Networking Basics
What is a service that provides an internet data signal on the same network that delivers broadcast television and phone service? Guest access Cable internet Digital Subscriber Line (DSL) Cellular data plan
Cable Internet
What is used to identify a specific wireless network? the network mode the IP address of the router the network address the Service Set Identifier (SSID)
SSID
What type of internet connection would be best for a residence in a remote area without mobile phone coverage or wired connectivity? dial-up cellular satellite DSL
Satellite
Which term is used to describe a network device with the primary function of providing information to other devices? workstation console server client
Server
Which type of network must a home user access in order to do online shopping? a) a SOHO network b) the internet c) a local area network
b) the internet
A home router typically only provides wired access to the network. You have to buy a separate device for wireless access. false true
false
True or False? If you have devices on your wireless network that are using a variety of different 802.11 standards, then you should set your network to the highest standard to get the best throughput. false true
false. The network should be configured for mixed mode to include devices that use any of the existing Wi-Fi standards.
Which two devices are considered end devices? (Choose two.) laptop switch router hub printer
laptop, printer
What is the most common type of wired media used by TV companies to connect and carry signals to a set-top box within a home? fiber-optic cable coaxial cable twisted-pair cable
coaxial cable
What networking term describes a particular set of rules at one layer that govern communication at that layer? duplex encapsulation error checking protocol
protocol
What is the purpose of protocols in data communications? specifying the bandwidth of the channel or medium for each type of communication specifying the device operating systems that will support the communication providing the rules required for a specific type of communication to occur dictating the content of the message sent during communication
providing the rules required for a specific type of communication to occur
True or false? Certain areas of the electromagnetic spectrum can be used without a permit. false true
true
A network administrator in a small office is upgrading the local network within the building. New network cables are needed to connect office computers and networking devices. Which network media should the administrator use? coaxial cable wireless solution fiber-optic cable twisted-pair cable
twisted pair cable
Which is the most common type of wired media to connect end devices to an Ethernet LAN? fiber-optic cable coaxial cable twisted-pair cable
twisted-pair cable
Which type of network cable is commonly used to connect office computers to the local network? coaxial cable twisted-pair cable glass fiber-optic cable plastic fiber-optic cable
twisted-pair cable
Which technology will allow a mobile device to share an internet connection with other devices via tethering? GPS Bluetooth near field communication Wi-Fi
Blueooth
A user is looking for a wireless headphone for listening to songs stored on a smartphone. What wireless technology would the headphone use? Bluetooth Wi-Fi 3G/4G infrared
Bluetooth
What technology enables a cell phone to be used as a hands-free device? Wi-Fi Bluetooth 4G NFC
Bluetooth
Which of the following is a low-power, shorter range wireless technology that is intended to replace wired connectivity for accessories such as speakers or a mouse? GPS Wi-Fi Bluetooth NFC
Bluetooth
What two pieces of information are required when manually connecting either an iOS device or an Android device to a secured wireless network? (Choose two.) the IP address the SSID the username the password
SSID, Password
Which type of wireless communication is based on 802.11 standards? Wi-Fi Cellular WAN Bluetooth Infrared
Wi-Fi
What purpose would a home user have for implementing Wi-Fi? to hear various radio stations to connect a keyboard to a PC to connect wireless headphones to a mobile device to create a wireless network usable by other devices
To create a wireless network usable by other devices
Which three devices are considered intermediate devices in a network? (Choose three.) switch wireless access point router server network printer workstation
switch, router, wireless access point
Rosalía works as a community health worker in Rio Claro, Brazil. Most of her time is spent making home visits to provide primary care to people in her community. However, she requires internet access to maintain her patient records and provide videoconferencing with a doctor, when needed. What end device and media type does Rosalía most likely use? (Choose two.) router tablet desktop computer WAN media LAN media wireless media
tablet, wireless media
What term is used to describe connecting a mobile device to another mobile device or computer to share a network connection? joining syncing pairing tethering
tethering
One byte is equal to _ bits
8
Which feature is characteristic of MAC filtering in wireless networks? It restricts computer access to a wireless network. It encrypts data that is transmitted on a wireless network. It is configured on the computer rather than on the router. It allows only authorized users to detect the network.
A MAC filtering restricts computer access to a wireless network by only allowing devices with authorized MAC addresses to connect to the network. It does not prevent unauthorized users from detecting the network, as detecting the network is based on the wireless network name (SSID) broadcasting from the router. Unauthorized users can still detect the network, but they cannot connect to it unless their device's MAC address has been authorized by the network administrator. Therefore, option A is correct and option D is not correct.
