CISCO 2 CHAPTER 4 V5
to provide a route to forward packets for which there is no route in the routing table*
A network administrator configures a router by the command ip route 0.0.0.0 0.0.0.0 209.165.200.226. What is the purpose of this command? to provide a route to forward packets for which there is no route in the routing table to forward packets destined for the network 0.0.0.0 to the device with IP address 209.165.200.226 to add a dynamic route for the destination network 0.0.0.0 to the routing table to forward all packets to the device with IP address 209.165.200.226
The interface fa0/0 has not been activated.*
A network administrator configures the interface fa0/0 on the router R1 with the command ip address 172.16.1.254 255.255.255.0. However, when the administrator issues the command show ip route, the routing table does not show the directly connected network. What is the possible cause of the problem? The interface fa0/0 has not been activated. No packets with a destination network of 172.16.1.0 have been sent to R1. The subnet mask is incorrect for the IPv4 address. The configuration needs to be saved first.
Router(config)# router ?*
A network administrator is implementing dynamic routing protocols for a company. Which command can the administrator issue on a router to display the supported routing protocols? Router(config)# router ? Router(config)# ip forward-protocol ? Router(config)# service ? Router(config)# ip route ?
source IP address* destination IP address*
A packet moves from a host on one network to a device on a remote network within the same company. If NAT is not performed on the packet, which two items remain unchanged during the transfer of the packet from source to destination? (Choose two.) destination MAC address source ARP table source IP address destination IP address source MAC address Layer 2 header
It is the interface on R1 used to send data that is destined for 10.1.1.0/24.*
Consider the following routing table entry for R1: D 10.1.1.0/24 [90/2170112] via 209.165.200.226, 00:00:05, Serial0/0/0 What is the significance of the Serial0/0/0? It is the R1 interface through which the EIGRP update was learned. It is the interface on R1 used to send data that is destined for 10.1.1.0/24. It is the interface on the next-hop router when the destination IP address is on the 10.1.1.0/24 network. It is the interface on the final destination router that is directly connected to the 10.1.1.0/24 network.
remove the Ethernet header and configure a new Layer 2 header before sending it out S0/0/0*
If PC1 is sending a packet to PC2 and routing has been configured between the two routers, what will R1 do with the Ethernet frame header attached by PC1? nothing, because the router has a route to the destination network remove the Ethernet header and configure a new Layer 2 header before sending it out S0/0/0 open the header and replace the destination MAC address with a new one open the header and use it to determine whether the data is to be sent out S0/0/0
IP address* subnet mask* default gateway*
In order for packets to be sent to a remote destination, what three pieces of information must be configured on a host? (Choose three.) default gateway hostname DNS server address DHCP server address IP address subnet mask
192.168.12.16*
PC A sends a request to Server B. What IPv4 address is used in the destination field in the packet as the packet leaves PC A? 192.168.10.1 192.168.11.1 192.168.12.16 192.168.10.10
no shutdown*
Refer to the exhibit. A network administrator has configured R1 as shown. When the administrator checks the status of the serial interface, the interface is shown as being administratively down. What additional command must be entered on the serial interface of R1 to bring the interface up? no shutdown end clockrate 128000 IPv6 enable
directly connected networks* routes that are learned through the EIGRP routing protocol
Refer to the exhibit. A network administrator issues the show ip route command on R2. What two types of routes are installed in the routing table? (Choose two.) directly connected networks routes that are learned through the OSPF routing protocol a configured default route routes that are learned through the EIGRP routing protocol a configured static route to the network 209.165.200.224
R1 does not know a route to any remote networks.* The interface Fa0/1 is configured with IPv6 address 2001:DB8:ACAD:A::12.*
Refer to the exhibit. A network administrator issues the show ipv6 route command on R1. What two conclusions can be drawn from the routing table? (Choose two.) Packets that are destined for the network 2001:DB8:ACAD:2::/64 will be forwarded through Fa0/1. R1 does not know a route to any remote networks. The interface Fa0/1 is configured with IPv6 address 2001:DB8:ACAD:A::12. Packets that are destined for the network 2001:DB8:ACAD:2::54/128 will be forwarded through Fa0/0. The network FF00::/8 is installed through a static route command.
local host route* directly connected network*
Refer to the exhibit. A network administrator issues the show ipv6 route command on R1. Which two types of routes are displayed in the routing table? (Choose two.) route that is learned through the EIGRP routing protocol directly connected network route that is learned through the OSPF routing protocol static route local host route
the MAC address of the G0/0 interface on R1*
Refer to the exhibit. PC1 attempts to connect to File_server1 and sends an ARP request to obtain a destination MAC address. Which MAC address will PC1 receive in the ARP reply? the MAC address of File_server1 the MAC address of S2 the MAC address of the G0/0 interface on R2 the MAC address of S1 the MAC address of the G0/0 interface on R1
It indicates that this route was learned via EIGRP.*
Refer to the exhibit. What is the purpose of the highlighted field in the line that is displayed from the show ip route command? It indicates that this is a directly connected route. It indicates that this route has been deleted from the routing table. It indicates that this route was learned via EIGRP. It indicates that this is a default route.
