ccna 1 chapter 7 v5 exam answers 2016

8/16/2019 CCNA 1 Chapter 7 v5 Exam Answers 2016

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CCNA 1 Chapter 7 v5 Exam Answers 2016

1

A PC is downloading a large file from a server. The TCP window is 1000 bytes. The

server is sending the file using 100-byte segments. How many segments will theserver send before it requires an acnowledgment from the PC!

1 segment

10 segments"

100 segments

1000 segments

#

A host device needs to send a large video file across the networ while $roviding

data communication to other users. %hich feature will allow different communication

streams to occur at the same time& without having a single data stream using all

available bandwidth!

multi$le'ing "

window size

acknowledgments

port nm!ers

(

A technician wishes to use T)TP to transfer a large file from a file server to a remote

router. %hich statement is correct about this scenario!

"he #ile is segmented and then reassem!led in the correct order !$ "C%&

"he #ile is not segmented' !ecase ()% is the transport la$er protocol that is sed !$ "*"%&

+arge #iles mst !e sent !$ *"% not "*"%&

The file is segmented and then reassembled in the correct order at the destination& if

necessary& by the u$$er-layer $rotocol."

*. +efer to the e'hibit. Consider a datagram that originates on the PC and that is

destined for a web server. ,atch the P addresses and $ort numbers that are in that

datagram to the descri$tion. /ot all o$tions are used.


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1#.123.1.# -4 source P address

1#.123.#.# -4 destination P address

#563 -4 source $ort number

30 -4 destination $ort number

5

%hich scenario describes a function $rovided by the trans$ort layer!

A stdent is sing a classroom ,o-% phone to call home& "he ni.e identi#ier !rned intothe phone is a transport la$er address sed to contact another network device on the same

network&

A corporate worker is accessing a we! server located on a corporate network& "he transport

la$er #ormats the screen so the we! page appears properl$ no matter what device is !eing

sed to view the we! site&

A student has two web browser windows o$en in order to access two web sites. The


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trans$ort layer ensures the correct web $age is delivered to the correct browser

window."

A stdent is pla$ing a short we!/!ased movie with sond& "he movie and sond are

encoded within the transport la$er header&

2

%hich trans$ort layer feature is used to guarantee session establishment!

()% AC #lag

TCP (-way handshae"

()% se.ence nm!er

"C% port nm!er

6

%hat is the com$lete range of TCP and 78P well-nown $orts!

0 to 255

256 102

0 to 10#("

1023 34151

3

%hich two TCP header fields are used to confirm recei$t of data!

checksm

acnowledgment number"

*-N #lagsequence number"

N #lag

%hat is a beneficial feature of the 78P trans$ort $rotocol!

acknowledgment o# received data

tracking o# data segments sing se.ence nm!ers

fewer delays in transmission"

the a!ilit$ to retransmit lost data

10

%hich two flags in the TCP header are used in a TCP three-way handshae to

establish connectivity between two networ devices! Choose two.

"

*-N


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9:/"

AC;"

(8

%9

11

%hat ha$$ens if the first $acet of a T)TP transfer is lost!

The T)TP a$$lication will retry the request if a re$ly is not received."

"he next/hop roter or the de#alt gatewa$ will provide a repl$ with an error code&

"he client will wait inde#initel$ #or the repl$&

"he transport la$er will retr$ the .er$ i# a repl$ is not received&

1#

Com$ared to 78P& what factor causes additional networ overhead for TCP

communication!

the identi#ication o# applications !ased on destination port nm!ers

the checksm error detection

the encapslation into -% packets

networ traffic that is caused by retransmissions"

1(. ,atch the characteristic to the $rotocol category. /ot all o$tions are used.


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TCP -4 window sioth 78P and TCP -4 checsum

>oth 78P and TCP -4 $ort number

1*

%hich factor determines TCP window si


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the amont o# data the sorce is capa!le o# sending at one time

the amont o# data to !e transmitted

15. ,atch each a$$lication to its connectionsless or connection-oriented $rotocol.

TCP -4 HTTP

TCP -4 )TP

TCP -4 T?@/?T

78P -4 T)TP

78P -4 8HCP

12

8uring a TCP session& a destination device sends an acnowledgment number to the

source device. %hat does the acnowledgment number re$resent!

the last se.ence nm!er that was sent !$ the sorce

one nm!er more than the se.ence nm!er


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the ne't byte that the destination e'$ects to receive"

the total nm!er o# !$tes that have !een received

16

%hat is a socet!

the com!ination o# the sorce and destination se.ence nm!ers and port nm!ers

the com!ination o# the sorce and destination se.ence and acknowledgment nm!ers

the combination of a source P address and $ort number or a destination P address

and $ort number"

the com!ination o# the sorce and destination -% address and sorce and destination

Ethernet address

13

)ill in the blan.

)ring a "C% session' the :9:/; #ield is sed !$ the client to re.est commnication

with the server&

1

)ill in the blan using a number.

A total o#


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##

%hat does a client a$$lication select for a TCP or 78P source $ort number!

a prede#ined vale in the d$namic port range

a prede#ined vale in the range o# the registered ports

a prede#ined vale in the well/known port rangea random vale in the d$namic port range

a random value in the range of the registered $orts"

a random vale in the well/known port range

7P8AT? %TH B7?9T/9 CC/A v5.1

#(. How many bits are in an Pv* address!

