Lesson 15: Deploying and Troubleshooting Wireless Networks

A network administrator performs a site survey to determine the optimal position for an access point (AP). The AP must be able to reach the manager's office in the far corner of the office floor. Which of the following should the network administrator consider when selecting a wireless router that can reach all users in the office and is compatible with most wireless devices? (Select all that apply.) 2.4 Ghz frequency band 5.0 Ghz frequency band Unidirectional antennas Omnidirectional antennas

2.4 Ghz frequency band 5.0 Ghz frequency band Omnidirectional antennas

Which cellular technology provides an estimated real-world download of up to 300 Megabits per second (Mbps)? 2G 4G 3G 5G

5G

What standards are most wireless LANs based on? A.802.11 B.Wi-Fi 5 C.MU-MIMO D.Cellular radio

802.11

Which of the following 802.11 standards will provide the fastest wireless network throughput and work in the 5 GHz band only? 802.11g 802.11n 802.11b 802.11ac

802.11ac

A manager wants to deploy a wireless network in the Internet cafe; that will support wireless gamers. The access point must support the fastest data rates and be able to provide the most bandwidth possible for all connected users. Which wireless feature and mode would be most appropriate for this access points (APs) used in this cafe? (Select all that apply.) MIMO 802.11ac 802.11n MU-MIMO

802.11ac MU-MIMO

An officer floor is requesting a new wireless network. Users are requesting faster data rates. Network administrators want to use wireless technology with the most individual channels to choose from and to worry less about wireless interference from other wireless technologies. Which of the following will the office most likely use? (Select all that apply.) 802.11n 802.11g 2.4 Ghz 5.0 Ghz

802.11n 5.0 Ghz

An officer floor is requesting a new wireless network. Users are requesting faster data rates. Network administrators want to use wireless technology with the most individual channels to choose from and to worry less about wireless interference from other wireless technologies. Which of the following will the office most likely use? (Select all that apply.) 802.11n 802.11g 2.4 Ghz 5.0 Ghz

802.11n 5.0 Ghz

What is the difference between a Wi-Fi analyzer and a spectrum analyzer?

A Wi-Fi analyzer is a software-based tool that interrogates the wireless adapter to display detailed information, based on what the Wi-Fi radio can receive. A spectrum analyzer uses dedicated radio hardware to report on frequency usage outside of Wi-Fi traffic, and so can be used more reliably to detect interference sources.

Which of the following would allow an 802.11n wireless channel to double its network bandwidth to 40 MHz with two adjacent 20 MHz channels? Mixed mode Channel Bonding MIMO MU-MIMO

Channel Bonding

A small section of the office is complaining about poor Wi-Fi signal. Which of the following tools have the capability to pinpoint the origin of the interference? Protocol analyzer Power meter Tone generator Spectrum analyzer

Spectrum analyzer

Your company has a lobby area where guest access is provided so that visitors can get Internet access. The open guest WLAN is currently connected to the production network. The only protection against visitors and hackers getting into the organization's data is file and directory rights. What steps should be taken to provide guest access and better protect the organization's data?

The guest WLAN should be connected to a separate network segment, isolated from the production network. Typically, this would be accomplished using a virtual LAN (VLAN) and a router/firewall to inspect and filter traffic using the Internet link. You could configure a captive portal so that users must register before accessing the WLAN. You could also change to using PSK authentication, with the passphrase obtained from the receptionists.

A wireless systems administrator modifies a company's 802.11n network to increase bandwidth. The administrator employs a multiple input multiple output (MIMO) configuration of 3x3:2. Considering the administrator's selected MIMO notation, which option explains the selected configuration? The number of transmit antennas x the number of receive antennas : the number of channels bonded The number of recieve antennas x the number of transmit antennas : the number of channels bonded The number of receive antennas x the number of transmit antennas : the number of simultaneous transmit and receive streams The number of transmit antennas x the number of receive antennas : the number of simultaneous transmit and receive streams

The number of transmit antennas x the number of receive antennas : the number of simultaneous transmit and receive streams

An administrator responsible for implementing network coverage in a historical monument cannot install cabling in many areas of the building. What are some ways the administrator can take advantage of wireless distribution systems (WDS) to help? (Select all that apply.) A.To create a beacon B.To create a BSA C.To create an ESA D.To create a bridge

To create an ESA To create a bridge

What is the main difference between WPA and WPA2?

