ccna 1000 braindump

I have tried to write all the 65 questions I got in my exam

Correct answers what i think are marked with a #\ YOu can rely on me on these sections.

Routing - 100%

Bridging & Switching - 100 %

Cisco IOS basics & configurations - 100%

1.What is the requirement of OSI ?

#a. interoperatability between vendors.

b. defines a standard for how a pc works.

c. & d. were junk.

2.They will give a question which contains some of the functions of the OSI

layers like physical - does decisions on physical , mechanical chara . etc. the

functions are marked 1,2 3. we have to arrange in order which all layers will

map to which all functions.

3. An enterprise server. is there. 2 domains sales & management are

accesssing this server.. we want to have security between these 2 domains. what

will u use.

a & b were junk

#c. use a router

d. use a switch with access-lists applied. ( i think this is wrong- any how i

marked c which i think got correct.).

4. What is the term used , when a packet using one protocol is encapsulated

using another protocol..... ( such as IP) ......

Tunneling


file:///F|/Dnld201/ccnarqs.htm (1 of 25) [10/11/2000 13:53:52]

5. 8 PCs are connected to a switch each have 10 Mbps BW. what will be the

individual bandwidth available to each.

a.80

b.20

#c.10

d.5

6. What r the 2 layers of the Data Link Layer?

LLC & MAC

7. What r the three basic switch functions among the following.

a & b were junk

#c address learning

#d broadcast filtering ( i marked this since it is possible with

VLANS)

e packet forwarding / filtering

#f loop avoidance

8 . 238.255.255.255 falls into which group

Multicast

9 what r the 2 parts of a IPX address.?

network and node( mac ) address,

10 ICMP & RFC 1700 is implemented in all tcp/ip hosts.

a. true

#b.false

i marked false bcos what i thought was that rfc 1700 defines well known ports. &



icmp uses no ports ....

11. Advantages of Lan segmentation

( key to answering these type of questions is to be through with broadcast &

collision domains

Device Used Broadcast Domain Collision Domain

\trowd\trgaph150\cellx3369\cellx6364\cellx9359\pard\intbl\b Device used

\b0\cell\b Broadcast Domain\b0\cell\b Collision Domain\b0\cell\row

\b\trowd\trgaph150\cellx3369\cellx6364\cellx9359\intbl Repeater\b0\cell\b

Single\b0\cell\b Single\b0\cell\row

\b\trowd\trgaph150\cellx3369\cellx6364\cellx9359\intbl Hub\b0\cell\b

Single\b0\cell\b Single\b0\cell\row

\b\trowd\trgaph150\cellx3369\cellx6364\cellx9359\intbl Bridge\b0\cell\b

Single\b0\cell\b Multiple\b0\cell\row

\b\trowd\trgaph150\cellx3369\cellx6364\cellx9359\intbl Switch\b0\cell\b

Single\b0\cell\b Multiple\b0\cell\row

\b\trowd\trgaph150\cellx3369\cellx6364\cellx9359\intbl Switches with

VLAN\b0\cell\b Multiple\b0\cell\b Multiple\b0\cell\row

\b\trowd\trgaph150\cellx3369\cellx6364\cellx9359\intbl Router\b0\cell\b

Multiple\b0\cell\b Multiple\b0\cell\row

Bridges & Switches create a single broadcast domain but

increases no: of collision domains, or decreases collisions, decreases size of

collision domains.



12 Assuming no subnetting, given the ip address 172.16.10.22, what all can u

learn from this,

#a) class = B

b) class = C

#c) host address = 0.0.10.22

d) network address = 172.16.10.0

e) network address= 172.0.0.0

13 advantages of segmenting with a bridge....

14 Function of a bridge.....

15 What is the broadcast addr. in a 802.3 Ethernet LAN

a) 255.255.255.255

#b) ff-ff-ff-ff-ff-ff

c) ff-00-ff-00-ff-00

16)What r the advantages of UDP

ans: less overhead due to lack of acknowledgements

17) what r the operational phases of a connection oriented protocol

call setup, data transfer, and call disconnection\b0\par

18) how to configure rip routing?

router rip

network <addr>

19)how can u establish inter-vlan communication ?

a) a cisco router can be used.



#b) a cisco router with ISL running can be used.

c) junk..

20) What is the protocol used in switches & bridges to avoid loops?

Spanning Tree Protocol...

21) Two methods of switching used are cut through and store&forward.... a

modified version is available.. what is the speciality bout this

switching...

a) junk

b)it waits 4 50% of the frame to arrive and then forward..

#c) it waits till the data field arrives and then forwards it.

22) How to enable rip routing....

23) When does hold down timer resets ?

#a) hold down timer naturally expires.

