Answer Explanation
There are many things to improve the security of business with the help of internet
- the pillars of business depends upon the information and internet provide security to these information.
- the computer or laptop which is used for business purpose are secure by internet
- we use hardware and software firewalls to protect the PC or laptop.
- we use antivirus to protect the system
- for runing the computer we uses software firewalls
- for protection purpose we use hardware firewalls
Answer:
a. false
b. true
c. false
Explanation:
a. False, for intra-domain routing distance vector protocol is simple to implement and because all the links have same speed, distance vector routing is better to use. Distance sector routing is simple and least cost-effective than link state routing.
b. True BGP stands for Broader Gateway Protocol and in AS, router uses BGP to decide the best path among multiple possible paths.
c. False, in BGP performance is more important than policy and hence BGP make decision based on shortest path from source to destination while OSPF uses Dijkstra algorithm to decide the shortest path and then works on this policy.
Answer:
You need 3 different IP subnets. -- d. 3
Explanation:
The devices in one VLAN are typically in the same IP subnet so you need one subnet for each VLAN.
Answer:
Using CSMA/CD to avoid collision.
Explanation:
If the channel is detected idle then the station does not transfer the second frame to avoid the collision by design of the CSMA/CD (Carrier sense multiple access / Collision detection). When received the protocol for first frame, a station to send second frame begins at step 2 rather than step1.
Explanation :
• Station A and Station B are transfers data frames, remain all not want to transmit data. In this situation, station A find the channel to be idle and send first frame then next second frame.
• Similarly B received the transfer data at the same time. Then leads to collision.
• Using CSMA/CD to avoid collision.