WPA2 supports a stronger encryption algorithm, based on the Advanced Encryption Standard (AES). AES is deployed within the Counter Mode with Cipher Block Chaining Message Authentication Code Protocol (CCMP). WPA uses the same RC4 cipher as WEP. WPA uses a mechanism called the Temporal Key Integrity Protocol (TKIP) to make it stronger than WEP, but WPA2 offers better security.

The lobby area of your office building has undergone a renovation, the centerpiece of which is a large aquarium in the middle of the room, separating a visitor seating and greeting area from the reception desks, where the AP facilitating guest Internet access is located. Since the renovation, many guests have been unable to connect to Wi-Fi from the seating area. Could the aquarium really be the cause, and what solution could you recommend?

Yes, a dense body of water could cause absorption and refraction of the radio waves, weakening the signal. You could ceiling mount the AP so that signals are less affected by the body of water. You could also add a second AP at the front of the lobby area to act as a repeater. For optimum performance, both APs should be ceiling-mounted, to preserve line of sight.

A consumer configures a new wireless router at home and only configures the 5 GHz band. Which wireless standard only works with this band? g ac n b

ac

A tech replaces a failed wireless router at a company. While waiting for the new router to arrive, an older router is put in place and will only provide speeds of 54 Mbps. Which wireless standard does the older router use? b n g ac

g

Users at a company use a mix of wireless devices (phones, tablets, laptops) that use either the 2.4 or 5 GHz spectrum. Considering the given wireless 802.11 standard, which one does the company utilize for their mobile devices? b g n a

n

The company issued a used company phone to a new employee. The phone is an older model that will not accept a subscriber identity module (SIM) card. This phone most likely supports which type of cellular technology? (Select all that apply.) LTE 3G GSM CDMA

3G CDMA

Which IEEE WLAN standards specify a data transfer rate of up to 54 Mbps?

802.11a and 802.11g.

What type of AP requires a wireless controller?

A lightweight or thin AP (or one working in thin mode).

A wireless AP (access point) is placed on a table on the corner of an office floor with many furniture items and cubicles. Which of the following is most likely causing a weak or loss of signal in some areas of the office? (Select all that apply.) Interference from a microwave AP is in the wrong location Furniture is absorbing the signal Signal reflection from a mirror

AP is in the wrong location Furniture is absorbing the signal

An administrator is testing the signal strength in a concrete building and measures a 12 dB loss between the office where the access point is located and the office next door. What is the cause of the decibel loss? A.Absorption B.Refraction C.Reflection D.EMI

Absorption

In terms of radio wave signals, which term describes the impact of thick walls and ceilings? Reflection Attenuation Absorption Refraction

Absorption

Which of the following are reasons why a client would unexpectedly disassociate from an access point? (Select all that apply.) A.Access Point Proximity B.MAC spoofing disassociation attack C.BYOD D.Interference

Access Point Proximity MAC spoofing disassociation attack Interference

An administrator is evaluating the wireless coverage in a conference hall. There are enough access points to provide for 25 clients per access point, but many users are finding the wireless network to be unresponsive and timing out requests. What could be causing this issue? (Select all that apply.) A.CCI B.ACI C.Overcapacity D.Bandwidth saturation

CCI - Co-channel interference ACI - Adjacent channel interference Bandwidth saturation

802.11 relies on a shared physical bus running at half-duplex. How does this standard manage contention? A.CSMA/CA B.ACK C.RTS D.CTS

CSMA/CA

A user submitted a ticket and reported that while they were on a business trip at the airport, they could not connect to the wireless. After researching the issue, the support technician realized the user never signed into the free wireless system that the airport provided. What kind of wireless system was set up at the airport? Spectrum Service Set Identifier (SSID) Captive portal Virtual private network (VPN)

Captive portal

While investigating an issue tied to authentication redirects, the network consultant discovers that the client is being redirected to an HTTP rather than an HTTPS site. What is the name of this issue? Channel utilization Disassociation Encryption protocol mismatch Captive portal

Captive portal

An administrator is configuring wireless coverage for a public library where visitors are not expected to have pre-existing accounts. What type of authentication should the administrator implement? A.WPA3-Personal B.Captive portal via HTTPS C.WPA3-Enterprise D.802.1X/EAP

Captive portal via HTTPS

What mechanism does RTS/CTS support?

Carrier sense multiple access with collision avoidance (CSMA/CA). Rather than try to detect collisions, a wireless station indicates its intent to transmit by broadcasting a Request To Send (RTS) and waits to receive a Clear To Send (CTS) before proceeding.

