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1) Refer to the exhibit. Which statement correctly describes how R1 will determine the best path to R2?
ans:
R1 will install an EIGRP route using network B in its routing table because the administrative distance of EIGRP is lower than RIP.

2) Which two statements are true regarding classless routing protocols? (Choose two.)
ans:
sends subnet mask information in routing updates
allows for use of both 192.168.1.0/30 and 192.168.1.16/28 subnets in the same topology

3) Which command would the network administrator issue to determine if load balancing is in effect on a router?
ans:
show ip route

4) Which statement is true regarding routing protocols?
ans:
EIGRP uses DUAL to calculate the shortest path and can be configured to do unequal cost load balancing.

5) An engineer creates a static route by entering the Router(config)# ip route 10.0.0.0 255.255.255.0 192.168.1.2 command. What can be concluded about this route?
ans:
The administrative distance of this route is 1.

6) Which two conditions would create a setting where the use of a distance-vector routing protocol would be efficient? (Choose two.)
ans:
the network is using a hub and spoke topology
the network is using a flat design

7) Refer to the exhibit. If RIP is the routing protocol, what is the value of the metric from router A to network 192.168.5.0/24?
ans:
3

8) What is the purpose of a routing protocol?
ans:
It allows a router to share information about known networks with other routers.

9) Which two statements correctly describe the concepts of administrative distance and metric? (Choose two.)
ans:
Administrative distance refers to the trustworthiness of a particular route.
Routes with the smallest metric to a destination indicate the best path.

10)Which of the following best describes the operation of distance vector routing protocols?
ans:
They send their routing tables to directly connected neighbors.

11) Which of the following is associated with link-state routing protocols?
ans:
shortest-path first calculations

12) The following line of code is displayed in a routing table:
R 209.165.201.0/24 [120/2] via 192.168.252.2, 00:00:16, S0/0/0
What can be concluded from this output?
ans:
The value, 120, is used to determine the best path when a router has more than one routing protocol configured for the same destination network.

13) Why is fast convergence desirable in networks that use dynamic routing protocols?
ans:
Routers may make incorrect forwarding decisions until the network has converged.

14) Which of the following conditions must be met in order for a network to have converged
ans:
The routers in the network are operating with consistent routing knowledge.

15) Which two statements are true regarding the advantages of the use of static routes? (Choose two).

increased security
the administrator maintains control over routing

16) Which two statements are true regarding metrics? (Choose two.)
ans:
EIGRP uses bandwidth as a metric.
OSPF uses cost based on bandwidth as a metric.

17) What will be the result of the following commands?
ORL(config)# interface fastethernet 0/0
ORL(config-if)# ip address 172.16.3.1 255.255.255.0
ORL(config-if)# no shutdown
ans:
A routing table entry is made to the 172.16.3.0 network with a code of “C”.

18) Refer to the exhibit. Router1 and Router2 are running EIGRP. All interfaces are operational and packets can be forwarded between all networks. What information will be found in the routing table for Router1?
ans:
The administrative distance of the route to network 172.16.0.0 will be 90.

19) A growing medium-sized manufacturing company recently began to have routing instability issues. The company uses static routes and has a mixture of over 30 Cisco and non-Cisco routers. The network administrator has decided to convert the network to dynamic routing. What characteristics of protocols should be considered in this selection process?
ans:
OSPF can be used between the routers.

20) A router learns two paths with equal metrics to a destination network via the RIP routing protocol. How will the router handle packets to the destination network?
ans:
The router will install both routes in the routing table and load balance between the two.

21) The following line of code is present in the routing table:
O 10.16.1.0/27 [110/129] via 192.168.1.5, 00:00:05, Serial0/0/1
What does the number 129 indicate in this output?
ans:
The cost for this link has a value of 129.

