Modules 1-4

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

(config)# service password-encryption

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

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 powerline 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

This organization promotes the open development, evolution and use of the internet throughout the world.

EIA IANA

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

Scalability

Expand the network without degrading the service to existing users. Ensure that streaming data is provided over high speed links.

The IP header is added.

First

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?

First mode - Global configuration mode Second mode - Line configuration mode Third mode - Privileged EXEC mode Final mode - User EXEC mode, Interface configuration mode

The Telnet-formatted data is provided to the next layer.

Fourth

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

Cable

High bandwidth connection that runs over telephone lines. Typically uses a T1/E1 or T3/E3 circuit.

This organization is responsible for overseeing and managing IP address allocation, domain name management and protocol identifiers.

ISO

This organization is the largest developer of international standards in the world for a wide variety of products and services. It is known for its Open Systems Interconnection (OSI) reference model.

ISOC

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 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 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 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.

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.

Security

Match the type of communication with a specific priority.

DSL

Not suited for heavily wooded areas.

Fault Tolerance

Protect the network from unauthorized access. Provide redundant links and devices.

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 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 1SwitchA(config-if)# ip address 192.168.1.1 255.255.255.0SwitchA(config-if)# no shutdownWhat is the technician configuring?

SVI

The TCP header is added.

Second

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.

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.

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.

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

They vary depending on protocols.

The Ethernet header is added.

Third

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.

Satellite

Typically has very low bandwidth.

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

UTP

Dialup Telephone

Uses coaxial cable as a medium.

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

n 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

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

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

application layer

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 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

At which OSI layer is a destination 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 switching method has the lowest level of latency?

fast-forward

What are two examples of the cut-through switching method? (Choose two.)

fast-forward switching fragment-free switching

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 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

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.

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 network where one computer can be both client and server?

peer-to-peer

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

physical data link

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

powerline 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

Which name is assigned to the transport layer PDU?

segment

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

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

store-and-forward switching

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.

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

What is the purpose of the FCS field in a frame?

to determine if errors occurred in the transmission and reception

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

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

transport layer

What type of network traffic requires QoS?

video conferencing