网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
单选题
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-FF
E
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.
参考答案
参考解析
解析：
暂无解析
更多 “单选题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.” 相关考题
考题
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
考题
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.
考题
Examine the following configuration on Router R1. R1‘s show ip route 172.16.4.1 command list s a route with outgoing interface S0/1/1. Host 172.16.3.3 uses telnet to connect to host 172.16.4.1.What will Router R1 do with the packets generated by host 172.16.3.3 because of the telnet,assuming the packets enter R1‘s F0/0 interface?（）interface Fastethernet 0/0ip address 172.16.1.1 255.255.255.0ip policy route - map Q2!route - map Q2 permitmatch ip address 101set interface s0/0/1!access - list 101 permit tcp host 172.16.3.3 172.16.4.0 0.0.0.255A. The packet will be forwarded out S0/0 /1, or not at all.B. The packet will be forwarded out S0/0/1 if it is up.C. The packet will be forwarded out S0/1/1 if it is up.D. The packet will be forwarded out S0/1/1 if it is up, or if it is not up, out s0/0/1.E. The packet will be forwarded o ut S0/0/1 if it is up, or if it is not up, out s0/1/1.
考题
Router R1 exists in an Enterprise that uses EIGRP as its routing protocol. The show ip route command output on router R1 lists the following phrase: Gateway of last resort is 1.1.1.1 to network 2.0.0.0.Whic h of the following is most likely to have caused this output to occur on R1?（）A. R1 has been configured with an ip default- network 2.0.0.0 command.B. R1 has been configured with an ip route 0.0.0.0 0.0.0.0 1.1.1.1 command.C. R1 has been configured with an ip route 2.0.0.0 255.0.0.0 1.1.1.1 command.D. Another router has been configured with an ip default - network 2.0.0.0 command.E. Another router has been configured with an ip route 2.0.0.0 255.0.0.0 1.1.1.1 command.
考题
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?()
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.
考题
Refer to the exhibit. Network 10.0.0.0／8 is being advertised to autonomous system 65550 via both external links. Which statement about the preferred path to the 10.0.0.0／8 network is true? ()
A. Router R2 will be preferred because it has the higher neighbor IP address.B. Router R2 will be preferr ed because its neighbor has a lower autonomous system number.C. Router R1 will be preferred because it has a lower local preference.D. Router R2 will be preferred because it has a higher local preference.E. Router R1 will be preferred because its nei ghbor has the higher autonomous system number.F. Router R1 will be preferred because it has the lower neighbor IP address.
考题
Refer to the exhibit. EIGRP is configured on all routers in the network. On a basis of the show ip eigrp topology output provided, what conclusion can be deri ved? ()
A.Router R1 is waiting for a reply from the neighbor 10.1.2.1 to the hello message sent out inquiring for a second successor to network 10.6.1.0/24B.Router R1 can send traffic destined for network 10.6.1.0/24 out of interface FastEthernet0/0C.Router R1 is waiting for a reply from the neighbor 10.1.2.1 to the hello message sent out before it declares the neighbor unreachableD.Router R1 is waiting for a reply from the neighbor 10.1.2.1 in response to the query sent out about network 10 .6.1.0/24
考题
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 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
考题
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
考题
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.
考题
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()。
A.The frame does not have MAC addresses.B.The source MAC address in the frame is the MAC address of the NIC of Host 1.C.The source MAC address in the frame is the MAC address of the s0/0/0 interface of R1.D.The destination MAC address in the frame is the MAC address of the NICof server 1.E.The destination MAC address in the frame is the MAC address of the s0/0/0 interface of R2
考题
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.
