Routing and Switching Essentials (Version 6) - Chapter 1-3 Exam
An administrator issues the ipv6 route 2001:db8:acad:1::/32 gigabitethernet0/0 2001:db8:acad:6::1 100 command on a router. What administrative distance is assigned to this route?
100
What are two functions of a router? (Choose two.)
A router connects multiple IP networks. It determines the best path to send packets.
Why are the pings from PC0 to Server0 not successful?
The static route to network 192.168.2.0 is misconfigured on Router1.
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 subnet mask
Refer to the exhibit. 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?
192.168.12.16
Refer to the exhibit. The network administrator needs to configure a default route on the Border router. Which command would the administrator use to configure a default route that will require the least amount of router processing when forwarding packets?
Border(config)# ip route 0.0.0.0 0.0.0.0 s0/0/1
Which two statements correctly describe the concepts of administrative distance and metric? (Choose two.)
Administrative distance refers to the trustworthiness of a particular route. Routes with the smallest metric to a destination indicate the best path.
Which route would be automatically created when a router interface is activated and configured with an IP address?
C 192.168.0.0/24 is directly connected, FastEthernet 0/0
Refer to the exhibit. What routing solution will allow both PC A and PC B to access the Internet with the minimum amount of router CPU and network bandwidth utilization?
Configure a static default route from R1 to Edge, a default route from Edge to the Internet, and a static route from Edge to R1.
What is a characteristic of a static route that matches all packets?
It identifies the gateway IP address to which the router sends all IP packets for which it does not have a learned or static route.
Which routing protocol is limited to smaller network implementations because it does not accommodate growth for larger networks?
RIP
Refer to the exhibit. Based on the partial output from the show ip route command, what two facts can be determined about the RIP routing protocol? (Choose two.)
RIP version 2 is running on this router and its RIP neighbor. The command no auto-summary has been used on the RIP neighbor router.
Which route is the best match for a packet entering a router with a destination address of 10.16.0.2?
S 10.16.0.0/24 [1/0] via 192.168.0.9
The network administrator configures the router with the ip route 172.16.1.0 255.255.255.0 172.16.2.2 command. How will this route appear in the routing table?
S 172.16.1.0 [1/0] via 172.16.2.2
Refer to the exhibit. What will the router do with a packet that has a destination IP address of 192.168.12.227?
Send the packet out the Serial0/0/0 interface.
What are two advantages of static routing over dynamic routing? (Choose two.)
Static routing is more secure because it does not advertise over the network. Static routing uses fewer router resources than dynamic routing.
Refer to the exhibit. The small company shown uses static routing. Users on the R2 LAN have reported a problem with connectivity. What is the issue?
R1 needs a static route to the R2 LAN.
A router is configured to participate in multiple routing protocol: RIP, EIGRP, and OSPF. The router must send a packet to network 192.168.14.0. Which route will be used to forward the traffic?
a 192.168.14.0/26 route that is learned via RIP
Which two parameters are used by EIGRP as metrics to select the best path to reach a network? (Choose two.)
bandwidth delay
Which two requirements are used to determine if a route can be considered as an ultimate route in a router's routing table? (Choose two.)
contain an exit interface contain a next-hop IP address
What type of route allows a router to forward packets even though its routing table contains no specific route to the destination network?
default 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 IP address
Which type of static route that is configured on a router uses only the exit interface?
directly connected static route
Refer to the exhibit. The network engineer for the company that is shown wants to use the primary ISP connection for all external connectivity. The backup ISP connection is used only if the primary ISP connection fails. Which set of commands would accomplish this goal?
ip route 0.0.0.0 0.0.0.0 s0/0/0 ip route 0.0.0.0 0.0.0.0 s0/1/0 10
What is the correct syntax of a floating static route?
ip route 209.165.200.228 255.255.255.248 10.0.0.1 120
Which type of route will require a router to perform a recursive lookup?
an ultimate route that is using a next hop IP address on a router that is not using CEF
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
When would it be more beneficial to use static routing instead of dynamic routing protocols?
on a network where dynamic updates would pose a security risk
Refer to the exhibit. The routing table for R2 is as follows: Gateway of last resort is not set 10.0.0.0/30 is subnetted, 2 subnets C 10.0.0.0 is directly connected, Serial0/0/0 C 10.0.0.4 is directly connected, Serial0/0/1 192.168.10.0/26 is subnetted, 3 subnets S 192.168.10.0 is directly connected, Serial0/0/0 C 192.168.10.64 is directly connected, FastEthernet0/0 S 192.168.10.128 [1/0] via 10.0.0.6 What will router R2 do with a packet destined for 192.168.10.129?
send the packet out interface Serial0/0/1
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 add a dynamic route for the destination network 0.0.0.0 to the routing table
What IPv6 static route can be configured on router R1 to make a fully converged network?
ipv6 route 2001:db8:10:12::/64 S0/0/1
Refer to the exhibit. What command would be used to configure a static route on R1 so that traffic from both LANs can reach the 2001:db8:1:4::/64 remote network?
ipv6 route 2001:db8:1:4::/64 2001:db8:1:3::2
When would it be more beneficial to use a dynamic routing protocol instead of static routing?
on a network where there is a lot of topology changes
Which three IOS troubleshooting commands can help to isolate problems with a static route? (Choose three.)
ping show ip route show ip interface brief
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?
remove the Ethernet header and configure a new Layer 2 header before sending it out S0/0/0
A network administrator configures a static route on the edge router of a network to assign a gateway of last resort. How would a network administrator configure the edge router to automatically share this route within RIP?
