CCNA3 Final a.docx

8/2/2019 CCNA3 Final a.docx

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Take Assessment - DRSEnt Final - CCNA Discovery: Introducing Routing and Switching in the

Enterprise (Version 4.0)

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The first default route will be installed into the routing table if there is traffic with an IP address

that is destined for the 192.168.100.0 network.

/This is expected because the link to ISP1 is active. If the link to ISP1 goes down, then the first

default route will be installed into the routing table.

The first default route cannot be installed into the routing table unless the administrator

manually disables the second default route with the no ip route 0.0.0.0 0.0.0.0 172.16.1.1 command.

2 What are two features of an extended IP ACL? (Choose two.)

It uses numbers 1 through 99 for identification.

/It can permit or deny traffic based on source or destination address.

It detects malicious attacks against the network and logs them on a server.

/It can filter traffic based on the protocol and port numbers.

It encrypts traffic between hosts.

3 Which two items does ACL logging report? (Choose two.)

ACL number

number of runts and giants

/number of fragmented packets

/source and destination addresses

number of packets with VLAN tags applied


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4

Refer to the exhibit. What is the significance of the value 120 in the line R 192.168.4.0/24 [120/1] via

192.168.2.2, 00:00:26, Serial0/0/0?

It represents the amount of time before the entry will expire.

It represents the amount of time that the entry has been in the table.

/It is the value that is used to compare routes from different routing protocols.

It is the number of hops the packet must take to reach the destination.

5

Refer to the exhibit. Router R1 connects to the Internet as shown and is configured with a static default

route. A network administrator is currently configuring OSPF on R1 and wants the static default route to

propagate to the neighbors of R1. What must be configured on R1 in order for it to propagate the route

to its neighbors once OSPF is configured?

Issue the network 10.0.0.0 command.

/Enter the default-information originate command.

Configure the 0.0.0.0/0 network in area 0.

OSPF will automatically advertise the default route because it is a directly connected route.

6 What are two characteristics of EIGRP? (Choose two.)


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It supports a maximum hop count of 15.

/It sends small hello packets to maintain knowledge of its neighbors.

/It forwards complete routing tables in its updates to neighboring routers.

It supports equal and unequal cost load balancing.

It supports only one network layer protocol.

7

Refer to the exhibit. An administrator sees this error message after entering commands to configure a

router interface. Which command could the administrator enter that would avoid the error?

Router(config-if)# ip address 192.168.4.0/24

/Router(config-if)# ip address 192.168.4.1 255.255.255.0

Router(config-if)# ip address 192.168.4.0 255.255.255.240

Router(config-if)# ip address 192.168.4.255 255.255.255.0

8 Which WAN connection method uses a PVC?

leased line

ISDN

DSL

/Frame Relay


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9

Refer to the exhibit. If R4 is announcing all shown internal networks as a summary address to the ISP,

which summary address will be most specific?

192.168.1.0/22

192.168.4.0/21

192.168.6.0/23

/192.168.8.0/21

192.168.4.0/22

10 Which subprotocol does PPP use to establish, maintain, test, and terminate a point-to-

point link?

/LCP

NCP

IPCP

IPXCP

11 Which routing protocol uses RTP for reliable route update delivery?

RIPv1


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RIPv2

OSPF

/EIGRP

12 What are two differences between RIPv1 and RIPv2? (Choose two.)

/RIPv1 broadcasts routing updates to 255.255.255.255 while RIPv2 does not.

RIPv1 sends subnet mask information in the routing update but RIPv2 does not.

/In contrast to RIPv1, RIPv2 allows the use of discontiguous networks.

RIPv2 is a classful routing protocol while RIPv1 is a classless protocol.

RIPv1 supports an authentication mechanism but RIPv2 does not.

13

Refer to the exhibit. The network administrator has implemented NAT on R1. Which two addresses are

valid inside global addresses? (Choose two.)

192.168.1.1

192.168.1.2

198.133.219.1

/198.133.219.102

/198.133.219.103


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14 Which configurable variable is used to determine the election of a spanning tree root

bridge?

/lowest bridge priority

lowest native VLAN ID

highest VTP revision number

highest management VLAN IP address

15

Refer to the exhibit. Assuming that the RIPv1 routing protocol is enabled and all networks have been

correctly configured on each router, which statement is true?

All packets from H1 that are destined to H2 will arrive at H2.

/None of the packets from H1 that are destined to H2 will arrive at H2.

Approximately half the traffic from H1 that is destined to H2 will reach R3.

Some of the packets from H1 that are destined to H2 will be sent to the switch that is connected

to network 192.168.3.64/26.



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Refer to the exhibit. Both routers are configured to use the EIGRP routing protocol. However, when the

show ip eigrp neighbors command is issued at R1, the output displays that the routers are unable to

establish adjacency. What is the possible cause of this problem?

/EIGRP routing is incorrectly configured at R1.

