Suppose we have n+m servers, of which nn have Intel CPUs and mm have AMD CPUs. Suppose also that Intel CPUs are vulnerable to a ping attack that remotely crashes the server, but AMD CPUs are not. If we pick a server at random and ping it, what is the probability that at least k pings are needed to produce a crash?

Consider bandwidth between client and server is 1MBps (125 kbytes/s or can send no more than 125 kbytes of data in one second ☺).    Now, consider two cases: HTTP 1.0 requesting two images one by one and HTTP 1.1 requesting two imagines in parallel/pipeline.   Both images are 125 kbytes long.    How long it will take for the client to retrieve images in each case (you can ignore all other delays, only focus on transmission delay).

Skype is a well‑known VoIP system used not only for peer‑to‑peer conversations but also for audio and video conferencing involving three or more callers. Assume a video conference with a central server on Skype has N callers, and each caller generates a constant data stream at rate r bps. How many bits per second does the call initiator need to send?  How many bits does each of other N‑1 callers need to send?

My colleague, Dr. Strange tells me that there is an alternate universe where Sydney buses are never cancelled and they always run on time; in fact, bus timetables specify to the second the exact arrival and departure time of each bus on each stop. Sadly, in this alternate reality there are no free transfers (i.e., you need to pay for the full fare of every bus you ride) and different bus lines charge different fees (but the good news is that the fee is flat and does not depend on distance travelled). A travel plan is a sequence of stop-time pairs where stop is a location of a bus stop and time is when we arrive at that stop. The plan is feasible if for any two consecutive pairs (a, t) and (b, t′) in the plan there exists a bus that departs after t and arrives at b at exactly t′. That is, a travel plan does not allow us to walk between stops. Assuming that no two buses arrive at the same time at the same stop, a feasible plan uniquely identifies the bus lines that we need to take to…

Https is a protocol used to secure websites from being tampered with by other parties without proper authorization. it bridges the gap between sender and receiver.Using protocols like secure socket layer/TLS, HTTPS encrypts data sent over the internet, making it unreadable to anybody who shouldn't have it.This prevents a "man in the middle" assault on the system.Such assaults intercept messages before they reach their intended recipient.It then transmits the revised information to the user.It guarantees the server's authenticity, too.

A local area network (LAN) makes use of something called a hub. Is there a route out of the collision zone that we don't have to go into? In the event that this is the case, could you kindly elaborate? In the event that this is not possible, what alternative types of technology are available, and how do they function?

Suppose we have four machines that are using the Berkeley algorithm for clock synchronization. The time daemon is running on machine MO. The other machines are named M1, M2, and M3. The time readings on the four machines are as follows wenty-four hour clocks are usedt. MO 09:10 M1: 08:30 M2 10:10 M3: 07:14 In the third step of the algorithm, what are the values that the time daemon sends to each machine? Assume that the time values are expressed in minutes. Below, these values are presented in a vector value sent to MO, value sent to MI, value sent to M2. value sent to M3I none of these O84, 44, 96, 321 O(24, 16, -84, 92) O192. 84, 16. -24 O-32, 76, 40

The token bucket algorithm is a popular method for traffic shaping. A computer uses a token bucket with acapacity of 400 megabytes (MB) and a rate of 10 MB/sec. The computer continuously generates20 MB/sec for transmission from time 0. Assume the bucket’s water level is 200 MB at time 0.1a. How long will it take to send 1000 MB? Show the steps.1b. Draw a figure showing how the bucket’s water level evolves

There are many sensors on a wind turbine, based on each sensor's reading many alerts are generated as (start, end). For easier monitoring, our customer is asking to raise alerts on the turbine level instead of on each sensor. If any sensor is having an alert, there should be an alert for the entire wind turbine. Suppose the alerts created with two sensors readings are [(0,3),(5,10),(1,4),(10,15)], then the turbine level alert should be [(0,4),(5,15)]. Return the alerts sorted by the start timestamp. If there is no alert from the sensor level, return an empty array []. Code needs to be in Python?

6.4-4. Self Learning Switches (a). Consider the network below with six nodes, star-connected into an Ethernet switch. Suppose that A sends a frame to A, A' replies to A, then B sends a message to B' and B' replies to B. Enter the values that are present in the switch's forwarding table after B'-to-B frame is sent and received. Assumed that the table is initially empty and that entries are added to the table sequentially. Answer the questions below from the pulldown list. C' B' S A 3 A' B What is the first entry added to the table? [Choose ] [Choose ] B,2 What is the second entry added to the table? C,6 What is the third entry added to the table? What is the fourth entry added to the table? C,3 A,4 B₁,5 A,1 [Choose ] <