preguntas con ejemplos Flashcards

1
Q

An employee at a branch office is creating a quote for a customer. In order to do this, the employee needs to access confidential pricing information from internal servers at the Head Office. What type of network would the employee access?

A

an intranet

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2
Q

¿Cuáles son los dos criterios que se utilizan para seleccionar un medio de red entre varios medios de red? (Elija dos opciones).

A

La distancia que el medio seleccionado puede transportar una señal correctamente.
Y
El entorno en el que se debe instalar el medio seleccionado

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3
Q

Un usuario está implementando una política de seguridad en una red de oficina pequeña. ¿Cuáles son las dos acciones que proporcionarían los requisitos mínimos de seguridad para esta red? Elija dos opciones.

A

La implementación de un firewall y La instalación de un software antivirus

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4
Q

¿Cuál de estas interfaces permite la administración remota de un switch de capa 2?

A

La interfaz virtual del switch

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5
Q

¿Qué función tiene la tecla de tabulación al introducir un comando en IOS?

A

Completa el resto de una palabra escrita parcialmente en un comando.

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6
Q

Consulte la ilustración. Un administrador de redes está configurando el control de acceso al switch SW1. Si el administrador utiliza una conexión de consola para conectarse al switch, ¿cuál de las siguientes contraseñas se necesita para acceder al modo EXEC del usuario?

A

lineconin

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7
Q

Un técnico configura un switch con los siguientes comandos:

A

SVI

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8
Q

Cuáles de las siguientes son dos características de la RAM en un dispositivo Cisco? Elija dos opciones.

A

El contenido de la RAM se pierde al apagar y volver a encender el dispositivo.
Y
La configuración que está activamente en ejecución en el dispositivo se almacena en la RAM.

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9
Q

¿Cuáles son los dos nombres de host que cumplen las pautas de convenciones de nomenclatura en dispositivos con Cisco IOS? Elija dos opciones.

A

SwBranch799 y RM-3-Switch-2A4

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10
Q

¿Cuáles de las siguientes son tres características de una SVI? Elija tres opciones.

A

Proporciona una forma de administrar un switch de manera remota.

No está asociada a ninguna interfaz física en un switch.

Está asociada con la VLAN 1 de manera predeterminada.

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11
Q

Una la descripción con el modo de IOS relacionado. (No se utilizan todas las opciones).

A

Modo exec del usuario—————-
(la cantidad de comandos de contros básicos es limitada| es la primera entrada a la CLI de un dispositivo IOS).
modo exec privilegiado———————–
(se accede mediante la introduccion del comando enable|se identifica con una petición de entrada que termina con el carácter #)

modo de conf global————————
(los cambios que se realizan afectan el funcionamiento global del dispositivo|se accede mediante la introduccion del comadno config term)

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12
Q

During a routine inspection, a technician discovered that software that was installed on a computer was secretly collecting data about websites that were visited by users of the computer. Which type of threat is affecting this computer?

A

spyware

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13
Q

Which term refers to a network that provides secure access to the corporate offices by suppliers, customers and collaborators?

A

extranet

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14
Q

A large corporation has modified its network to allow users to access network resources from their personal laptops and smart phones. Which networking trend does this describe?

A

bring your own device

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15
Q

What is an ISP?

internet service provider

A

It is an organization that enables individuals and businesses to connect to the Internet.

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16
Q

Match the requirements of a reliable network with the supporting network architecture. (Not all options are used.)

A

falut tolerance—-provide redundant links and devices.
scalability—-expand the network without degrading the service for existing users.
security——protect the network from unauthorized access.

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17
Q

Which statement describes the use of powerline networking technology?

A

A device connects to an existing home LAN using an adapter and an existing electrical outlet.

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18
Q

A networking technician is working on the wireless network at a medical clinic. The technician accidentally sets up the wireless network so that patients can see the medical records data of other patients. Which of the four network characteristics has been violated in this situation?

A

security

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19
Q

Match each characteristic to its corresponding Internet connectivity type. (Not all options are used.)

A

DSL (Digital Subscriber Line): high bandwidth connection that returns over telephone line.

Dialup telephone: tupically has very low bandwidth.

satellite: not suited for heavily wooded areas.

cable: uses coaxial cable as medium.

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20
Q

What two criteria are used to help select a network medium from various network media? (Choose two.)

A

the distance the selected medium can successfully carry a signal

the environment where the selected medium is to be installed

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21
Q

What type of network traffic requires QoS (quality of service)?

