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Introducing Cisco Data Center Networking

Question No: 41

Which three statements are true concerning RFC 1918 IP addresses? (Choose three.)

1. They are globally routable.

2. They are not globally routable.

3. They must not be filtered at Internet border interfaces.

4. They should be filtered at Internet border interfaces.

E. They include 10.0.0.0/8, 172.16.0.0/16, and 192.168.1.0/24.

F. They include 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16.

Answer: B,D,F Explanation:

quot;The Internet Assigned Numbers Authority (IANA) has reserved the following three blocks of the IP address space for private internets:

10.0.0.0 – 10.255.255.255 (10/8 prefix)

172.16.0.0 – 172.31.255.255 (172.16/12 prefix)

192.168.0.0 – 192.168.255.255 (192.168/16 prefix)quot;

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

Question No: 42

What is the maximum distance for 100Base-TX?

1. 10m

2. 100m

3. 400m

4. 500m

Answer: B

Question No: 43

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

1. RAM

2. flash

3. bootflash

4. volatile

5. NVRAM

Answer: E Explanation:

quot;A persistent copy of Cisco Router configuration file is called as quot;startup-configquot; file. The quot;startup-configquot; file is kept in NVRAM and the contents of the quot;startup-configquot; file are retained after a reboot.quot;

http://www.omnisecu.com/cisco-certified-network-associate-ccna/cisco-router- configuration-files.php

Question No: 44

An engineer replaces multiple hubs in the network with Layer 2 switches. What are two effects on the performance of the network? (Choose two.)

1. reduced number of frame collisions

2. multiple devices can transmit and receive frames simultaneously

3. reduced broadcast packet propagation

4. reduced complexity in monitoring traffic within the Layer 2 domain

5. reduced number of packet collisions

Answer: A,B

Question No: 45

Which two statements describe the purpose of RFC 1918? (Choose two.)

1. Establish a range of IP addresses that are dedicated to the growing use of multicast video.

2. Establish a range of IP addresses that are dedicated to the growing use of peer-to-peer file-sharing applications.

3. Establish a range of IP addresses that are dedicated to use on internal networks.

4. Establish a range of IP addresses to address the shrinking pool of globally routable addresses.

5. Delay the transition to IPv6.

Answer: C,D Explanation:

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

Question No: 46

Which option is an example of a link-state routing protocol?

1. EIGRP

2. RIP

3. OSPF

4. ARP

Answer: C Explanation:

http://en.wikipedia.org/wiki/Link-state_routing_protocol

quot;A link-state routing protocol is one of the two main classes of routing protocols used in packet switching networks for computer communications (the other is the distance-vector routing protocol). Examples of link state routing protocols include open shortest path first (OSPF) and intermediate system to intermediate system (IS-IS).quot;

Question No: 47

An engineer wants to repurpose a Cisco Nexus 7010 Switch for use in a lab and needs to restore the switch to factory defaults. Which two commands are required? (Choose two.)

1. write erase boot

2. write erase debug

3. copy running-config startup-config

4. reboot

5. reload

6. copy startup-config running-config

Answer: A,E

Question No: 48

On most keyboards, the Up arrow and Down arrow keys move through the command history. Which two key sequences can be used as alternatives? (Choose two.)

1. Alt-A

2. Alt-F

3. Alt-N

4. Alt-E

5. Alt-P

Answer: C,E Explanation:

quot;Alt-P History search backwards Alt-N History search forwardsquot;

http://www.cisco.com/en/US/docs/switches/datacenter/nexus5000/sw/configuration/guide/cl i_rel_4_0_1a/begin.html

Question No: 49

When configuring a trunk port on a Nexus switch, what two options must be configured before the port will participate in a 802.1Q trunk group? (Choose two.)

1. configure a native VLAN

2. enable trunking

3. set port speed and duplex

4. configure 802.1Q encapsulation

5. enable spanning tree loop-guard

Answer: A,B

Question No: 50

You are designing a network that provides FCoE, FabricPath, OTV, and Layer 3 functionalities. Which device can perform these functionalities?

1. Cisco Nexus 5500 Series Switches

2. Cisco Nexus 7000 Series Switches

3. Cisco Catalyst 6500 Series Switches

4. Cisco ASR 1001 Router

Answer: B

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