QUESTION 1 Of the following AS numbers, which are private AS numbers? (Choose all that apply.)
A. 64511
B. 64128
C. 64080
D. 64524 Answer: D Explanation: This autonomous system designator is a 16-bit number, with a range of 1 to 65535. RFC 1930 provides guidelines for the use of AS numbers. A range of AS number, 64512 through 65535, is reserved for private use, much like the private Internet Protocol (IP) addresses. Reference: Building Scalable Cisco Networks (Cisco press) page 312
QUESTION 2 You are the network administrator at Cisco Highway. You want to prevent routing loops caused by running different routing protocols and redundant paths between two autonomous systems. Which of the following IOS features can you use to achieve this? (Choose all that apply.)
A. Two-way redistribution.
B. Static redistribution.
C. Passive interfaces.
D. Route filtering. Answer: C, D Explanation: Topic: Avoiding Routing Loops When Redistributing Proof: Routing loops occur when a routing protocol is fed its own networks. The routing protocol might see a network as having a more favorable path, although this path points in the opposite direction, into a different routing protocol domain. The potential for confusion is enormous, and it is very easy to create routing loops when redistributing. The problem is solved by the following configurations: Changing the metric, Changing the administrative distance, Using default routes, Using passive interfaces with static routes, Using distribute lists Source: CCNP Self-Study CCNP BSCI Exam Certification Guide Third Edition P.624-5
QUESTION 3 Which of the following commands display OSPF parameters, such as filters, default metric, maximum paths, and number of areas configured on a router?
A. show ip protocol
B. show ip ospf interface
C. show ip route
D. show ip ospf Answer: A Explanation: The show ip protocols command, displays parameters about timers, filters, metrics, network, and other information for the entire router. Reference: Building Scalable Cisco Networks (Cisco press) page 133
QUESTION 4 You are the network administrator at Cisco Highway. You perform the following configuration on a 256 kbps HDLC interface: interface serial 0/0 bandwidth 56 ip bandwidth-percent eigrp 200 250 How much bandwidth is allocated for EIGRP traffic?
A. 56 kbps
B. 112 kbps
C. 128 kbps
D. 140 kbps
E. 256 kbps Answer: D Explanation: The bandwidth-percent command tells EIGRP what percentage of the configured bandwidth it may use. The default is 50% but can have values greater than 100. The syntax for the bandwidth-percent command is: ip bandwidth-percent eigrp > Reference: http://www.cisco.com/en/US/tech/tk365/tk207/technologies_tech_note09186a0080094063.shtml
QUESTION 5 By default, Cisco routers perform route summarization for which of the following routing protocols? (Choose all that apply.)
A. STP
B. IGRP
C. OSPF
D. RIPv.2
E. EIGRP Answer: B, D, E Explanation: Sending route summaries - Routing information advertised out an interface is automatically summarized at major (classful) network address boundaries by RIP, IGRP, and EIGRP. Specifically, this autonomous summarization occurs for those routes whose classful network address differs from the major network address of the interface to which the advertisement is being sent. Reference: Building Scalable Cisco Networks (Cisco press) page 79
QUESTION 6 You are the network administrator at Cisco Highway. The following problem is reported: the 10.12.21.0/24 prefix was not injected into the local BGP table on RouterA. RouterA's configuration and routing table information is show in the following exhibit: configuration: router bgp 321 network 10.0.0.0 neighbor 172.16.10.1 remote-as 322 no auto-summary routing table information: show ip route | include 10.12.21.0/24 [110/11] via 192.168.10.1, 2d00h, Ethernet0/0 Why is it that this particular prefix is not in the local BGP table?
A. This route is not a BGP learned route.
B. The 172.16.10.1 neighbor is down.
C. Auto-summary is disabled.
D. The prefix 10.12.21.0/24 is not a connected route. Answer: A Explanation: The show ip route command will not display the BGP table. You must use the show ip bgp command to display the entries in the BGP routing table. Reference: Building Scalable Cisco Networks (Cisco press) page 348
QUESTION 7 You are the network administrator at Cisco Highway. You want to display RIP routing transactions. Which command should you issue in EXEC mode?
A. show ip route
B. show ip rip route
C. show ip rip
D. debug ip rip
E. debug ip route Answer: D Explanation: You can use the debug ip rip EXEC command to display information on RIP routing transactions. The no form of this command disables debugging output. Reference: http://www.cisco.com/en/US/products/sw/iosswrel/ps1828/products_command_reference_chapter09186a00800 7ff66.html
QUESTION 8 Study the Exhibit below carefully: Assuming the router-id command is not used, what is the OSPF router ID for Cisco Highway2?
A. 10.5.10.2
B. 10.9.10.1
C. 10.6.10.3
D. 10.12.10.10 Answer: D Explanation: The highest ip address on an active interface is normally used as the OSPF router ID. This can be overridden by configuring an IP address on a loopback address on a loopback interface. Reference: Building Scalable Cisco Networks (Cisco press) page 126
QUESTION 9 In which of the following OPF networks does Designated Router (DR) election take place? (Choose all that apply.)
A. Point-to-multipoint
B. Broadcast multi-access
C. Point-to-point
D. Nonbroadcast multi-access Answer: B, D Explanation: Mode Adjency NBMA Manual Configuration DR/BDR elected Broadcast Automatic DR/BDR elected Reference: Building Scalable Cisco Networks (Cisco press) page 124
QUESTION 10 Which of the following are the general IPv6 address types? (Choose all that apply.)
A. Broadcast
B. Multicast
C. Public
D. Private
E. Unicast
F. Anycast Answer: B, E, F
- IPv6 Address Type: Unicast - An IPv6 unicast address is an identifier for a single interface, on a single node. A packet that is sent to a unicast address is delivered to the interface identified by that address.
- IPv6 Address Type: Anycast - An anycast address is an address that is assigned to a set of interfaces that typically belong to different nodes. A packet sent to an anycast address is delivered to the closest interface-as defined by the routing protocols in use-identified by the anycast address.
- IPv6 Address Type: Multicast - An IPv6 multicast address is an IPv6 address that has a prefix of FF00::/8 (1111 1111). An IPv6 multicast address is an identifier for a set of interfaces that typically belong to different nodes. Reference: http://www.cisco.com/en/US/products/sw/iosswrel/ps1839/products_feature_guide_
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