22) When multiple routing protocols have a route to the same destination network, what determines which route is installed in the routing table?
ans:
lowest administrative distance

1. Refer to the exhibit. Given the output in the exhibit, how would a clock rate be determined for this link?
ans:
The rate configured on the DCE determines the clock rate

2. Which piece of information is available from examining the output of the command show ip interface brief?
ans:
Interface IP address

3. Refer to the exhibit. Which set of commands will configure static routes that will allow the WinterPark and the Altamonte routers to deliver packets from each LAN and direct all other traffic to the Internet?
ans:
WinterPark(config)# ip route 0.0.0.0 0.0.0.0 192.168.146.1
Altamonte(config)# ip route 10.0.234.0 255.255.255.0 192.168.146.2
Altamonte(config)# ip route 0.0.0.0 0.0.0.0 s0/1

4. The output of the Router# show interfaces serial 0/1 command displays the following:

Serial0/1 is up, line protocol is down.

What is the most likely cause for the line protocol being down?
ans:
No clock rate has been set

5. Which two statements describe functions or characteristics of CDP? (Choose two.)
ans:
It starts up automatically and allows the device to detect directly connected neighbor devices that use CDP
It allows systems to learn about each other even if different network layer protocols are configured.

6. What happens to a static route entry in a routing table when the outgoing interface is not available?
ans:
The route is removed from the table.

7. What happens to a static route entry in a routing table when the outgoing interface is not available?
ans:
The route is removed from the table

8. The routers in the diagram use the subnet assignments shown. What is the most efficient route summary that can be configured on Router3 to advertise the internal networks to the cloud?
ans:
192.1.1.0/25

9.Refer to the exhibit. What is the significance of the /8 in the route to the 10.0.0.0 network?
ans:
It indicates the number of consecutive bits, from the left, in the destination IP address of a packet that must match 10.0.0.0 to use that route

10. A router has one static route configured to each destination network. Which two scenarios would require an administrator to alter the static routes that are configured on that router? (Choose two.)
ans:
The destination network no longer exists.
A topology change occurs where the existing next-hop address or exit interface is not accessible.

11. Refer to the exhibit. A company network engineer is assigned to establish connectivity between the two Ethernet networks so that hosts on the 10.1.1.0/24 subnet can contact hosts on the 10.1.2.0/24 subnet. The engineer has been told to use only static routing for these company routers. Which set of commands will establish connectivity between the two Ethernet networks?
ans:
R1(config)# ip route 10.1.1.0 255.255.255.0 192.168.0.2
R2(config)# ip route 10.1.2.0 255.255.255.0 192.168.0.1

12. What two devices are responsible for converting the data from the WAN service provider into a form acceptable by the router? (Choose two).
ans: a modem
a CSU/DSU device

13.Which of the following is true regarding CDP and the graphic shown?
ans:
By default, Router A will receive CDP advertisements from routers B and C.

14. Refer to the exhibit. How will packets destined to the 172.16.0.0 network be forwarded?
ans:
Router1 will perform recursive lookup and packet will exit S0/0.

15. 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.)
ans:
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

16. A static route that points to the next hop IP will have what administrative distance and metric in the routing table?
ans:
administrative distance of 1 and metric of 0

17. Hosts on two separate subnets cannot communicate. The network administrator suspects a missing route in one of the routing tables. Which three commands can be used to help troubleshoot Layer 3 connectivity issues? (Choose three.)
ans:
ping
traceroute
show ip route

18. Which of the following are displayed by the Router# show cdp neighbors command? (Choose three.)
ans:
platform
holdtime
local interface

19. A network administrator enters the following command into Router1: ip route 192.168.0.0 255.255.255.0 S0/1/0. Router1 then receives a packet that is destined for 192.168.0.22/24. After finding the recently configured static route in the routing table, what does Router1 do next to process the packet?
ans:
encapsulates the packet into a frame for the WAN link and forwards the packet out the S0/1/0 interface

20. Refer to the exhibit. Which static route should be configured on Router1 so that host A will be able to reach host B on the 172.16.0.0 network?
ans:
ip route 172.16.0.0 255.255.0.0 S0/0/0

21. Refer to the exhibit. What two commands are required to provide connectivity between the 192.168.1.0 and 10.0.0.0 networks without requiring recursive lookup? (Choose two.)
ans:
A(config)# ip route 10.0.0.0 255.0.0.0 s 0/1/0
B(config)# ip route 192.168.1.0 255.255.255.0 s 0/0/0

22. Which address can be used to summarize networks 172.16.0.0/24 thru 172.16.7.0/24?
ans:
172.16.0.0/21

23. Why is it advisable to enter a next-hop IP address when creating a static route whose exit interface is an Ethernet network?
ans:
In a multi-access network, the router cannot determine the next-hop MAC address for the Ethernet frame without a next-hop address.