To increase wireless bandwidth in an office space, an engineer tests a few configurations. In doing so, the engineer learns that by manipulating the 20 MHz frequency a wireless product will obtain more bandwidth. Which of the following implementations refers to using this approach as a solution? Omnidirectional antenna Channel bonding MU-MIMO Unidirectional antenna

Channel Bonding

To increase wireless bandwidth in a large building, an engineer researches solutions. Which of the following implementations refers to using 40 MHz as a solution? Omnidirectional antenna Unidirectional antenna MU-MIMO Channel bonding

Channel bonding

Which of the following options does a wireless g access point NOT support? (Select all that apply.) 2.4 GHz frequency Channel bonding Multiple-Input-Multiple-Output (MIMO) 5.0 GHz frequency

Channel bonding Multiple-Input-Multiple-Output (MIMO) 5.0 GHz frequency

What options may be available for an 802.11n network that are not supported under 802.11g?

Channel bonding, Multiple-Input-Multiple-Output (MIMO), and use of either 2.4 GHz or 5 GHz frequency bands.

A network engineer realized the wireless access points were too close together, causing interference for users connecting to the wireless. The network engineer moved the wireless adapters slightly further apart, which seemed to have mitigated the issue. What best describes the issue the network engineer resolved? Security type Speed Service set identifier (SSID) Channel overlap

Channel overlap

Employees in a certain office area are complaining that it is difficult to browse the web while on wireless. The network engineer reconfigured the access point to a lesser-used frequency to limit the surrounding businesses' wireless issues. What is the most likely issue that the network engineer resolved? Frequency mismatch Distance Incorrect passphrase Channel utilization

Channel utilization

A new office building was constructed right outside a United States military. The building has a few wireless access points (APs) that must adhere to some federal regulations because of the building's locations. What regulation would the building management have to adhere to regarding these APs? Decrease the power output. Use maximum frequency power. Use maximum EIRP settings. 2.4 Ghz AP must use channel 14.

Decrease the power output.

An IT technician is installing wireless access points (APs) towards the back of a public food market next door to a small United States military base. Placing an AP nearest these markets may require some specific configurations that federal regulations may require. What regulation may the food market have to follow, so the government does not subpoena them? 2.4 Ghz AP must use channel 14. Decrease the power output. Use maximum EIRP settings. Use maximum frequency power.

Decrease the power output.

An administrator is managing a network that has become increasingly congested over time. To manage the congestion, the administrator opted to implement a layer 3 bandwidth management solution on switches and wireless access points. What solution did the administrator implement? A. IEEE 802.1p B. DiffServ C. Traffic shaper D. Expedited forwarding

DiffServ

An employee submitted a ticket stating that the wireless signal is only 10 strength at their desk, making it hard for the employee to browse the shared drive and internet. What would a network engineer completing a site survey be able to determine is the cause? Frequency mismatch Incorrect passphrase Distance Interference

Distance

A wireless administrator is troubleshooting dead zones in a building. Although the administrator used a heat map to determine the optimum position for access points (APs), some areas that should have coverage are showing complete signal loss, which is unusable to clients. What should the administrator check? (Select all that apply.) A.Throughput B.Antenna placement C.Antenna cable attenuation D.EIRP

EIRP Antenna placement Antenna cable attenuation

An administrator is configuring a wireless LAN (WLAN) extended service area. Which of the following will the administrator need to configure the same on each access point? (Select all that apply.) A.BSSID B.ESSID C.BSS D.Security information

ESSID Security information

A network consultant calculates the sum of the transmit power, antenna cable/connection loss, and antenna gain. What is the consultant trying to calculate? Captive port Received signal strength indicator (RSSI) Channel utilization Effective isotropic radiated power (EIRP)

Effective isotropic radiated power (EIRP)

True or false? To support client roaming within an extended service area, each access point must be configured with the same SSID, security parameters, and Wi-Fi channel.

False-the SSID and security parameters must be the same, but the access points should use different channels where their coverage overlaps.

True or False? Suppressing transmission of the WLAN beacon improves security.

False-the beacon cannot be suppressed completely because clients use it when connecting with the AP. Increasing the broadcast interval reduces network overhead, but it increases the time required to find and connect to the network.

Widget Corporation has provided wireless access for its employees using several APs located in different parts of the building. Employees connect to the network using 802.11g-compatible network cards. On Thursday afternoon, several users report that they cannot log on to the network. What troubleshooting step would you take first?

