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CCNA Semester 1, CCNA 1 FiNal (100%) Answers

2009-08-03T10:27:00.000-07:00

Learning-ccna.blogspot.com

What is accomplished by segmenting a LAN with a bridge?

(True)increase large collision domains

reduce large collision domains

reduce small broadcast domains

increase small broadcast domains

How many Telnet sessions can take place simultaneously on a router running a sta

ndard edition of the IOS?

(True)5

What is a disadvantage of cut-through switching?

(True)no error checking

a decrease in error checking

decrease in number of collision domains

decrease in bandwidth

increased latency

Which of the following are data link layer encapsulation details? (Choose two.)

(True)Packets are put into frames.

Data is packaged into a packet.

Data is segmented into segments.

Data is converted for Internet travel.

(True)An address is added to identify the directly connected device.

Select the characteristics specified by 10BaseT. (Choose three.)

(True)twisted pair cable

T style connectors

(True)baseband transmission

10 gigabits per second data rate

(True)10 megabits per second data rate

decimal encoded data transmission

A LAN is to be added to an unused router Ethernet interface. What steps must be

performed to configure this interface to allow connectivity to the hosts on this

LAN? (Choose two.)

(True)Enter the command no shutdown.

A password must be set on the interface.

The interface DCE clock rate must be set.

The interface must be configured for virtual terminal access.

(True)The interface must be configured with an IP address and subnet mask.

The router must be put in setup mode in order for the interface to be configured

Which media types can be used in an implementation of a 10BASE-T network? (Choos

e three.)

Category 5 UTP (True)

Category 5e UTP (True)

Category 3 UTP (True)

coaxial cable

multi-mode fiber

single mode fiber

If 4 bits are borrowed from the host field of a Class C address to create subnet

s, what will the range of usable host addresses be in the last subnet?

.224 to .239

.225 to .239

.225 to .254

.241 to .254

.241 to .255

(True).240 to .255

Which of the following describe how a device on a LAN builds a table of MAC addr

esses? (Choose two.)

(True)by monitoring the traffic that occurs on the local network segment

via FTP from the nearest router

by sending a request to the nearest domain name server

(True)by broadcasting an ARP request

Which of the following best describes how the Gigabit Ethernet, Media Access Con

trol method views the link?

ring

shared bus

point-to-point (True)

star

extended star

What is the purpose of Positive Acknowledgment and Retransmission (PAR)?

PAR allows the presentation layer to request that data be resent in a format the

destination host can process.

PAR provides a mechanism for the receiving device to request that all segments b

e retransmitted if one segment is corrupt.

(True)PAR helps ensure that a number of data segments sent by one host are received b

y another host before additional data segments are sent.

PAR is used to renegotiate the window size during the synchronization process.

Which criteria identify a Class B address? (Choose two.)

decimal number in first octet between 127-191

decimal number in first octect between 128-192

(True)decimal number in first octect between 128-191

first bit of binary IP address is 0

(True)first two bits of binary IP address are 10

first three bits of IP binary address are 110

An administrator has made routing protocol changes to a router's configuration.

To ensure that the changes are implemented, the active configuration is saved an

d the router is reloaded. After the router has initialized, the output on the sc

reen displays "Would you like to enter the initial configuration dialog?[yes/no]

:" Why did this dialog appear?

There was a POST failure.

The incorrect IOS loaded.

There was an error in the startup configuration file.

(True)The configuration register was set to ignore NVRAM.

What operations are performed during router initialization? (Choose three.)

(True)The IOS is loaded into RAM.

(True)The generic bootstrap loader tests all interfaces.

All directly connected network devices are identified.

(True)A valid configuration file is loaded from NVRAM if specified by the configurati

on register.

A question driven setup menu is presented if a valid configuration file cannot b

e loaded.

For a network manager planning the installation of a new network, which of the f

ollowing will be needed to implement a typical 10BASE-T network installation? (C

hoose three.)

