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QUESTION 146
Look at the following exhibit. You have just configured OSPF on all routers in the network. You configure area 5 as an NSSA area. You redistribute the RIPv2 routes into the OSPE field on router P4S-R5. Choose two types of LSAs that will be originated by router P4S-R5. (choose two)
A. type 2 Network LSA
B. type 3 Network Summary LSA
C. type 1 Router LSA
D. type 7 NSSA External LSA
Correct Answer: CD Section: (none) Explanation
QUESTION 147
You are a network technician at P4S. Study this exhibit
carefully. BGP has been configured on the routers in the network. However, the IBGP peers in
autonomous system 65200 have
not converged. In addition, this console message was generated on router P4S2:
*Mar 1 03:09:07.729: %TCP-6-BADAUTH No MD5 digest from 10.10.23.2(179) to 10.10.23.3(11002)
Based on the information provided, what causes this problem?
A. OSPF must be configured with the same MD5 authentication.
B. The password that is used for BGP authentication on both BGP peers in autonomous system 65200 must be the same.
C. BGP authentication can be used on eBGP peers only.
D. BGP authentication can be used on iBGP peers when the connection is configured between the loopback interfaces.
Correct Answer: B Section: (none) Explanation
QUESTION 148
Study the configuration presented in the exhibit carefully. What is the objective of the route map named test ?
A. marks all prefixes received from the 10.1.1.1 neighbor with a MED of 200
B. marks the 10.0.0.0/8 prefix received from the 10.1.1.1 neighbor with a MED of 200
C. marks the 10.0.0.0/8 prefix advertised to the 10.1.1.1 neighbor with a MED of 200
D. marks all prefixes advertised to the 10.1.1.1 neighbor with a MED of 200
Correct Answer: C Section: (none) Explanation
QUESTION 149
Which two descriptions are true regarding the exhibit? (Choose two.)
A. Two routes will be installed in the routing table.
B. All six routes will be installed in the routing table.
C. All the routes were redistributed into BGP from an IGP.
D. Four routes will be installed in the routing table.
Correct Answer: CD Section: (none) Explanation
QUESTION 150
According to the partial configuration that is presented in the exhibit, which two statements are correct? (Choose two.)
A. The peer group shortens the IBGP configuration.
B. All the configured neighbors are in autonomous system 100.
C. Only the outgoing filters are applied to BGP updates.
D. The peer group shortens the EBGP configuration.
Correct Answer: AB Section: (none) Explanation
QUESTION 151
Which two statements best describe IBGP neighbor relationships? (Choose two.)
A. IBGP neighbors must be in different autonomous systems.
B. The BGP split horizon rule specifies that routes learned via IBGP are never propagated to other IBGP peers.
C. An EGP or static routing is required between IBGP neighbors.
D. A full-mesh IBGP requires that neighbor relationships be established between all BGP enabled routers in the autonomous system.
Correct Answer: BD Section: (none) Explanation
QUESTION 152
IBGP is the protocol used between the routers in the same
autonomous system (AS) .Which description is correct about IBGP routers?
A. They must be directly connected.
B. They must be fully meshed.
C. They can be in a different AS.
D. They do not need to be directly connected.
Correct Answer: D Section: (none) Explanation
QUESTION 153
Which two approaches advertise internal networks to external ISPs via BGP? (Choose two.)
A. defining routes via the network statement
B. forcing the next-hop address
C. disabling synchronization
D. using aggregate routes
Correct Answer: AD Section: (none) Explanation
QUESTION 154
Which two statements best describe external BGP neighbor relationships? (Choose two.)
A. Static routes or an interior gateway protocol is required between EBGP neighbors.
B. EBGP neighbors use TCP port 179 to exchange BGP routing tables.
C. EBGP neighbors must be in different autonomous systems.
D. The BGP split-horizon rule specifies that routes learned via IBGP are never propagated to other EBGP peers.
Correct Answer: BC Section: (none) Explanation
QUESTION 155
Look at the exhibit. Configure all routers for BGP. EBGP routes received on router P4S2 show up in the BGP table on routers P4S1 and P4S3 but not in their IP routing tables. Which would be the cause of this problem?
