A router receives a packet on interface 172.16.45.66/26. The source IP of the packet is 172.16.45.127/26 and the destination is 172.16.46.191/26.How will the router handle the packet?()A、The destination is a host on another subnet, so the router will not forward the packet.B、The destination is a host on the same subnet, so the router will forward the packet.C、The destination is a broadcast address, so the router will not forward the packet.D、The destination is a network address, so the router will forward the packet.

A router receives a packet on interface 172.16.45.66/26. The source IP of the packet is 172.16.45.127/26 and the destination is 172.16.46.191/26.How will the router handle the packet?()

  • A、The destination is a host on another subnet, so the router will not forward the packet.
  • B、The destination is a host on the same subnet, so the router will forward the packet.
  • C、The destination is a broadcast address, so the router will not forward the packet.
  • D、The destination is a network address, so the router will forward the packet.

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阅读下面的短文,回答问题 [When an IP packet arrives at a router, generally the router looks at the destination address of the packet, and forwards the packet to one of its network interfaces. The forwarding decision is usually done by looking up the destination address from another data structure called a forwarding table. The forwarding table is created by the router using the routing table and possible routing policies existing in the router. The router then creates a table where it lists which networks are accessible through which of the routers network interfaces. An IP router looks at every IP packet individually and does the forwarding decision on a packet-by-packet basis. If something changes in the routers routing table, a packet can take a different route from a preceding packet even if it has the same destination.] From the paragraph above,we can see that the router ( ) a forwarding table according to the routing table and possible routing policies existing in the router. When an IP packet arrives at a router, the ( ) part of packet is normally checked by the router. An IP router checks every IP Packet individually and makes the forwarding decision based on ( ).A.is generating B.generate C.is generated D.generates A.forwarding table B.network interfaces C.routing policies D.destination address A.the destination address and network interfaces B.forwarding table and network interfaces C.the destination address and forward table D.routing policies and routing table

● An internet is a combination of networks connected by (71) . When a datagram goes from a source to a (72) , it will probably pass many (73) until it reaches the router attached to the destination network. A router receives a (74) from a network and passes it to another network. A router is usually attached to several networks. When it receives a packet, to which network should it pass the packet? The decision is based on optimization: Which of the available (75) is the optimum pathway?(71)A. modemsB. routersC. switchesD. computers(72)A. userB. hostC. cityD. destination(73)A. destinationsB. routersC. packetsD. computers(74)A. destinationB. resourceC. packetD. source(75)A. pathwaysB. routersC. diagramsD. calls

An internet is a combination of networks connected by (71) .When a datagram goes from a source to a (72) ,it will probably pass many (73) until it reaches the router attached to the destination network.A router receives a (74) from a network and passes it to another network.A router is usually attached to several networks.When it receives a packet,to which network should it pass the packet? The decision is based on optimization: Which of the available (75) is the optimum pathway?A.modemsB.routersC.switchesD.computers

Router VE1 has just received a packet and needs to route it. What two actions must this router take in order to route incoming packets? (Choose two)A. Inspect the routing table to select the best path to the destination network addresses.B. Validate sources of routing information.C. Inspect the ARP table to verify a legitimate source MAC address for each packet.D. Identify the destination network address of each packet.E. Verify the receipt of routed packets by the next hop router.F. Identify the source network address of each packet.

When an SRX series device receives an ESP packet, what happens?() A. If the destination address of the outer IP header of the ESP packet matches the IP address of the ingress interface, it willB. If the destination IP address in the outer IP header of ESP does not match the IP address of the ingress interface, it willC. If the destination address of the outer IP header of the ESP packet matches the IP address of the ingress interface, based packet.D. If the destination address of the outer IP header of the ESP packet matches the IP address of the ingress interface, based of inner header, it will decrypt the packet.

A router receives a packet on interface 172.16.45.66/26. The source IP of the packet is 172.16.45.127/26 and the destination is 172.16.46.191/26.How will the router handle the packet?() A. The destination is a host on another subnet, so the router will not forward the packet.B. The destination is a host on the same subnet, so the router will forward the packet.C. The destination is a broadcast address, so the router will not forward the packet.D. The destination is a network address, so the router will forward the packet.

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

The following configuration line was added to router R1 Access-list 101 permit ip 10.25.30.00.0.0.255 any What is the effect of this access list configuration?() A.ermit all packet smatching 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

Refer to the exhibit. What will Router1 do when it receives the data frame shown?() A.Router1 will strip off the source MAC address and replace it with the MAC address 0000.0c36.6965.B.Router1 will strip off the source IP address and replace it with the IP address 192.168.40.1.C.Router1 will strip off the destination MAC address and replace it with the MAC address 0000.0c07.4320.D. Router1 will strip off the destination IP address and replace it with the IP address of 192.168.40.1.E.Router1 will forward the data packet out interface FastEthernet0/1.F.Router1 will forward the data packet out interface FastEthernet0/2.

