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April 15, 2019

Cisco 640-911 Braindumps 2019

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Which protocol operates at Layer 3 of OSI model and is used for host addressing?

  • A. TCP
  • B. UDP
  • C. IP
  • D. RIP
  • E. OSPF

Answer: C

What is the subnet mask for the network

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

Answer: C

What are three characteristics of the Ethernet access method CSMA/CD? (Choose three.)

  • A. It allows many stations access to the same wire.
  • B. It provides segmentation of a LAN.
  • C. It allows a transmitting station to detect activity on the wire.
  • D. It allows for detection of collisions on the wire.
  • E. It provides broadcast capability on the wire.

Answer: ACD

Which layer of the OSI model ensures that information sent from one system can be read by another system?

  • A. application layer
  • B. presentation layer
  • C. session layer
  • D. transport layer
  • E. network layer
  • F. data link layer
  • G. physical layer

Answer: B

Which VTP mode disallows the creation of local VLANs?

  • A. transparent
  • B. tunneling
  • C. server
  • D. client
  • E. off
  • F. native

Answer: D

Explanation: "A VTP client behaves like a VTP server and transmits and receives VTP updates on its trunks, but you cannot create, change, or delete VLANs on a VTP client. VLANs are configured on another switch in the domain that is in server mode." http://www.cisco.com/en/US/docs/switches/lan/catalyst3560/software/release/12.2_52_se/configuration/guide/swvtp.html#wp1205076

What are three modular Layer 3 processes in Cisco Nexus Operating System? (Choose three.)

  • A. UDLD
  • B. PIM
  • C. HSRP
  • D. STP
  • E. OSPF
  • F. Cisco Discovery Protocol

Answer: BCE

Explanation: "PIM is IP routing protocol-independent and can leverage whichever unicast routing protocols are used to
populate the unicast routing table, including Enhanced Interior Gateway Routing Protocol (EIGRP), Open
Shortest Path First (OSPF), Border Gateway Protocol (BGP), and static routes. PIM uses this unicast routing information to perform the multicast forwarding function. Although PIM is called a multicast routing protocol, it actually uses the unicast routing table to perform the RPF check function instead of building up a completely independent multicast routing table. Unlike other routing protocols, PIM does not send and receive routing updates between routers." http://www.cisco.com/en/US/docs/ios/solutions_docs/ip_multicast/White_papers/mcst_ovr.html#wp1009068
"Hot Standby Router Protocol (HSRP) is a Cisco proprietary redundancy protocol for establishing a fault tolerant default gateway.
In the configuration procedures, the specified interface must be a Layer 3 interface:" http://www.cisco.com/en/US/docs/switches/lan/catalyst3750/software/release/12.2_55_se/configuration/guide/swhsrp.html
OSPF (Open Shortest Path First) - routing protocol.

What is the addressing format of IPv6?

  • A. 48-bit dotted decimal
  • B. 48-bit colon-delimited hexadecimal
  • C. 64-bit dotted decimal
  • D. 64-bit colon-delimited hexadecimal
  • E. 128-bit dotted decimal
  • F. 128-bit colon-delimited hexadecimal

Answer: F

Explanation: "IPv6 addresses are represented as eight groups of four hexadecimal digits separated by colons. The length of an IPv6 address is 128 bits"

What option tests hardware to verify that all components of the device are operational and present?

  • A. NVRAM
  • B. POST
  • C. BIOS
  • D. Bootstrap

Answer: B

0.0.0 - (10/8 prefix) - (172.16/12 prefix) - (192.168/16 prefix)"

5. What is the minimum number of fabric modules that should be installed in the Cisco Nexus 7000 chassis for N 1 redundancy using M1-Series line card?