Which organization publishes and manages the Request for Comments (RFC) documents? IEEE ISO IETF TIA/EIA
IETF
Is a switch an end device or intermediary device?
Intermediary
Which technology is used to uniquely identify a WLAN network? WEP SSID MAC address table WPA
SSID
Which of the following is NOT a criterion for choosing a network media? The maximum distance that the media can successfully carry a signal The cost of installing the media The type of data that can be transmitted The environment in which the media is installed
The type of data that can be transmitted
Which layer of the OSI model defines services to segment and reassemble data for individual communications between end devices? application presentation session transport network
Transport
Which two types of network media carries data encoded into electrical impulses? (Choose two.) coaxial cable wireless media twisted-pair cable glass fiber-optic cable plastic fiber-optic cable
coaxial cable twisted-pair cable
Which type of network media carries data encoded into electrical impulses? copper cable wireless media fiber-optic cable cellular communication media
copper cable
What are two common media used in networks? (Choose two.) copper water nylon fiber wood
copper fiber
A network technician is extending the network from the main office building over several hundred meters to a new security station. The security station needs a high speed connection to support video surveillance of the main building. What type of cable is best suited to connect the security station to the rest of the main office network? coax fiber optic shielded twisted pair unshielded twisted pair
fiber optic
Which type of network media carries data encoded into impulses of light? coaxial cable wireless media fiber-optic cable twisted-pair cable
fiber-optic cable
Which type of wired media is used to carry digital information at very high speeds over long distances? twisted-pair cable fiber-optic cable coaxial cable
fiber-optic cable
What makes fiber preferable to copper cabling for interconnecting buildings? (Choose three.) greater distances per cable run l ower installation cost limited susceptibility to EMI/RFI durable connections greater bandwidth potential easily terminated
greater distances per cable run , limited susceptibility to EMI/RFI greater bandwidth potential
Which three layers of the OSI model make up the application layer of the TCP/IP model? (Choose three.) data link network transport session presentation application
session, presentation, application
Which term refers to the set of rules that define how a network operates? standard protocol model domain
standard
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
physical , data link
Which three factors should be considered when choosing the appropriate network media? (Choose three.) the speed of the CPU and amount of memory in servers the environment in which the media is installed the data security and fault tolerance requirement the amount of data and the data transfer rate desired the distance between hosts that the media will connect the operating systems used on network devices in the network
the environment in which the media is installed the amount of data and the data transfer rate desired the distance between hosts that the media will connect
What is the purpose of using twisted pairs of wires in an Ethernet cable? to reduce interference to provide higher bandwidth to identify paths of data flow to ensure that the transmission of electrical signals is extended over a longer distance
to reduce interference
How many unique values are possible using a single binary digit? 4 9 2 16
2
Which wireless RF band do IEEE 802.11b/g devices use? 5 GHz 60 GHz 2.4 GHz 900 MHz
2.4 GHz
What two radio frequency bands are used in home Wireless LANs? (Choose two.) 2.4 GHz 900 GHz 9 MHz 5 GHz
2.4 GHz , 5 GHz
What is the order of bandwidth measurement from smallest to largest? Kbps, Tbps, Mbps, Gbps Gbps, Tbps, Mbps, Kbps Tbps, Mbps, Kbps, Gbps Kbps, Mbps, Gbps, Tbps
Kbps, Mbps, Gbps, Tbps
What type of device is commonly connected to the Ethernet switch ports on a home wireless router? DSL modem cable modem wireless antenna LAN device
LAN device
True or false? Wi-Fi, Bluetooth, and cordless phones all use the same frequency ranges. true false
false
What can be used to allow visitor mobile devices to connect to a wireless network and restrict access of those devices to only the internet? MAC address filtering guest SSID encryption authentication
guest SSID
Is a firewall an end device or intermediary device?
Intermediary
Is a router an end device or intermediary device?
Intermediary device
Which is a characteristic of the network SSID? It is case sensitive. It contains exactly 16 characters. It is encrypted by default. It is only required for guest access.