#b) when an update is received telling that the n/w that was down is up

now.

#c) when an update is received telling a route to the n/w with a better

metric.

d) when a processing task proportional to link to the n/w is obtained. ( this

is given i n Todd Lammle- which i didnt get what he was meaning..... i thought

the other three were right and i got it correc t.)

24)Where r the buffers, ARP caches and routing tables stored?

RAM

25) when u get %incomplete command what 'll u do?

retype the command and press ?

26)which of the following will help u come to know that u have executed the



shutdown command in the serial interface.

serial 1 administratively down, line protocol is down

27) u wanna set "cisco " as ur line console password . what commands will ya

use.

a)line console 0

login

password CISCO

b) & c) junks & craps

#d) line console 0

login

password cisco

password is case sensitive eventhough commands r not.......

28) when u type "show startup-config" where do ya see the ip or ipx

addressses configured in the interfaces section ( under each interface)

29) How will ya upgrade to a new version of IOS...

copy tftp flash

30) For efficient routing what do u need

destination address of the incoming packet.( this was the only choice

sensible in that )

31)how do ya know that u r in the privileged mode....

seeing the #\

32) how do ya backup flash....

copy flash tftp



33)which key fills the command 4 u?

tab key

34) isdn uses which of the following encaps.

a) ppp & ip

#b)ppp & hdlc

c) ppp & sdlc

d) junk

35) how to implement accesslists on an interface..

1) create them

2) apply them on an interface.

36) What does the command show access-lists 101 list?

lists the contents of extended accesslist 101

37) which command from the following shows ur access-lists?

a) sh ip interface

#b) sh access-lists

#c) sh ip access-lists

d) junk

38)The number of collisions in Full Duplex Fast Ethernet ?

zero.

39) an exhibit

\pard\keepn\sb100\sa100\b\fs16 interface ethernet 0\par



network 4a

ip access-group 800

interface ethernet 1

network 3d

interface ethernet 2

network 5c

what is the effect of having the following access-list on interface e0?

access-list 800 permit 3d 4a

#a) it is applied on an outbound interface

#b) it will permit traffic from 3d to 4a

c) it will deny traffic from 4a to 5c and 3d

40)what does the "base" in 10baseT stand 4?

signalling type.

41) What is back-off?

it is time delay between collision and retransmission

42) Compare between 10BaseT and Fast Ethernet ?

all choices given were factors in common for both.. except 4 one..

43)how can u know bout the router ios hardware platform, size of ios image

file, nvram, flash size etc.

show version

44)What r the functions of ICMP ?

to give and receive echo messages, destination unreachable messages etc. be

thorough with icmp messages.



45) given 172.37.2.56 amd a s/n mask of 255.255.255.192 find the subnet in

which this falls.

46) can ipx traffic coexist in the same data link layer.

true

47) in ipx addresssing how is the node part specified.

it is implied. ( MAC addr. itself.)

48)How to configure IGRP on a router with AS number of 100

router igrp 100

49) In a frame relay cloud, one router on one end does not support IARP. so

what ll u do to connect to that create a static mapping of the next hop addr. with the dlci.

50) Given 170.16.2.160/26 what is the subnet no:

51) How can u configure subinterfaces in a point-2-point link in frame relay

1) remove any ip addr. of the interface.

2) add local dlci

( actually the process contains more steps . but these were the sensible

choices)

52) A company XYZ has an employee who wants to transfer large files for his

client server based applications...

( some junk) what can he use 4 that..

use ISDN connection..



53) 3 advantages of ISDN

#a) call setup is faster.

#b) data, voice, video

#c) faster than ordinary modems

d) e) f) g) junk & crap

54) What is the definition of CIR ?

a) it is the rate at which the FR switch agrees to transfer the data

#b) it is maximum rate that is possible measured in the COmmited Measurement

Rate Interval.

( i think b is correct , eventhough i think i got this question wrong. check

whether a or b is correct)

55) Two routers communicate through FR. if one is not possible to connect to

the other, what r the possible commands that could be used to verify whether the

other router is reachable or not>>>>>>

#a) sh frame-relay map

b) debug frame-relay map

#c) sh ip route

d) junk

56) 3 or 4 questions from OSI.... study it with utmost care.......

57) i got one exhibit which i took some time to resolve it but i finally got

it correct. Look out 4 the messages that the router displays while

booting

1)Bootstrap messages



2)Cisco IOS bootup messages ( Cisco Internetworking Operating SYtems +

etc.....)

