Host 1 sends an ICMP echo request to remote sever1. Layer2 header of the frame containing the ping packet()。 A.The IP address of sever 1.B.The MAC address of NIC in sever 1.C.The IP address of F0/0 interface of router R1.D.The MAC address of the Fa0/0 interface of router R1.E.The IP address of the s0/0/0 interface of router R2F.The MAC address of the s0/0/0 interface of router R2
Host 1 sends an ICMP echo request to remote sever1. Layer2 header of the frame containing the ping packet()。
A.The IP address of sever 1.
B.The MAC address of NIC in sever 1.
C.The IP address of F0/0 interface of router R1.
D.The MAC address of the Fa0/0 interface of router R1.
E.The IP address of the s0/0/0 interface of router R2
F.The MAC address of the s0/0/0 interface of router R2
相关考题：
When you use the ping command to send ICMP messages across a network, what's the most common request/reply pair you'll see? (Select one answer choice)A．Echo request and Echo replyB．ICMP hold and ICMP sendC．ICMP request and ICMP replyD．Echo off and Echo onE．None of the above
Click the Exhibit button.A user logs in, is assigned the default role, and successfully loads the Host Enforcer policies shown in the exhibit.Which three statements are true? () A. The local host will respond to ICMP echo-request packets from 192.168.53.10.B. The local host will respond to UDP port 53 requests from 192.168.1.25.C. The local host can send any packet of any type to host 172.16.1.1.D. The local host will accept any packet of any type from host 172.16.1.1.E. The local host can send packets to UDP port512 on server 192.168.53.10.
What happens when you issue the ping 172.19.102.2 count 5 command?() A. ICMP echo requests are sent to 172.19.102.2 in five-millisecond intervals.B. ICMP echo requests are sent to 172.19.102.2 until five packets are dropped.C. ICMP echo requests are sent to 172.19.102.2 five times.D. ICMP echo requests are sent continuously to 172.19.102.2 for five seconds.
Which action does the ping 172.18.1.1 size 5 command perform?() A. It sends only five ping requests to the 172.18.1.1 destination.B. It sends a continuous ping with a packet length of five bytes to the 172.18.1.1 destination.C. It sends five rapid ping requests to the 172.18.1.1 destination.D. It sends a continuous rapid ping with a packet length of five bytes to the 172.18.1.1 destination.
A PC on a network segment sends data to another PC on a different segment.Which of the following correctly describe the correct order of how this data will be encapsulated?() A. Data, Frame, Packet, Segment, BitB. Data, Frame, Segment, Packet, BitC. Data, Packet, Frame, Segment, BitD. Data, Packet, Segment, Frame, BitE. Data, Segment, Frame, Packet, BitF. Data, Segment, Packet, Frame, Bit
The user of Host1 wants to ping the DSL modem／router at 192.168.1.254. Based on the Host1 ARP table that is shown in the exhibit, what will Host1 do()。 A.send a unicast ARP packet to the DSL modem/routerB.send unicast ICMP packets to the DSL modem/routerC.send Layer 3 broadcast packets to which the DSL modem/router respondsD.send a Layer 2 broadcast that is received by Host2, the switch, and the DSL modem/router
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. multicastB. unicastC. broadcastD. multiple unicast
Host 1 sends a request for a file to remote sever1. Which destination address does Host 1 place f the packet containing the request（）。A、The Mac address of the NIC in Sever1B、The IP address of Server 1.C、The MAC address of the s0/0/0 interface of router R2D、The IP address of the s0/0/0 interface of router R1E、The IP address of the Fa0/0 interface of router R1
Host 1 sends an ICMP echo request to remote sever1. Layer2 header of the frame containing the ping packet（）。A、The IP address of sever 1.B、The MAC address of NIC in sever 1.C、The IP address of F0/0 interface of router R1.D、The MAC address of the Fa0/0 interface of router R1.E、The IP address of the s0/0/0 interface of router R2F、The MAC address of the s0/0/0 interface of router R2
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 R1B、Host 1 looks in its ARP cache for the MAC address of router R1C、Host 1 addresses the frames to the MAC address of web server 2D、Host 1 sends the packets to router R1 to be forwarded to web server 2E、Host 1 sends a broadcast ARP request to obtain the MAC address of webserver2
Which action does the ping 172.18.1.1 size 5 command perform?（）A、It sends only five ping requests to the 172.18.1.1 destination.B、It sends a continuous ping with a packet length of five bytes to the 172.18.1.1 destination.C、It sends five rapid ping requests to the 172.18.1.1 destination.D、It sends a continuous rapid ping with a packet length of five bytes to the 172.18.1.1 destination.
Which two statements are correct when you use the reject parameter as the next-hop value for a static route?（）A、The packet is dropped and the packet's source is marked with the no-readvertise parameter.B、The system sends the packet back to the source.C、The packet is dropped from the network.D、The system sends an ICMP message back to the source of the packet.
