Acompany jus has completed vulnerability scan of its servers. a legacy application that monitors the hvac system in the datacenter presents several challenges, as the application vendor is no longer in business. which of the following secure network architecture concepts would best protect the other company servers if the legacy server were to be exploited? a. virtualization
b. air gap
c. vlan
d. extranet

correct option is c. VLAN

Explanation:

we know here company complete vulnerability scan

and A legacy application that monitors the HVAC system and there application vendor is no longer in business

so BEST protect the other company servers if the legacy server were to be exploited is virtual LAN (VLAN) because

VLAN  is any broadcast domain that is partition

and it is isolated in a computer network at data link layer

virtual LAN is used to separate traffic within the business due to users because virtual LAN allow networks and devices that kept it separate to share the same physical cabling by not interact and improve simplicity and security and  traffic management and economy

so correct option is c. VLAN

(1) 700 pizzas

(2) Its revenue increases by $2600.

Explanation:

Given that,

price elasticity of demand for his pizza = -4

Percentage change in price = 10%

Initial Quantity, = 500 Pizzas

Elasticity of demand =

-4 =

= -4 × 0.1

= 0.4

= 0.4

∴ = 700

Initial price, = $20

Changed price, = $18

Revenue at t = 0

= 500 × 20 =$10000

Revenue at t = 1

= 700 × 18 = $12600

Therefore, from the above calculations it was seen that his revenue increases by ($12600 - $10000)= $2600 and its sales increases to 700.