Modules 1 – 3: Basic Network Connectivity and Communications Exam

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 Ethernet interface boot IOS mode privileged EXEC mode router configuration mode

VTY interface console interface privileged EXEC mode

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

a keyword

Which device performs the function of determining the path that messages should take through internetworks? a router a firewall a web server a DSL modem

a router

Privileged EXEC Mode

accessed by entering the enable command identified by a prompt ending with the # character

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 the Internet an extranet a local area network

an intranet

At which OSI layer is data added to a PDU during the encapsulation process? application layer data link layer network layer transport layer

application layer

Global Configuration Mode

changes made affect the operation of the device as a whole accessed by entering the configure terminal command

What term describes a computing model where server software runs on dedicated computers? client/server internet intranet extranet

client/server

What term describes storing personal files on servers over the internet to provide access anywhere, anytime, and on any device? cloud BYOD quality of service converged network

cloud

Which two OSI model layers have the same functionality as a single layer of the TCP/IP model? (Choose two.) data link network physical session transport

data link physical

At which OSI layer is a destination MAC address added to a PDU during the encapsulation process? data link layer transport layer application layer network layer

data link layer

At which OSI layer is a source MAC address added to a PDU during the encapsulation process? data link layer application layer transport layer presentation layer

data link layer

Which command or key combination allows a user to return to the previous level in the command hierarchy? end exit Ctrl-Z Ctrl-C

exit

scalability

expand the network without degrading the service for existing users

What term describes a network owned by one organization that provides safe and secure access to individuals who work for a different organization? extranet cloud BYOD quality of service

extranet

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

extranet

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

flow control

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

frame

DSL

high bandwidth connection that runs over telephone line

Which of the following is the name for all computers connected to a network that participate directly in network communication? Servers Intermediary device Host media

host

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 a wireless network installing antivirus software implementing an intrusion detection system adding a dedicated intrusion prevention device

implementing a firewall installing antivirus software

What term describes a private collection of LANs and WANs that belongs to an organization? intranet internet extranet peer-to-peer

intranet

User exec mode

limited number of basic monitoring commands the first entrance into the CLI of an IOS device

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

network

At which OSI layer is a source IP address added to a PDU during the encapsulation process? network layer data link layer application layer presentation layer

network layer

At which OSI layer is a source IP address added to a PDU during the encapsulation process? network layer data link layer transport layer application layer

network layer

At which layer of the OSI model would a logical address be added during encapsulation? physical layer data link layer network layer transport layer

network layer

satellite

not suited for heavily wooded areas

What term describes a network where one computer can be both client and server? peer-to-peer cloud BYOD quality of service

peer-to-peer

What term describes a technology that allows devices to connect to the LAN using an electrical outlet? powerline networking internet intranet extranet

powerline networking

security

protect the network from unauthorized access

Fault tolerance

provide redundant links and devices

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 internet intranet extranet

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? encapsulation flow control access method response timeout

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? fault tolerance scalability security Quality of Service (QoS) reliability

security

What command is used to verify the condition of the switch interfaces, including the status of the interfaces and a configured IP address? ipconfig ping traceroute show ip interface brief

show ip interface brief

displays the next screen

space bar

What two criteria are used to help select a network medium from various network media? (Choose two.) the types of data that need to be prioritized the cost of the end devices utilized in the network the distance the selected medium can successfully carry a signal the number of intermediate devices installed in the network the environment where the selected medium is to be installed

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

Which interface allows remote management of a Layer 2 switch? the AUX interface the console port interface the switch virtual interface the first Ethernet port interface

the switch virtual interface

Why would a Layer 2 switch need an IP address? to enable the switch to send broadcast frames to attached PCs to enable the switch to function as a default gateway to enable the switch to be managed remotely to enable the switch to receive frames from attached PCs

to enable the switch to be managed remotely

17. 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 restart the ping process to interrupt the ping process to exit to a different configuration mode to allow the user to complete the command

to interrupt the ping process

At which OSI layer is a destination port number added to a PDU during the encapsulation process? transport layer data link layer network layer application layer

transport

At which OSI layer is a source port number added to a PDU during the encapsulation process? transport layer application layer network layer presentation layer data link layer

transport layer

dialup telephone

typically has very low bandwidth

Scrolls backwards through previously entered commands

up arrow

cable

uses coaxial cable as a medium

What type of network traffic requires QoS? email on-line purchasing video conferencing wiki

video conferencing

What command will prevent all unencrypted passwords from displaying in plain text in a configuration file? (config)# enable password secret (config)# enable secret Secret_Password (config-line)# password secret (config)# service password-encryption (config)# enable secret Encrypted_Password

(config)# service password-encryption

provides context-sensitive help

?

What is an advantage of network devices using open standard protocols? Network communications is confined to data transfers between devices from the same vendor. A client host and a server running different operating systems can successfully exchange data. Internet access can be controlled by a single ISP in each market. Competition and innovation are limited to specific types of products.