RJ-11

BNC connectors

RJ-48 patch cables

RJ-45 connectors (True)

Category 5 UTP cables (True)

hubs or switches (True)

A company with a Class B license needs to have a minimum of 1,000 subnets with e

ach subnet capable of accommodating 50 hosts. Which mask below is the appropriat

e one?

255.255.0.0

255.255.240.0

255.255.255.0

(True)255.255.255.192

255.255.255.224

A network administrator can establish a remote session to a host using the Route

r> telnet 192.168.1.1 command but is unsuccessful when using the Router> telnet

Boston command to connect to the same interface. Which of the following could be

the problem? (Choose two.)

(True)The ip host table on the router is not configured.

The command telnet Boston was issued from the wrong router prompt.

The routing table is missing.

(True)Domain name services are not available.

Which of the following network components would be considered Layer 1 devices? (

Choose three.)

(True)hub

router

bridge

switch

(True)repeater

(True)transceiver

What is the maximum distance that 10BASE-T will transmit data before signal atte

nuation affects the data delivery?

(True)100 meters

185 meters

300 meters

500 meters

What is the result of executing the erase startup-config command?

It deletes the active configuration file from RAM.

(True)It deletes the backup configuration file in NVRAM.

It deletes the saved configuration file from ROM.

It deletes the saved configuration file from the C: drive.

Which of the following imposes boundaries on broadcast traffic?

Bridge

Repeater

(True)Router

Transceiver

Which utility shows the route a packet takes to reach its destination?

netstat

ping

Telnet

(True)traceroute

Which device is considered a multi-port bridge?

hub

router

(True)switch

gateway

transceiver

repeater

What organization developed the TCP/IP reference model?

Internet Engineering Task Force (IETF)

National Intstitute of Standards and Technology (NIST)

Department of the Navy (DoN)

Department of Defense (DoD) (True)

Massachusetts Institute of Technology (MIT)

Stanford University

25 Which of the following is true regarding CDP and the graphic shown?

CDP running on Router D will gather information about routers A, B, C, and E.

(True)By default, Router A will receive CDP advertisements from routers B and C.

If routers D and E are running different routing protocols, they will not exchan

ge CDP information.

Router E can use CDP to identify the IOS running on Router B.

How would an administrator configure a static route for use if a primary route f

ailed?

configure the route with a metric greater than the default value

configure the route and the router will activate it as needed

configure the route to activate by using the redistribute static command

(True)configure the route with an administrative distance greater than the default va

lue

Convert the Hexadecimal number A2 into its Base 10 equivalent. Select the correc

t answer from the list below.

156

158

160

(True)162

164

166

What happens on an Ethernet network after a collision occurs? (Choose three.)

(True)A backoff algorithm is invoked and transmission is stopped.

Devices involved in the collision have a random period of time for priority retr

ansmission of the damaged packet.

The devices involved in the collision release a token indicating the time each s

tation may begin retransmitting.

(True)The devices involved in the collision do not have priority to transmit data.

(True)The devices with data to transmit return to a listen-before-transmit mode.

Transmit work will restart with the reissuance of all data.

Which of the following types of networks pass a token sequentially to each host?

(Choose two.)

Ethernet

(True)Token Ring

(True)FDDI

Frame Relay

ISDN

What is the length of a MAC address?

8 bits

8 bytes

24 bits

24 bytes

(True)48 bits

48 bytes

31 Which of the following are TCP services? (Choose three.)

address resolution

(True)end-to-end communication

(True)flow control

(True)reliability of data delivery

path determination

data representation

Routers have different types of memory. Choose the answer that describes RAM.

(True)provides working storage

stores a fully functional IOS image

stores the startup configuration file

initializes the code used in router startup

Which command will display routing table information about all known networks an

d subnetworks?

Router# show ip interfaces

Router# show ip connections

(True)Router# show ip route

Router# show ip networks

Which of the following statements describe distance vector routing updates? (Cho

ose three.)

Topology changes are transmitted to all routers at once.

(True)Routers send their entire routing tables in distance vector updates.