Send the packet out the Serial0/0/0 interface.*
Refer to the exhibit. What will the router do with a packet that has a destination IP address of 192.168.12.227? Drop the packet. Send the packet out the GigabitEthernet0/1 interface. Send the packet out the Serial0/0/0 interface. Send the packet out the GigabitEthernet0/0 interface.
source Layer 2 address*
What address changes as a packet travels across multiple Layer 3 Ethernet hops to its final destination? source Layer 2 address source IP destination port destination IP
a static route to a specific network* a default static route*
What are two common types of static routes in routing tables? (Choose two) a default static route a static route shared between two neighboring routers a static route to a specific network a built-in static route by IOS a static route converted from a route that is learned through a dynamic routing protocol
It determines the best path to send packets.* It connects multiple IP networks.*
What are two functions of a router? (Choose two.) It manages the VLAN database. It increases the size of the broadcast domain. It controls the flow of data via the use of Layer 2 addresses. It determines the best path to send packets. It connects multiple IP networks.
static route to specific network* default static route*
What are two types of static routes in routing tables? (choose two) default static route built in static route by IOS static route to specific network static route converted from a route that is learned through a dynamic routing protocol. static route shared btween two neighboring router
the ipv6 unicast-routing command*
What command will enable a router to begin sending messages that allow it to configure a link-local address without using an IPv6 DHCP server? the ipv6 route ::/0 command a static route the ip routing command the ipv6 unicast-routing command
If the destination MAC address that corresponds to the IPv4 address is not in the ARP cache, R1 sends an ARP request.*
What does R1 use as the MAC address of the destination when constructing the frame that will go from R1 to Server B? R1 uses the destination MAC address of S1. If the destination MAC address that corresponds to the IPv4 address is not in the ARP cache, R1 sends an ARP request. R1 leaves the field blank and forwards the data to the PC. The packet is encapsulated into a PPP frame, and R1 adds the PPP destination address to the frame.
It is a logical interface internal to the router.*
What is a characteristic of an IPv4 loopback interface on a Cisco IOS router? The no shutdown command is required to place this interface in an UP state. Only one loopback interface can be enabled on a router. It is a logical interface internal to the router. It is assigned to a physical port and can be connected to other devices.
Routers support a variety of interface types. Switches typically support Ethernet interfaces.*
What is one feature that distinguishes routers from Layer 2 switches? Switches use tables of information to determine how to process data traffic. Routers do not. Switches move packets from one physical interface to another. Routers do not. Routers support a variety of interface types. Switches typically support Ethernet interfaces. Routers can be configured with IP addresses. Switches cannot.
a directly connected network
What route would have the lowest administrative distance? a route received through the EIGRP routing protocol a directly connected network a route received through the OSPF routing protocol a static route
Layer 1 statuses* IP addresses*
What two pieces of information are displayed in the output of the show ip interface brief command? (Choose two.) MAC addresses Layer 1 statuses IP addresses next-hop addresses interface descriptions speed and duplex settings
link-local*
What type of IPv6 address is required as a minimum on IPv6 enabled interfaces? static global unicast link-local loopback unique local
an ARP request*
When a computer is pinging another computer for the first time, what type of message does it place on the network to determine the MAC address of the other device? an RFI (Request for Information) message an ARP request an ICMP ping a multicast to any Layer 3 devices that are connected to the local network
ipv6 address ipv6-address/prefix-length eui-64*
Which command is used to configure an IPv6 address on a router interface so that the router will combine a manually specified network prefix with an automatically generated interface identifier? ipv6 enable ipv6 address ipv6-address/prefix-length eui-64 ipv6 address ipv6-address/prefix-length link-local ipv6 address ipv6-address/prefix-length
terminal emulation client software*
Which software is used for a network administrator to make the initial router configuration securely? terminal emulation client software HTTPS client software SSH client software Telnet client software
It is automatically updated and maintained by routing protocols.*
Which statement describes a route that has been learned dynamically? It is identified by the prefix C in the routing table. It is automatically updated and maintained by routing protocols. It is unaffected by changes in the topology of the network. It has an administrative distance of 1.
destination IP address* subnet mask*
Which two items are used by a host device when performing an ANDing operation to determine if a destination address is on the same local network? (Choose two.) destination MAC address network number destination IP address source MAC address subnet mask*
bandwidth* delay*
Which two network parameters are used by EIGRP as metrics to select the best path to reach a network? (Choose Two.) jitter bandwidth resiliency hop count delay confidentiality
bandwidth* delay*
Which two parameters are used by EIGRP as metrics to select the best path to reach a network? (Choose two.) hop count bandwidth jitter resiliency delay confidentiality
The value of the administrative distance can not be altered by the network administrator. Routes with the smallest metric to a destination indicate the best path.* Administrative distance refers to the trustworthiness of a particular route.*
Which two statements correctly describe the concepts of administrative distance and metric? (Choose two.) The metric varies depending which Layer 3 protocol is being routed, such as IP. A router first installs routes with higher administrative distances. The value of the administrative distance can not be altered by the network administrator. Routes with the smallest metric to a destination indicate the best path. Administrative distance refers to the trustworthiness of a particular route. The metric is always determined based on hop count.
it is a logical int internal to the router*
what is a characteristic of an IPv4 interface on a Cisco IOS router? it is assigned to a physical port and can be connected to other devices. only one loopback int can be enable on a router it is a logical int internal to the router the no shut command is required to place this in UP