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?（）

NIC

BIA

OUI

VAI

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相似问题和答案

第1题：

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 interface

B.the MAC address of host A

C.the MAC address of router interface e 1

D.the MAC address of router interface e0

参考答案：D

第2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3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

参考答案：A, F

第4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5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6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

参考答案：A

第7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8题：

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

A. NIC

B. BIA

C. OUI

D. VAI

参考答案：C

第9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10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

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

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