A. EBGP multihop is not configured on routers P4S1 and P4S3.
B. Synchronization in autonomous system 100 is turned on.
C. Synchronization in autonomous system 100 is turned off.
D. Routers P4S1 and P4S3 do not receive the same routes via an IGP.
Correct Answer: D Section: (none) Explanation
QUESTION 156
What is the reason that iBGP sessions should be fully meshed within a Transit AS?
A. A full mesh allows for optimal routing within the Transit AS.
B. Routes learned via iBGP are never propagated to other eBGP peers.
C. BGP requires redundant TCP sessions between iBGP peers.
D. Routes learned via iBGP are never propagated to other iBGP peers.
Correct Answer: D Section: (none) Explanation
QUESTION 157
What is the meaning of the default value of the EIGRP variance command of 1?
A. Only the path that is the feasible successor should be used.
B. The router only performs equal-cost load balancing on all paths that have a metric greater than 1.
C. Load balancing is disabled on this router.
D. The router performs equal-cost load balancing.
Correct Answer: D Section: (none) Explanation
QUESTION 158
The Border Gateway Protocol (BGP) is the core routing protocol of the Internet. Refer to the exhibit.
Routers P4SA and P4SB are running BGP but the session is active.
What command needs to be
added to establish the BGP session?
A. ip route 10.10.10.1 255.255.255.255 s0/0 ip route 10.10.10.1 255.255.255.255 s0/1
B. no synchronization
C. network 10.10.10.0
D. neighbor 10.10.10.1 next-hop-self
Correct Answer: A Section: (none) Explanation
QUESTION 159
You work as a network engineer at P4S.Examine the exhibit carefully. What will P4S-RB do with a packet sourced from within AS 64200 with a destination address of 192.168.25.1?
A. It will be forwarded to the null 0 interface of P4S-RB and dropped.
B. It will be dropped because network 192.168.25.0 is not in the P4S-RA routing table.
C. It will be dropped because network 192.168.25.0 is not in the P4S-RB routing table.
D. It will be forwarded to the P4S-RB 192.168.25.0 network.
Correct Answer: D Section: (none) Explanation
QUESTION 160
You work as a network technician at P4S,and study the exhibit carefully. Autonomous systems 200 and 300 have EBGP sessions established with their directly connected routers in autonomous system 100. IGP has been configured on all routers in autonomous system 100 and they successfully exchange routing updates. Traffic originated in autonomous system 200 cannot reach the destination autonomous system 300. What configuration should be done on the routers in autonomous system 100 in order for the traffic coming from autonomous system 200 to be forwarded to autonomous system 300?
A. IBGP session must be established between routers P4S1 and P4S3, and the synchronization must be
turned off.
B. IBGP session must be established between routers P4S1 , P4S2 and P4S2 , P4S3, and the synchronization must be turned on.
C. IBGP session must be established between routers P4S1 and P4S3, and the synchronization must be turned on.
D. IBGP speakers within autonomous 100 must be fully meshed, and the synchronization must be turned off.
Correct Answer: D Section: (none) Explanation
QUESTION 161
You are a network technician.Study the exhibit carefully. Router RTR is attempting to build up BGP neighbor relationships with routers RT1 and RT3. Based on the information presented in this exhibit, which two statements are correct? (Choose two.)
A. RTR has a BGP password set but neighbor 10.0.0.5 has an incorrect password set.
B. RTR has a BGP password set but neighbor 10.0.0.1 has an incorrect password set.
C. RTR has a BGP password set but neighbor 10.0.0.5 does not.
D. RTR has a BGP password set but neighbor 10.0.0.1 does not.
Correct Answer: AD Section: (none) Explanation
QUESTION 162
You work as a network engineer at P4S.Refer to the
exhibit. Which statement accurately describes the 6.6.6.0/24 prefix?
