St.JOSEPH'S CISCO IDEATHON PREPARATION TEST @ 20/6/24

A network administrator is required to upgrade wireless access to end users in a building. To provide data rates up to 1.3 Gb/s and still be backward compatible with older devices, which wireless standard should be implemented?

• • 802.11ac

• • 802.11n

• • 802.11g

• • 802.11b

A technician is about to install and configure a wireless network at a small branch office. What is the first security measure the technician should apply immediately upon powering up the wireless router?

• • Change the default user-name and password of the wireless router.

• • Disable the wireless network SSID broadcast.

• • Enable MAC address filtering on the wireless router.

• • Configure encryption on the wireless router and the connected wireless devices.

A network engineer is troubleshooting a newly deployed wireless network that is using the latest 802.11 standards. When users access high bandwidth services such as streaming video, the wireless network performance is poor. To improve performance the network engineer decides to configure a 5 Ghz frequency band SSID and train users to use that SSID for streaming media services. Why might this solution improve the wireless network performance for that type of service?

• • The 5 GHz band has more channels and is less crowded than the 2.4 GHz band, which makes it more suited to streaming multimedia.

• • Requiring the users to switch to the 5 GHz band for streaming media is inconvenient and will result in fewer users accessing these services.

• • The 5 GHz band has a greater range and is therefore likely to be interference-free.

• • The only users that can switch to the 5 GHz band will be those with the latest wireless NICs, which will reduce usage.

Which three parameters would need to be changed if best practices are being implemented for a home wireless AP? (Choose three.)

• • wireless network password

• • AP password

• • SSID

• • wireless beacon time

Which type of wireless network is based on the 802.11 standard and a 2.4-GHz or 5-GHz radio frequency?

• • wireless local-area network

• • wireless metropolitan-area network

• • wireless wide-area network

• • wireless personal-area network

A technician is troubleshooting a slow WLAN that consists of 802.11b and 802.11g devices. A new 802.11n/ac dual-band router has been deployed on the network to replace the old 802.11g router. What can the technician do to address the slow wireless speed?

• • Split the wireless traffic between the 802.11n 2.4 GHz band and the 5 GHz band.

• • Update the firmware on the new router.

• • Configure devices to use a different channel.

• • Change the SSID.

The company handbook states that employees cannot have microwave ovens in their offices. Instead, all employees must use the microwave ovens located in the employee cafeteria. What wireless security risk is the company trying to avoid?

• • accidental interference

• • improperly configured devices

• • rogue access points

• • interception of data

A laptop cannot connect to a wireless access point. Which two troubleshooting steps should be taken first? (Choose two.)

• • Ensure that the wireless NIC is enabled.

• • Ensure that the wireless SSID is chosen.

• • Ensure that the correct network media is selected.

• • Ensure that the NIC is configured for the proper frequency.

A company has recently implemented an 802.11n wireless network. Some users are complaining that the wireless network is too slow. Which solution is the best method to enhance the performance of the wireless network?

• • Split the traffic between the 2.4 GHz and 5 GHz frequency bands.

• • Disable DHCP on the access point and assign static addresses to the wireless clients.

• • Replace the wireless NICs on the computers that are experiencing slow connections.

• • Upgrade the firmware on the wireless access point.

A network administrator is working to improve WLAN performance on a dual-band wireless router. What is a simple way to achieve a split-the-traffic result?

• • Make sure that different SSIDs are used for the 2.4 GHz and 5 GHz bands.

• • Add a Wi-Fi range extender to the WLAN and set the AP and the range extender to serve different bands.

• • Check and keep the firmware of the wireless router updated.

• • Require all wireless devices to use the 802.11n standard.