Answer: Eight
Explanation:
A class B address is 255.255.0.0. We need to borrow 8 bits from the network portion to have atleast 130 host per subnet.
11111111.00000000.00000000.00000000
Answer:
a. backdoor
backdoor (also called a trapdoor) is a programming routine built into a system by its designer or programmer. It enables the designer or programmer to bypass system security and sneak back into the system later to access programs or files.
Answer:
c. nbtstat -a 193.145.85.202
Explanation:
Nbtstat is a TCP/IP utility which is used to display the current connections and statistics of TCP/IP using NetBIOS over TCP/IP (NetBT).
It is installed on a computer running Microsoft Windows when the TCP/IP protocol stack is installed.
Also, it is very useful when we want to troubleshoot NetBIOS name resolution problems.
One can run nbtstat -a < ComputerName > to obtain the local NetBIOS name table on <ComputerName> and its MAC address
There are 6 octects ( 8 bit numbers ) in a MAC address, so there's 256^6 possible addresses.