Following troubleshooting methodology, establish the scope of the problem early on in the process. In this case, check whether the problem machines are trying to use the same AP. If the problem is apparent across multiple APs, suspect a wireless controller disabling 802.11g compatibility mode.

A company is working on finalizing its purchase of unlocked phones for traveling sales agents. These agents will travel to major cities in different countries. They will purchase cellular time using SIM cards in these countries for business communication using voice services. What are the minimum cellular communications standards the phone must support? CDMA LTE GSM EV-DO

GSM

Which of the following are formats for 2G cellular communications? (Select all that apply.) A.EV-DO B.GSM C.CDMA D.HSPA+

GSM CDMA

A company offers paid mobile phone plans or reimbursement for personal phones used for company business. Employees need a phone that can use a subscriber identity module (SIM) card that the company will provide. What type of cellular technologies would the employee phones be most likely supporting? (Select all that apply.) GSM CDMA 3G LTE

GSM LTE

A small organization is securing their wireless network with Wi-Fi Protected Access 3 (WPA3) personal. What are some of the issues with this method of authentication? (Select all that apply.) A.Group authentication B.No accountability C.SAE D.PAKE

Group authentication No accountability

What protocol can an administrator configure in a wireless mesh network (WMN) to allow the stations to perform path discovery and forwarding between peers? A.MBSS B.IBSS C.HWMP D.BSSID

HWMP

An administrator is tasked with centralizing the configuration and management of access points (APs) across a network. What types of solutions could the administrator employ that function as a Wireless LAN Controller (WLC)? (Select all that apply.) A.Hardware B.Software C.Fat AP D.Wireless Mesh Network

Hardware Software

A wireless administrator is receiving reports that users cannot connect to the wireless network in certain areas of the building. What can the administrator use to locate dead zones? A.Heat map B.Site survey C.DRS D.Beacon

Heat map

A company technical support representative troubleshoots a wireless network. Users state that the wireless signal barely spans across a large auditorium. According to the owner's manual, the signal should go beyond the current space. Which of the following wireless properties is likely causing the signal problem? Incorrect antenna type Incorrect antenna placement Interference Frequency mismatch

Incorrect antenna placement

A network engineer is building out a new wireless network. The engineer installed outdoor weatherproof wireless antennas on the sides of two buildings to eliminate running a physical wire. The engineer uses omnidirectional antennas. When considering the implementation, which of the following describes the outcome of the connection? Interference Incorrect antenna placement Incorrect antenna type Distance limitation

Incorrect antenna type

A network consultant is conducting a wireless coverage analysis for the main office building. During the analysis, the consultant recognizes that there are locations in the building with weak or no WiFi signal. What issue is presented in this analysis? Insufficient wireless coverage Encryption protocol mismatch Channel overlap Site survey

Insufficient wireless coverage

Users report that when they move to certain areas of the office, their internet connection drops. The network engineer decides to complete a site survey and realizes what the issue may be. What may be the most likely issue causing internet connection drops for users? Speed Frequency mismatch Insufficient wireless coverage Interference

Insufficient wireless coverage

A wireless engineer implements a new Wi-Fi network organization. The engineer carefully planned the deployment of access points (APs) to maintain a configuration spacing of 25 MHz. Consider the given wireless network symptoms and determine which relates to the configured value. (Select all that apply.) Interference Frequency mismatch Channel overlap Absorption

Interference Channel overlap

A tech configures a medium-sized business to utilize an ad hoc approach when connecting wireless devices. These devices allow connections to and from each other. Review the following properties and determine which applies to an ad hoc topology. It uses a basic service set (BSS). It is grouped into an extended service set (ESS). It is able to roam in an extended service area (ESA). It uses an independent basic service set (IBSS).

It uses an independent basic service set (IBSS).

What standard(s) are intended to support 4G mobile wireless services?

Long Term Evolution (LTE) and LTE Advanced (LTE-A).

What is a heat map?

Output from a site survey plotting the strength of wireless signals and channel utilization in different parts of a building.

An IT engineer notices that wireless network performance is at an all-time low. After reviewing the wireless console settings, the engineer makes changes to eliminate device saturation. Which problem does the engineer address? Jitter Channel overlap Overcapacity Interference

Overcapacity

A network engineer is investigating a complaint where clients are claiming they are having difficulties connecting to the WLAN. Which of the following should be confirmed for accuracy when attempting to connect to the WLAN? Encryption protocol mismatch Passphrase Effective isotropic radiated power (EIRP) Received signal strength indicator (RSSI)

Passphrase

You are planning WLAN for an office building with an attached warehouse. Where would you recommend placing Wi-Fi antennas for the best coverage in an office full of cubicles as well as in the warehouse?

