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2016 NEW Cisco 640-911: Introducing
Cisco Data Center Networking (DCICN)
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QUESTION 61
Which option is an example of a link-state routing protocol?
A.
B.
C.
D.

EIGRP
RIP
OSPF
ARP

Answer: C
Explanation:
http://en.wikipedia.org/wiki/Link-state_routing_protocol
"A link-state routing protocol is one of the two main classes of routing protocols used in packet
switching networks for computer communications (the other is the distance-vector routing
protocol). Examples of link state routing protocols include open shortest path first (OSPF) and
intermediate system to intermediate system (IS-IS)."
QUESTION 62
What is the maximum allowable hop count for RIPv1?
A.
B.
C.
D.
E.

4
8
12
15
16

Answer: D

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Explanation:
"Without using RMTI, the hop count cannot exceed 15, otherwise it will be considered invalid."
http://en.wikipedia.org/wiki/Routing_Information_Protocol
QUESTION 63
What is the default periodic interval at which RIPv1 sends routing updates?
A.
B.
C.
D.
E.
F.

15 seconds
30 seconds
45 seconds
60 seconds
90 seconds
RIPv1 only sends routing updates when the topology changes.

Answer: B
Explanation:
"Originally, each RIP router transmitted full updates every 30 seconds."
http://en.wikipedia.org/wiki/Routing_Information_Protocol
QUESTION 64
What does RIPv1 send to its neighbors?
A.
B.
C.
D.

information about changed routes
information about new routes
the entire routing table
information about deleted routes

Answer: C
Explanation:
"On receiving the Routing table, the router processes each entry of the routing table as per the
following rules"
http://en.wikipedia.org/wiki/Routing_Information_Protocol
QUESTION 65
What are two advantages of employing an external router for inter-VLAN routing over an IEEE
802.1Q trunk link? (Choose two.)
A.
B.
C.
D.
E.

Layer 3 functionality is not required on the switch.
The router facilitates communication between VLANs.
The single traffic path is optimized.
Latency is reduced as packets leave the switch.
Equal-Cost Multipath is supported.

Answer: AB
QUESTION 66
Which statement correctly describes an SVI?
A. An SVI is a Layer 2 interface and uses a dynamic MAC address.

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B. An SVI cannot have an IP address assigned to it.
C. An SVI provides Layer 3 routing between VLANs.
D. Each switch port requires an SVI assignment.
Answer: C
Explanation:
http://en.wikipedia.org/wiki/Switch_virtual_interface
QUESTION 67
What is the Cisco Nexus Operating System command to define a port as a Layer 3 port?
A.
B.
C.
D.

port routed
no switchport
l3 switchport
port switching off

Answer: B
Explanation:
"If you want to configure a Layer 3 interface for Layer 2, enter the switchport command. Then, if
you change a Layer 2 interface to a routed interface, enter the no switchport command. "
http://www.cisco.com/en/US/docs/switches/datacenter/nexus5000/sw/command/reference/layer2/
n5kl2_cmds_n.pdf
QUESTION 68
Which statement is correct regarding a routed port on a multilayer switch?
A.
B.
C.
D.

A routed port requires an SVI definition.
Routed ports cannot be configured on a multilayer switch that uses SVIs.
A maximum of 32 routed ports can be provisioned on a given multilayer switch.
A routed port is a physical port that supports Layer 3 routing.

Answer: D
QUESTION 69
On a new Cisco Nexus switch, you receive an error message when you attempt to create an SVI.
What is the first command you must use to create the SVI?
A.
B.
C.
D.

interface vlan (vlan_id)
vlan (vlan_id)
feature svi
interface routed

Answer: A
Explanation:
http://docwiki.cisco.com/wiki/Cisco_NX-OS/IOS_Interface_Comparison
==Configuring a Switched Virtual Interface (SVI)==
feature interface-vlan
interface vlan 10
ip address 192.168.1.1./24

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no shutdown
QUESTION 70
Which command should you use to configure a Cisco Nexus switch port for Layer 2 operation?
A.
B.
C.
D.

nexus(config-if)#switchport
nexus(config-if)#layer-2
nexus(config-if)#routed
nexus(config)#interface vlan 10
nexus(config-if)#switchport

Answer: A
Explanation:
"If you want to configure a Layer 3 interface for Layer 2, enter the switchport command. Then, if
you change a Layer 2 interface to a routed interface, enter the no switchport command."
http://www.cisco.com/en/US/docs/switches/datacenter/nexus 5000/sw/command/reference/layer2/
n5kl2_cmds_n.pdf

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