1. If a router cannot find a valid configuration file during the startup sequence, what will occur?
• The startup sequence will reset.
• The router will prompt the user for a response to enter setup mode.
• The startup sequence will halt until a valid configuration file is acquired.
• The router will generate a default configuration file based on the last valid configuration.
• The router will monitor local traffic to determine routing protocol configuration requirements.

2. Refer to the exhibit. The network administrator has configured the router with the interface IP addresses shown for the directly connected networks. Pings from the router to hosts on the connected networks or pings between router interfaces are not working. What is the most likely problem?
• The destination networks do not exist.
• The IP addresses on the router interfaces must be configured as network addresses and not host addresses.
• The interfaces must be enabled with the no shutdown command.
• Each interface must be configured with the clock rate command.

3. Refer to the exhibit. What can be concluded from the routing table output in the exhibit? (Choose two.)
• This router only has two interfaces.
• The router interfaces are not operational yet.
• This router is configured to forward packets to remote networks.
• The FastEthernet0/0 and Serial0/0/0 interfaces of this router were configured with an IP address and the no shutdown command.
• An IP packet received by this router with a destination address of 198.18.9.1 will be forwarded out of the Serial0/0/0 interface.

4. Refer to the exhibit. The frame shown in the exhibit was received by the router. The router interfaces are operational. How will the router process this frame? (Choose two.)
• The router will change the source and destination IP address in the packet before forwarding the frame.
• The router will change the frame type to one supported by the WAN link before forwarding the frame.
• The router will use the destination MAC address to determine which interface to forward the packet.
• The router will look up the MAC address of the S0/0/0 interface in the ARP table and add it to the frame before forwarding.
• The frame was received on the Fa0/0 interface of the router and will be switched to the S0/0/0 interface.
• The frame was received on the S0/0/0 interface of the router and will be switched to the Fa0/0 interface.

5. Passwords can be used to restrict access to all or parts of the Cisco IOS. Select the modes and interfaces that can be protected with passwords. (Choose three.)
• VTY interface
• console interface
• Ethernet interface
• secret EXEC mode
• privileged EXEC mode
• router configuration mode

6. Which two statements correctly describe the components of a router? (Choose two.)
• RAM permanently stores the configuration file used during the boot sequence.
• ROM contains diagnostics executed on hardware modules.
• NVRAM stores a backup copy of the IOS used during the boot sequence.
• Flash memory does not lose its contents during a reboot.
• ROM contains the most current and most complete version of the IOS.
• Flash contains boot system commands to identify the location of the IOS

7.Refer to the exhibit. After host 2 is connected to the switch on the LAN, host 2 is unable to communicate with host 1. What is the cause of this problem?
• The subnet mask of host 2 is incorrect.
• Host 1 and host 2 are on different networks.
• The switch needs an IP address that is not configured.
• The router LAN interface and host 1 are on different networks.
• The IP address of host 1 is on a different network than is the LAN interface of the router.

8. Which are functions of a router? (Choose three.)
• packet switching
• extension of network segments
• segmentation of broadcast domains
• selection of best path based on logical addressing
• election of best path based on physical addressing

9. Refer to the exhibit. All routers have a route in its routing table to each network that is shown in the exhibit. Default routes have not been issued on these routers. What can be concluded about how packets are forwarded in this network? (Choose two.)
• If RouterC receives a packet that is destined for 10.5.1.1, it will be forwarded out interface Fa0/0.
• If RouterA receives a packet that is destined for 192.168.3.146, it will be forwarded out interface S0/0/1.
• If RouterB receives a packet that is destined for 10.5.27.15, it will be forwarded out interface S0/0/1.
• If RouterB receives a packet that is destined for 172.20.255.1, it will be forwarded out interface S0/0/0.
• If RouterC receives a packet that is destined for 192.16.5.101, it will be forwarded out interface S0/0/1.

