Download 640-911 Study Guides 2021

NEW QUESTION 1
Which device would you select to partition a network into VLANs?

• A. repeater
• B. bridge
• C. switch
• D. router
• E. hub

Answer: C

NEW QUESTION 2
Which network topology is most closely associated with FDDI?

• A. bus
• B. token passing bus
• C. star
• D. extended star
• E. ring

Answer: E

Explanation: http://en.wikipedia.org/wiki/Fiber_Distributed_Data_Interface

NEW QUESTION 3
Which two options represent a subnet mask that allows for a maximum of 14 available host addresses on a subnet? (Choose two.)

• A. 255.255.255.240
• B. 255.255.255.192
• C. 255.255.240.0
• D. 255.255.192.0
• E. /14
• F. /21
• G. /26
• H. /28

Answer: AH

Explanation: Example:
Address: 192.168.1.1
Bitmask: 28
Netmask: 255.255.255.240
Network: 192.168.1.0
HostMin: 192.168.1.1
HostMax: 192.168.1.14
Broadcast: 192.168.1.15
Hosts: 16

NEW QUESTION 4
Where does Cisco Nexus Operating System store the startup configuration file?

• A. RAM
• B. flash
• C. bootflash
• D. volatile
• E. NVRAM

Answer: E

Explanation: "A persistent copy of Cisco Router configuration file is called as "startup-config" file. The "startup-config" file is kept in NVRAM and the contents of the "startup-config" file are retained after a reboot."
http://www.omnisecu.com/cisco-certified-network-associate-ccna/cisco-router- configuration-files.php

NEW QUESTION 5
To improve security, a network engineer needs to configure an access list on a router. In which mode can this list be configured?

• A. global configuration
• B. user access
• C. user privileged
• D. interface configuration

Answer: A

NEW QUESTION 6
What is the minimum required command to enter global configuration mode on a Cisco Nexus switch?

• A. nexus# con
• B. nexus# configure
• C. nexus# configure global
• D. nexus# configure terminal

Answer: A

Explanation: Example: NX# con
Enter configuration commands, one per line. End with CNTL/Z. NX(config)#
PS. in IOS minimum "conf t"

NEW QUESTION 7
At which layer of the OSI model does TCP operate?

• A. 1
• B. 2
• C. 3
• D. 4
• E. 5

Answer: D

Explanation: http://en.wikipedia.org/wiki/OSI_model

NEW QUESTION 8
What is the Cisco Nexus Operating System command to define a port as a Layer 3 port?

• A. Port routed
• B. No switchport
• C. l3 switchport
• D. 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/l ayer2/n5kl2_cmds_n.pdf

NEW QUESTION 9
Which layer of the OSI model is associated with Token Ring Media Access Control?

• A. datagram
• B. routing
• C. network
• D. data link
• E. transport
• F. transmission
• G. session

Answer: D

Explanation: "Token ring local area network (LAN) technology was a protocol which resided at the data link layer (DLL) of the OSI model."
http://en.wikipedia.org/wiki/Token_ring

NEW QUESTION 10
HOTSPOT

Answer:

Explanation:

NEW QUESTION 11
At which layer of the OSI Model is TCP traffic encapsulated?

• A. transport
• B. data-link
• C. presentation
• D. application

Answer: A

NEW QUESTION 12
Refer to the exhibit. Both Cisco Nexus 5596UP Switches have one Layer 3 card installed each. Which two additional options are available? (Choose two.)

• A. Eight additional Cisco Nexus 2000 switches can be connected in the same manner.
• B. Sixteen additional Cisco Nexus 2000 switches can be connected eight individually to each 5596.
• C. One additional Layer 3 expansion module can be installed in each 5596 to increase the Layer 3 forwarding capability.
• D. FEX ports can be configured as router ports, extending Layer 3 redundancy to top of rack.
• E. FEX ports can be configured for FCoE, reducing cabling footprint.
• F. Sixteen additional Cisco Nexus 2000 switches can be connected in the same manner.

Answer: AB

NEW QUESTION 13
What are three important factors when configuring VTP on the Cisco Nexus switching platform? (Choose three.)

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

Answer: BFG

NEW QUESTION 14
HOTSPOT

Answer:

Explanation:

NEW QUESTION 15
What is the maximum number of fabric modules that can be installed in a Cisco Nexus 7000 chassis?

• A. 4
• B. 5
• C. 6
• D. 7

Answer: B

NEW QUESTION 16
What is a main function of a Layer 2 switch in a network?

• A. It breaks a large broadcast domain into smaller ones.
• B. It merges small collision domains in a large one.
• C. It breaks a large collision domain into smaller ones.
• D. It creates Virtual LANs for traffic segregation and security.
• E. It manages traffic using dynamic routing protocols.

Answer: C