CCNA test 1 de lulu

Question 1

A network technician suspects that a particular network connection between two Cisco switches is having a duplex mismatch. Which command would the technician use to see the Layer 1 and Layer 2 details of a switch port?

Show interfaces

Show running-config

Show interface brief

Show mac-address-table

Question 2

Where are Cisco IOS debug output messages sent by default?

Memory buffers

Vty lines

Syslog server

Console line

Question 3

Which command can an administrator issue on a Cisco router to send debug messages to the vty lines?

Terminal monitor

Logging console

Logging buffered

Logging synchronous

Question 4

What is one indication that a Windows computer did not receive an IPv4 address from aDHCP server?

The computer cannot ping 127.0.0.1.

Windows displays a DHCP timeout message.

The computer receives an IP address that starts with 169.254

The computer cannot ping other devices on the same network with IP addresses in the 169.254.0.0/16 range

Question 5

What source IP address does a router use by default when the traceroute command is issued?

The highest configured IP address on the router

A loopback IP address

The IP address of the outbound interface

The lowest configured IP address on the router

Question 6

A user is unable to reach the web site when typing http://www.cisco.com in a web browser, but canreach the same site by typing http://72.163.4.161. What is the issue?

Default gateway

DHCP

DNS

TCP/IP protocol stack

Question 7

What is a characteristic of a fault tolerant network?

A network that protects confidential information from unauthorized access

A network that can expand quickly to support new users and applications without impacting the performance of the service delivered to existing users

A network that supports a mechanism for managing congestion and ensuring reliable delivery of content to all users

A network that recovers quickly when a failure occurs and depends on redundancy tolimit the impact of a failure

Question 8

Three bank employees are using the corporate network. The first employee uses a web browser to view a company web page in order to read some announcements. The second employee accesses the corporate database to perform some financia

Audio conference, financial transactions, web page

Financial transactions, web page, audio conference

Audio conference, web page, financial transaction

Financial transactions, audio conference, web page

Question 9

What is a benefit of using cloud computing in networking?

End users have the freedom to use personal tools to access information and communicate across a business network.

Network capabilities are extended without requiring investment in new infrastructure, personnel, or software.

Technology is integrated into every-day appliances allowing them to interconnect with other devices, making them more ‘smart’ or automated.

Home networking uses existing electrical wiring to connect devices to the network wherever there is an electrical outlet, saving the costof installing data cables.

Question 10

What is the function of the shell in an OS?

It interacts with the device hardware.

It interfaces between the users and the kernel

It provides dedicated firewall services.

It provides the intrusion protection services for the device.

Question 11

Which connection provides a secure CLI session with encryption to a Cisco switch?

A console connection

An AUX connection

A Telnet connection

An SSH connection

Question 12

A network technician is attempting to configure an interface by entering the following command: SanJose(config)# ip address 192.168.2.1 255.255.255.0. The command is rejected by the device. What is the reason for

The command is being entered from the wrong mode of operation.

The command syntax is wrong.

The subnet mask information is incorrect.

The interface is shutdown and must be enabled before the switch will accept the IP address.

Question 13

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

To restart the ping process

To interrupt the ping process

To exit to a different configuration mode

To allow the user to complete the command

Question 14

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?

Letmein

Secretin

Lineconin

Linevtyin

Question 15

On which switch interface would an administrator configure an IP address so that the switch can be managed remotely?

FastEthernet0/1

VLAN 1

Vty 0

Console 0

Question 16

What protocol is responsible for controlling the size of segments and the rate at which segments areexchanged between a web client and a web server?

TCP

HTTP

Ethernet

Question 17

What is an advantage to using a protocol that is defined by an open standard?

A company can monopolize the market.

The protocol can only be run on equipment from a specific vendor.

An open standard protocolis not controlled or regulated by standards organizations

It encourages competition and promotes choices.

Question 18

What are two benefits of using a layered network model? (Choose two.)

It assists in protocol design.

It speeds up packet delivery.

It prevents designers from creating their own model

It prevents technology in one layer from affecting other layers.

It ensures a device at one layer can function at the next higher layer.

Question 19

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

Data link

Network

Physical

Session

Transport

Question 20

Which name is assigned to the transport layer PDU?

Bits

Data

Frame

Packet

Segment

Question 21

A network administrator is troubleshooting connectivity issues on a server. Using a tester, the administrator notices that the signals generated by the server NIC are distorted and not usable. In which layer of the OSI model is the error c

Presentation layer

Network layer

Physical layer

Data link layer

Question 22

A network administrator is measuring the transfer of bits across the company backbone for a mission critical financial application. The administrator notices that the network throughput appears lower than the bandwidth expected. Which three factors

The amount of traffic that is currently crossing the network

The sophistication of the encapsulation method applied to the data

The type of traffic that is crossing the network

The latency that is created by the number of network devices that the data is crossing

The bandwidth of the WAN connection to the Internet

The reliability of the gigabit Ethernet infrastructure of the backbo

Question 23

What is a characteristic of UTP cabling?

Cancellation

Cladding

Immunity to electrical hazards

Woven copper braid or metallic foil

Question 24

What are two characteristics of fiber-optic cable? (Choose two.)

It is not affected by EMI or RFI.

Each pair of cables is wrapped in metallic foil.

It combines the technique of cancellation, shielding, and twisting to protect data.

It typically contains 4 pairs of fiber-optic wires

It is more expensive than UTP cabling is.

Question 25

What is a characteristic of the LLC sublayer?

It provides the logical addressing required that identifies the device.

It provides delimitation of data according to thephysical signaling requirements of the medium.

It places information in the frame allowing multiple Layer 3 protocols to use the same networkinterface and media.

It defines software processes that provide services to the physical layer.

Question 26

A network team is comparing physical WAN topologies for connecting remote sites to a headquarters building. Which topology provides high availability and connects some, but not all, remote sites?

Mesh

Partial mesh

Hub and spoke

Point-to-point

Question 27

What method is used to manage contention-based access on a wireless network?

CSMA/CD

Priority ordering

CSMA/CA

Token passing

Question 28

What are the three primary functions provided by Layer 2 data encapsulation? (Choose three.)

Error correction through a collision detection method

Session control using port numbers

Data link layer addressing

Placement and removal of frames from the media

Detection of errors through CRC calculations

Delimiting groups of bits into frames

Conversion of bits into data signals

Question 29

What will a host on an Ethernet network do if it receives a frame with a destination MAC address that does not match its own MAC address?

It will discard the frame.

It will forward the frame to the next host.

It will remove the frame from the media.

It will strip off the data-link frame to check the destination IP address.

Question 30

Which frame forwarding method receives the entire frame and performs a CRC check to detect errors before forwarding the frame?

Cut-through switching

Store-and-forward switching

Fragment-free switching

Fast-forward switching

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