A. Route 6.6.6.0/24 is learned by an IBGP peer.
B. The command neighbor send-community is configured on BGP neighbor 10.10.23.3.
C. The route 10.10.23.3 is not being advertised to other BGP neighbors.
D. If another path advertises the 6.6.6.0/24 path and has the default local preference, that path is more preferred.
Correct Answer: B Section: (none) Explanation
QUESTION 163
Which is the right order of the BGP attributes used for determining a route?
1.
Weight
2.
MED
3.
AS_Path
4.
Originate route
5.
Local preference
A. 1st
II. 2nd
III. 3rd
IV. 4th
B. 5th
C. 5, 1, 4, 3, 2
D. 1, 5, 4, 3, 2
E. 2, 3, 1, 5, 4
F. 4, 3, 2, 1, 5
Correct Answer: B Section: (none) Explanation
QUESTION 164
Examine the following statements carefully .A router is running BGP and receives more than one route for
a particular prefix. Assume that all the routes for this prefix have the same attributes.
Which three path features would be reasons for the router to ignore some of the routes and does not
consider them as candidates for the best path? (Choose three.)
A. paths that are marked as synchronized in the show ip bgp output
B. paths for which the NEXT_HOP is inaccessible
C. paths that are marked as not synchronized in the show ip bgp output
D. paths from an external BGP (eBGP) neighbor if the local autonomous system (AS) appears in the AS_PATH
Correct Answer: BCD Section: (none) Explanation
QUESTION 165
Look at the following exhibit. Presume an IGP is correctly operating inside AS64192. As to BGP operation in AS64192, which two of the following statements are true? (Choose two)
A. P4S-RT2 used the BGP command neighbor 192.168.33.1 ebgp-multihop
B. P4S-RT1 used the BGP command neighbor 192.168.33.1 remote-as 64192
C. P4S-RT2 used the BGP command neighbor 192.168.33.1 remote-as 64192
D. PS4-RT2 used the BGP command update-source loopback 0
Correct Answer: CD Section: (none) Explanation
QUESTION 166
Topic – Implement multicast forwarding. ?.§53 Questions??
Describe IP Multicast (e.g., Layer-3 to Layer-2 mapping, IGMP, etc.).
Describe, configure, or verify IP multicast routing (i.e., PIM Sparse-Dense Mode).
A.
B.
C.
D.
Correct Answer: Section: (none) Explanation
Explanation/Reference: QUESTION 167
In computer networking ,a multicast address is an identifier for a group of hosts that have joined a multicast group. Multicast addressing can be used in the Link Layer (OSI Layer 2), such as Ethernet Multicast, as well as at the Internet Layer (OSI Layer 3) as IPv4 or IPv6 Multicast. Which two descriptions are correct regarding multicast addressing?
A. The last 3 bytes (24 bits) of the multicast MAC address are 0x01-00-5E. This is a reserved value that indicates a multicast application.
B. To calculate the Layer 2 multicast address, the host maps the last 23 bits of the IP address into the last 24 bits of the MAC address. The high-order bit is set to 0.
C. The first 23 bits of the multicast MAC address are 0x01-00-5E. This is a reserved value that indicates a multicast application.
D. The first 3 bytes (24 bits) of the multicast MAC address are 0x01-00-5E. This is a reserved value that indicates a multicast application.
Correct Answer: BD Section: (none) Explanation
QUESTION 168
On the basis of the partial configuration for Router A: interface serial 0 ip address 10.1.1.1 255.255.255.0 encapsulation frame-relay ip ospf network point-to-multipoint router ospf 7 network 10.1.1.0 0.0.0.255 area 0 Which two descriptions are true? (Choose two.)
A. OSPF neighbor statements are not necessary.
B. The area 0 NBMA cloud is configured as more than one subnet.
C. The router is restricted to a hub and spoke topology.
D. DR/BDR elections do not take place.
Correct Answer: AD Section: (none) Explanation
QUESTION 169
Which one of the following commands enables a multicast routing protocol on an IOS device?