The autonomous system number is the same on both routers.

The no auto-summary command is applied on both routers.

The IP address of the serial interfaces of both routers is incorrectly configured.

18 How can a network administrator determine if network traffic has matched an ACL if

there is no syslog server configured on the network?

/Issue the show access-lists command.

Delete the ACL and add it back, noting changes in traffic flow.

Remove the ACL from any configured interface and note traffic changes.

Verify the counters on the router interface and see if they are incrementing.

19

Refer to the exhibit. Which two statements are true about the output that is shown? (Choose two.)

/The feasible distance to network 172.20.2.0 is 2172416.

/The reported distance to network 172.20.4.0 is 2172416.

Serial 0/0/1 represents the next hop interface for network 172.20.4.0.

Two routes in the routing table would be used to load-balance traffic to network 172.20.3.0.


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The letter P represents that the algorithm is calculating and the routes are not in use.

20 Which feature of RSTP differentiates it from STP?

/PortFast

UplinkFast

active topology

five port states

21

Refer to the exhibit. What is the purpose of the command: RouterA(config)# access-list 1 permit

192.168.16.0 0.0.0.255?

It identifies traffic on all inside interfaces to be translated and given access to the ISP router.

It identifies traffic from the fa0/1 interface to be translated and given access to the ISP router.

It allows traffic from the ISP to reach all of the inside interfaces.

/It identifies traffic from the fa0/0 interface to be translated and given access to the ISP router.

It allows traffic from the ISP router to the fa0/1 interface.


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22 An administrator is configuring a new router to permit out-of-band management access.

Which set of commands will allow the required login using a password of cisco?

Router(config)# line vty 0 4

Router(config-line)# password manage

Router(config-line)# exit

Router(config)# enable password cisco

/Router(config)# line vty 0 4

Router(config-line)# password cisco

Router(config-line)# login

Router(config)# line console 0


Router(config-line)# login

Router(config)# line console 0


Router(config-line)# exit

Router(config)# service password-encryption

23 What information is displayed in the output of the show version command on a

router?

interface addresses

routing table entries

/amount of flash memory

configured routing protocols


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24 What will allow a LAN switched network to maintain VLAN configuration consistency

across the network?

Enable CDP on all switch access ports.

Configure DTP on all trunk ports.

/Enable STP on all switches.

Configure VTP on all switches.

25

Refer to the exhibit. Routers R1 and R2 are directly connected with a crossover cable and configured for

single area OSPF but are unable to exchange any routes. What is the likely cause?

Both routers have the same priority.

The configured hello intervals are not the same.

The router ID of R1 must be on the same network as the router ID of R2.

/The OSPF interface network type must be point-to-point for the connection between the

routers.

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Refer to the exhibit. Router1 and Router2 are both running RIPv2 with autosummarization disabled.

Which subnet mask will Router1 associate with network 192.168.4.16/28?

255.255.0.0

255.255.240.0

255.255.255.0

/255.255.255.240

255.255.255.248

27

Refer to the exhibit. A network technician is connecting a new PC to port Fa0/9. What are two

characteristics of this implementation? (Choose two.)

The PC is a member of VLAN 30.

The PC belongs to the default native VLAN.

/The PC does not know its VLAN assignment.

Broadcast messages sent from the PC will be seen by all devices.

/A Layer 3 device is required for the PC to communicate with hosts on other VLANs.

28 A Frame Relay service provider is reviewing a contract with a potential customer. Which

term would be used when referencing the minimum guaranteed bandwidth that is provided on each

virtual circuit?

EIR


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/CIR

Tc

Bc

DE

29 In order for a VLAN to be created on a switch, what configuration parameter is

required?

VTP domain name

/VLAN number

VLAN IP address

VLAN database name

30

Refer to the exhibit. A network administrator has configured a PPP connection between two routers. All

attempts fail that use PPP to establish the serial link between the routers. The administrator issues the

command show ip interface serial 0/0/0 on router RA and it indicates that the line protocol is down.

What could be a cause of this problem?

Both routers should use interface S0/0/0.

/The usernames are misconfigured on both routers.

The password should be configured to match the hostname.

The IP address on interface S0/0/1 on router RC is incorrect.


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32 What are two WAN protocols that define parameters for data encapsulation? (Choose

two.)

/PPP

V.35

X.21

/HDLC

EIA/TIA-232

33 Which address is used to access a switch from a remote location in order to make

configuration changes?

the default gateway that is configured on the switch

the IP address of the management VLAN interface on the switch

the default gateway that is configured on the management workstation

/the IP address configured on the VTY line that is used to establish an incoming connection to

the switch

34


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Refer to the exhibit. OSPF has been configured as a routing protocol on all routers in OSPF area 0. Based

on the cost value of the links, which path will be selected by the SPF algorithm to forward traffic from

router R4 to network A?

