ccna

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

(QoS) quality of service

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

(config)#servicepassword-encryption

byte

8 bits

which statement describes the use of powerline networking technology

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

megabyte

Approximately 1 million bytes

terabyte

Approximately 1 trillion bytes.

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

BYOD Bring your own device

which three application layer protocols are part of the TCP/IP protocol suite? (choose three)

DCHP DNS FTP

What are three characteristics of an SVI

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.

what is a characteristic of the LLC sublayer?

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

gigabyte

approx. 1 billion bytes

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?

bring your own device

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

client/server

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

cloud

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

data link layer

what is contained in the trailer in the trailer of a data-link frame?

error detection

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

flow control

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?

security

Which name is assigned to the transport layer PDU?

segment

Kilobyte

Approximately 1,000 bytes.

match the situation with the appropriate use of network media

COPPER CABLES horizontal cabling structure desktop PCs in an enterprise office FIBER OPTIC long-haul networks backbone cabling in an enterprise WIRELESS guest access in a coffee shop waiting rooms in a hospital

characteristics and their corresponding intranet connectivity type

DSL- high bandwidth connection that runs over telephone line. DIAL UP TELEPHONE- typically has a very low bandwidth SATELLITE- not suited for heavily wooded areas CABLES- uses coaxial cable as a medium

what process involves placing one PDU inside of another PDU?

Encapsulation

match the description to the organization (not all options are used)

ISOC- this organization promotes the open development, evolution and the use of the internet throughout the world. ISO-this organization is the largest developer of the international standards in the world for a wide variety of products and services. it is known for its Open Systems Interconnection (OSI) reference model EIA-option not used IANA-this organization is responsible for overseeing and managing IP address allocation, domain name management and protocol indentifiers

what function does pressing the tab key have when entering a command in IOS?

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

Which statement describes the physical topology of to the LAN?

It defines how hosts and network devices connect to the LAN

what is an ISP?

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

what are two characteristics of fiber-optic cable

It is not affected by EMI or RFI. It is more expensive than UTP cabling is.

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

RM-3 Switch-2A4 SwBranch799

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

SOHO network

How is SSH different from Telnet?

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

A technician configures a switch with these commands: SwitchA(config)# interface vlan 1 SwitchA(config-if)# ip address 192.168.1.1 255.255.255.0 SwitchA(config-if)# no shutdown What is the technician configuring?

SVI

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?

Subnet mask

match the definitions of their respective CLI hot keys and shortcuts (not all options used)

TAB completes abbreviated commands and parameters SPACE BAR scrolls backwards through previously entered commands CTRL-C option not used ? provides context sensitive help CTRL-SHIFT-6 aborts commands such as trace and ping

What two characteristics describe an FTP connection? (choose two)

The first connection established is for traffic control and the second connection is created to transfer a file. Files can be downloaded from or uploaded to the server

what is a characteristic of multicast messages?

They are sent to a select group of hosts.

an administrator is configuring a switch console port with a password. in what order will the administrator travel through IOS modes of operation in order to reach the mode in which the configuration commands will be entered?

USER EXEC MODE PRIVILEGED EXEC MODE LINE CONFIGURATION MODE GLOBAL CONFIGURATION MODE

match the description to the associated IOS mode

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 CONFIGURATION MODE changes made affect the operation of the device as a whole accessed by entering the configuration terminal command

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 interfaca console interface privileged exec mode

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

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

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

a keyword

bit

a one or a zero

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

a router

what type of communication rule would best describe CSMA/CD?

access method

which statement is true about the CSMA/CD access method that is used in ethernet?

all network devices must listen before transmitting

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?

an intranet

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

application layer

which two devices commonly affect wireless networks? (choose two)

cordless phones microwaves

what is the primary role of the physical layer in transmitting data on the network?

create signals that represent the bits in each frame on to the media

In addition to the cable length, what two factors could interfere with the communication carried over UTP cables? (Choose two.)

crosstalk electromagnetic interference

which statement describes an extended star topology?

end devices connect to a central intermediate device, which in turn connects to other central intermediate devices

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?

ethernet IP TCP HTTP

what are three ways that media access control is used in networking?

ethernet utilizes CSMA/CD Media access control provides placement of data frames onto the media data link layer protocols define the rules for access to different media

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

exit

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

extranet

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

extranet

With the use of unshielded twisted-pair copper wire in a network, what causes crosstalk within the cable pairs?

fiber

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

fire optic cable

Which PDU format is used when bits are received from the network medium by the NIC of a host?

frame

which two fields or features does the Ethernet examine to determine if a received frame is passed to the data link layer or discarded by the NIC? (Choose two)

frame check sequence minimum frame size

which media communication type does not require media arbitration in the data link layer?

full-duplex

which three basic types are common to all frame types supported by the data link layer?

header data trailer

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

implementing a firewall installing antivirus software

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

intermediary device

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

internet

what term describes a private collection of LANS and WANS that belongs to an organization

intranet

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?

issue the reload command without saving the running configuration

which two statements describe the services provided by the data link layer (choose two)

it manages the access of frames to the network media it packages various layer 3 PDUs into frame format that is compatible with the network interference.

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

network layer

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

network layer

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?

partial mesh

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

peer-to-peer

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

powerline networking

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

response timeout

which two devices are intermediary devices? (choose two)

router switch

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

segments are sent from the transport layer to the internet layer

A Layer 2 switch is used to switch incoming frames from a 1000BASE-T port to a port connected to a 100Base-T network. Which method of memory buffering would work best for this task?

shared memory buffering

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

show ip interface brief

what three items are contained in an ethernet header and trailer? (Choose three)

source MAC address destination MAC address error checking information

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

spyware

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 throughout appears lower than the bandwidth expected. Which three factors could influence the differences in throughput? (choose three)

the amount of traffic that is currently crossing the network 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

What is the auto-MDIX feature on a switch?

the automatic configuration of an interface for a straight-through or a crossover Ethernet cable connection

What are two characteristics of RAM on a cisco device?

the configuration that is actively running on the device is stored in RAM the contents of RAM are lost during a power cycle

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

the distance the selected medium can successfully carry a signal the environment where the selected medium is to be installed

which characteristic describes crosstalk

the distortion of the transmitted messages from signals carried in adjacent wires

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?

the new configuration will be loaded if the switch is restarted

During the encapsulation process, what occurs at the data link layer for a PC connected to an Ethernet network?

the physical address is added

Which interface allows remote management of a Layer 2 switch?

the switch virtual interface

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?

the telnet formatted data is provided to the next layer the TCP header is added the IP header is added the ethernet header is added

Why are two strands of fiber used for a single fiber optic connection?

they allow for full duplex connectivity

which statement is correct about network protocols?

they define how messages are exchanged between the source and the destination

which statement describes a characteristic of the frame header fields of the data link layer?

they vary depending on protocols

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

this command prevents someone from viewing the running configuration passwords

Why would a Layer 2 switch need an IP address?

to enable the switch to be managed remotely

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?

to interrupt the ping process

what is the function of the CRC value that is found in the FCS field of a frame?

to verify the integrity of the received frame

what is the purpose of the OSI physical layer?

transmitting bits across the local media

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

transport layer

which procedure is used to reduce the effect of crosstalk in copper cables?

twisting opposing circuit wire pairs together

What type of network traffic requires QoS?

video conferencing