It is case sensitive
A consumer places a smartphone close to a pay terminal at a store and the shopping charge is successfully paid. Which type of wireless technology was used? Wi-Fi 3G Bluetooth NFC
NFC
Which of the following measurements includes any latency encountered during data transmissions? a) throughput b) bandwidth c) throughput d) data rate
throughput
Eilert recently got a job with a computer support services company in his hometown of Falun, Sweden. A customer has asked for someone to come connect their home network to the internet. They only have a cable modem. Which of the following intermediary devices would Eilert most likely take with him to the job? multilayer switch firewall appliance wireless router desktop computer LAN switch
wireless router
Which category of network components includes wires and cables used in a wired network? a) media b) devices c) peripherals d) hosts
A) Media. The category of network components that includes wires and cables used in a wired network is called media. Network media are the physical channels used to transmit data between devices on a network. They can be wired (e.g., Ethernet cables, coaxial cables, and fiber-optic cables) or wireless (e.g., radio waves, infrared, or microwave signals).
Which measurement is used to indicate thousands of bits per second? a) Kbps b) Mbps c) Tbps d) Gbps
a) Kbps
A network where two computers are communicating with each other as both a client and as a server is known as a: client-to-server network client-to-client network server-to-server network peer-to-peer network
peer-to-peer network
A basic unit of information that represents one of two discrete states is known as a:
A) Octet: An octet is a group of eight bits. It is often used synonymously with the term "byte," although technically, a byte can consist of a varying number of bits depending on the specific computer system or context. In general, a byte is composed of 8 bits in most modern computer systems. B) Bit: As explained earlier, a bit is the basic unit of information in digital systems, representing one of two discrete states (0 or 1). Bits are used to store, process, and transmit data in computing and digital communication systems. C) Byte: A byte is a group of bits, commonly consisting of 8 bits, that represent a single character, number, or symbol in a computer system. Bytes are larger units of information than bits and are used to measure data storage capacity and data transfer rates. D) Electrical Signal: An electrical signal is a physical representation of data, typically in the form of voltage or current fluctuations. While electrical signals are used to transmit bits and other units of digital data, they are not the basic unit of information themselves.
What is a characteristic of a peer-to-peer application? Each device using the application provides a user interface and runs a background service. Each device can act both as a client and a server, but not simultaneously. The resources required for the application are centralized. One device is designated a server and one device is designated a client for all communications and services.
Each device using the application provides a user interface and runs a background service
Which of the following is used to connect a wired device to the internal switch of the home router? Wireless port Power port Internet port Ethernet port
Ethernet port
Which three acronyms/initialisms represent standards organizations? (Choose three.) IANA TCP/IP IEEE IETF OSI MAC
IANA IEE IETF
What are two functions of end devices on a network? (Choose two.) They originate the data that flows through the network. They direct data over alternate paths in the event of link failures. They filter the flow of data to enhance security. They are the interface between humans and the communication
They originate the data that flows through the network They are the interface between humans and the connection
What is another term for the internet port of a wireless router? WAN port LAN port local port switch port
WAN port
What can be placed inside of or on a package so that it can be tracked?
A) RFID tag: As explained earlier, RFID tags are small devices that use radio waves to communicate with RFID readers, allowing for real-time tracking of packages. They are commonly used in supply chain management, inventory control, and asset tracking. B) Sensor: Sensors are devices that detect and respond to changes in their environment, such as temperature, humidity, or pressure. While they can provide valuable information about the conditions a package is exposed to during transit, they do not inherently enable package tracking. C) Actuator: Actuators are devices that convert an input signal (such as an electrical signal) into physical motion or action. They are commonly used in robotics and industrial automation but do not provide tracking capabilities for packages. D) Network Interface Card: A Network Interface Card (NIC) is a hardware component that connects a computer or other device to a network, enabling communication with other devices on that network. While NICs are essential for network connectivity, they are not used for tracking packages.
What type of network allows computers in a home office or a remote office to connect to a corporate network? A) World Wide Network B) Medium To Large Network C) Smart Home Network D) Small Office Home Office Network
A) World Wide Network: This term is not a specific type of network. It may refer to the global internet, which connects millions of networks worldwide, but it is not a specific solution for connecting home offices to corporate networks. B) Medium To Large Network: This term refers to the size of a network, not a specific type of network designed for connecting remote offices or home offices to a corporate network. Medium to large networks typically cater to businesses with a larger number of devices and users. C) Smart Home Network: A smart home network is designed for connecting various smart devices within a household, such as thermostats, security systems, and appliances. While it enables connectivity and automation within a home, it is not specifically designed for connecting a home office to a corporate network. D) Small Office Home Office Network (SOHO): This is the correct answer, as a SOHO network is specifically designed to connect small and remote offices to a central corporate network, providing the necessary resources and communication capabilities to enable effective remote work.