(True)Path cost metrics for each route are included in the updates.

Periodic updates are sent directly to every router in the network.

(True)Routing updates are sent periodically to adjacent routers.

Routers send only the state of their own links in distance vector updates.

Which ICMP message type notifies source hosts that a receiving host or network i

s not available?

time exceeded

redirect

(True)destination unreachable

source quench

parameter problem

echo reply

How many total subnets are created by applying the subnet mask 255.255.252.0 to

a Class B network?

(True)64

252

255

1024

Which of the following conditions will cause a router using holddown timers to i

gnore an update?

an update from a different router with a better metric

an update from a different router with a poorer metric

an update from the same router with a better metric

(True)an update from the same router with a poorer metric

Which IP packet field will prevent endless loops?

type-of-service

identification

flags

(True)time-to-live

header checksum

Which of the following is a network type that is widely used in dialup networking?

shared media

(True)point-to-point

extended shared media

point-to-multipoint

When a network administrator applies the subnet mask 255.255.255.248 to a Class

A address, for any given subnet, how many IP addresses are available to be assig

ned to devices?

1022

510

254

126

(True)6

Cisco Discovery Protocol (CDP) operates at which OSI Layer?

physical layer

network layer

(True)data link layer

presentation layer

Which protocol can be used to load or retrieve Cisco IOS images to or from a rou

ter?

SNMP

(True)TFTP

UDP

TCP

Which of the following is a transport layer protocol of the TCP/IP model?

FTP

(True)UDP

TFTP

Which of the following is created with switched full-duplex transmission?

more collision domains

fewer collision domains

(True)no collision domains

no increase in broadcast domains

more broadcast domains

45 ??????

Which of the following IP addresses are broadcast addresses if the subnet mask i

s 255.255.255.240? (Choose three.)

(True)75.32.75.15

205.16.35.11

(True)199.254.129.111

(True)129.130.17.143

135.22.55.93

105.33.62.213

46 What type of routing uses information that is manually entered into the routi

ng table?

dynamic

interior

(True)static

standard

What is used to resolve known IP addresses to unknown MAC addresses?

(True)ARP

DNS

DHCP

RARP

Which of the following OSI layers offers reliable, connection-oriented data comm

unication services?

session

(True)transport

network

data link

Which of the following are benefits of creating a subnetwork structure in an IP

network? (Choose three.)

permits network address duplication

(True)allows for address flexibility

(True)prevents address replication

provides broadcast containment

(True)adds low-level security

allows for more network hosts available

How many IP addresses can be assigned to host devices on each subnet of a Class

B network with a subnet mask of 255.255.255.248?

(True)6

8190

After a Telnet session has been suspended, which actions will restart the sessio

n? (Choose two.)

(True)pressing Enter to restart the most recent session

(True)using the resume command followed by a session ID

typing the session ID followed by pressing Enter

using the resume command followed by the IP address

Which layer of the OSI model covers physical media?

(True)Layer 1

Layer 2

Layer 3

Layer 4

Layer 5

Layer 6

Which protocol is used by FTP to transfer files over the Internet?

(True)TCP

SMTP

UDP

SNMP

54 ???????????????

Which of the following factors should be considered when selecting a routing pro

tocol to be implemented in an enterprise network? (Choose three.)

(True)bandwidth consumption

(True)router memory requirements

router location

spanning tree size

(True)router processor capability

flow control capability

A ping 192.1.1.20 command is issued on workstation A to determine if workstation

B can be reached. What events will occur if this command is successful? (Choose

two.)

The router will block the ping request message.

The router will reply to the echo request with a proxy ping response.

Workstation A will send a UDP ping request message to workstation B.

Workstation B will send a UDP ping reply message to workstation A.

(True)Workstation A will send an ICMP echo request message to workstation B.

(True)Workstation B will send an ICMP echo reply message to workstation A.

Which mode will a router enter if it is unable to locate a valid startup configu

ration file during the boot process?

