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2016 NEW Cisco 640-911: Introducing
Cisco Data Center Networking (DCICN)
Exam Questions and Answers
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QUESTION 81
Which two layers of the OSI model relate to the transmission of bits over the wire and packet
forwarding based on destination IP address? (Choose two.)
A.
B.
C.
D.
E.

1
2
3
4
5

Answer: AC
Explanation:
Bits - 1 layer
Packets - 3 layer
http://en.wikipedia.org/wiki/OSI_model
QUESTION 82
Which layer of the OSI model is associated with the reliable transmission of datagrams?
A.
B.
C.
D.
E.
F.

datagram
routing
network
data link
transport
transmission

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G. session
Answer: E
Explanation:
http://en.wikipedia.org/wiki/Transport_layer
QUESTION 83
What are three modular Layer 3 processes in Cisco Nexus Operating System? (Choose three.)
A.
B.
C.
D.
E.
F.

UDLD
PIM
HSRP
STP
OSPF
Cisco Discovery Protocol

Answer: BCE
QUESTION 84
What are two default user roles in Cisco Nexus Operating System? (Choose two.)
A.
B.
C.
D.
E.
F.

Admin
Network Operator
Operator
Storage Operator
Root
System Manager

Answer: AC
QUESTION 85
What is required to allow devices that are using RFC 1918 addresses to communicate over the
Internet?
A.
B.
C.
D.

A private to public VLAN must be defined on the Internet border device.
The Internet firewall must permit RFC 1918 addresses.
VLAN translation is required on the Internet border device.
Network address translation is required on the Internet border device.

Answer: D
QUESTION 86
A customer wants to connect to their SAN via Fibre Channel.
Which two devices can be used to provide connectivity? (Choose two.)
A. Cisco MDS 9148 Multilayer Fabric Switch
B. Cisco Nexus 7010 Switch
C. Cisco Nexus 5548UP Switch

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D. Cisco Catalyst 6509 Switch
E. Cisco Nexus 2248TP GE Fabric Extender
Answer: AC
QUESTION 87
Which network device is used to identify and protect against unauthorized traffic and control
access to legitimate business-critical data?
A.
B.
C.
D.
E.

Stateful firewall
Stateless firewall
Router
Gateway
Switch

Answer: A
QUESTION 88
Which two Cisco data center switches provide support for Virtual Extensible LAN and In-Service
Software Upgrade and patching without any interruption in operation? (Choose two.)
A.
B.
C.
D.
E.

Cisco Nexus
Cisco Nexus
Cisco Nexus
Cisco Nexus
Cisco Nexus

9396PX Switch
5548 Switch
9508 Switch
6004 Switch
3064x Switch

Answer: AC
QUESTION 89
Which layer of the OSI model ensures that information sent from one system can be read by
another system?
A.
B.
C.
D.
E.
F.
G.

application layer
presentation layer
session layer
transport layer
network layer
data link layer
physical layer

Answer: B
QUESTION 90
Which two options are groups of network protocols that are categorized into the following OSI
layers: application, data link, network, and transport? (Choose two.)
A. FTP, LLDP, GRE, BGP

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B. RDP, CDP, EIGRP, UDP
C. SSH, LLDP, ICMP, TCP
D. Telnet, ICMP, EIGRP, FTP
Answer: BC

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