What is an internet service that uses mobile phone networks to transmit data? Digital Subscriber Line (DSL) Cable internet Cellular data plan Guest access
Cellular data plan
A home user is looking for an ISP connection that provides high speed digital transmission over regular phone lines. What ISP connection type should be used? DSL dial-up satellite cell modem cable modem
DSL
What are two types of wired high-speed Internet connections? (Choose two.) cellular satellite dial-up DSL cable
DSL, cable
What is a service that provides high bandwidth, always on, connection using existing land-line telephone wires? Guest access Digital Subscriber Line (DSL) Cable internet Cellular data plan
Digital Subscriber Line (DSL)
Is a PC an end device or intermediary device?
End
Is a smart device an end device or intermediary device?
End devices
Which type of network technology is used for low-speed communication between peripheral devices? Bluetooth Ethernet 802.11 channels
Bluetooth
Which wireless technology can be used to connect wireless headphones to a computer? NFC Bluetooth Wi-Fi 4G
Bluetooth
Which wireless technology uses a device-pairing process to communicate and operates over short distances of 100 meters? wireless wide-area network Wi-Fi Bluetooth GPS
Bluetooth
Which device is an intermediary device? firewall PC server smart device
A firewall is an intermediary device. It is positioned between networks, such as an internal network and the internet, and serves to control and monitor network traffic, enhancing security by filtering and blocking potentially harmful data
Which scenario describes a peer-to-peer network? Users access shared files from a file server. A user visits a webpage on the company web site. A user has shared a printer attached to the workstation. Users print documents from a network printer that has a built-in NIC.
A user has a shared printer attatched to the work station The other scenarios involve centralized servers or devices with built-in network interfaces, which are not typical of peer-to-peer networks.
When using your credit card to make purchases at several places, the credit card company can use this information to learn about your location and your preferences. This type of personal data is known as: a) Secret data b) Inferred data c) Volunteer data d) Observed data
B) Inferred Data
Which wired network technology has an inner wire surrounded by a tubular insulating layer, that is then surrounded by a tubular conducting shield. Fiber-optic cable Category 5 cable Coaxial cable
Coaxial cable
A salesperson is using a smartphone map application to locate a business. What wireless technology enables the smartphone to receive satellite geolocation information for the map application? GPS NFC Wi-Fi Bluetooth
GPS
Which organization is responsible for testing wireless LAN devices? TIA/EIA IEEE Wi-Fi Alliance IETF
IEEE
Which of the following is a wireless communication technology that enables a smartphone to communicate with a payment system within a few centimeters away? Wi-Fi GPS NFC Bluetooth
NFC
Which technology allows a mobile device to establish wireless communication with another mobile device by touching them together? Bluetooth NFC GPS 4G
NFC
Which wireless technology allows a customer to connect to a payment system with a smartphone? NFC Wi-Fi GPS Bluetooth
NFC
IP addressing occurs at what layer of the OSI Model? network application data link presentation transport session physical
Network
The IETF (Internet Engineering Task Force) records and publishes internet standards in documents known as: Request for Comments (RFC) IETF Standards Documents (ISD) Internet Protocol Standards (IPS) Internet Specification Standards (ISS)
Request for Comments (RFC)
Which term correctly describes the function of an ISP? responsible for managing local networks responsible for the maintenance of SOHO networks responsible for providing the link between a private network and the internet. responsible for providing security on private networks
Responsible for providing the link between a private network and the internet
What is the default SSID Broadcast setting on a wireless router? Enabled Disabled Auto Off
The default SSID Broadcast setting on a wireless router is usually "Enabled". This means that the router will broadcast its SSID (Service Set Identifier) to nearby devices, allowing them to see and connect to the network.
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 two methods are used to directly connect mobile devices such as tablets and smartphones to a data network? (Choose two.) Bluetooth Wi-Fi wired Ethernet cellular communications
Wi-FI, cellular communications
A student purchased a new Wi-Fi-enabled tablet computer. What is required to connect this device to the internet? a 3G or 4G network a telephone company a wireless LAN a mobile phone service provider
Wireless LAN
A user is setting up a home wireless network. Which type of device must the user have in order to establish the wireless network and provide access to the internet for multiple home devices? patch panel switch wireless router hub
Wireless router
Which items are collectively referred to as network media? wires and radio waves routers and switches firewalls and servers PCs and laptops
Wires and radio waves are collectively referred to as network media. Network media refers to the physical or wireless medium through which data is transmitted between devices on a network.