Placing omnidirectional antennas on the ceiling would provide the best coverage with good line-of-sight and reduced interference between the APs and stations. Depending on the height of the warehouse ceiling, you may need to obtain APs with downtilt antennas.

A network engineer is determining where an antenna should be installed on the businesses' property. What is the engineer considering when they refer to the orientation of the wave propagating from the antenna? Polarization Channel overlap Received signal strength indicator (RSSI) Effective isotropic radiated power (EIRP)

Polarization

What concept divides network functionality into the control plane, the data plane, and the management plane to allow fine-grained control over traffic parameters? A. QoS B. CoS C. RED D. RTT

QoS

In terms of radio wave signals, which term describes the bouncing of signals? Reflection Attenuation Absorption Refraction

Reflection

Which of the following terms relates to the bending of radio waves? Refraction Absorption Attenuation Reflection

Refraction

Which protocol uses Network Level Authentication (NLA) which requires the client to authenticate before a full remote session starts? A. Telnet B. Remote Desktop Protocol (RDP) C. Secure Shell (SSH) D. Virtual Network Computing (VNC)

Remote Desktop Protocol (RDP)

A computer has difficulty connecting to a wireless access point. What common wireless properties does a user need knowledge of to properly access a Wi-Fi network? (Choose all that apply.) Security type Frequency SSID Passphrase

SSID Passphrase

The wireless access points (APs) on a large building floor have different names depending on the room. Employees and customers are confused and are constantly calling IT support to get the best wireless signal to work with as they constantly must change the AP connection. How can a network administrator improve wireless signals across the entire floor and provide a simple way to use the wireless network? Create ad hoc connections. Set limit on power output. Set up an extended service set (ESS). Use Wi-Fi 6 APs.

Set up an extended service set (ESS).

The wireless access points (APs) on a large building floor have different names depending on the room. Employees and customers are confused and are constantly calling IT support to get the best wireless signal to work with as they constantly must change the AP connection. How can a network administrator improve wireless signals across the entire floor and provide a simple way to use the wireless network? Set limit on power output. Use Wi-Fi 6 APs. Set up an extended service set (ESS). Create ad hoc connections.

Set up an extended service set (ESS).

An administrator is investigating issues with users experiencing minimal connectivity to the wireless network. The administrator has verified that the access point configurations and uptime are correct. However, the administrator suspects that there may be other issues causing the problem. What are some areas the administrator should investigate? (Select all that apply.) A.Signal strength B.Cabling C.Interference D.Power

Signal strength Interference

Users mention that in a certain part of a company building, the wireless signal is weak. Which areas should IT support investigate to help remedy the problem? (Select all that apply.) Signal-to-noise ratio Frequency mismatch Power level Channel overlap

Signal-to-noise ratio Power Level Channel overlap

A Wi-Fi router is unable to reach all users on the office floor due to radio interference. Which of the following tools have the capability to pinpoint the origin of the interference? Protocol analyzer Tone generator Power meter Spectrum analyzer

Spectrum analyzer

After replacing a wireless network adapter, users in the office have stopped complaining about issues transferring large files to the shared drive. What feature of the new wireless access point may have improved the user's experience? Security type Service set identifier (SSID) Speed Spectrum

Speed

What are the advantages of deploying a wireless mesh topology over an IBSS?

Stations in a wireless mesh network are capable of discovering one another, forming peering arrangements, and performing path discovery and forwarding between peers (routing). These factors make a mesh-based network more scalable than an ad hoc network or independent basic service set (IBSS).

Identify and select the protocol that will detect when a server crashes and will allow users to remotely authenticate with administrative privileges to routers and switches. A. Directory services B. Terminal Access Controller Access Control System (TACACS+) C. Remote Authentication Dial-in User Service (RADIUS) D. Lightweight Directory Access Protocol (LDAP)

Terminal Access Controller Access Control System (TACACS+)

The IEEE 802.11 standards use two frequency bands. Which of the following statements regarding the frequency bands are true? (Select all that apply.) A.The 2.4 GHz band is ideal for providing the longest signal range B.The 5 GHz band is ideal for providing the longest signal range C.The 2.4 GHz band supports a high number of individual channels D.The 5 GHz band supports a high number of individual channels

The 2.4 GHz band is ideal for providing the longest signal range The 5 GHz band supports a high number of individual channels

Which frequency band is less likely to suffer from co-channel interference?