考题
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
考题
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
考题
You administer a network that uses two routers， R1 and R2， configured as an HSRP group to provide redundancy for the gateway. Router R1 is the active router and has been configured as follows： R1#configure terminal R1（config）#interface fa0/0 R1（config-if）#ip address 10.10.0.5 255.255.255.0 R1（config-if）#standby 1 priority 150 R1（config-if）#standby preempt delay minimum 50 R1（config-if）#standby 1 track interface fa0/2 15 R1（config-if）#standby 1 ip 10.10.0.20 Which of the following describes the effect the standby preempt delay minimum 50 command will have on router R1？（）A、 The HSRP priority for router R1 will increase to 200.B、 Router R1 will become the standby router if the priority drops below 50.C、 The HSRP priority for router R1 will decrease to 50 points when Fa0/2 goes down. D、 Router R1 will wait 50 seconds before attempting to preempt the active router.
考题
Router R1, a branch router, connects to the Internet using DSL. Some traffic flows through a GRE and IPsec tunnel, over the DSL connection, destined for an Enterprise network. Which of the following answers best describes the router's logic that tells the router, for a given packet, to apply GRE encapsulation to the packet?（）A、When the packet received on the LAN interface is permitted by the ACL listed on the tunnel greacl command under the incoming interfaceB、When routing the packet, matching a route whose outgoing interface is the GRE tunnel interfaceC、When routing the packet, matching a route whose outgoing interface is the IPsec tunnel interfaceD、When permitted by an ACL that was referenced in the associated crypto map
考题
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.
考题
What must be configured on the network in order for users on the Internet to view web pages located on Web Server 2?（）A、On router R2， configure a default static route to the 192.168.1.0 network.B、On router R2， configure DNS to resolve the URL assigned to Web Server 2 to the 192.168.1.10 address.C、On router R1， configure NAT to translate an address on the 209.165.100.0/24 network to 192.168.1.10.D、On router R1， configure DHCP to assign a registered IP address on the 209.165.100.0/24 network to Web Server 2.
考题
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 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
考题
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.
考题
If the PFE does not have a route to the destination address of a packet, which action will be taken?（）A、The PFE floods the packet out of all interfaces.B、The PFE drops the packet and sends a destination unreachable notification back to source device.C、The PFE forwards the packet to the routing engine for furtherprocessing.D、The PFE queues the packet and sends are quest for a layer3 lookup to the routing engine.
考题
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?（）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.
考题
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（）。A
The frame does not have MAC addresses.B
The source MAC address in the frame is the MAC address of the NIC of Host 1.C
The source MAC address in the frame is the MAC address of the s0/0/0 interface of R1.D
The destination MAC address in the frame is the MAC address of the NICof server 1.E
The destination MAC address in the frame is the MAC address of the s0/0/0 interface of R2
考题
单选题Router R1, a branch router, connects to the Internet using DSL. Some traffic flows through a GRE and IPsec tunnel, over the DSL connection, destined for an Enterprise network. Which of the following answers best describes the router's logic that tells the router, for a given packet, to apply GRE encapsulation to the packet?（）A
When the packet received on the LAN interface is permitted by the ACL listed on the tunnel greacl command under the incoming interfaceB
When routing the packet, matching a route whose outgoing interface is the GRE tunnel interfaceC
When routing the packet, matching a route whose outgoing interface is the IPsec tunnel interfaceD
When permitted by an ACL that was referenced in the associated crypto map
考题
单选题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
考题
单选题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
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
考题
单选题You administer a network that uses two routers， R1 and R2， configured as an HSRP group to provide redundancy for the gateway. Router R1 is the active router and has been configured as follows： R1#configure terminal R1（config）#interface fa0/0 R1（config-if）#ip address 10.10.0.5 255.255.255.0 R1（config-if）#standby 1 priority 150 R1（config-if）#standby preempt delay minimum 50 R1（config-if）#standby 1 track interface fa0/2 15 R1（config-if）#standby 1 ip 10.10.0.20 Which of the following describes the effect the standby preempt delay minimum 50 command will have on router R1？（）A
The HSRP priority for router R1 will increase to 200.B
Router R1 will become the standby router if the priority drops below 50.C
The HSRP priority for router R1 will decrease to 50 points when Fa0/2 goes down. D
Router R1 will wait 50 seconds before attempting to preempt the active router.
热门标签
最新试卷