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2016 NEW Cisco 640-911: Introducing
Cisco Data Center Networking (DCICN)
Exam Questions and Answers
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QUESTION 91
Which Cisco data center switch can support a 4-RU physical space requirement and also support
FEX, Layer 2 and Layer 3, converged FCoE, and up to ninety -six 40-Gigabit Ethernet ports?
A.
B.
C.
D.
E.

Cisco Nexus
Cisco Nexus
Cisco Nexus
Cisco Nexus
Cisco Nexus

5548
5010
1010
7004
6004

Switch
Switch
Switch
Switch
Switch

Answer: E
QUESTION 92
Which device can provide FCoE connectivity?
A.
B.
C.
D.

Cisco 2901 Integrated Services Router
Cisco Nexus 2224TP Fabric Extender
Cisco Nexus 5548 Switch
Cisco ASA 5510 Firewall

Answer: C
QUESTION 93
What are three characteristics of the Ethernet access method CSMA/CD? (Choose three.)

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A.
B.
C.
D.
E.

It
It
It
It
It

allows many stations access to the same wire.
provides segmentation of a LAN.
allows a transmitting station to detect activity on the wire.
allows for detection of collisions on the wire.
provides broadcast capability on the wire.

Answer: ACD
QUESTION 94
Which two MAC addresses are valid? (Choose two.)
A.
B.
C.
D.
E.

00:10:74:C9:CD:C0
0010.CC71.4BF9.AE0E.AE0E
00:10:F9:F9:CC:70:8D:80
0010.E686.3ED4
0010.68F7

Answer: AD
QUESTION 95
What are three important factors when configuring VTP on the Cisco Nexus switching platform?
(Choose three.)
A.
B.
C.
D.
E.
F.
G.
H.

VLAN 1 must be disabled on the trunk port in order for VTP to work properly.
The VDC administrator or network administrator must enable VTP on the device.
VTP is enabled on all trunk ports by default.
It does not matter which VDC you are working in when you configure VTP on the Cisco Nexus 7000.
For a device operating in VTP client mode, the password and domain name must be properly set.
In VTP server mode, the device will store VLAN information in bootflash.
Per device, VTP configuration is stored in a file named vtp.conf.
VTP pruning can be used on Cisco NX-OS devices.

Answer: BFG
QUESTION 96
Which two statements about configuring VLANs on the Cisco Nexus 7000 platform are true?
(Choose two.)
A.
B.
C.
D.
E.

Software updates are disruptive to VLANs.
VLANs with the same number are unique to their VDC.
VLAN licensing is required for use.
To change VLAN information, the administrator must be at the switch (config) # prompt.
The command copy running-config startup-config will save changes to the VLAN database.

Answer: BE
QUESTION 97
In Cisco NX-OS, which three options are possible spanning tree port types? (Choose three.)

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A.
B.
C.
D.
E.
F.

bridge
network
normal
root
edge
fixed

Answer: BCE
QUESTION 98
Which two data center technologies are part of the IEEE 802.3 standard for Ethernet -based
LANs? (Choose two.)
A.
B.
C.
D.

40 Gb/s
10 Gb/s
WLAN
Smart Grid

Answer: AB
QUESTION 99
What will cause a device to wait a random amount of time before trying to transmit again?
A.
B.
C.
D.
E.
F.

signal drop or fade
signal acknowledgment
packet drop
signal collision
keep alive signal
Ethernet silence tone

Answer: D
QUESTION 100
Which option includes the two devices that can be connected when a Cisco Fabric Extender
Transceiver is used?
A.
B.
C.
D.

Server to Cisco Nexus 2000 Series Fabric Extender
Server to Cisco Nexus 5010 Switch
Server to Cisco Nexus 5548 Switch
Cisco Nexus 2000 Series Fabric Extender to Cisco Nexus 5500 Switch

Answer: D

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