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

The following configuration line was added to router R1Access-list 101 permit ip 10.25.30.00.0.0.255 anyWhat is the effect of this access list configuration?() A.ermit 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

Refer to the exhibit. What does the (*) represent in the output?() A.Packet is destined for a local interface to the router.B.Packet was translated, but no response was received from the distant device.C.Packet was not translated, because no additional ports are available.D.Packet was translated and fast switched to the destination.

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

The following configuration line was added to router R1 Access-list 101 permit ip 10.25.30.00.0.0.255 any What is the effect of this access list configuration?()A、ermit all packet smatching 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

The following configuration line was added to router R1 Access-list 101 permit ip 10.25.30.00.0.0.255 any What is the effect of this access list configuration?()A、ermit 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

If an edge Label Switch Router (LSR) is properly configured,which three combinations are possible?()A、A received IP packet is forwarded based on the IP destination address and the packet is sent as an IP packet.B、An IP destination exists in the IP forwarding table. A received labeled packet is dropped because the label is not found in the LFIB table.C、There is an MPLS label-switched path toward the destination. A received IP packet is dropped because the destination is not found in the IP forwarding table.D、A received IP packet is forwarded based on the IP destination address and the packet is sent as a labeled packet.E、A received labeled IP packet is forwarded based upon both the label and the IP address.F、A received labeled packet is forwarded based on the label. After the label is swapped,the newly labeled packet is sent.

The EtherChannel between your LAN switch and the Internet router is not load-balancing efficiently. On the switch,there are several workstations with valid IP ranges. Which load-balance algorithms can you use in the switch in order to optimize this load balancing? ()A、source IP addressB、destination IP addressC、per-packet load balanceD、destination MAC addressE、source MAC address

An internet is a combination of networks connected by (1). When a datagram goes from a source to a (2), it will probably pass many (3) until it reaches the router attached to the destination network. A router receives a (4) from a network and passes it to another network. A router is usually attached to several networks. When it receives a packet, to which network should it pass the packet? The decision is based on optimization: Which of the available (5) is the optimum pathway?空白(2)处应选择()A、userB、hostC、cityD、destination

An internet is a combination of networks connected by (1). When a datagram goes from a source to a (2), it will probably pass many (3) until it reaches the router attached to the destination network. A router receives a (4) from a network and passes it to another network. A router is usually attached to several networks. When it receives a packet, to which network should it pass the packet? The decision is based on optimization: Which of the available (5) is the optimum pathway?空白(4)处应选择()A、destinationB、resourceC、packetD、source

An internet is a combination of networks connected by (1). When a datagram goes from a source to a (2), it will probably pass many (3) until it reaches the router attached to the destination network. A router receives a (4) from a network and passes it to another network. A router is usually attached to several networks. When it receives a packet, to which network should it pass the packet? The decision is based on optimization: Which of the available (5) is the optimum pathway? 空白(1)处应选择()A、modemsB、routersC、switcherD、computers

A router receives an IPv6 packet which is 2000 bytes in length. The MTU of the outgoing interface is 1500 bytes. What action will the router take?()A、forwards the packetB、fragments the packetC、drops the packet silentlyD、drops the packet and sends an ICMP message

A router receives an IPv6 packet which is 2000 bytes in length. The MTU of the outgoing interface is 1500 bytes. Which action will the router take?()A、Forward the packet.B、Fragment the packet.C、Drop the packet silently.D、Drop the packet and send an ICMPv6 message.

A router receives a packet from a neighbor with an MPLS shim header value of 0.What does the router do with this packet?()A、It performs a label pop operation and an IP lookup.B、It performs a label swap operation and an IP lookup.C、It sends an error message toward the egress router.D、It sends an error message toward the ingress router.

给了两段documentation里的描述,问这个时候发哪种类型的ICMP包。 The interface on which the packet comes into the router is the same interface on which the packet gets routed out. The subnet or network of the source IP address is on the same subnet or network of the next-hop IP address of the routed packet.

When an SRX series device receives an ESP packet, what happens?()A、If the destination address of the outer IP header of the ESP packet matches the IP address of the ingress interface, it willB、If the destination IP address in the outer IP header of ESP does not match the IP address of the ingress interface, it willC、If the destination address of the outer IP header of the ESP packet matches the IP address of the ingress interface, based packet.D、If the destination address of the outer IP header of the ESP packet matches the IP address of the ingress interface, based of inner header, it will decrypt the packet.

问答题给了两段documentation里的描述,问这个时候发哪种类型的ICMP包。 The interface on which the packet comes into the router is the same interface on which the packet gets routed out. The subnet or network of the source IP address is on the same subnet or network of the next-hop IP address of the routed packet.

单选题A router receives a packet on interface 172.16.45.66/26. The source IP of the packet is 172.16.45.127/26 and the destination is 172.16.46.191/26.How will the router handle the packet?()AThe destination is a host on another subnet, so the router will not forward the packet.BThe destination is a host on the same subnet, so the router will forward the packet.CThe destination is a broadcast address, so the router will not forward the packet.DThe destination is a network address, so the router will forward the packet.

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