F、To ma a known SPID address to a MAC address

    正确答案:D

  • 第16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、 network
    • B、 application
    • C、 session
    • D、 data link

    正确答案:D

  • 第17题：

    What is the purpose of the inverse ARP?（）

    • A、to map a known DLCI to an IP address
    • B、to map a known IP address to a MAC address
    • C、to map known SPID to a MACaddress
    • D、to map a known DLCI to a MAC address
    • E、to map a known IP address to a SPID
    • F、to map a known MAC address to an IP address

    正确答案:A

  • 第18题：

    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.

    正确答案:A,C,F

  • 第19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（）。

    • A、permit all packets matching the first three octets of the source address to all destinations
    • B、permit all packets matching the last octet of the destination address and accept all source addresses
    • C、permit all packets from the third subnet of the network address to all destinations
    • D、permit all packets matching the host bits in the source address to all destinations
    • E、permit all packets to destinations matching the first three octets in the destination address

    正确答案:A

  • 第20题：

    单选题
    In the IS-IS Designated Intermediate System （DIS） election process， which criteria is used for DIS selection？（）
    A

    highest router ID first， then highest priority

    B

    highest MAC address first， then highest priority

    C

    highest router ID first， then highest MAC address

    D

    highest priority first， then highest router ID

    E

    highest priority first， then highest MAC address


    正确答案： D
    解析： 暂无解析

  • 第21题：

    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

     network

    B

     application

    C

     session

    D

     data link


    正确答案： D
    解析： 暂无解析

  • 第22题：

    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.


    正确答案： C
    解析： 暂无解析

  • 第23题：

    单选题
    What is the purpose of the inverse ARP？（）
    A

    to map a known DLCI to an IP address

    B

    to mapa known IP address to a MAC address

    C

    to map known SPID toa MAC address

    D

    to map a known DLCI to a MAC address

    E

    to map a known IP address to a SPID

    F

    to mapa known MAC address to an IP address


    正确答案： F
    解析： 暂无解析

  • 第24题：

    多选题
    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.


    正确答案： A,C
    解析： 暂无解析

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