Boot mode

Config mode

(True)Setup mode

Startup mode

Which protocol of the TCP/IP model internet layer provides connectionless, best-

effort-delivery of datagrams?

ARP

ICMP

(True)IP

RARP

TCP

DNS

Which of the following does a router use to make a forwarding decision?

(True)destination IP address

MAC address

source IP address

encapsulation address

default gateway

Routers have different types of memory. Choose the answer that describes NVRAM.

provides working storage

stores a fully functional IOS image

(True)stores the startup configuration file

initializes the code that is used to boot the router

Which statement is correct concerning routing and routed protocols?

A routed protocol allows the routers to communicate with other routers and maint

ain tables for a routing protocol.

(True)A routing protocol allows routers to communicate with other routers and maintai

n tables for a routed protocol.

Routers only need to use routing protocols to work properly.

There is no difference between routed and routing protocols.

Learning-ccna.blogspot.com

CCNA: Semester 2 Chapter 3 (100%)

2009-08-03T10:15:00.000-07:00

1 Why is it important to create standards for network consistency? (Choose three.)

reduces network complexity *

increases unplanned downtime

limits unplanned downtime *

increases bandwidth by regulating networking performance

limits events that may impact network performance *

2 A telnet session can be established when using the IP address of a router but not the name of the router. Which of the following is the most likely cause of the problem?

an incorrect host table entry *

an incorrect ARP table entry

an incorrect routing table entry

an incorrect protocol configured

an incorrect subnet mask

The serial connection shown in the graphic needs to be configured. Which configuration commands must be made on the Sydney router to establish connectivity with the Melbourne site? (Choose three.)

Sydney(config-if)# ip address 201.100.53.2 255.255.255.0

Sydney(config-if)# no shutdown *

Sydney(config-if)# ip address 201.100.53.1 255.255.255.224 *

Sydney(config-if)# clock rate 56000 *

Sydney(config-if)# ip host Melbourne 201.100.53.2

4 Which commands display information about the IOS or configuration files stored in router memory? (Choose three.)

Router# show ram

Router# show flash *

Router# show hosts

Router# show history

Router# show version *

Router# show startup-config *

5 Select the interface descriptions that provide the most appropriate information. (Choose two.)

circuit number

host IP address *

telnet password *

number of hops between routers

purpose and location of the interface

6 Select the commands necessary to remove any existing configuration on a router. (Choose two.)

delete flash

erase startup-config *

erase running-config *

restart

reload

delete NVRAM

7 Router names are associated with IP addresses. What is the name of the table that is created by this association?

IP table

SAP table

ARP table

MAC table

HOST table *

RARP table

8 Select the commands that will store the current configuration file to a network TFTP server? (Choose two.)

Router# copy run tftp

Router# copy tftp run

Router# copy running-config tftp *

Router# copy tftp running-config *

Router(config)# copy running-config tftp

Router(config)# copy tftp running-config

9 Which statements are true regarding the recommended use of login banners? (Choose two.)

They should be used to display information regarding system changes or maintenance. *

They should be used to display warnings to unauthorized users. *

They should be used to display welcome messages prior to login.

They should be seen only by system administrators.

They should provide confirmation of incoming IP addresses.

10 What is the effect of the command ip host HQ 192.1.1.1?

permits a ping to 192.1.1.1 with the command ping HQ

assigns the description HQ to the interface with the ip address 192.1.1.1

renames the router as HQ

defines a static route to the host 192.1.1.1

configures the remote device HQ with the ip address of 192.1.1.1 *

11 What are the default settings for a serial interface? (Choose three.)

DTE *

DCE

shutdown *

no IP address *

clock rate 56000

encapsulation ARPA

12 What will be the response from the router after the command, "router(config)# hostname portsmouth" is entered?

portsmouth#

portsmouth(config)# *

invalid input detected

router(config-host)#

hostname = portsmouth

portsmouth#

? command not recognized

router(config)#

13 A network administrator wants to assure that any password that permits access to the privileged EXEC mode is not shown in plain text in the configuration files. Which commands will accomplish this task? (Choose two.)

