CCNA 2
1) Route Source Protocol 2) Destination Network 3) Metric 4) Administrative Distance 5) Next Hop 6) Route Timestamp A) 172.16.2.2 B) 10.3.0.0 C) 21024000 D) 3 E) 1 F) 00:22:15 G) D H) C
1) G 2) B 3) C 4) E 5) A 6) F
What are two functions of a router? (Choose two.) 1. A router connects multiple IP networks 2. It controls the flow of data via the use of Layer 2 addresses 3. It determines the best path to send packets 4. It provides segmentation at Layer 2
1. A router connects multiple IP networks 2. It determines the best path to send packets
A network administrator enters the command copy running-config startup-config. Which type of memory will the startup configuration be placed into? flash RAM NVRAM ROM
NVRAM
WHAT ROUTE WOULD HAVE THE LOWEST ADMINISTRATIVE DISTANCE? a directly connected network a static route a route received through the EIGRP routing protocol a route received through the OSPF routing protocol
A directly connected network
Which packet-forwarding method does a router use to make switching decisions when it is using a forwarding information base and an adjacency table? fast switching Cisco Express Forwarding process switching flow process
Cisco Express Forwarding
WHICH TWO STATEMENTS CORRECTLY DESCRIBE THE CONCEPTS OF ADMINISTRATIVE DISTANCE AND METRIC? (CHOOSE TWO.) Administrative distance refers to the trustworthiness of a particular route. A router first installs routes with higher administrative distances. The value of the administrative distance cannot be altered by the network administrator. Routes with the smallest metric to a destination indicate the best path. The metric is always determined based on hop count. The metric varies depending which Layer 3 protocol is being routed, such as IP.
Administrative distance refers to the trustworthiness of a particular route. Routes with the smallest metric to a destination indicate the best path.
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
Bandwidth & delay
In order for packets to be sent to a remote destination, what three pieces of information must be configured on a host? (Choose three.) hostname IP address subnet mask default gateway DNS server address DHCP server address
IP address subnet mask default gateway
What two pieces of information are displayed in the output of the show ip interface brief command? (Choose two.) IP addresses MAC addresses Layer 1 statuses* next-hop addresses interface descriptions speed and duplex settings
IP addresses & Layer 1 statuses
What does R1 use as the MAC address of the destination when constructing the frame that will go from R1 to Server B? If the destination MAC address that corresponds to the IPv4 address is not in the ARP cache, R1 sends an ARP request The packet is encapsulated into a PPP frame, and R1 adds the PPP destination address to the frame R1 uses the destination MAC address of S1 R1 leaves the field blank and forwards the data to the PC
If the destination MAC address that corresponds to the IPv4 address is not in the ARP cache, R1 sends an ARP request
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 It is a logical interface internal to the routerp addressed & Layer 1 statuses Only one loopback interface can be enabled on a router It is assigned to a physical port and can be connected to other devices
It is a logical interface internal to the router
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 interface on R1 used to send data that is destined for 10.1.1.0/24 It is the R1 interface through which the EIGRP update was learned. It is the interface on the final destination router that is directly connected to the 10.1.1.0/24 network. 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 R1 used to send data that is destined for 10.1.1.0/24
A network administrator issues the show ipv6 route command on R1. What two conclusions can be drawn from the routing table? (Choose 2) R1 does not know a route to any remote networks The network FF00::/8 is installed through a static route command 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::/64 will be forwarded through Fa0/1 Packets that are destined for the network 2001:DB8:ACAD:2::54/128 will be forwarded through Fa0/0
R1 does not know a route to any remote networks & The interface Fa0/1 is configured with IPv6 address 2001:DB8:ACAD:A::12
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 Serial0/0/0 interface Send the packet out the GigabitEthernet0/0 interface Send the packet out the GigabitEthernet0/1 interface
Send the packet out the Serial0/0/0 interface
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 Serial0/0/0 interface. Send the packet out the GigabitEthernet0/0 interface. Send the packet out the GigabitEthernet0/1 interface.
Send the packet out the Serial0/0/0 interface.
PC A is requesting a packet from Server B. What IPV4 destination address should you use? 1. Server B MAC address 2. Server B IP address 3. Router IP address 4. Router MAC address 5. PC A IP address 6. PC A MAC address
Server B IP address
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 The configuration needs to be saved first. 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 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. The configuration needs to be saved first. 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 interface fa0/0 has not been activated.
WHAT DOES R1 USE AS THE MAC ADDRESS OF THE DESTINATION WHEN CONSTRUCTING THE FRAME THAT WILL GO FROM R1 TO SERVER B? If the destination MAC address that corresponds to the IPv4 address is not in the ARP cache, R1 sends an ARP request. The packet is encapsulated into a PPP frame, and R1 adds the PPP destination address to the frame. R1 uses the destination MAC address of S1. R1 leaves the field blank and forwards the data to the PC.
The router sends an ARP address
WHAT ARE TWO COMMON TYPES OF STATIC ROUTES IN ROUTING TABLES? (CHOOSE TWO) a default static route a built-in static route by IOS a static route to a specific network a static route shared between two neighboring routers a static route converted from a route that is learned through a dynamic routing protocol
a static route to a specific network & a default static route
When a router receives a packet, what information must be examined in order for the packet to be forwarded to a remote destination? destination MAC address destination IP address source IP address source MAC address
destination IP address
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 IP address destination MAC address source MAC address subnet mask network number
destination IP address a& subnet mask
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 interface on R1 used to send data that is destined for 10.1.1.0/24. It is the R1 interface through which the EIGRP update was learned. It is the interface on the final destination router that is directly connected to the 10.1.1.0/24 network. 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 R1 used to send data that is destined for 10.1.1.0/24.
What's missing? R1(config)# interface serial 0/0/0 R1(config-if)# description Link to R2 R1(config-if)# ip address 209.165.200.225 255.255.255.252 R1(config-if)# exit R1(config)#
no shutdown
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
remove the Ethernet header and configure a new Layer 2 header before sending it out S0/0/0
REFER TO THE EXHIBIT. 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
remove the Ethernet header and configure a new Layer 2 header before sending it out S0/0/0
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.
routing
Which software is used for a network administrator to make the initial router configuration securely? SSH client software Telnet client software HTTPS client software terminal emulation client software
terminal emulation client software
WHAT IS THE EFFECT OF CONFIGURING THE IPV6 UNICAST-ROUTING COMMAND ON A ROUTER? to assign the router to the all-nodes multicast group to enable the router as an IPv6 router to permit only unicast packets on the router to prevent the router from joining the all-routers multicast group
to enable the router as an IPv6 router
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 forward all packets 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 packets destined for the network 0.0.0.0 to the device with IP address 209.165.200.226 to provide a route to forward packets for which there is no route in the routing table
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 forward all packets 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 packets destined for the network 0.0.0.0 to the device with IP address 209.165.200.226 to provide a route to forward packets for which there is no route in the routing table
to provide a route to forward packets for which there is no route in the routing table