CCNA 1 v7.0 Final Exam - Introduction to Networks

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

(config)# service password-encryption

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.

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? (Choose two.)

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

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.

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

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

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

They allow for full-duplex connectivity.

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

They vary depending on protocols.

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

a keyword

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

a router

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

application layer

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 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

Which name is assigned to the transport layer PDU?

segment

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?

spyware

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 type of network traffic requires QoS?

video conferencing

Refer to the exhibit. What is the destination MAC address of the Ethernet frame as it leaves the web server if the final destination is PC1?

00-60-2F-3A-07-CC

Open the PT Activity. Perform the tasks in the activity instructions and then answer the question. What is the IP address of the switch virtual interface (SVI) on Switch0?

192.168.5.10

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.

Which statement describes the use of power-line networking technology?

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

Which statement is true about the CSMA/CD access method that is used in Ethernet?

All network devices must listen before transmitting.

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

BYOD

What three application layer protocols are part of the TCP/IP protocol suite? (Choose three.)

DHCP DNS FTP

Which statement describes an extended star topology?

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

What are three ways that media access control is used in networking? (Choose three.)

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.

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

Which two fields or features does 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

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.

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

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.

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 a frame format that is compatible with the network interface.

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

RM-3-Switch-2A4 SwBranch799

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

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: What is the technician configuring?

SVI

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.

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.)

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

Refer 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?

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

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.

What is a characteristic of multicast messages?

They are sent to a select group of hosts.

Which statement is correct about network protocols?

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

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

This command prevents someone from viewing the running configuration passwords.

Refer to the graphic. What type of cabling is shown?

UTP

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 privileged EXEC mode

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

access method

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

Which two devices commonly affect wireless networks? (Choose two.)

cordless phones microwaves

What is a primary role of the Physical layer in transmitting data on the network?

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

data link physical

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

data link layer

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

data link layer

What process involves placing one PDU inside of another PDU?

encapsulation

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

error detection

Which command 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 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 suppliers, customers and collaborators?

extranet

Refer to the graphic. What type of cabling is shown?

fiber

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

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

frame

Which advantage does the store-and-forward switching method have compared with the cut-through switching method?

frame error checking

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

full-duplex

Which three basic parts are common to all frame types supported by the data link layer? (Choose three.)

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

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

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?

lineconin

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

network layer

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

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

power-line networking

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

quality of service

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

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

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 the 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

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

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 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 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

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

the magnetic field around the adjacent pairs of wire

Which interface allows remote management of a Layer 2 switch?

the switch virtual interface

Why would a Layer 2 switch need an IP address?

to enable the switch to be managed remotely

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 a PDU during the encapsulation process?

transport layer

At which OSI layer is a source port number added to a 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