Question

1. How does Wireless Ethernet architecture, prevents the hidden node problem?
   1. Ding real time transmission
   2. Handshaking after transmission of data
   3. Handshaking before transmission of data
   4. Acknowledgement of every packet transmitted

2. What is the purpose of the Network Address Translation (NAT)?

1. To divide the network into subnet works
2. To receive all data sent to private networks
3. Allow private IP addresses to work
4. Convert private IP addresses to public IP addresses

3. The binary number 1011111 is equivalent to which decimal number below

1. 125
2. 65
3. 128
4. 95

4. Which word or phrase below best describes a subnet mask

1. A thing you put on your face
2. A filter
3. Creates the IP address for the network
4. Determines the path of data to the sub-network

5. The packet by which data is transmitted on ethernet architecture is called a frame. How many bytes is the length of that frame?
   1. 47 – 1500 bytes
   2. 46 – 1500 bits
   3. 46 – 1500 bytes
   4. Too many bytes to count

6. In ethernet architecture the most common topology used is
   1. Bus
   2. Extended star
   3. Wireless
   4. star

Answer 1

1) option C is the correct answer. The wireless ethernet architecture prevents the hidden node problem by hand shaking before transmission of data. The wireless ethernet architecture is the best method for two way communication.

2) option C is the correct answer.NAT stands for network address translation. The purpose of NAT is to allow a private IP network which have unregistered IP address to connect to the internet easily. That means it allows private IP addresses to work.

3) option d is the correct answer. The decimal equivalent of the binary number 1011111 is 95.

4) option C is the correct answer. Subnet Mask is a numerical number which assigns the range of IP address for a given network. Therefore we can say it creates the IP addresses for the network.

5) option C is the correct answer. Size of the frame in Ethernet data transmission is 45-1500 bytes.

6) option A is the correct answer. The most common topologies used in Ethernet network is a bus topology. Star topology is also good choice for operation in Ethernet connection.