Refer to the exhibit.Switch－1 needs to send data to a host with a MAC address of 00b0.d056.efa4.What will Switch－1 do with this data?()A.switch-1 will drop the data because it dose not have an entry for that MAC addressB.switch-1 will flood the data out a
题目
A.switch-1 will drop the data because it dose not have an entry for that MAC address
B.switch-1 will flood the data out all of its port from which the data originated
C.switch-1 will forward the data to its default gateway
D.tch-1 will send an ARP request out all its ports except the port from which the data originated
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更多“Refer to the exhibit.Switch－1 needs to send data to a host with a MAC address of 00b0.d056.efa4.What will Switch－1 do with this data?() ”相关问题
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第1题：
Anytime a host or a router has an IP datagram to send to another host or router, it has the（ ）address of the receiver. This address is obtained from the DNS if the sender is the host or it is found in a routing table if the sender is a router. But the IP data gram must be（ ） in a frame to be able to pass through the physical network. This means that the sender needs the （ ）address of the receiver. The host or the router sends an ARP query packet. The packet includes the physical and IP addresses of the sender and the IP address of the receiver. Because the sender does not know the physical address of the receiver, the query is（ ） over the network.Every host or router on the network receives and processes the ARP query packet, but only the intended recipient recognizes its IP address and sends back an ARP response packet.The response packet contains the recipient's IP and physical addresses. The packet is（请作答此空） directly to the inquirer by using the physical address received in the query packet.
A. multicast
B. unicast
C. broadcast
D. multiple unicast答案：B解析：任何时候主机或路由器要发送 IP 数据报发送给另一主机或路由器时，都需要知道接收方的逻辑地址。发送主机从 DNS 获得该地址，发送路由器则在路由表中找到该地址。但 IP 数据报必须封装在帧中才能通过物理网络。这意味着发送者需要知道接收者的物理地址。主机或路由器需发送 ARP 查询报文，该报文分组包含发送者的物理地址和 IP 地址及接收者的 IP 地址。这是因为送者不知道接收者的物理地址，所以需在全网广播报文。网络上的每个主机或路由器都能接收并处理该 ARP 查询报文，但只有预期的接收者识别其 IP 地址并响应该 ARP 报文。响应报文包含接收者的 IP 地址和物理地址。包含了接收者物理地址的响应报文分组通过单播的方式直接发送给发送者。 -
第2题：
Host 1 receives a file from remote server 1. Which MAC address appears as the source address in the header of the frames received by Host 1（）。
- A、The MAC address of the NIC in Host 1
- B、The MAC address of the NIC in server 1
- C、The MAC address of the Fa0/0 interface of router R1
- D、The MAC address of the s0/0/0 interface of the router R2
正确答案:C -
第3题：
Which of the following correctly describe steps in the OSI data encapsulation process?（）
- A、Transport layer divides a data stream into segments & adds reliability & flow control information
- B、Data link layer adds physical source & destination address & an FCS to the segment
- C、Packets are created when the network layer encapsulate a frame with source & destination host address& protocol related control information
- D、Packets are created when the network layers adds layers 3 address & control information to a segment
- E、The presentation layer translated bits into bits into voltages for transmission across the physical link
正确答案:A,D -
第4题：
On a half-duplex Ethernet LAN, two hosts attempt to send data simultaneously,resulting in a collision. Following this collision, what will the hosts do?（）
- A、The destination host sends a request to the source for retransmission.
- B、The jam signal indicates that the collision has been cleared.
- C、The hosts will attempt to resume transmission after a time delay has expired.
- D、An electrical pulse indicates that the collision has cleared.
- E、The router on the segment will signal that the collision has cleared.
- F、The hosts will do nothing, as the higher layers are responsible for data error correction and re-transmission.
正确答案:C -
第5题：
When a host transmits data across a network to another host, which process does the data go through?（）
- A、standardization
- B、conversion
- C、encapsulation
- D、synchronization
正确答案:C -
第6题：
The Company security administrator is concerned with layer 2 network attacks. Which two statements about these attacks are true？ （）
- A、 ARP spoofing attacks are attempts to redirect traffic to an attacking host by encapsulating a false 802.1Q header on a frame and causing traffic to be delivered to the wrong VLAN.
- B、 ARP spoofing attacks are attempts to redirect traffic to an attacking host by sending an ARP message with a forged identity to a transmitting host.
- C、 MAC address flooding is an attempt to force a switch to send all information out every port byoverloading the MAC address table.
- D、 ARP spoofing attacks are attempts to redirect traffic to an attacking host by sending an ARP packet that contains the forged address of the next hop router.
- E、 MAC address flooding is an attempt to redirect traffic to a single port by associating that port with all MAC addresses in the VLAN.
正确答案:B,C -
第7题：
Which destination addresses will be used by Host A to send data to Host C?（）
- A、the IP address of Switch 1
- B、the MAC address of Switch 1
- C、the IP address of Host C
- D、the MAC address of Host C
- E、the IP address of the router's E0 interface
- F、the MAC address of the router's E0 interface
正确答案:C,F -
第8题：
An IBM XIV system with nine modules and 2 TB disks is being proposed to a customer who needs to increase disk capacity in the data center. The customer is concerned about data growth andcost after the initial purchase. Which of the following factors of the solution should be stressed to the customer to address data growth?（）
- A、the XIV system can be scaled by the addition of modules
- B、XIV offers thin provisioning for all available host operating systems
- C、reduced operating costs will pay for another XIV system in less than two years
- D、the management GUI allows the administrator tovirtualize the entire storage system quickly
正确答案:A -
第9题：
单选题Refer to the exhibit.Switch-1 needs to send data to a host with a MAC address of 00b0.d056.efa4.What will Switch-1 do with this data?（）Aswitch-1 will drop the data because it dose not have an entry for that MAC address
Bswitch-1 will flood the data out all of its port from which the data originated
Cswitch-1 will forward the data to its default gateway
Dtch-1 will send an ARP request out all its ports except the port from which the data originated
正确答案： D解析： 暂无解析 -
第10题：
单选题A host is attempting to send data to another host on a different network. What is the first action that the sending host will take?（）ADrop the data.
