cisco ccna certifications_ ccna 1_module 4

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CISCO CCNA Certifications: CCNA 1:Module 4

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C I S C O C C N A C E R T I F I C A T I O N S

M O N D A Y , 1 1 A U G U S T 2 0 0 8

CCNA 1:Module 4

Options With Highlight Colours are Correct Answer

1. Based on the transport layer header shown in the

diagram, which of the following statements describe

the established session? (Choose two.)

This is a UDP header.

This contains a Telnet request.

This contains a TFTP data transfer.

The return packet from this remote host will have anAcknowledgement Number of 43693.

This is a TCP header.

2. With TCP/IP data encapsulation, which range of port

numbers identifies all well-known applications?

0 to 255

256 to 1022

0 to 1023

1024 to 2047

49153 to 65535

3. Why are port numbers included in the TCP header of

a segment?

to indicate the correct router interface that should be used

to forward a segment

to identify which switch ports should receive or forward the

segment

to determine which Layer 3 protocol should be used to

encapsulate the data

to enable a receiving host to forward the data to theappropriate application

to allow the receiving host to assemble the packet in the

proper order

4. Which OSI model layer is responsible for regulating

the flow of information from source to destination,

reliably and accurately?

application

presentation

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B L O G A R C H I V E

2008(90)

August(37)

CISCO CCNA netacad 4

semester Questions

640 802 CCNA Recommend

Readings

CCNA 2 v4.0 download
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2/4



session

transport

network

5. Refer to the exhibit. Host A is using FTP to download

a large file from Server 1. During the download

process, Server 1 does not receive an acknowledgment

from Host A for several bytes of transferred data. What

action will Server 1 take as a result?

create a Layer 1 jam signal

reach a timeout and resend the data that needs to be

acknowledged

send a RESET bit to the host

change the window size in the Layer 4 header

6. Why is flow control used for TCP data transfer?

to synchronize equipment speed for sent data

to synchronize and order sequence numbers so data is sent

in complete numerical order

to prevent the receiver from being overwhelmed by incoming

data

to synchronize window size on the server

to simplify data transfer to multiple hosts

7. Which two options represent Layer 4 addressing?

(Choose two.)

identifies the destination network

identifies source and destination hosts

identifies the communicating applications

identifies multiple conversations between the hostsidentifies the devices communicating over the local media

8. Refer to the exhibit. In line 7 of this Wireshark

capture, what TCP operation is being performed?

session establishment

segment retransmit

data transfer

session disconnect

Bottom of Form

9. Refer to the exhibit. What two pieces of information

can be determined from the output that is shown?

(Choose two.)

The local host is using well-known port numbers to identify

the source ports.

A termination request has been sent to 192.135.250.10.

Communication with 64.100.173.42 is using HTTP Secure.

The local computer is accepting HTTP requests.

192.168.1.101:1042 is performing the three-way handshake

CCNA3 v4.0 download

CCNA4 v4.0 download(updated

21/7/2008)

CCNA 3:Module 7

CCNA 3:Module 6

CCNA 3:Module 5

CCNA 3:Module 4

CCNA 3:Module 3

CCNA 3:Module 2

CCNA 3:Module 1

CCNA 2:Final Set 3

CCNA 2:Final Set 2

CCNA 2:Module 11

CCNA 2:Module 10

CCNA 2:Module 9

CCNA 2:Module 8

CCNA 2:Module 7

CCNA 2:Module 6

CCNA 2:Module 5

CCNA 2:Module 4

CCNA 2:Module 3

CCNA 2:Module 2

CCNA 2:Module 1

CCNA 1:Final

CCNA 1:Module 11

CCNA 1:Module 10

CCNA 1:Module 9

CCNA 1:Module 8

CCNA 1:Module 7

CCNA 1:Module 6

CCNA 1:Module 5

CCNA 1:Module 4

CCNA 1:Module 3

CCNA 1:Module 2

CCNA 1:Module 1

July(13)

June(13)

May(27)

L A B E L S

CCNA 1 UPDATED (12)

CCNA 2 UPDATED (12)
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with 128.107.229.50:80.

10. What is dynamically selected by the source host

when forwarding data?

destination logical address

source physical address

default gateway address

source port

11. What are two features of the User Datagram

Protocol (UDP)? (Choose two.)

flow control

low overhead

connectionless

connection-oriented

sequence and acknowledgements

12. What mechanism is used by TCP to provide flow

control as segments travel from source to destination?

sequence numberssession establishment

window size

acknowledgments

13. Which transport layer protocol provides low

overhead and would be used for applications which do

not require reliable data delivery?

TCP

IP

UDPHTTP

DNS

14. Which information is found in both the TCP and

UDP header information?

sequencing

flow control

acknowledgments

source and destination

15. Which three features allow TCP to reliably and

accurately track the transmission of data from sourceto destination?

encapsulation

flow control

connectionless services

session establishment

numbering and sequencing

best effort delivery

16. During a TCP communication session, if the packets

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arrive to the destination out of order, what will happen

to the original message?

The packets will not be delivered.

The packets will be retransmitted from the source.

The packets will be delivered and reassembled at the

destination.

The packets will be delivered and not reassembled at the

destination.

17. Which is an important characteristic of UDP?

acknowledgement of data delivery

minimal delays in data delivery

high reliability of data delivery

same order data delivery

18. After a web browser makes a request to a web

server that is listening to the standard port, what will

be the source port number in the TCP header of the

response from the server?13

53

80

1024

1728

19. Which event occurs during the transport layer

three-way handshake?

The two applications exchange data.

TCP initializes the sequence numbers for the sessions.

UDP establishes the maximum number of bytes to be sent.The server acknowledges the bytes of data received from

the client.

POSTED BY SNOWANGEL AT 04:07

LABELS: CCNA 1 UPDATED

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