A

video conferencing

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22
Q

A user is implementing security on a small office network. Which two actions would provide the minimum security requirements for this network? (Choose two.)

A

implementing a firewall

installing antivirus software

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23
Q

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.)

A

VTY interface

console interface

privileged EXEC mode

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24
Q

Which interface allows remote management of a Layer 2 switch?

A

the switch virtual interface

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25
Q

What function does pressing the Tab key have when entering a command in IOS?

A

It completes the remainder of a partially typed word in a command.

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26
Q

While trying to solve a network issue, a technician made multiple changes to the current router configuration file. The changes did not solve the problem and were not saved. What action can the technician take to discard the changes and work with the file in NVRAM?

A

Issue the reload command without saving the running configuration.

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27
Q

An administrator uses the Ctrl-Shift-6 key combination on a switch after issuing the ping command. What is the purpose of using these keystrokes?

A

to interrupt the ping process

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28
Q

Refer to the exhibit. A network administrator is configuring access control to switch SW1. If the administrator uses a console connection to connect to the switch, which password is needed to access user EXEC mode?

A

lineconin

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29
Q

A technician configures a switch with these commands:

A

SVI

switch virtual interface

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30
Q

Which command or key combination allows a user to return to the previous level in the command hierarchy?

A

exit

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31
Q

What are two characteristics of RAM on a Cisco device? (Choose two.)

A

The configuration that is actively running on the device is stored in RAM.

The contents of RAM are lost during a power cycle.

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32
Q

Which two host names follow the guidelines for naming conventions on Cisco IOS devices? (Choose two.)

A

RM-3-Switch-2A4

SwBranch799

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33
Q

How is SSH different from Telnet?

secure shell

A

SSH provides security to remote sessions by encrypting messages and using user authentication. Telnet is considered insecure and sends messages in plaintext.

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34
Q

An administrator is configuring a switch console port with a password. In what order will the administrator travel through the IOS modes of operation in order to reach the mode in which the configuration commands will be entered? (Not all options are used.)

A

first mode: user exec mode

2nd mode: privileged exec mode

3thd mode: global config mode

4th mode: line config mode

35
Q

What are three characteristics of an SVI? (Choose three.)

A

It is not associated with any physical interface on a switch.

It provides a means to remotely manage a switch.

It is associated with VLAN1 by default.

36
Q

What command is used to verify the condition of the switch interfaces, including the status of the interfaces and a configured IP address?

A

show ip interface brief

37
Q

Match the description with the associated IOS mode. (Not all options are used.)

A

user exec mode
-limited number of basic monitoring commands

-the first entrance into the CLI of an IOS device

privileged exec mode
-accessed by entering the enable command

  • identified by a prompt ending with the #character

global config mode
-changes made effect the operation of the device as a whole

-accessed by entering the config term command

38
Q

Match the definitions to their respective CLI hot keys and shortcuts. (Not all options are used.)

A

tab: completes abbreviated commands and parameters

space bar: displays the next screen

up arrow: scrolls backwards through previously entered commands

?:provides context sensitive help

ctrl-shift-6: aborts commands such as trace and ping

39
Q

In the show running-config command, which part of the syntax is represented by running-config ?

A

a keyword

40
Q

After making configuration changes on a Cisco switch, a network administrator issues a copy running-config startup-config command. What is the result of issuing this command?

A

The new configuration will be loaded if the switch is restarted.

41
Q

What command will prevent all unencrypted passwords from displaying in plain text in a configuration file?

A

(config)# service password-encryption

42
Q

A network administrator enters the service password-encryption command into the configuration mode of a router. What does this command accomplish?

A

This command prevents someone from viewing the running configuration passwords.

43
Q

What method can be used by two computers to ensure that packets are not dropped because too much data is being sent too quickly?

A

flow control

44
Q

Which statement accurately describes a TCP/IP encapsulation process when a PC is sending data to the network?

A

Segments are sent from the transport layer to the internet layer.

45
Q

What three application layer protocols are part of the TCP/IP protocol suite?

A

DHCP
DNS
FTP

46
Q

Match the description to the organization. (Not all options are used.)

A

ISOC: the organization promotes the open development, evolution, and use of the internet troughout the world

ISO: this organization is the largest developer of international standards in the world wide variety of products and services.

IANA: this organization is responsible for overseeing and managing Ip address allocation

47
Q

Which name is assigned to the transport layer PDU?

A

segment

48
Q

When IPv4 addressing is manually configured on a web server, which property of the IPv4 configuration identifies the network and host portion for an IPv4 address?