What information may be requested when pairing devices over Bluetooth? a PIN an IP address a username the SSID
a PIN
A smart phone uses web browser software to request and display a web page. The smart phone is considered what type of computer? a client b server c requester d smart host
a client
What allows digital devices to interconnect and transmit data? a sensor a smart phone a network a global positioning sensor
a network
Which type of connected device is placed on objects to track and monitor them? a) RFID tags b) sensors c) actuators d) consoles
a) RFID tags
What type of device is able to create physical movement? a) actuator b) sensor c) RFID tag d) console
a) actuator
Which of the following measurements includes any latency encountered during data transmissions? a) bits per second b) total number of bytes c) bits per millisecond d) bytes per second e) total number of bits g) bytes per millisecond
a) bits per second
What are three options for signal transmission on a network? (Choose three.) a) radio waves b) vibration pulses c) sound waves d) electrical pulses e) light pulses
a) radio waves b) electrical pulses c) light pulses Electrical signals - Transmission is achieved by representing data as electrical pulses on copper wire. Optical signals - Transmission is achieved by converting the electrical signals into light pulses. Wireless signals - Transmission is achieved by using infrared, microwave, or radio waves through the air.
What is an example of a binary value in everyday life? a)room temperature b) a simple light switch c) speed of a traveling car d) brightness of a light bulb
b) a simple light switch
The capacity of the medium to carry data is known as: a) speed b) bandwidth c)throughput d) data rate
b) Bandwith
What is the internet? a) the type of physical media used by computers to access the World Wide Web b) a network of networks c) an application used to access the World Wide Web d) a small isolated internal network of a company
b) a network of networks
A computer that has software installed to provide information such as email or web pages to other devices is known as a: a)client b)server c)smart phone d)smart host
b_)server
What data representation is used when a computer or network device is processing data? text binary readable inferred
binary
Which type of network cable consists of 4 pairs of twisted wires? category 5e coaxial Ethernet over powerline fiber optic
category 5e
What are two methods typically used on a mobile device to provide internet connectivity? (Choose two.) cellular Bluetooth Wi-Fi NFC GPS
cellular, Wi-Fi
n the context of mobile devices, what does the term tethering involve? connecting a mobile device to another mobile device or computer to share a network connection connecting a mobile device to a hands-free headset connecting a mobile device to a USB port on a computer in order to charge the mobile device connecting a mobile device to a 4G cellular network
connecting a mobile device to another mobile device or computer to share a network connection
Who owns the internet? a) Bill gates b) Cisco c) The government D) no one person or group
d) no one person or group
What is an advantage of the peer-to-peer network model? scalability high level of security ease of setup centralized administration
ease of setup
Rory is studying the fields inside an Ethernet frame for an upcoming test and notices that the destination Media Access Control (MAC) address is listed first before the source MAC address. Which of the following protocol characteristics is Rory investigating? message pattern encapsulation encoding message timing timing
encapsulation
As Rory continues to study Ethernet, he discovers that a frame can typically be 64 to 1518 bytes of information that is converted into a series of bits before being sent out on the network. Which two protocol characteristics did Rory learn about for Ethernet? timing message pattern encapsulation encoding message size
encoding, message size
What wireless router configuration would stop outsiders from using your home network? IP address encryption router location network name
encryption
Is a printer an end device or intermediary device?
end device
Bianka, a Polish traveler in Hanoi, Vietnam, stops and asks Nguyệt for directions to the Ngoc Son Temple. They verbally communicate and determine that they both speak English. After receiving directions in English to the temple, Bianka repeats them to Nguyệt. Nguyệt says, "Yes, that is correct." Select the order of the communications protocols used in this scenario? language, method, confirmation confirmation, method, language method, confirmation, language method, language, confirmation
method, language, confirmation
What is the purpose of the OSI physical layer? controlling access to media transmitting bits across the local media performing error detection on received frames exchanging frames between nodes over physical network media
transmitting its across local media
What type of network is defined by two computers that can both send and receive requests for resources? client/server peer-to-peer enterprise campus
peer-to-peer
Which two layers of the OSI Model maps directly as the single network access layer in the TCP/IP model? (Choose two) application transport session physical presentation network data link
physical data link