Router(config)#enable cisco secret

Router(config)#enable cisco

Router(config)#service password-encryption *

Router(config)#enable secret cisco *

Router(config)#encrypt-all cisco

Router(config)#service encryption-password

14 Which command sequence will permit access to all five router virtual terminal lines with a password of cisco?

Router(config-line)#config telnet

Router(config-line)# line vty 0 5

Router(config-line)# password cisco

Router(config)# line vty 0 4

Router(config)# password cisco

Router(config)# line vty 0 4*

Router(config-line)# password cisco

Router(config-line)# login

Router(config-line)# config telnet

Router(config-line)# password cisco

Router(config-line)# sessions 0 4

15 An IP network is to be added to a router Ethernet interface. What steps must be performed to configure this interface to allow connectivity to the hosts on this LAN? (Choose two.)

Enter the command no shutdown. *

A password must be set on the interface.

The interface DCE clock rate must be set.

The interface must be configured for virtual terminal access.

The interface must be configured with an IP address and subnet mask. *

The router must be put in setup mode in order for the interface to be configured.

16 What is the default state of the interfaces on a router?

up, line protocol down

down, line protocol down *

adminstratively down, line protocol down

up, line protocol up

17 Which are valid router prompts? (Choose three.)

Router(privileged)#

Router(config)# *

Router(command)#

Router(config-router)# *

Router(config-if)# *

Router(exec)#

18 Select the correct sequence of commands that will configure "Engineering LAN" as the interface description on the Ethernet0 interface.

1)Router# configure terminal

Router(config)# interface e0 description Engineering LAN

2)Router# configure terminal*

Router(config)# interface e0

Router(config-if)# description Engineering LAN

3)Router# configure terminal

Router(config)# interface e0

Router(config-if)# interface description Engineering LAN

4)Router# configure terminal

Router(config)# description Engineering LAN

19 Select the recommended locations to save a running-config file. (Choose three.)

all network hosts

network server *

floppy disk *

TFTP server *

server that is not on the network

20 Which command turns on a router interface?

Router(config-if)# enable

Router(config-if)# no down

Router(config-if)# s0 active

Router(config-if)# interface up

Router(config-if)# no shutdown *

21 Passwords can be used to restrict access to all or parts of the Cisco IOS. Select the modes and interfaces that can be protected with passwords. (Choose three.)

VTY interface *

console interface *

Ethernet interface

secret EXEC mode

privileged EXEC mode *

router configuration mode

22 What must be configured to establish a serial link between two routers that are directly connected?

a clock rate on the DTE interface

a no clock rate command on the DTE interface

no configuration is required

a clock rate on the DCE interface *

learning-ccna.blogspot.com

CCNA: Semester 2 Module 2

2009-08-03T10:10:00.000-07:00

Learning-ccna.blogspot.com

1 What information about the router and its startup process can be gathered from the output of the show version command? (Choose three.)

the last restart method (True)

the tftp software version installed

the amount of NVRAM and FLASH used

the configuration register settings (True)

the location used for loading the IOS (True)

2 What baud rate needs to be configured on terminal emulation software to allow a connection to the console port of a router?

2400

4800

9600 (True)

14200

38400

3 Which command takes precedence if the commands enable password and enable secret are both configured on a router?

enable password

enable secret (True)

Neither. They are both enabled.

Neither. They cancel each other out.

4 The active IOS of the router is initialized from FLASH. In this scenario, what commands would be used to display the name of the active IOS? (Choose two.)

Router#show IOS

Router#show flash (True)

Router#show nvram

Router#show version (True)

Router#show startup-config

Router#show running-config

5 Which keystroke is used to move to the beginning of a command line?

Ctrl-A (True)

Ctrl-B

Esc-A

Esc-B

Ctrl-C

Ctrl-Z

6 What is the maximum number of commands allowed in the history buffer?

128

255

256 (True)

7 Which tasks can be performed in the ROM monitor mode? (Choose two.)

recover from system failures (True)

create startup configuration files

recover from lost passwords (True)

configure IP addresses on all router interfaces

perform high level diagnostics

8 What is the default sequence for loading the IOS?

NVRAM, TFTP, FLASH

NVRAM, TFTP, CONSOLE

FLASH, ROM, TFTP

FLASH, TFTP, ROM (True)

TFTP, FLASH, ROM

Which of the following identifies the correct items needed to initially configure a router?