Use the default-information originate command.
Which packet-forwarding method does a router use to make switching decisions when it is using a forwarding information base and an adjacency table?
Cisco Express Forwarding
Refer to the exhibit. Which interface will be the exit interface to forward a data packet with the destination IP address 172.16.0.66?
Serial0/0/1
A company has several networks with the following IP address requirements: IP phones - 50 PCs - 70 IP cameras - 10 wireless access points - 10 network printers - 10 network scanners - 2 Which block of addresses would be the minimum to accommodate all of these devices if each type of device was on its own network?
172.16.0.0/24
Which dynamic routing protocol was developed to interconnect different Internet service providers?
BGP
Which software is used for a network administrator to make the initial router configuration securely?
terminal emulation client software
What is the effect of configuring the ipv6 unicast-routing command on a router?
to enable the router as an IPv6 router
Refer to the exhibit. Which two types of routes could be used to describe the 192.168.200.0/30 route? (Choose two.)
ultimate route level 2 child route
What two tasks do dynamic routing protocols perform? (Choose two.)
update and maintain routing tables network discovery
Refer to the graphic. Which command would be used on router A to configure a static route to direct traffic from LAN A that is destined for LAN C?
A(config)# ip route 192.168.4.0 255.255.255.0 192.168.3.2
Refer to the exhibit. What two commands will change the next-hop address for the 10.0.0.0/8 network from 172.16.40.2 to 192.168.1.2? (Choose two.)
A(config)# no ip route 10.0.0.0 255.0.0.0 172.16.40.2 A(config)# ip route 10.0.0.0 255.0.0.0 192.168.1.2
In order for packets to be sent to a remote destination, what three pieces of information must be configured on a host? (Choose three.)
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 Layer 1 statuses
Refer to the exhibit. 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.
What is a purpose of the network command when configuring RIPv2 as the routing protocol?
It identifies the interfaces that belong to a specified network.
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.
Consider the following command: ip route 192.168.10.0 255.255.255.0 10.10.10.2 5 How would an administrator test this configuration?
Manually shut down the router interface used as a primary route.
A network administrator enters the command copy running-config startup-config. Which type of memory will the startup configuration be placed into?
NVRAM
Which route would be used to forward a packet with a source IP address of 192.168.10.1 and a destination IP address of 10.1.1.1?
O 10.1.1.0/24 [110/65] via 192.168.200.2, 00:01:20, Serial0/1/0
What is a characteristic of an IPv4 loopback interface on a Cisco IOS router?
Only one loopback interface can be enabled on a router.
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.)
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. Which default static route command would allow R1 to potentially reach all unknown networks on the Internet?
R1(config)# ipv6 route ::/0 G0/1 fe80::2
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.
While configuring RIPv2 on an enterprise network, an engineer enters the command network 192.168.10.0 into router configuration mode. What is the result of entering this command?
The interface of the 192.168.10.0 network is sending only version 2 updates.
What occurs next in the router lookup process after a router identifies a destination IP address and locates a matching level 1 parent route?
The level 2 child routes are examined.
What happens to a static route entry in a routing table when the outgoing interface associated with that route goes into the down state?
The static route is removed from the routing table.
What is a disadvantage of using dynamic routing protocols?
They send messages about network status insecurely across networks by default.
What are two common types of static routes in routing tables? (Choose two)
a default static route a static route to a specific network
What route would have the lowest administrative distance?
a directly connected network
A destination route in the routing table is indicated with a code D. Which kind of route entry is this?
a route dynamically learned through the EIGRP routing protocol
Consider the following command: ip route 192.168.10.0 255.255.255.0 10.10.10.2 5 Which route would have to go down in order for this static route to appear in the routing table?
a static route to the 192.168.10.0/24 network
What is the purpose of the passive-interface command?
allows a router to receive routing updates on an interface but not send updates via that interface
Which two statements are true regarding classless routing protocols? (Choose two.)
allows for use of both 192.168.1.0/30 and 192.168.1.16/28 subnets in the same topology
A network administrator has entered a static route to an Ethernet LAN that is connected to an adjacent router. However, the route is not shown in the routing table. Which command would the administrator use to verify that the exit interface is up?
show ip interface brief
What two pieces of information are needed in a fully specified static route to eliminate recursive lookups? (Choose two.)
the interface ID exit interface the IP address of the next-hop neighbor
Why would a floating static route be configured with an administrative distance that is higher than the administrative distance of a dynamic routing protocol that is running on the same router?
to be used as a backup route