NetAcad test Flashcards
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?
- DoS attack
- identity theft
- spyware
- zero-day attack
Spyware - is software that is installed on a network device and that collects information.
Which term refers to a network that provides secure access to the corporate offices by suppliers, customers and collaborators?
- Internet
- intranet
- extranet
- extendednet
Extranet - The term Internet refers to the worldwide collection of connected networks. Extranets provide secure and safe access to suppliers, customers, and collaborators. Extendednet is not a type of network.
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 - BYOD allows end users to use personal tools to access the corporate network.
What is an ISP?
- It is a standards body that develops cabling and wiring standards for networking.
- It is a protocol that establishes how computers within a local network communicate.
- It is an organization that enables individuals and businesses to connect to the Internet.
- It is a networking device that combines the functionality of several different networking devices in one.
An ISP, or Internet Service Provider, is an organization that provides access to the Internet for businesses and individuals.
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
Intranet - Intranet is a term used to refer to a private connection of LANs and WANs that belongs to an organization.
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. - Powerline networking adds the ability to connect a device to the network using an adapter wherever there is an electrical outlet.
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 - Network security includes protecting the confidentiality of data that is on the network.
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
What type of network traffic requires QoS?
- on-line purchasing
- video conferencing
- wiki
Video conferencing - utilizes real-time audio and video communications.
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
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
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
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.
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
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
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.
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
- SwBranch799
- RM-3-Switch-2A4
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.
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
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
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.
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 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.
Which name is assigned to the transport layer PDU?
- bits
- data
- frame
- packet
- segment
- segment
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
What process involves placing one PDU inside of another PDU?
- encapsulation
- encoding
- segmentation
- flow control
- encapsulation
What layer is responsible for routing messages through an internetwork in the TCP/IP model?
- internet
- transport
- network access
- session
- internet
Which PDU format is used when bits are received from the network medium by the NIC of a host?
- file
- frame
- packet
- segment
- frame
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 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
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 layer of the OSI model would a logical address be added during encapsulation?
- physical layer
- data link layer
- network layer
- transport layer
- network layer
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.
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
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
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
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 type of network used by people who work from home or from a small remote office?
- SOHO network
- BYOD
- quality of service
- converged network
- SOHO network
What term describes a computing model where server software runs on dedicated computers?
- client/server
- internet
- intranet
- extranet
- client/server
What term describes a technology that allows devices to connect to the LAN using an electrical outlet?
- powerline networking
- internet
- intranet
- extranet
- 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
- internet
- intranet
- extranet
- quality of service
What term describes a private collection of LANs and WANs that belongs to an organization?
- intranet
- internet
- extranet
- peer-to-peer
- intranet
What term describes the ability to use personal devices across a business or campus network?
- BYOD
- internet
- intranet
- extranet
- BYOD
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 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 layer
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
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
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
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 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
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
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
When data is encoded as pulses of light, which media is being used to transmit the data?
- Wireless
- Fire optic cable
- Copper cable
- Fire optic cable
Which two devices are intermediary devices? (Choose two)
- Host
- Router
- Switch
- Servers
- Router
- Switch
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?
- quality of service (QoS)
- scalability
- security
- fault tolerance
- integrity
- fault tolerance