A. (config-if)#multicast address {IP-address}
B. (config)#ip multicast routing
C. (config-if)#ip pim {dense-mode | sparse-dense-mode | sparsemode}
D. (config)#ip pim send-rp-announce {interface type} scope {ttl} group-list {acl}
Correct Answer: C Section: (none) Explanation
QUESTION 170
You work as a network engineer at P4S.Study the exhibit carefully. A P4S network administrator consoles into the P4S-SW1 switch and attempts to save the switch configuration to the TFTP server that is located at IP address 10.1.2.10/24. However, whenever the copy running-config tftp command is issued with default options on switch P4S-SW1, an error is produced.
Which configuration would correct this situation?
A. P4S-SW1 (config)# interface range fastethernet 0/1 – 24 P4S-SW1 (config-if-range)# ip forward-protocol udp 69
B. P4S-R(config)# interface fastethernet0/0 P4S-R (config-if)# ip forward-protocol udp 69
C. P4S-R (config)# interface fastethernet0/1 P4S-R (config-if)# ip forward-protocol udp 69
D. P4S-R (config)# interface fastethernet0/0 P4S-R (config-if)# ip helper-address 10.1.2.10
Correct Answer: D Section: (none) Explanation
QUESTION 171
In order to enable multicast routing on an IOS device , which command should be used?
A. (config)#ip multicast-routing
B. (config-if)#ip pim {dense-mode | sparse-dense-mode | sparsemode}
C. (config-if)#multicast address {ip-address}
D. (config)#ip pim send-rp-announce {interface type} {scope ttl} {group-list acl}
Correct Answer: A Section: (none) Explanation
QUESTION 172
Rendezvous points are configured with an access list. Which objective will this list reach?
A. Restricting source addresses that use the RP
B. Restricting users that use the RP
C. Restricting routers that use the RP
D. Limiting multicast IP addresses that use the RP
Correct Answer: D Section: (none) Explanation QUESTION 173
Which two situations would require using multiple routing protocols? (Choose two)
A. when using UNIX host-based routers
B. because having multiple routing protocols confuses hackers
C. when smaller broadcast domains are desired
D. when migrating from an older Interior Gateway Protocol (IGP) to a new IGP
Correct Answer: AD Section: (none) Explanation
QUESTION 174
Examine the following options ,Multicasting supports applications that communicate:
A. many-to-many
B. one-to-many
C. many-to-one
D. one-to-one
Correct Answer: B Section: (none) Explanation
QUESTION 175
Which command will show the multicast groups used?
A. show multicast router
B. show multicast group
C. show igmp interface
D. ip igmp snooping
Correct Answer: B Section: (none) Explanation
QUESTION 176
Which option is not a capability of UDP multicast?
A. Limiting receivers
B. Retransmission
C. Dynamic membership
D. Packet ordering
Correct Answer: B Section: (none) Explanation
QUESTION 177
IGMPv1 does not have a mechanism to allow a host to leave a group when it is no longer interested in the content of that group. Based on the following statements, which is an advantage of IGMPv3 over version 2?
A. Leaves
B. Joins
C. Group-specific queries
D. Source Filtering
Correct Answer: D Section: (none) Explanation
QUESTION 178
For the following MAC addresses, which will 224.1.2.3 correspond to ?
A. e000.0001.0203
B. 0100.5e01.0203
C. 1000.5e01.0203
D. 0102.0300.0000
Correct Answer: B Section: (none) Explanation
QUESTION 179
Which two Cisco IOS commands can be used to view neighbor adjacencies? (Choose two.)
A. show ip ospf protocols
B. show ip ospf interfaces
C. show ip ospf database
D. show ip ospf neighbors
Correct Answer: BD Section: (none) Explanation
QUESTION 180
Which description is correct concerning the router operation when the command ip pim sparse-mode is used?
A. The (S,G) state exists in every router, regardless of the presence of an RPF interface.
B. When a port is pruned, the administrator must re-enable the port to support multicast traffic.
C. Flooding of traffic only occurs in the beginning stages of routing. Afterward, all necessary ports are pruned and multicast traffic is not sent across those interfaces.
D. Group members are joined to the shared tree by their local designated router.
Correct Answer: D Section: (none) Explanation
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