ITN 154 Chapter Exam 1
fault tolerance
A college is building a new dormitory on its campus. Workers are digging in the ground to install a new water pipe for the dormitory. A worker accidentally damages a fiber optic cable that connects two of the existing dormitories to the campus data center. Although the cable has been cut, students in the dormitories only experience a very short interruption of network services. What characteristic of the network is shown here?
Bring Your Own Device (BYOD)
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?
This command prevents someone from viewing the running configuration passwords.
A network administrator enters the service password-encryption command into the configuration mode of a router. What does this command accomplish?
Lineconin or the config-line password
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?
Security
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?
user EXEC mode
A router with a valid operating system contains a configuration file stored in NVRAM. The configuration file has an enable secret password but no console password. When the router boots up, which mode will display?
Implementing a firewall Installing antivirus software
A user is implementing security on a small office network. Which two actions would provide the minimum security requirements for this network?
Ethernet, IP, TCP, HTTP
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?
Ctrl-Shift-6
Aborts commands such as trace and ping
The new configuration will be loaded if the switch is restarted.
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?
Nothing must be done. Changes to the configuration on an IOS device take effect as soon as the command is typed correctly and the Enter key has been pressed.
An administrator has just changed the IP address of an interface on an IOS device. What else must be done in order to apply those changes to the device?
First mode - user EXEC mode Second mode - privileged EXEC mode Third mode - global configuration mode Final mode - line configuration mode
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?
The administrator must first enter privileged EXEC mode before issuing the command.
An administrator is trying to configure the switch but receives the error message, "% Invalid input detected at '^' marker."
To interrupt the ping process
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?
An intranet
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?
VPN
An employee wants to access the network of the organization remotely, in the safest possible way. What network feature would allow an employee to gain secure remote access to a company network?
transport layer
At which OSI layer is a destination port number added to a PDU during the encapsulation process?
network layer
At which OSI layer is a source IP 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?
application layer
At which OSI layer is data 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?
Tab
Completes abbreviated commands and parameters
Space bar
Displays the next screen
Spyware
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?
Scalability
Expands the network without degrading the service for existing users
First - the Telnet-formatted data is provided to the next layer. Second - The TCP header is added. Third - The IP header is added. Fourth - The ethernet header is added
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?
DSL
High bandwidth connection that runs over telephone line
BOYD provides flexibility in where and how users can access network resources.
How does BYOD change the way in which businesses implement networks?
SSH provides security to remote sessions by encrypting messages and using user authentication. Telnet is considered insecure and sends messages in plaintext.
How is SSH different from Telnet?
a keyword
In the show running-config command, which part of the syntax is represented by running-config?
a farm in a rural area without wired broadband access
In which scenario would the use of a WISP be recommended?
Global configuration mode
Match the description with the associated IOS mode. Accessed by entering the configure terminal command
Global configuration mode
Match the description with the associated IOS mode. Changes made affect the operation of the device as a whole.
Privileged EXEC mode
Match the description with the associated IOS mode. Identified by a prompt ending with the # character.
User EXEC mode
Match the description with the associated IOS mode. Limited number of basic monitoring commands
User EXEC mode
Match the description with the associated IOS mode. The first entrance into the CLI of an IOS device
Privileged EXEC mode
Match the description with the associated IOS mode. Accessed by entering the enable command.
Satellite
Not suited for heavily wooded areas
Console interface Privileged EXEC mode
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.
Security
Protects the network from unauthorized access
?
Provides context-sensitive help
Fault tolerance
Provides redundant links and devices
Up Arrow
Scrolls backwards through previously entered commands
IANA
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
This organization promotes the open development, evolution, and use of the Internet throughout the world.
Dialup telephone
Typically has very low bandwidth
Cable
Uses coaxial cable as a medium
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 are three characteristics of an SVI?
The configuration that is actively running on the device is stored in RAM. The contents of RAM are lost during a power cycle.
What are two characteristics of RAM on a Cisco device?
Grows in size without impacting existing users. Suitable for modular devices that allow for expansion.
What are two characteristics of a scalable network?
They originate the data that flows through the network. They are the interface between humans and the communication network.