BSend the data frames to the default gateway.
CCreate an ARP request to get a MAC address for the receiving host.
DSend a TCP SYN and wait for the SYN ACK with the IP address of the receiving host.
正确答案： B解析： 暂无解析 -
第11题：
单选题On a half-duplex Ethernet LAN, two hosts attempt to send data simultaneously,resulting in a collision. Following this collision, what will the hosts do?（）AThe destination host sends a request to the source for retransmission.
BThe jam signal indicates that the collision has been cleared.
CThe hosts will attempt to resume transmission after a time delay has expired.
DAn electrical pulse indicates that the collision has cleared.
EThe router on the segment will signal that the collision has cleared.
FThe hosts will do nothing, as the higher layers are responsible for data error correction and re-transmission.
正确答案： C解析： 暂无解析 -
第12题：
多选题Which destination addresses will be used by Host A to send data to Host C?（）Athe IP address of Switch 1
Bthe MAC address of Switch 1
Cthe IP address of Host C
Dthe MAC address of Host C
Ethe IP address of the router's E0 interface
Fthe MAC address of the router's E0 interface
正确答案： D,B解析： 暂无解析 -
第13题：
A host is attempting to send data to another host on a different network. What is the first action that the sending host will take?（）
- A、Drop the data.
- B、Send the data frames to the default gateway.
- C、Create an ARP request to get a MAC address for the receiving host.
- D、Send a TCP SYN and wait for the SYN ACK with the IP address of the receiving host.
正确答案:C -
第14题：
Which OSI layer header contains the address of a destination host that is another network?（）
- A、application
- B、presentation
- C、session
- D、transport
- E、network
- F、data link
- G、physical
正确答案:E -
第15题：
Host 1 has just started up and requests a web page from web server 2. Which two statements describe steps in the process Host 1 uses to send the request to web server 2 (choose two)（）。
- A、Host 1 addresses the frames to the MAC address of router R1
- B、Host 1 looks in its ARP cache for the MAC address of router R1
- C、Host 1 addresses the frames to the MAC address of web server 2
- D、Host 1 sends the packets to router R1 to be forwarded to web server 2
- E、Host 1 sends a broadcast ARP request to obtain the MAC address of webserver2
正确答案:C,E -
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：
Which three IP multicast group concepts are true?（）
- A、If a packet is sent to a multicast group address, the multicast frame contains the source multicast address.
- B、A router does not have to be a member of a multicast group to recei ve multicast data.
- C、A router must be a member of a multicast group to send to the group.
- D、A router does not have to be a member of a multicast group to send to the group.
- E、If a packet is sent to a multicast group address, all members of the multic ast group will receive it.
- F、A router must be a member of a multicast group to receive multicast data.
正确答案:D,E,F -
第18题：
Which three IP multicast group concepts are true？ （Choose three.） （）
- A、 If a packet is sent to a multicast group address， all members of the multicast group will receive it
- B、 If a packet is sent to a multicast group address， the multicast frame contains the source multicast address
- C、 A router does not have to be a member of a multicast group to receive multicast data.
- D、 A router does not have to be a member of a multicast group to send to the group.
- E、 A router must be a member of a multicast group to receive multicast data.
- F、 A router must be a member of a multicast group to send to the group.
正确答案:A,D,E -
第19题：
Which layer of the OSI reference model uses the hardware address of a device to ensure message delivery to the proper host on a LAN?（）
- A、physical
- B、data link
- C、network
- D、transport
正确答案:B -
第20题：
单选题An IBM XIV system with nine modules and 2 TB disks is being proposed to a customer who needs to increase disk capacity in the data center. The customer is concerned about data growth andcost after the initial purchase. Which of the following factors of the solution should be stressed to the customer to address data growth?（）Athe XIV system can be scaled by the addition of modules
BXIV offers thin provisioning for all available host operating systems
Creduced operating costs will pay for another XIV system in less than two years
Dthe management GUI allows the administrator tovirtualize the entire storage system quickly
正确答案： B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？（）Anetwork
Bapplication
Csession
Ddata link
正确答案： D解析： 暂无解析 -
第22题：
单选题Host 1 receives a file from remote server 1. Which MAC address appears as the source address in the header of the frames received by Host 1（）。AThe MAC address of the NIC in Host 1
BThe MAC address of the NIC in server 1
CThe MAC address of the Fa0/0 interface of router R1
DThe MAC address of the s0/0/0 interface of the router R2
正确答案： A解析： 暂无解析 -
第23题：
多选题Which three IP multicast group concepts are true?（）AIf a packet is sent to a multicast group address, the multicast frame contains the source multicast address.
BA router does not have to be a member of a multicast group to receive multicast data.
CA router must be a member of a multicast group to send to the group.
DA router does not have to be a member of a multicast group to send to the group.
EIf a packet is sent to a multicast group address, all members of the multicast group will rece ive it.
FA router must be a member of a multicast group to receive multicast data.
正确答案： B,A解析： 暂无解析