Which JSON syntax is valid?

• A.Option A
• B.Option B
• C.Option C
• D.Option D

Comment: *

Name: *

Email: *

Verification: *

Which data modeling language is commonly used by NETCONF?

• A.HTML
• B.XML
• C.YANG
• D.REST

Comment: *

Name: *

Email: *

Verification: *

Which router is elected the IGMP Querier when more than one router is in the same LAN segment?

• A.The router with the shortest uptime
• B.The router with the lowest IP address
• C.The router with the highest IP address
• D.The router with the longest uptime

Comment: *

Name: *

Email: *

Verification: *

A wireless consultant is designing a high-density wireless network for a lecture hall for 1000 students Which antenna type is recommended for this environment?

• A.sector antenna
• B.dipole antenna
• C.parabolic dish
• D.omnidirectional antenna

Correct Answer: D

Explanation
Directional antennas Directional antennas come in many different styles and shapes. An antenna does not offer any added power to the signal; it simply redirects the energy it receives from the transmitter. By redirecting this energy, it has the effect of providing more energy in one direction and less energy in all other directions. As the gain of a directional antenna increases, the angle of radiation usually decreases, providing a greater coverage distance but with a reduced coverage angle. Directional antennas include patch antennas and parabolic dishes. Parabolic dishes have a very narrow RF energy path, and the installer must be accurate in aiming these types of antennas at each other.

Directional patch antenna
Reference:
https://www.cisco.com/c/en/us/products/collateral/wireless/aironet-antennas-accessories/product_data_sheet0918 Omnidirectional antennas An omnidirectional antenna is designed to provide a 360-degree radiation pattern. This type of antenna is used when coverage in all directions from the antenna is required. The standard 2.14-dBi "rubber duck" is one style of omnidirectional antenna.
Omnidirectional antenna
-> Therefore Omnidirectional antenna is best suited for a high-density wireless network in a lecture hall.

Comment: *

Name: *

Email: *

Verification: *

Drag and drop the Qos mechanisms from the left to the correct descriptions on the right

Correct Answer:

Explanation

Comment: *

Name: *

Email: *

Verification: *