1) DB-9-to-RJ-45 on the PC's serial port

2) a straight through cable

3) the router's console port

1) PC's Ethernet port

2) a crossover cable

3) the router's Ethernet port

1) DB-9-to-RJ-45 on the PC's serial port

2) a rollover cable

3) the router's Ethernet port

1) PC's Ethernet port

2) a rollover cable

3) the router's console port

1) DB-9-to-RJ-45 on the PC's serial port (True)

2) a rollover cable

3) the router's console port

1) PC's Ethernet port

2) a rollover cable

3) the router's Ethernet port

10 When the router output is being viewed through a terminal program, which statements are true regarding the --More-- prompt at the bottom of the router display? (Choose two.)

Press the Spacebar to display the next line.

Press the Spacebar to view the next screen. (True)

Press the PgDn key to view the next screen.

Press the Enter key to display the next line. (True)

Press the Enter key to view the next screen.

11 Which connection method can be used to perform the initial configuration of a router?

use a serial connection of a computer connected to the console port of a router (True)

telnet to the router through a serial port

use a vty port through the Ethernet interface

use a modem connected to the AUX port of the router

12 What information does the name of the IOS file provide to the network administrator? (Choose three.)

the amount of NVRAM required to run the image

the hardware platform the image runs on (True)

the various software platforms the image can run on

special features and capabilities of the image (True)

the bandwidth supported by the IOS

where the image executes from and if it has been compressed (True)

13 Under what conditions does the router enter setup mode? (Choose three.)

immediately after issuing the command Router#erase start

after issuing the command Router#setup (True)

during the initial configuration of a router (True)

after deleting the backup configuration and reloading the router (True)

after deleting the running configuration

14 What does the command sh? return as output if issued at the Router# prompt?

all show commands allowed in privileged mode

all commands beginning with the letters sh (True)

an incomplete command error message

an invalid command error message

15 Cisco IOS software is separated into two levels as a security feature. What are those two levels? (Choose two.)

global

privileged (True)

local

user (True)

interface

16 Which keystrokes can be used to return to the privileged mode from the interface configuration mode?

Ctrl-P

Ctrl-Shift-6, then X

Ctrl-Z (True)

Esc

17 Which of the following is the correct flow of routines for a router startup?

load bootstrap, load IOS, apply configuration (True)

load bootstrap, apply configuration, load IOS

load IOS, load bootstrap, apply configuration, check hardware

check hardware, apply configuration, load bootstrap, load IOS

18 Which of the following statements concerning router interface modes are correct? (Choose three.)

User EXEC mode provides commands to monitor router operation. (True)

Privileged EXEC mode only provides commands to change or configure router operation.

Password protected configuration modes can be accessed from either user EXEC or privileged EXEC modes.

On a router with the name Core1, the prompt indicating privileged EXEC mode is Core1#. (True)

The command to enter privileged EXEC mode is Router# enable.

A username and password may be required to enter privileged EXEC mode. (True)

19 A network administrator needs to configure a router. Which of the following connection methods requires network functionality to be accessible?

console

AUX

Telnet (True)

modem

20 What is the default sequence for loading the configuration file?

NVRAM, FLASH, ROM

FLASH, TFTP,CONSOLE

NVRAM, TFTP, CONSOLE (True)

FLASH, TFTP, ROM

21 Which tasks can be accomplished by using the command history feature? (Choose two.)

View a list of commands entered in a previous session.

Recall up to 15 command lines by default.

Set the command history buffer size. (True)

Recall previously entered commands. (True)

Save command lines in a log file for future reference.

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