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Latest CCNA Dumps Updated July 2013 | CCNA Dumps PDF

Download Latest CCNA Dumps Updated in July 2013 in PDF format.

Total number of questions in this CCNA dumps is around 700 with explanation. Download link given below after questions.

Some sample questions with explanation.

QUESTION 1

A medium-sized company has a Class C IP address. It has two Cisco routers and one non-Cisco router. All three routers are using RIP version 1. The company network is using the block of 198.133.219.0/24. The company has decided it would be a good idea to split the network into three smaller subnets and create the
option of conserving addresses with VLSM. 

What is the best course of action if the company wants to have 40 hosts in each of the three subnets?

A. Convert all the routers to EIGRP and use 198.133.219.32/27, 198.133.219.64/27, and 198.133.219.92/27 as the new subnetworks.
B. Maintain the use of RIP version 1 and use 198.133.219.32/27, 198.133.219.64/27, and 198.133.219.92/27 as the new subnetworks.
C. Convert all the routers to EIGRP and use 198.133.219.64/26, 198.133.219.128/26, and 198.133.219.192/26 as the new subnetworks.
D. Convert all the routers to RIP version 2 and use 198.133.219.64/26, 198.133.219.128/26, and 198.133.219.192/26 as the new subnetworks.
E. Convert all the routers to OSPF and use 198.133.219.16/28, 198.133.219.32/28, and 198.133.219.48/28 as the new subnetworks.
F. Convert all the routers to static routes and use 198.133.219.16/28, 198.133.219.32/28, and 198.133.219.48/28 as the new subnetworks.

Correct Answer: D

Explanation:(As given in CCNA Dumps)

This company implemented the routing protocol RIP version 1 at the start, but RIP version2 is the best choice for it due to small-scale, first, it needs less configuration when modifying, which will least affect the network; second, RIP version2 supports classless routing, fully satisfying the requirements.

QUESTION 2

Select the action that results from executing these commands.
Switch(config-if)# switchport port-security
Switch(config-if)# switchport port-security mac-address sticky

A. A dynamically learned MAC address is saved in the startup-configuration file.
B. A dynamically learned MAC address is saved in the running-configuration file.
C. A dynamically learned MAC address is saved in the VLAN database.
D. Statically configured MAC addresses are saved in the startup-configuration file if frames from that address are received.
E. Statically configured MAC addresses are saved in the running-configuration file if frames from that address are received.

Correct Answer: B

Explanation:

In the interface configuration mode, the command switchport port-security mac-address sticky enables sticky learning. When entering this command, the interface converts all the dynamic secure MAC addresses to sticky secure MAC addresses.

QUESTION 3

The corporate head office has a teleconferencing system that uses VOIP(voice over IP) technology. This system uses UDP as the transport for the data transmissions. If these UDP datagrams arrive at their destination out of sequence, what will happen?

A. UDP will send an ICMP information Request to the source host.
B. UDP will pass the information in the datagrams up to the next OSI layer in the order that they arrive.
C. UDP will drop the datagrams.
D. UDP will use the sequence numbers in the datagram headers to reassemble the data in the correct order.

Correct Answer: B

Explanation:(As given in CCNA Dumps)

VOIP systems utilize UDP because it is faster and uses less overhead. In addition, the reliable transport mechanism used in TCP is useless to VOIP because if a packet gets dropped and needs to be resent, it will be already too late.

UDP provides a service for applications to exchange messages. Unlike TCP, UDP is connectionless and provides no reliability, no windowing, and no reordering of the received data . However, UDP provides some functions of TCP , such as data transfer, segmentation, and multiplexing using port numbers, and it does so
with fewer bytes of overhead and with less processing required. UDP data transfer differs from TCP data transfer in that no reordering or recovery is accomplished. 
Applications that use UDP are tolerant of lost data,
or they have some application mechanism to recover data loss.
ReferencE. CCNA Self-Study CCNA INTRO exam certification Guide (Cisco Press, ISBN 1- 58720-094-5)Page 161.

Download Link : Latest CCNA DUMPS

2 comments:

  1. akram1:44 pm

    valid 100% passed today 4th july..

    ReplyDelete
  2. pdf still valid, passed today 24th August with 983 marks.. explanation was really helpful

    ReplyDelete