(#"

6312=

256

#*. %hich two $arts are com$onents of an Pv* address! Choose two.

s!net portion

networ $ortion"

logical portion

host $ortion"

ph$sical portion

!roadcast portion

#5. %hat does the P address 16#.16.*.#50D#* re$resent!

network address

mlticast address

host address"

!roadcast address

#2. %hat is the $ur$ose of the subnet mas in conunction with an P address!

to ni.el$ identi#$ a host on a network

to identi#$ whether the address is p!lic or private

to determine the subnet to which the host belongs"

to mask the -% address to otsiders


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#6. %hat subnet mas is re$resented by the slash notation D#0!

255&255&255&23=

255&255&223&0

#55.#55.#*0.0"

255&255&255&0

255&255&255&142

#3. A message is sent to all hosts on a remote networ. %hich ty$e of message is it!

limited !roadcast

mlticast

directed broadcast"

nicast

#. %hat are three characteristics of multicast transmission! Choose three.

"he sorce address o# a mlticast transmission is in the range o# 223&0&0&0 to 223&0&0&255&

A single $acet can be sent to a grou$ of hosts."

,ulticast transmission can be used by routers to e'change routing information."

The range of ##*.0.0.0 to ##*.0.0.#55 is reserved to reach multicast grou$s on a local

networ."

Compters se mlticast transmission to re.est -%v3 addresses&

>lticast messages map lower la$er addresses to pper la$er addresses&

(0. %hich three P addresses are $rivate ! Choose three.

10.1.1.1"

172&2&5&2

142&167&10&10

16#.12.*.*"

1#.123.5.5"

223&6&6&6

(1. %hich two Pv* to Pv2 transition techniques manage the interconnection of Pv2

domains! Choose two.

trnking

dual stac"

encapslation


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tunneling"

mltiplexing

(#. %hich of these addresses is the shortest abbreviation for the P addressE

())? E 10** E 0000 E 0000 E 00A> E 0000 E 0000 E 0056!

**E ? 1033 ?? A@ ?? 57

**E ? 1033 ?? 00A@ ?? 0057

())? E 10** E 0 E 0 E A> EE 56"

**E ? 1033 ? 0 ? 0 ? 00A@ ?? 0057

**E ? 1033 ? 0000 ? 0000 ? 00A@ ?? 57

**E ? 1033 ? 0000 ? 0000 ? 00A@ ?? 0057

((. %hat ty$e of address is automatically assigned to an interface when Pv2 isenabled on that interface!

glo!al nicast

lin-local"

loop!ack

ni.e local

(*. %hat are two ty$es of Pv2 unicast addresses! Choose two.

mlticastloo$bac"

lin-local"

an$cast

!roadcast

(5. %hat are three $arts of an Pv2 global unicast address! Choose three.

an inter#ace -) that is sed to identi#$ the local network #or a particlar host

a glo!al roting pre#ix that is sed to identi#$ the network portion o# the address that has

!een provided !$ an -%

a subnet 8 that is used to identify networs inside of the local enter$rise site"

a glo!al roting pre#ix that is sed to identi#$ the portion o# the network address provided !$

a local administrator

an interface 8 that is used to identify the local host on the networ"


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(2. An administrator wants to configure hosts to automatically assign Pv2 addresses

to themselves by the use of +outer Advertisement messages& but also to obtain the

8/9 server address from a 8HCPv2 server. %hich address assignment method

should be configured!

+AAC

stateless 8HCPv2"

state#l )9C%v6

A and E(-/63

(6. %hich $rotocol su$$orts 9tateless Address Autoconfiguration 9@AAC for

dynamic assignment of Pv2 addresses to a host!

A%v6

)9C%v6C,Pv2"

()%

(3. %hich two things can be determined by using the $ing command! Choose two.

the nm!er o# roters !etween the sorce and destination device

the -% address o# the roter nearest the destination device

the average time it takes a packet to reach the destination and #or the response to retrn to

the sorce

the destination device is reachable through the networ"

the average time it takes each roter in the path !etween sorce and destination to respond

(. %hat is indicated by a successful $ing to the EE1 Pv2 address!

"he host is ca!led properl$&

"he de#alt gatewa$ address is correctl$ con#igred&

All hosts on the local link are availa!le&

"he link/local address is correctl$ con#igred&

P is $ro$erly installed on the host."

(. A user is e'ecuting a tracert to a remote device. At what $oint would a router&which is in the $ath to the destination device& sto$ forwarding the $acet!

when the roter receives an -C>% "ime Exceeded message

when the "" vale reaches zero

when the host responds with an -C>% Echo epl$ message

when the value in the TT@ field reaches


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when the vales o# !oth the Echo e.est and Echo epl$ messages reach zero

*0. %hat field content is used by C,Pv2 to determine that a $acet has e'$ired!

""+ #ield

CC #ield

Ho$ @imit field"

"ime Exceeded #ield

*1. )ill in the blan.

"he decimal e.ivalent o# the !inar$ nm!er 10010101 is

ccna 1 chapter 7 v5 exam answers 2016

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