3)The initial configuration dialog ( like " NVRAM invalid due to write erase

. do u want to enter intial config. dialog ?"). etc

1. Which two of the following is true for store & forward switching:

a. latency varies with the frame length

b. works at wire speed

c. entire frame is copied & checked for errors.

d. checks only the first 64 bytes.

e. default mode of switching for 1900 switch

2. Which are the two primary operating modes of switching :

a. cut through

b. store & forward.

c. full-duplex

d. half-duplex

3. To enable RIP which two tasks have to be performed:

a. specify routing protocol

b. configure static RIP routing.

c . specify directly connected subnet

d. specify directly connected network

4. Enter the command to enable RIP V1 on a router(typing)



5. What r the 2 most common request with ICMP message when using PING ?

a. echo request

b. echo reply.

c. ping unsuccessful

d. timeout

6. What is the result of using hierarchical addressing framework?

a. increased available address

b. decreased distance b/w the routers

c. increased router memory

d. no need to maintain routing information.

7. Which 3 statements about frame relay config using sub interfaces r true.

a. sub interfaces are denoted by 0.1 & 0.2

b. frame relay uses IP addressing scheme

c. it uses split horizon to reduce the no. of routing loops.

d. default is NBMA

8. ICMP is used by which of the foll. protocols

a. ping

b. telnet

c. trace route

d. ftp

9. Which 3 of the following statements r true about frame tagging.

a. Uses USL method

b. uses 803.1d

c. VLAN ID is added.



d. Uses ISL method.

e. Functions at layer 3

f. attaches a unique ID on the header

10.What are the typical operational phases in a connection oriented network

a. Call setup

b. data transfer

c. call contact

d. call release

e. recombination

f. data relocation

11.Given IP address 172.20.7.160 & S.M. 255.255.255.192

calculate the broadcast address.

12. Which of the following is layer 2 device?

a: switch

b. router

c. bridge

d. hub

13. What r the 4 characteristics of OSI network layer?

a. maintains routing table

b. split addressing scheme

c. separate collision domains

d. single broadcast domain

e. routed protocols work here

f. uses MAC addressing.



14. What are 3 basic switch functions.

a. increase bandwidth on the n/w.

b. loop avoidance

c. addressing

d. hop count limiting

e. broadcast filtering

f. packet forwarding.

15. If a show spantree command is executed, which line indicate that VLAN is functioningproperly?(typing)

16. What are the benefits of using OSI layer.

a. standardization of terminologies.

b. Multi-vendor interoperable network devices.

c. Increased layered approach

d. Each layer has an independent approach.

17 Which two of the following statements are true about bridge

a. Floods multicast

b. Floods broadcast

c. Does not flood multicast

d. Does not flood broadcast

18. What are the three steps to configure DDR on BRI connection\par

a. Dialer info

b. Interesting traffic

c. Define DDR password to exchange when loop comes up

d. Static route.



e. spid

f. ISDN status

19. In a LAN network that uses IPX address, what do you use along with the

network number

a. IP address

b. Default gateway

c. Default route

d.MAC address of the NIC

20. Which command should you use to configure a router so that it can

become a tftp server

a. copy flash tftp

b. copy tftp server

c. hook network (router name)

d. tftp server <filename>

21. which router component stores routing buffer, ARP cache and packet

buffer?

a. ROM

b. RAM

c. NVRAM

d. FLASH

22. Which command displays all commands in the history buffer

a. Show history

b. Show nvram

c. Show terminal history



d. Show buffer

23 which of the following ping are correct.

a. ping 192.B.C.0

b. ping valid address

c. A.B.256

d. ping 192.B.C.255

24. Range of addresses is as follows:

10.0.0.0-10.255.255.255

172.16.0.0-172.31.255.255

192.168.0.0- 192.168.255.255

what does this denote ?

a.MAC addresses

b.IP address

c.DDR address

d.Private address

25.How do you configure IGRP on a router with an AS of 100

a. Router IGRP 100

b. Router IGRP 10

c. IGRP router 100

d. IGRP is enabled by default

26.What is the distance of a 100BaseT

a. 100 m

b. 200 m

c. 300 m



d. 500 m

27. Which command gives a list of all configured DLCIs

a. Show frame-relay

b. Show frame-relay

c. Show frame relay

d. Show svc

28. Addressing in a frame relay is done through

a. LMI

b. DLCI

c. PVC

d. SVC

29. what is the access list command that has to be entered in the router to

prevent the user from 210.93.105.0 from using FTP to 223.8.151.0

a. access-list 101 deny tcp 210.93.105.0 0.0.0.255

223.8.151.0 0.0.0.255 eq ftp

b. access-list 101 deny tcp 223.8.151.0 0.0.0.255

210.93.105.0 0.0.0.255 eq ftp\par

c. access-list 101 deny tcp 223.8.151.0 0. 0.0.255

210.93.105.0 0.0.0.255

eq FTP access list 102 permit any any



d. access-list 101 deny tcp 210.93.105.0 0.0.0.255

0.0.0.255 eq ftp access-list 101 permit any any\par

30. What are the commands to see access-lists configured on your

interface(choose all that apply)