What are two functions of end devices on a network?
scalability
What characteristic of a network enables it to quickly grow to support new users and applications without impacting the performance of the service being delivered to existing users?
show ip interface brief
What command is used to verify the condition of the switch interfaces, including the status of the interfaces and a configured IP address?
(config)# service password-encryption
What command will prevent all unencrypted passwords from displaying in plain text in a configuration file?
It completes the remainder of a partially typed word in a command
What function does pressing the Tab key have when entering a command in IOS?
They are sent to a select group of hosts.
What is a characteristic of multicast messages?
It is an organization that enables individuals and businesses to connect to the Internet.
What is an ISP?
A client host and a server running different operating systems can successfully exchange data.
What is an advantage of network devices using open standard protocols?
It provides connections through interconnected global networks.
What is the Internet?
VLAN1
What is the default SVI on a Cisco switch?
It interfaces between the users and the kernel.
What is the function of the shell in an OS?
Switch Virtual Interface (SVI)
What is the technician configuring?
Internet
What layer is responsible for routing messages through an internetwork in the TCP/IP model?
Flow control
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
What process involves placing one PDU inside of another PDU?
client/server
What term describes a computing model where server software runs on dedicated computers?
Extranet
What term describes a network owned by one organization that provides safe and secure access to individuals who work for a different organization?
peer-to-peer
What term describes a network where one computer can be both client and server?
Quality of service
What term describes a policy that allows network devices to manage the flow of data to give priority to voice and video?
Intranet
What term describes a private collection of LANs and WANs that belongs to an organization?
powerline networking
What term describes a technology that allows devices to connect to the LAN using an electrical outlet?
SOHO network
What term describes a type of network used by people who work from home or from a small remote office?
Cloud
What term describes storing personal files on servers over the internet to provide access anywhere, anytime, and on any device?
BYOD
What term describes the ability to use personal devices across a business or campus network?
DHCP DNS FTP
What three application layer protocols are part of the TCP/IP protocol suite?
The distance the selected medium can successfully carry a signal The environment where the selected medium is to be installed
What two criteria are used to help select a network medium from various network media?
the Internet
What type of network must a home user access in order to do online shopping?
Video conferencing
What type of network traffic requires QoS?
subnet mask
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?
the hostname should be fewer than 64 characters in length the hostname should contain no spaces the hostname should begin with a letter
When a hostname is configured through the Cisco CLI, which three naming conventions are part of the guidelines?
Frame
Which PDU format is used when bits are received from the network medium by the NIC of a host?
exit
Which command or key combination allows a user to return to the previous level in the command hierarchy?
a router
Which device performs the function of determining the path that messages take through internetworks?
The switch virtual interface
Which interface allows remote management of a Layer 2 switch?
RAM
Which memory location on a Cisco router or switch will lose all content when the device is restarted?
response timeout
Which method allows a computer to react accordingly when it requests data from a server and the server takes too long to respond?
Segment
Which name is assigned to the transport layer PDU?
Segments are sent from the transport layer to the internet layer.
Which statement accurately describes a TCP/IP encapsulation process when a PC is sending data to the network?
A device connects to an existing home LAN using an adapter and an existing electrical outlet
Which statement describes the use of powerline networking technology?
They define how messages are exchanged between the source and the destination.
Which statement is correct about network protocols?
It affects the operation of the device immediately when modified.
Which statement is true about the running configuration file in a Cisco IOS device?
Extranet
Which term refers to a network that provides secure access to the corporate offices by suppliers, customers and collaborators?
Cellular Satellite
Which two Internet connection options do not require that physical cables be run to the building?
data link physical
Which two OSI model layers have the same functionality as a single layer of the TCP/IP model?
RM-3-Switch-2A4 SwBranch799
Which two host names follow the guidelines for naming conventions on Cisco IOS devices?
The device prompt for this mode ends with the ">" symbol. Only some aspects of the router configuration can be viewed.
Which two statements are true regarding the user EXEC mode?
privileged EXEC
Which type of access is secured on a Cisco router or switch with the enable secret command?
Issue the reload command without saving the running configuration.
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?
to enable the switch to be managed remotely
Why would a Layer 2 switch need an IP address?