A

subnet mask

49
Q

What process involves placing one PDU inside of another PDU?

protocol data unit

A

encapsulation

50
Q

What layer is responsible for routing messages through an internetwork in the TCP/IP model?

A

internet

51
Q

restudy

For the TCP/IP protocol suite, what is the correct order of events when a Telnet message is being prepared to be sent over the network?

A

first: the telnet-formatted data is provided to the next layer.

2nd: the TCP header is added.

3thd: the ip header is added.

4th: the ethernet header is added

52
Q

resrudy

For the TCP/IP protocol suite, what is the correct order of events when a Telnet message is being prepared to be sent over the network?

A

frame

53
Q

Refer to the exhibit. ServerB is attempting to contact HostA. Which two statements correctly identify the addressing that ServerB will generate in the process? (Choose two.)

A

ServerB will generate a frame with the destination MAC address of RouterB.

ServerB will generate a packet with the destination IP address of HostA.

54
Q

Which method allows a computer to react accordingly when it requests data from a server and the server takes too long to respond?

A

response timeout

55
Q

A web client is receiving a response for a web page from a web server. From the perspective of the client, what is the correct order of the protocol stack that is used to decode the received transmission?

A

Ethernet, IP, TCP, HTTP

56
Q

restudy

Which two OSI model layers have the same functionality as a single layer of the TCP/IP model? (Choose two.)

A

data link

physical

57
Q

restudy

At which layer of the OSI model would a logical address be added during encapsulation?

A

network layer

58
Q

What is a characteristic of multicast messages?

A

They are sent to a select group of hosts.

59
Q

Which statement is correct about network protocols?

A

They define how messages are exchanged between the source and the destination.

60
Q

What is an advantage of network devices using open standard protocols?

A

A client host and a server running different operating systems can successfully exchange data.

61
Q

Which device performs the function of determining the path that messages should take through internetworks?

A

a router

62
Q

restudy

Open the PT Activity. Perform the tasks in the activity instructions and then answer the question

A

192.168.5.10

63
Q

Why would a Layer 2 switch need an IP address?

A

to enable the switch to be managed remotely

64
Q

efer to the exhibit. An administrator is trying to configure the switch but receives the error message that is displayed in the exhibit. What is the problem?

A

The administrator must first enter privileged EXEC mode before issuing the command.

65
Q

What term describes a network owned by one organization that provides safe and secure access to individuals who work for a different organization?

A

extranet

66
Q

What term describes storing personal files on servers over the internet to provide access anywhere, anytime, and on any device?

A

cloud

67
Q

What term describes a network where one computer can be both client and server?

A

peer-to-peer

68
Q

What term describes a type of network used by people who work from home or from a small remote office?

A

SOHO network

69
Q

What term describes a computing model where server software runs on dedicated computers?

A

client/server

70
Q

What term describes a technology that allows devices to connect to the LAN using an electrical outlet?

A

powerline networking

71
Q

What term describes a policy that allows network devices to manage the flow of data to give priority to voice and video?

A

quality of service

72
Q

What term describes a private collection of LANs and WANs that belongs to an organization?

A

intranet

73
Q

What term describes the ability to use personal devices across a business or campus network?

A

BYOD

bring your own device

74
Q

restudy

At which OSI layer is a source IP address added to a PDU during the encapsulation process?

A

network layer

75
Q

restudy

At which OSI layer is a destination port number added to a PDU during the encapsulation process?

A

transport layer

76
Q

restudy

At which OSI layer is data added to a PDU during the encapsulation process?

A

application layer

77
Q

restudy

At which OSI layer is a source IP address added to a PDU during the encapsulation process?

A

network layer

78
Q

Which of the following is the name for all computers connected to a network that participate directly in network communication?

A

host

79
Q

restudy

At which OSI layer is a destination IP address added to a PDU during the encapsulation process?

protocol data unit

A

network layer

80
Q

restudy

At which OSI layer is a source MAC address added to a PDU during the encapsulation process?

A

data link layer

81
Q

restudy

At which OSI layer is a source port number added to a PDU during the encapsulation process?

A

transport layer

82
Q

restudy

At which OSI layer is a destination MAC address added to a PDU during the encapsulation process?

A

data link layer

83
Q

When data is encoded as pulses of light, which media is being used to transmit the data?

A

Fire optic cable

84
Q

Which two devices are intermediary devices? (Choose two)

A

Router

Switch