a. Show access-list

b. Show access-lists

c. Show ipx access-list

d. Show run\par

31. To prevent loops and ensure that there is only one path, which protocol do

you use

a. STG

b. Split Horizon

c. STA

d. STP

32. Which two statements are true regarding configuration of

subinterfaces

a. Remove all IP addresses

b. Give a default gateway

c. Configure DLCI on each interface

d. Configure LMI on each interface

33. what are the steps in data encapsulation



a. data-segment-frame-packet-bits

b. data-segment-packet-frame-bits

c. data-packet-segment-frame-bits

d. data-bits-segment-frame-packet

34. What is true about connection oriented and reliable packet transfer

a. It has less overhead than a connection-less

protocol

b. It follows a 3-way handshake

c. Example is TCP

d. Example is UDP

35.Jane has accidentally telnetted into various sessions on different

routers.She wants to suspend different sessions immediately. How can she achieve

this

a. Suspend

b. Quit

c. Ctrl+shift+6

d. Ctrl+shift+6 then

36. Tom runs a software company which is into appln development, programming,

inventory etc., He wants to divide these depts.., and at the same time wants

to maintain security & wants to minimize costs. How does he achieve this ?

a. A hub

b. A switch

c. A switch along with access-list to each port

d. A router



37.fast Ethernet is 100 times faster than std., Ethernet

True/False

38. ICMP(rfc 1700) is enabled on all TCP/IP hosts by default

True/false

39. To transfer data at high speed ,prefferd technology

a. 10baseT

b. ISDN BRI

C. 10base5

D. firewall

40. There is a LAN with a lot of collision taking place using a Hub, how do u

reduce the collision

a. Switch

b. add one more Hub

c. router

d. bridge

41. what is the error message displayed for the command CL ?

a. ambigious command

b. invalid command

c. shows clock and clear

d. gives all the options

42. How do you copy an IOS image into a router

a. copy ftp flash

b. copy tftp flash



c. copy flash tftp

d. copy flash ftp

43. which is the link-state protocol that is present in TCP/IP stack

a. RIP

b. IGRP

c. OSPF

d. EIGRP

44. VLSM is supported by(Choose all that apply)

a.\tab OSPF

b.\tab EIGRP

c.\tab RIPv2

d.\tab IGRP

45. In a 100 base T std., what does base stand for

a. spectrum

b. signal

c. device

d. speed

e.bandwidth

46. You want to connect to a frame relay network that does not support inverse

ARP.what do u do

a. give a dynamic entry

b. give a static entry

c. use static map to a local DLCI

d. use gateway



47. How do you find LMI is enabled in an interface or not

a. show frame-relay LMI-type ansi

b. show frame-relay LMI

c. show frame-relay

d.show frame-relay

48. Given IP address 172.16.15.8, required 2 subnets and 35

hosts/subnet. Find the subnet mask.

a. 255.255.255.192

b. 255.255.192.0

c. 255.192.0.0

d. 255.255.255.224

49. What is the use of a VLAN

a. creates more broadcast domains

b. creates more multicast domains

c. creates more unicast domains

d. all of the above

50. What is CIR

a.the rate at which the DTE can send data for an

individual circuit for which the provider has already committed.

b. the rate at which the DCE can send data for an individual circuit for

which the provider has already committed.

c. It is a link between DTE and DCE

d. All of the above



51. Which series of ISDN recommendations specifys Switching and Signalling

a. I

b. Q

c. E

d. F

e. S

52. Which of the following will allow you to view nvram contents

a. show config

b. show protocols

c. show version

d. show running config

e. show start-up config

53. what does show CDP neighbors command not show

a. Device ID

b.Hardware platform

c. Ios verson

d. Port type and number

54. Which command does not show two devices are not routing packets between them

successfully

a. ping

b. trace

c. show interface

d. telnet



55. what helps mitigate problems with link state protocols (any two)

a. minimize router resource usage

b. co-ordinate updates

c. minimum hop-counts

d.distance vectoring

56. which frame type use DSAP and SSAP to identify upper layer protocol

a. 802.3

b. 802.5

c. 802.2

d.Ethernet_IIr

57. IPX can have different encapsulation on the same data link layer

TRUE/FALSE

58. WAN data link protocols that can support multiple protocols are (choose

two)

a. ppp

b. slip

c. sdlc

d. hdlc

59. Based on address 238.255.255.255 what is the protocol and type of

address

a. MAC and Multicast

b. IP and Muticast

c. IP and Broadcast



d. None of the above



ccna 1000 braindump

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