[Free] 2017(Oct) EnsurePass Dumpsleader Cisco 640-911 Dumps with VCE and PDF 31-40

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2017 Oct Cisco Official New Released 640-911
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Introducing Cisco Data Center Networking

Question No: 31

What is the most efficient Class C IP subnet that allows for at least 67 usable host addresses?

A. 192.168.67.0 255.255.128.0

B. 172.16.100.0 255.255.255.128

C. 192.168.100.0 255.255.255.128

D. 10.100.100.0 255.255.255.128

E. 172.16.67.0 255.255.128.0

F. 10.100.67.0 255.255.128.0

Answer: C

Question No: 32

Ensurepass 2017 PDF and VCE

Refer to the exhibit. What two commands will allow the Nexus 5000 switch to continue to boot? (Choose two.)

A. boot n5000-uk9-kickstart.5.2.1.N1.4.bin

B. load n5000-uk9.5.2.1.N1.4.bin

  1. copy kickstart-latest n5000-uk9-kickstart.5.2.1.N1.4.bin startup

  2. copy system-latest n5000-uk9.5.2.1.N1.4.bin

  3. boot n5000-uk9.5.2.1.N1.4.bin admin-password Cisco123

  4. load n5000-uk9-kickstart.5.2.1.N1.4.bin

Answer: A,B

Question No: 33

At which layer of the OSI model does TCP operate?

  1. 1

  2. 2

  3. 3

  4. 4

  5. 5

Answer: D

Explanation:

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

Question No: 34

Which option is an example of an advanced distance vector routing protocol?

  1. EIGRP

  2. RIP

  3. OSPF

  4. ARP

Answer: A Explanation:

http://en.wikipedia.org/wiki/Enhanced_Interior_Gateway_Routing_Protocol quot;The Enhanced Interior Gateway Routing Protocol (EIGRP) is an advanced

communications protocol that helps automate routing decisions on a computer network.quot;

Question No: 35

What is the binary value of the hexadecimal number 0x511?

A. 10100011001

B. 10101010101

C. 10110010001

D. 10100010001

E. 10100110011

Answer: D Explanation:

Decimal 1297

Binary 10100010001

Hexadecimal 0x511 Roman MCCXCVII Dotted decimal 0.0.5.17

Question No: 36

What RFC standard defines address ranges that are not routable across public networks?

  1. RFC 1919

  2. RFC 1918

  3. RFC 2036

  4. RFC 2050

  5. RFC 5150

Answer: B

Question No: 37

Which device forwards data based on the destination IP address?

  1. repeater

  2. bridge

  3. switch

  4. router

  5. hub

Answer: D

Question No: 38

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Refer to the exhibit. What two destination addresses will be in the packet and frame header generated at PC-A for traffic going to the Server? (Choose two.)

  1. IP address of the Server

  2. MAC address of router interface eth1

  3. IP address of router interface Eth1

  4. MAC address of the Server

  5. IP address of switch interface E1/9

  6. MAC address of switch interface E1/9

Answer: A,B

Question No: 39

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

  1. Discard frame

  2. Send ICMP unreachable message to source

  3. Flood packet on all ports

  4. Compare destination IP address against an ACL to determine if it is permitted

  5. Send gratuitous ARP on all ports and wait for reply before forwarding

Answer: C Explanation:

quot;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. quot; http://telconotes.wordpress.com/2013/03/09/how-a-switch-works/

Question No: 40

How many IP address ranges are specified in RFC 1918?

  1. 1 in Class A, 2 in Class B, and 4 in Class C

  2. 2 in Class A, 4 in Class B, and 8 in Class C

  3. 4 in Class A, 8 in Class B, and 16 in Class C

  4. 1 in Class A, 16 in Class B, and 256 in Class C

Answer: D Explanation:

http://tools.ietf.org/html/rfc1918

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