Networks Flashcards
Network scope and type that uses wireless radio communications based on some variant of the 802.11 (Wi-Fi) standard series.
wireless local area network (WLAN)
Brand name for the IEEE 802.11 standards that can be used to implement a wireless local area network (WLAN).
wifi
Network scope that spans a large geographical area, incorporating more than one site and often a mix of different media types and protocols plus the use of public telecommunications networks.
wide area network (WAN)
Network scope covers the area of a city (that is, no more than tens of kilometers).
Metropolitan area network (MAN)
Category of network type and products that are used to implement small-scale LANs and off-the-shelf Internet connection types
small office home office (SOHO)
A network technician is upgrading the wireless network so that it can take advantage of “multiple input multiple output” (MIMO) to increase reliability and bandwidth. What standard is the technician upgrading the wireless network to?
802.11n
802.11g
802.11b
802.11a
The technician is upgrading the wireless network to 802.11n which uses MIMO to increase reliability and bandwidth by multiplexing signal streams from 2–3 separate antennas.
The IEEE 802.11g uses the same encoding mechanism and 54 Mbps rate as 802.11a but in the 2.4 GHz band used by 802.11b and with the same channel layout.
The IEEE 802.11b standard uses the 2.4 GHz frequency band, however, the signal encoding methods used by 802.11b are inferior to 802.11a and support a nominal data rate of just 11 Mbps.
The IEEE 802.11a standard uses the 5 GHz frequency band only. The data encoding method allows a maximum data rate of 54 Mbps.
A network technician used a tool that energizes each wire in a cable. When the technician sent energy to some of the wires, the LED on the tool did not light up. What tool was the technician using?
Toner probe
Tone generator
Cable tester
Loopback plug
The technician was using a cable tester, which is a pair of devices that attach to each end of a cable and energize each wire in the cable to test if the wire is conducting a signal.
A toner probe identifies a cable from within a bundle. This may be necessary when cable technicians have not properly labeled the cables.
A tone generator applies a continuous audio signal on a cable to detect the signal and follow the cable over ceilings and through ducts.
A loopback plug tests a network interface card (NIC) or switch port. When a technician connects a loopback plug to a port, a solid link LED shows that the port can send and receive.
A network technician sets up the wireless network in such a way that each client device connects to the network via an access point (AP). What type of configuration is this?
Frequency bands
Infrastructure mode
DFS
Channels
Infrastructure mode
An organization located on a large piece of rural property needs to connect its office building on the north side of the property with its warehouse and shipping operation on the south side of the property. The organization decides to connect the locations using long-range fixed wireless. What frequency spectrum must the organization use to ensure that nobody else can use the same frequency band?
Unlicensed
Licensed
802.11ax
DFS
Licensed
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A company hired an administrator to manage their computers that host the employees’ shared resources and applications. What kind of computers will the administrator manage?
Client
SAN
Server
Datacenter
Server
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A network technician is installing a device with an inductor that will copy all the traffic coming through the cable to a monitor port. What type of device is the technician installing?
SMF
MMF
Active TAP
Passive TAP
The technician is installing a passive test access point (TAP) which is a box with ports for incoming and outgoing network cabling that physically copies the signal from the cabling to a monitor port.
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A technician is assisting the CISO in wirelessly transferring data between their smart watch and their corporate PC. As the CISO’s request uses two devices in close proximity, what network method has a limited range?
Wi-Fi
LAN
PAN
WLAN
A personal area network (PAN) refers to using wireless connectivity to connect to devices at a range of a few meters and can be used to share data between a PC and mobile devices and wearable technology devices, such as smartwatches.
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A network technician is trying to locate the Cat 6A cable in a closet full of unmarked boxes with different types of cabling in them. How will the technician be able to tell which cable is Cat 6A? (Select all that apply.)
The words “twisted pair cable” is on the cable jacket.
The TIA/EIA standard is on the cable jacket.
The Cat specification is on the cable jacket.
The cable type is on the cable jacket.
The Cat specification is on the cable jacket.
The cable type is on the cable jacket.
A small company hired a network technician to upgrade its network. Surprisingly the company was still using a legacy hardware device that configures a network into a star topology. What device was this?
Managed switch
PoE-enabled switch
Hub
Patch panel
hub
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A college that has several campuses located in different parts of the city has hired a network technician. What type of network will the technician most likely be working on?
LAN
Wi-Fi
MAN
WAN
The network technician will be working on a metropolitan area network (MAN), which can be a company with multiple connected networks within the same metropolitan area.
A local area network (LAN) is a group of computers connected by cabling and one or more network switches that are all installed at a single geographical location.
A wireless local area network (WLAN), also known as Wi-Fi, uses radios and antennas for data transmission and reception. Most WLANs are based on the IEEE 802.11 series of standards.
A wide area network (WAN) spans multiple geographic locations. One example of a WAN is the internet, a global network of networks.