在MSR路由器上，ping 命令的-m参数指定发送ICMP Echo Request报文的时间间隔，取值范围为1～65535，单位为毫秒，它的默认值为（）毫秒。A、1000B、100C、200D、2000
PING命令使用了哪种ICMP消息？（）A、RedirectB、Source quenchC、Echo request和Echo replyD、Destination unreachable
PING命令使用了哪种ICMP消息（）。A、RedirectB、Source quenchC、Echo request和Echor eplyD、Destination unreachable。
常用来进行网络连通性检查的Ping命令工具，它的工作原理为（）。A、向目标主机发送UDP Echo Request数据包，等待对方回应UDP Echo Reply数据包B、向目标主机发送ICMP Echo Request数据包，等待对方回应ICMP Echo Reply数据包C、向目标主机发送UDP Echo Reply数据包，等待对方回应ICMP Echo Request数据包D、向目标主机发送ICMP Echo Reply数据包，等待对方回应ICMP Echo Request数据包
A PC on a network segment sends data to another PC on a different segment.Which of the following correctly describe the correct order of how this data will be encapsulated?（）A、Data, Frame, Packet, Segment, BitB、Data, Frame, Segment, Packet, BitC、Data, Packet, Frame, Segment, BitD、Data, Packet, Segment, Frame, BitE、Data, Segment, Frame, Packet, BitF、Data, Segment, Packet, Frame, Bit
Overlay Transport Virtualization （OTV） overlay interface is a logical multiaccess and multicast- capable interface that must be explicitly defined by the user and where the entire OTV configuration is applied. Which statements are true about OTV overlay interface？（）A、 When an OTV edge device receives a Layer 2 frame destined for a remote data center site， the frame is logically forwarded to the overlay interface.B、 The OTV edge device performs the dynamic OTV encapsulation on the Layer 2 packet and sends it to the join interface toward the routed domain.C、 When the OTV edge device receives a Layer 2 frame destined for a remote data center site， the frame is logically forwarded to the join interface.D、 The OTV edge device performs the dynamic OTV encapsulation on the Layer 2 packet and sends it to the overlay interface toward the routed domain.
If the router R1 has a packet with a destination address 192.168.1.255, what describes the operation of the network（）。A、R1 will forward the packet out all interfaces.B、R1 will drop this packet because this it is not a valid IP address.C、As R1 forwards the frame containing this packet, Sw-A will add 192.168.1.255 to its MAC table.D、R1 will encapsulate the packet in a frame with a destination MAC address of FF-FF-FF-FF-FF-FFE、As R1 forwards the frame containing this packet, Sw-A will forward it to the device assigned the IP address of 192.168.1.255.
防止系统对ping请求做出回应，正确的命令是：（）。A、echo0/proc/sys/net/ipv4/icmp_ehco_ignore_allB、echo0/proc/sys/net/ipv4/tcp_syncookiesC、echo1/proc/sys/net/ipv4/icmp_echo_ignore_allD、echo1/proc/sys/net/ipv4/tcp_syncookies
单选题Host 1 sends a request for a file to remote sever1. Which destination address does Host 1 place f the packet containing the request（）。AThe Mac address of the NIC in Sever1BThe IP address of Server 1.CThe MAC address of the s0/0/0 interface of router R2DThe IP address of the s0/0/0 interface of router R1EThe IP address of the Fa0/0 interface of router R1
单选题R1 forwards a packet from Host 1 to remote Server 1. Which statement describes the use of a MAC as the frame carrying this packet leaves the s0/0/0 interface of R1（）。AThe frame does not have MAC addresses.BThe source MAC address in the frame is the MAC address of the NIC of Host 1.CThe source MAC address in the frame is the MAC address of the s0/0/0 interface of R1.DThe destination MAC address in the frame is the MAC address of the NICof server 1.EThe destination MAC address in the frame is the MAC address of the s0/0/0 interface of R2
单选题Host 1 sends an ICMP echo request to remote sever1. Layer2 header of the frame containing the ping packet（）。AThe IP address of sever 1.BThe MAC address of NIC in sever 1.CThe IP address of F0/0 interface of router R1.DThe MAC address of the Fa0/0 interface of router R1.EThe IP address of the s0/0/0 interface of router R2FThe MAC address of the s0/0/0 interface of router R2
单选题In a frame ，the MPLS label is imposed（）.AAfter the Layer3 header and before Layer2 headerBAfter the Layer2 header and before Layer3 headerCWithin the Layer 3 headerDBefore the layer 2 header
单选题Which action does the ping 172.18.1.1 size 5 command perform?（）AIt sends only five ping requests to the 172.18.1.1 destination.BIt sends a continuous ping with a packet length of five bytes to the 172.18.1.1 destination.CIt sends five rapid ping requests to the 172.18.1.1 destination.DIt sends a continuous rapid ping with a packet length of five bytes to the 172.18.1.1 destination.
单选题A PC on a network segment sends data to another PC on a different segment.Which of the following correctly describe the correct order of how this data will be encapsulated?（）AData, Frame, Packet, Segment, BitBData, Frame, Segment, Packet, BitCData, Packet, Frame, Segment, BitDData, Packet, Segment, Frame, BitEData, Segment, Frame, Packet, BitFData, Segment, Packet, Frame, Bit