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Question No: 6
Which two options are components of a dual stack? (Choose two)
A. EIGRP
B. OSPF
C. IPv6 traffic
D. IPv4 traffic
E. Layer 3 switch
F. Layer 2 switch
Answer: C,D
Question No: 7
CORRECT TEXTRoute.com is a small IT corporation that is attempting to implement the network shown in the exhibit. Currently the implementation is partially completed. OSPF has been configured on routers Chicago and NewYork. The SO/O interface on Chicago and the SO/1 interface on NewYork are in Area 0. The loopbackO interface on NewYork is in Area 1. However, they cannot ping from the serial interface of the Seattle router to the loopback interface of the NewYork router. You have been asked to complete the implementation to allow this ping.
ROUTE.com's corporate implementation guidelines require:
u2022 The OSPF process ID for all routers must be 10.
u2022 The routing protocol for each interface must be enabled under the routing process.
u2022 The routing protocol must be enabled for each interface using the most specific wildcard mask possible.
u2022The serial link between Seattle and Chicago must be in OSPF area 21.
u2022OSPF area 21 must not receive any inter-area or external routes.
Network Information Seattle
S0/0 192.168.16.5/30 - Link between Seattle and Chicago Secret Password: cisco
Chicago
S0/0 192.168.54.9/30 - Link between Chicago and NewYork S0/1 192.168.16.6/30 - Link between Seattle and Chicago Secre Password: cisco
NewYork
S0/1 192.168.54.10/30 - Link between Chicago and NewYork Loopback0 172.16.189.189
Secret Password: cisco
Answer:
Here is the solution below:
Explanation:
Note: In actual exam, the IP addressing, OSPF areas and process ID, and router hostnames may change, but the overall solution is the same.
Seattleu2021s S0/0 IP Address is 192.168.16.5/30. So, we need to find the network address and wildcard mask of 192.168.16.5/30 in order to configure the OSPF.
IP Address: 192.168.16.5 /30
Subnet Mask: 255.255.255.252
Here subtract 252 from 2565, 256-252 = 4, hence the subnets will increment by 4.
First, find the 4th octet of the Network Address:
The 4th octet of IP address (192.168.16.5) belongs to subnet 1 (4 to 7).
Network Address: 192.168.16.4
Broadcast Address: 192.168.16.7
Lets find the wildcard mask of /30.
Subnet Mask: (Network Bits u2013 1u2021s, Host Bits u2013 0u2021s)
Lets find the wildcard mask of /30:
Now we configure OSPF using process ID 10 (note the process ID may change to something else in real exam).
Seattle>enable Password: Seattle#conf t
Seattle(config)#router ospf 10
Seattle(config-router)#network 192.168.16.4 0.0.0.3 area 21
One of the tasks states that area 21 should not receive any external or inter-area routes (except the default route).
Seattle(config-router)#area 21 stub Seattle(config-router)#end Seattle#copy run start
Chicago Configuration:
Chicago>enable Password: cisco Chicago#conf t
Chicago(config)#router ospf 10
We need to add Chicagou2021s S0/1 interface to Area 21 Chicago(config-router)#network 192.168.16.4 0.0.0.3 area 21
Again, area 21 should not receive any external or inter-area routes (except the default route).
In order to accomplish this, we must stop LSA Type 5 if we donu2021t want to send external routes. And if we donu2021t want to send inter-area routes, we have to stop LSA Type 3 and Type 4. Therefore we want to configure area 21 as a totally stubby area.
Chicago(config-router)#area 21 stub no-summary Chicago(config-router)#end
Chicago#copy run start
The other interface on the Chicago router is already configured correctly in this scenario, as well as the New York router so there is nothing that needs to be done on that router.
Question No: 8
Which of the following is a GRE Tunnel characteristic?
A. GRE impose more CPU overhead than IPSec on VPN gateways
B. GRE tunnels can run through IPsec tunnels.
C. GRE Tunnel doesn't have support for IPv6
D. GRE consists of two sub-protocols: Encapsulated Security Payload (ESP) and Authentication Header (AH).
Answer: B
Explanation:
If you run an IPsec tunnel through a GRE tunnel then we call it as "IPsec over GRE"
Question No: 9
PPPoE is composed of which two phases?
A. Active Authentication Phase and PPP Session Phase
B. Passive Discovery Phase and PPP Session Phase
C. Active Authorization Phase and PPP Session Phase
D. Active Discovery Phase and PPP Session Phase
Answer: D
Question No: 10
Which condition can cause unicast reverse path forwarding to fail?
A. split horizon
B. STP convergence
C. PortFast security violation
D. asymmetric routing
Answer: D
Question No: 11
A company has just opened two remote branch offices that need to be connected to the corporate network. Which interface configuration output can be applied to the corporate router to allow communication to the remote sites?
A. interface Tunnel0 bandwidth 1536
ip address 209.165.200.230 255.255.255.224
tunnel source Serial0/0 tunnel mode gre multipoint
B. interface fa0/0 bandwidth 1536
ip address 209.165.200.230 255.255.255.224
tunnel mode gre multipoint
C. interface Tunnel0 bandwidth 1536
ip address 209.165.200.231 255.255.255.224
tunnel source 209.165.201.1 tunnel-mode dynamic
D. interface fa 0/0 bandwidth 1536
ip address 209.165.200.231 255.255.255.224
tunnel source 192.168.161.2
tunnel destination 209.165.201.1 tunnel-mode dynamic
Answer: A
Question No: 12
A network engineer executes the command show ip eigrp vrf purple topology. Which type of information is displayed as a result?
A. routes for a global routing table.
B. updates that were sent for a specific routing table.
C. active neighbors for a global routing table.
D. route successors for a specific routing table.
Answer: D
Question No: 13
Which type of Netflow information is displayed when the show ip flow export command is executed?
A. local status and statistics
B. export interface configurations
C. sent status and statistics
D. top talkers
Answer: D
Question No: 14
Refer to Exhibit.
A network engineer is unable to make VRF lite EIGRP adjacency work. There is nothing wrong with communication between R1 and R2. What command will eliminate the issue when executed on both routers?
A. (config-router-af)#autonomous-system 100
B. (config)#ip-multicast-routing
C. (config-vrf)#route-target both 100:1
D. config-router-af)#network 209.165.202.128.0.0.0.31
Answer: A
Question No: 15
A corporate policy requires PPPoE to be enabled and to maintain a connection with the ISP, even if no interesting traffic exists. Which feature can be used to accomplish this task?
A. TCP Adjust
B. Dialer Persistent
C. PPPoE Groups
D. half-bridging
E. Peer Neighbor Route
Answer: B
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