  • A. 3
  • B. 4
  • C. 5
  • D. 6

Answer: B

Explanation: Decimal 1816
Binary 11100011000
Hexadecimal 0x718 Roman MDCCCXVI Dotted decimal

8. What does RFC 4193 define?
A. IPv6 private network address space
B. IPv4 private network address space
C. unique local address
D. link-local address
Answer: A

9. Refer to the exhibit.
640-911 dumps exhibit
In which two ways does the routing table direct traffic? (Choose two.)
A. The router receives a default route via a dynamic routing protocol.
B. is the IP address of a local interface.
C. is the IP address of the neighbor router that is locally connected.
D. is the IP address of the directly connected neighbor.
E. The gateway of last resort is statically configured.
Answer: A,B

10. At which layer in the OSI stack does the Hypertext Transfer Protocol operate?
A. Layer 1
B. Layer 2
C. Layer 3
D. Layer 4
E. Layer 5
F. Layer 6
G. Layer 7
Answer: G

What range of IP addresses could be used in an external public zone of a data center?

  • A.
  • B.
  • C.
  • D.
  • E.

Answer: D

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
  • D. Cisco Catalyst 6509 Switch
  • E. Cisco Nexus 2248TP GE Fabric Extender

Answer: AC

What action does a switch take if the destination MAC address is unknown?

  • A. Discard frame
  • B. Send ICMP unreachable message to source
  • C. Flood packet on all ports
  • D. Compare destination IP address against an ACL to determine if it is permitted
  • E. Send gratuitous ARP on all ports and wait for reply before forwarding

Answer: C

Explanation: "What happens though when the switch receives a frame with a destination MAC address that is not included in the table? In that case the switch will just broadcast/flood the frame with the unknown destination address to all of its ports (apart from the port where the frame came from). This process is called unknown unicast flooding. " http://telconotes.wordpress.com/2013/03/09/how-a-switch-works/

640-911 dumps exhibit
640-911 dumps exhibit
640-911 dumps exhibit
640-911 dumps exhibit


    Explanation: 640-911 dumps exhibit

    A network engineer is tasked with installing a new switch into the network access layer. The switch needs to see VTP data, but does not need to participate in the VTP domain. What VTP mode should the switch be configured for?

    • A. client
    • B. transparent
    • C. server
    • D. off
    • E. active

    Answer: B

    Where does Cisco Nexus Operating System store the running configuration file?

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

    Answer: A

    Explanation: "The "running-config" file is stored in RAM."
    http://www.omnisecu.com/cisco-certified-network-associate-ccna/cisco-router- configuration-files.php

    Which network topology is most closely associated with classical CSMA/CD?

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

    Answer: A

    Explanation: "For the bus topology, the "classical" access methods are the CSMA/CD.." http://books.google.com/books?id=tmJzufisExQC&pg=PA39&lpg=PA39&dq=classic+CSM A/CD+bus+topology&source=bl&ots=b1L_uaAcVR&sig=Tx8zfIavph8RFr9N5n5EDv2WZZo
    &hl=ru&sa=X&ei=jnDmUsTTD4no4gSd_oGwCw&ved=0CCwQ6AEwAQ#v=onepage&q=cl assic%20CSMA%2FCD%20bus%20topology&f=false

    Which two networking devices forward data based on destination MAC address? (Choose two.)

    • A. Repeater
    • B. Bridge
    • C. Switch
    • D. Router
    • E. Hub

    Answer: BC

    Explanation: http://www.cisco.com/en/US/prod/collateral/switches/ps9441/ps9670/white_paper_c11- 465436.html

    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

    There is a large amount of traffic inside a network segment with a destination address of FF:FF:FF:FF:FF:FF. What type of traffic uses this address?

    • A. FF:FF:FF:FF:FF:FF is the Layer 2 broadcast address.
    • B. FF:FF:FF:FF:FF:FF is the Layer 2 network address.
    • C. FF:FF:FF:FF:FF:FF is the Layer 3 broadcast address.
    • D. FF:FF:FF:FF:FF:FF is the Layer 3 network address.
    • E. FF:FF:FF:FF:FF:FF is multicast traffic.

    Answer: A

    What TCP/IP layer would handle UDP traffic flows?

    • A. internetwork
    • B. network interface
    • C. transport
    • D. physical

    Answer: C

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