Answer:
01001001?01110111?01100001?01111001?00100000?01101001?01101011?01100101?01101100?01100001?01111001?00100000?01110101?01101110?01100001?01101100?01100001?01111001?00101110
Answer:
The problems or risk when using a WiFi is that, hackers often have the ability to position themselves between the user and the end point connection. and once these hackers gains access to your information and privacy, u might lose important documents or contents.
It is of utmost importance that when an end user is using a public WiFi as a WAN, he/she must ensure to browse with VPN turned on, and the sharing options turned off.
Explanation:
Solution
One of the biggest risk with public WiFi is the ability or capacity for hackers to position themselves between you (user) and the point of connection. so instead of communicating directly with the hotpot, at several times you end up sending your information to the hacker.
The hacker also have access or privileges to every information you send out such as credit card information, emails and so on. once the hacker gains access to that information, you run into trouble.
As an end user when making use of public WiFi to ensure to browse with VPN (Virtual private Network) on and turned off sharing options
Answer:
A lookaside buffer translation (TLB) is a memory cache that reduces the time it takes to access a user memory place. TLB includes the most lately used page table entries.
TLB is used to overcome the issue of sizes at the time of paging. Page Table Entry (PTE) is used for framing the memory ,but it uses two references one for finding the frame number
and the other for the address specified by frame number.
<u>Formula for finding effective memory access time-</u>
Effective Memory Access Time = (TLB access_time+Memory Access Time)*hit ratio + (TLB access_time+2*Memory Access Time)*(miss ratio)
Given in question,
Hit ratio = 0.90
Memory Access Time = 150ns
TLB access time= 5ns
Effective Memory Access Time = (TLB access_time+Memory Access Time)*hit ratio + (TLB access_time+2*Memory Access Time)*(miss ratio)
=(5+150) * 0.90 + (5+2*150)*(1-0.90)
=155 * 0.90 + (305*0.1)
=139.5 + 30.5
= 170ns
The correct answer is a group of personal computers located in the same general area and connected by a common cable.