10. The serial connection shown in the graphic needs to be configured. Which configuration commands must be made on the Sydney router to establish connectivity with the Melbourne site? (Choose three.)
• Sydney(config-if)# ip address 201.100.53.2 255.255.255.0
• Sydney(config-if)# no shutdown
• Sydney(config-if)# ip address 201.100.53.1 255.255.255.224
• Sydney(config-if)# clock rate 56000
• Sydney(config-if)# ip host Melbourne 201.100.53.2

11. Rfer to the exhibit. What can be concluded from the output of the running-configuration of a router?
• The passwords are encrypted.
• The current configuration was saved to NVRAM.
• The configuration that is shown will be the one used on the next reboot.
• The commands that are displayed determine the current operation of the router.

12. Refer to the exhibit. Host A pings host B. When R4 accepts the ping into the Ethernet interface, what two pieces of header information are included? (Choose two.)
• source IP address: 192.168.10.129
• source IP address: BBBB.3333.5677
• destination IP address: 192.168.10.33
• destination IP address: 192.168.10.134
• destination MAC address: 9999.DADC.1234

13. What is the outcome of entering these commands?
• R1(config)# line vty 0 4
• R1(config-line)# password check123
• R1(config-line)# login
• ensures that a password is entered before entering user EXEC mode
• sets the password to be used for connecting to this router via Telnet
• requires check123 to be entered before the configuration can be saved
• creates a local user account for logging in to a router or switch

14. Which of the following is the correct flow of routines for a router startup?
• load bootstrap, load IOS, apply configuration
• load bootstrap, apply configuration, load IOS
• load IOS, load bootstrap, apply configuration, check hardware
• check hardware, apply configuration, load bootstrap, load IOS

15. What three processes does a router execute when it receives a packet from one network that is destined for another network? (Choose three.)
• decapsulates the Layer 3 packet by stripping off the Layer 2 frame header
• uses the destination MAC Address in the IP Header to look up the next-hop address in the routing table
• leaves the Layer 2 frame header intact when decapsulating the Layer 3 packet
• uses the destination IP Address in the IP header to look up the next-hop address in the routing table
• encapsulates the Layer 3 packet into the new Layer 2 frame and forwards it out the exit interface
• encapsulates the Layer 3 packet into a special Layer 1 frame and forwards it to the exit interface

16. The network administrator needs to connect two routers directly via their FastEthernet ports. What cable should the network administrator use?
• straight-through
• rollover
• cross-over
• serial

17. Which two statements describe characteristics of load balancing? (Choose two.)
• Load balancing occurs when a router sends the same packet to different destination networks. Load balancing occurs when a router sends the same packet to different destination networks.
• Load balancing allows a router to forward packets over multiple paths to the same destination network.
• Unequal cost load balancing is supported by EIGRP.
• If multiple paths with different metrics to a destinations exist, the router cannot support load balancing.

18. What information about the router and its startup process can be gathered from the output of the show version command? (Choose three.)
• the last restart method
• the command buffer contents
• the amount of NVRAM and FLASH used
• the configuration register settings
• the location from where the IOS loaded

19. Which interfaces in the exhibit could be used for a leased line WAN connection? (Choose two.)
• 1
• 2
• 3
• 4
• 5
• 6

20. From what location can a router load the Cisco IOS during the boot process? (Choose two.)
• RAM
• TFTP server
• NVRAM
• setup routine
• Flash memory
• terminal

21. A network administrator has just entered new configurations into Router1. Which command should be executed to save configuration changes to NVRAM?
• Router1# copy running-config flash
• Router1(config)# copy running-config flash
• Router1# copy running-config startup-config
• Router1(config)# copy running-config startup-config
• Router1# copy startup-config running-config
• Router1(config)# copy startup-config running-config

22. What is the default sequence for loading the configuration file?
• NVRAM, FLASH, ROM
• FLASH, TFTP,CONSOLE
• NVRAM, TFTP, CONSOLE
• FLASH, TFTP, ROM

23. What header address information does a router change in the information it receives from an attached Ethernet interface before information is transmitted out another interface?
• only the Layer 2 source address
• only the Layer 2 destination address
• only the Layer 3 source address
• only the Layer 3 destination address
• the Layer 2 source and destination address
• the Layer 3 source and destination address

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