R4-R2-R1

R4-R3-R1

R4-R2-R3-R1

/R4-R3-R2-R1

35 At what point in the enterprise network are packets examined prior to entering the

network?

campus core

/provider edge

/enterprise edge

enterprise branch

36

Refer to the exhibit. The network administrator has configured R1, R2, and R3 to use RIPv2, and thenetwork is fully converged. The hosts on the internal network are able to access R2, but they are unable

to access the Internet.

How can the administrator solve this problem?


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Enable the Serial0/0/0 interface of R2.

/Configure a default route on R2 via Serial0/0/0 and propagate it to R1 and R3 using RIPv2.

Configure a default route on the ISP via Serial0/0/0.

Configure the correct subnet mask on the Serial0/0/0 interface of R2.

37

Refer to the exhibit. EIGRP has been configured for all routers in the topology. Given the exhibited

metric values, which path will be selected by the DUAL algorithm as a successor and feasible successors

or feasible successor for traffic that travels from router A to router E?

/Path A-B-E will be selected as a successor. Both paths A-C-E and A-D-E will be selected as

feasible successors.

Path A-D-E will be selected as a successor. Both paths A-B-E and A-C-E will be selected as

feasible successors.

Path A-B-E will be selected as a successor. Path A-C-E will be selected as a feasible successor.

Path A-D-E will be selected as a successor. Path A-B-E will be selected as a feasible successor.

38

Refer to the exhibit. The command debug ip rip was used on a router. From the exhibited output, what

can an administrator determine about the RIP protocol that is running on the router?


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RIPv2 is globally configured on the router.

Interface Fa0/0 is configured to receive only RIPv2 updates.

/Interface S0/0/0 is configured to send both RIPv1 and RIPv2 updates.

The router has received a RIP update about the 172.16.3.0 network from a neighboring router.

39 Which two addresses are RFC 1918 private addresses? (Choose two.)

/10.192.32.67

/64.10.10.2

172.31.220.7

172.168.12.1

192.16.0.1

40

Refer to the exhibit. In what sequence (from first to last) does an OSPF router check the parameters

listed when selecting the DR?

/C, B, A, D

D, C, B, A

A, B, C, D

A, C, B, D

/B, C, A, D


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41

Refer to the exhibit. All routers are configured to use the EIGRP routing protocol, and the network

administrator has configured the serial interface with the displayed commands. Which summary route

will show in the routing table of R1 as a result of these commands?

a route pointing to the FastEthernet0/0 interface

a route pointing to the Serial0/0/0 interface

/a route pointing to the Null0 interface

a route pointing to the loopback0 interface

42 Which OSPF neighbor state indicates that two neighbors are synchronized and have

formed adjacencies?

/full

init

2-way

exstart

loading

exchange


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43

Refer to the exhibit. Which two options correctly map the network layers and the components of the

Cisco Enterprise Architectures to the functionalities they provide on the network? (Choose two.)

Option 1

/Option 2

/Option 3

/Option 4

Option 5

Option 6

44

Refer to the exhibit. All routers are configured to use OSPF with the default configuration. The network

administrator wants to ensure that R1 will be the DR when the routers are booted.

What are two ways the network administrator could accomplish this goal?

Configure the OSPF priority value of the Fa0/0 interface of R1 to 0.

Configure the router ID of R2, R3, and R4 to a higher value than R1.

Change the priority value of the Fa0/0 interface of R2, R3, and R4 to 255.

/Configure a loopback interface on R1 with an IP address higher than any IP

address on the other routers.


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Configure the OSPF priority value of the Fa0/0 interface of R1 to a higher value than the Fa0/0

interface of any other router.

45

Refer to the exhibit. Which VTP function will this switch perform?

It will create, change and share local VLAN information with other switches in the XYZ domain.

It will forward to other switches the VLANs that are created in Switch1.

It will back up the VTP database for domain XYZ.

/It will forward VTP configuration information for domain XYZ.



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192.168.20.1

/192.168.20.9

48 A network administrator is configuring an edge router to support external access to

several internal web servers that have private IP addresses. Which type of address resolution would be

appropriate for this scenario?

PAT

static PAT

/static NAT

dynamic NAT

49

Refer to the exhibit. A network administrator has configured EIGRP authentication between routers R1

and R2. After the routing tables are reviewed, it is noted that neither router is receiving EIGRP updates.

What is a possible cause for this failure?

The same key chain name must be used on each router.

The same number of key strings must be used on each router.

The key string should be used in interface mode instead of the key chain.

/The same autonomous system numbers must be used in the interface configurations of each

router.

The authentication configuration is correct, issue the show ip eigrp neighbors command to

troubleshoot the issue.


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50 What will be the two wildcard masks required in an extended access list statement that

blocks traffic to host 192.168.5.45 from the 172.16.240.0/27 network? (Choose two.)

/0.0.0.0

255.255.240.0

255.255.255.255

0.0.31.255

255.255.255.240

/0.0.0.31


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CCNA3 Final a.docx