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

Which statement describes the use of powerline networking technology? New "smart" electrical cabling is used to extend an existing home LAN. A home LAN is installed without the use of physical cabling. A device connects to an existing home LAN using an adapter and an existing electrical outlet. Wireless access points use powerline adapters to distribute data through the home LAN.

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

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? cloud computing online collaboration bring your own device video conferencing

Bring your own device

aborts commands such as trace and ping

Ctrl-Shift-6

What three application layer protocols are part of the TCP/IP protocol suite? (Choose three.) ARP DHCP DNS FTP NAT PPP

DHCP DNS FTP

What process involves placing one PDU inside of another PDU? encapsulation encoding segmentation flow control

Encapsulation

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 HTTP, TCP, IP, Ethernet Ethernet, TCP, IP, HTTP HTTP, Ethernet, IP, TCP

Ethernet, IP, TCP, HTTP

When data is encoded as pulses of light, which media is being used to transmit the data? Wireless Fiber optic cable Copper cable

Fiber optic cable

What layer is responsible for routing messages through an internetwork in the TCP/IP model? internet transport network access session

Internet

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. Delete the vlan.dat file and reboot the device. Close and reopen the terminal emulation software. Issue the copy startup-config running-config command.

Issue the reload command without saving the running configuration.

What function does pressing the Tab key have when entering a command in IOS? It aborts the current command and returns to configuration mode. It exits configuration mode and returns to user EXEC mode. It moves the cursor to the beginning of the next line. It completes the remainder of a partially typed word in a command.

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

What are three characteristics of an SVI? (Choose three.) It is designed as a security protocol to protect switch ports. It is not associated with any physical interface on a switch. It is a special interface that allows connectivity by different types of media. It is required to allow connectivity by any device at any location. It provides a means to remotely manage a switch. It is associated with VLAN1 by default.

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.

EIA

Nope

Which two host names follow the guidelines for naming conventions on Cisco IOS devices? (Choose two.) Branch2! RM-3-Switch-2A4 Floor(15) HO Floor 17 SwBranch799

RM-3-Switch-2A4 SwBranch799

hich two devices are intermediary devices? (Choose two) Host Router Switch Servers

Router Switch

How is SSH different from Telnet? SSH makes connections over the network, whereas Telnet is for out-of-band access. SSH provides security to remote sessions by encrypting messages and using user authentication. Telnet is considered insecure and sends messages in plaintext. SSH requires the use of the PuTTY terminal emulation program. Tera Term must be used to connect to devices through the use of Telnet. SSH must be configured over an active network connection, whereas Telnet is used to connect to a device from a console connection.

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? Telnet access SVI password encryption physical switchport access

SVI

Which name is assigned to the transport layer PDU? bits data frame packet segment

Segment

Which statement accurately describes a TCP/IP encapsulation process when a PC is sending data to the network? Data is sent from the internet layer to the network access layer. Packets are sent from the network access layer to the transport layer. Segments are sent from the transport layer to the internet layer. Frames are sent from the network access layer to the internet layer.

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

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? DNS server address subnet mask default gateway DHCP server address

Subnet mask

IANA

The Internet Assigned Numbers Authority is the agency that assigns IP addresses to computer networks

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 Ip header is added The TCP header is added The ethernet header is added The Telnet formatted data is provided to the next layer

The Ip header is added -- 3 The TCP header is added -- 2 The ethernet header is added -- 4 The Telnet formatted data is provided to the next layer -- 1

What are two characteristics of RAM on a Cisco device? (Choose two.) RAM provides nonvolatile storage. The configuration that is actively running on the device is stored in RAM. The contents of RAM are lost during a power cycle. RAM is a component in Cisco switches but not in Cisco routers. RAM is able to store multiple versions of IOS and configuration files.

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 stored in flash memory. The new configuration will be loaded if the switch is restarted. The current IOS file will be replaced with the newly configured file. The configuration changes will be removed and the original configuration will be restored.

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

ISOC

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

What is a characteristic of multicast messages? They are sent to a select group of hosts. They are sent to all hosts on a network. They must be acknowledged. They are sent to a single destination.

They are sent to a select group of hosts.

Which statement is correct about network protocols? Network protocols define the type of hardware that is used and how it is mounted in racks. They define how messages are exchanged between the source and the destination. They all function in the network access layer of TCP/IP. They are only required for exchange of messages between devices on remote networks.

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 encrypts passwords as they are transmitted across serial WAN links. This command prevents someone from viewing the running configuration passwords. This command enables a strong encryption algorithm for the enable secret password command. This command automatically encrypts passwords in configuration files that are currently stored in NVRAM. This command provides an exclusive encrypted password for external service personnel who are required to do router maintenance.

This command prevents someone from viewing the running configuration passwords.

ISO

This organization is the largest developer of international standards in the world. Created OSI model