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 Sources. 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 Sources. 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 Sources. 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 Sources. 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 Sources2?
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_
chapter09186a0080110dd2. html#99899
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