CCNA Routing and Switching Essentials Chapter 4

B. 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? A. to add a dynamic route for the destination network 0.0.0.0 to the routing table B. to provide a route to forward packets for which there is no route in the routing table C. to forward all packets to the device with IP address 209.165.200.226 D. to forward packets destined for the network 0.0.0.0 to the device with IP address 209.165.200.226

B. 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? A. No packets with a destination network of 172.16.1.0 have been sent to R1. B. The interface fa0/0 has not been activated. C. The subnet mask is incorrect for the IPv4 address. D. The configuration needs to be saved first.

C. 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? A. Router(config)# ip route ? B. Router(config)# ip forward-protocol ? C. Router(config)# router ? D. Router(config)# service ?

C. destination IP address F. source 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.) A. source ARP table B. destination MAC address C. destination IP address D. Layer 2 header E. source MAC address F. source IP address

A. IP address D. default gateway E. subnet mask

In order for packets to be sent to a remote destination, what three pieces of information must be configured on a host? (Choose three.) A. IP address B. DHCP server address C. DNS server address D. default gateway E. subnet mask F. hostname

D. 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? A. end B. IPv6 enable C. clockrate 128000 D. no shutdown

A. directly connected networks E. 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.) A. directly connected networks B. a configured static route to the network 209.165.200.224 C. routes that are learned through the OSPF routing protocol D. a configured default route E. routes that are learned through the EIGRP routing protocol

A. The interface Fa0/1 is configured with IPv6 address 2001:DB8:ACAD:A::12. D. R1 does not know a route to any remote networks.

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.) A. The interface Fa0/1 is configured with IPv6 address 2001:DB8:ACAD:A::12. B. Packets that are destined for the network 2001:DB8:ACAD:2::54/128 will be forwarded through Fa0/0. C. The network FF00::/8 is installed through a static route command. D. R1 does not know a route to any remote networks. E. Packets that are destined for the network 2001:DB8:ACAD:2::/64 will be forwarded through Fa0/1.

B. directly connected network C. local host route

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.) A. route that is learned through the OSPF routing protocol B. directly connected network C. local host route D. route that is learned through the EIGRP routing protocol E. static route

D. 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? A. the MAC address of S2 B. the MAC address of File_server1 C. the MAC address of S1 D. the MAC address of the G0/0 interface on R1 F. the MAC address of the G0/0 interface on R2

C. 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? A. It indicates that this is a default route. B. It indicates that this is a directly connected route. C. It indicates that this route was learned via EIGRP. D. It indicates that this route has been deleted from the routing table.

D. 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? A. Drop the packet. B. Send the packet out the GigabitEthernet0/0 interface. C. Send the packet out the GigabitEthernet0/1 interface. D. Send the packet out the Serial0/0/0 interface.

D. source Layer 2 address

What address changes as a packet travels across multiple Layer 3 Ethernet hops to its final destination? A. source IP B. destination port C. destination IP D. source Layer 2 address

A. It connects multiple IP networks. B. It determines the best path to send packets.

What are two functions of a router? (Choose two.) A. It connects multiple IP networks. B. It determines the best path to send packets. C. It manages the VLAN database. D. It increases the size of the broadcast domain. E. It controls the flow of data via the use of Layer 2 addresses.

D. Routers support a variety of interface types. Switches typically support Ethernet interfaces.

What is one feature that distinguishes routers from Layer 2 switches? A. Switches move packets from one physical interface to another. Routers do not. B. Routers can be configured with IP addresses. Switches cannot. C. Switches use tables of information to determine how to process data traffic. Routers do not. D. Routers support a variety of interface types. Switches typically support Ethernet interfaces.

B. IP addresses E. Layer 1 statuses

What two pieces of information are displayed in the output of the show ip interface brief command? (Choose two.) A. speed and duplex settings B. IP addresses C. next-hop addresses D. MAC addresses E. Layer 1 statuses F. interface descriptions

B. link-local

What type of IPv6 address is required as a minimum on IPv6 enabled interfaces? A. loopback B. link-local C. global unicast D. static E. unique local

C. 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? A. an RFI (Request for Information) message B. a multicast to any Layer 3 devices that are connected to the local network C. an ARP request D. an ICMP ping

routing

When a router receives a packet, it examines the destination address of the packet and looks in the __________ table to determine the best path to use to forward the packet.

C. 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? A. ipv6 enable B. ipv6 address ipv6-address/prefix-length C. ipv6 address ipv6-address/prefix-length eui-64 D. ipv6 address ipv6-address/prefix-length link-local

C. It is automatically updated and maintained by routing protocols.

Which statement describes a route that has been learned dynamically? A. It has an administrative distance of 1. B. It is identified by the prefix C in the routing table. C. It is automatically updated and maintained by routing protocols. D. It is unaffected by changes in the topology of the network.

B. destination IP address D. 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.) A. destination MAC address B. destination IP address C. network number D. subnet mask E. source MAC address

C. Administrative distance refers to the trustworthiness of a particular route. E. Routes with the smallest metric to a destination indicate the best path.

Which two statements correctly describe the concepts of administrative distance and metric? (Choose two.) A. A router first installs routes with higher administrative distances. B. The value of the administrative distance can not be altered by the network administrator. C. Administrative distance refers to the trustworthiness of a particular route. D. The metric varies depending which Layer 3 protocol is being routed, such as IP. E. Routes with the smallest metric to a destination indicate the best path. F. The metric is always determined based on hop count.