The 5 GHz band.

What value is used as the BSSID?

The MAC address of the access point.

What configuration information is required on an access point to authenticate users joining the wireless network against a network authentication server?

The authentication method must be set to enterprise and the access point must be configured with the IP address and shared secret of the authentication (RADIUS or TACACS+) server.

Why might an attacker launch a disassociation attack against an access point?

This could be a simple denial of service (DoS) attack to prevent network access, but the attacker could also be attempting to use an evil twin/rogue AP to intercept network traffic.

Users in the corner of an office building cannot get good Wi-Fi reception. Your office manager doesn't want to use his budget to purchase a new AP. He's noticed that the power level control on the AP is set to 3 out of 5 and wants to know why turning up the power isn't the best solution?

This might work, but you should investigate the root cause of the issue and determine whether the solution will have adverse effects. The most obvious issue is that client stations might then be able to hear the AP but not be able to speak to it. Depending on the rest of the WLAN infrastructure, increasing power on one AP may cause more co-channel interference with other cells. A better solution will be to add an access point or to configure a wireless bridge using directional antennas.

Wi-Fi 6 uses complex modulation and signal encoding. Why did Wi-Fi 6 reinstate operation in the 2.4 GHz band? A.To approximate 10G connection speeds B.To improve the amount of data sent per packet C.To support IoT D.To reduce latency

To support IoT

True or False? Stations with 802.11ac capable adapters must be assigned to the 5 GHz frequency band.

True-802.11ac is designed to work only in the 5 GHz frequency band, with the 2.4 GHz band used for legacy clients.

A library user connected their tablet to the library's open access point. Which of the following items will NOT secure the open connection and protect the user's communications? A.Using a VPN B.Using HTTPS C.Using a screen protector D.Enabling SSL/TLS

Using a screen protector

A wireless installer is networking a conference room with 9' ceilings. What is the best type of antenna for wireless devices? A.Vertical rod B.Yagi C.Parabolic/dish or grid D.Polarization

Vertical rod

An administrator is implementing encryption on the wireless network. What standard should the administrator implement? A.TKIP B.WPA C.WEP D.WPA2

WPA2

A network administrator must install a new building floor with wireless access points (APs) to provide a wireless network to employees' mobile devices. The AP security settings will be hardened and use an Extensible Authentication Protocol (EAP) to allow users to authenticate with their user accounts to access the network securely. What is the minimum wireless protection required to install these APs properly? WPA-Enterprise WPA2-Enterprise WPA2-Personal WPA-Personal

WPA2-Enterprise

The manager would like to set up a temporary wireless network to connect a computer to the corporate office's network to show a presentation slide and video only accessible from the internal SharePoint. The device will only support a pre-shared key (PSK) authentication process. Which wireless network feature will provide the latest security that will not require integrating services with a local Active Directory (AD)? WPA-Personal WPA-Enterprise WPA2-Enterprise WPA2-Personal

WPA2-Personal

A manager wants to upgrade the wireless g network that provides Internet access to other mobile devices. If the manager wants to spend the least amount of money but increase wireless network speeds to the next level, which wireless technology should the next wireless router support? Wireless ac Wi-Fi 4 5G network Wi-Fi 6

Wi-Fi 4

A network administrator is setting up a new office room on a different floor of the building to support video conferencing sessions. The video systems will be utilizing a wireless network. Although the work budget is very small, the network must support two 2,167 Mbps streams over an 80 MHz 5 GHz band channel. What is the minimum wireless 802.11 standard access point (AP) a network administrator can purchase to stay close to budget while meeting the network requirements? Wireless g Wi-Fi 5 Wi-Fi 4 Wi-Fi 6

Wi-Fi 5

A wireless laptop at an organization is not able to access any internal network resources, but can browse the Internet. An IT support specialist finds the cause of the problem after examining the laptop. Based on the functionality, what does the specialist most likely conclude the cause to be? Incorrect antenna type Wrong service set identifier (SSID) Wrong passphrase Security type mismatch

Wrong service set identifier (SSID)

An IT technician needs to set up multiple outdoor antennas at a large farm to boost radio communication for its farmers. Which of the following antennas should the technician install that would require the least amount of maintenance throughout its lifecycle? Yagi antenna Parabolic grid antenna Torus antenna Static dish antenna

Yagi antenna