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Articles on Trending Technologies
Technical articles with clear explanations and examples
What are the types of Intrusion Prevention System?
There are several types of intrusion prevention system which are as follows −Host-based IPS (HIPS) − A host-based IPS is one where the intrusion-prevention application is local on that specific IP address, generally on a single device. HIPS compliments traditional finger-print-based and heuristic anti-virus detection approaches, because it does not need continuous upgrades to stay ahead of new malware.A comprehensive use of system resources can be a disadvantage of current HIPS, which integrate firewall, system-level action control and sandboxing into a coordinated disclosure net, on top of a traditional AV product.This extensive protection designs can be warranted for a laptop ...
Read MoreWhat is an Intrusion Prevention System in information security?
An Intrusion Prevention System is a network security device that monitors network and system activities for malicious or unwanted behavior and can react to block or avoid those activities.Network-based IPS will work in-line to monitor all network traffic for malicious program or attacks. When an attack is identified, it can drop the offending packets while still enabling all other traffic to pass. Intrusion prevention technology is treated by some to be a development of intrusion detection (IDS) technology.Intrusion Prevention Systems (IPS) derivative in the late 1990s to resolve ambiguities in passive network monitoring by locating detection systems in-line. Early IPS ...
Read MoreC++ program to find winner of ball removal game
Suppose we have four numbers n1, n2, k1 and k2. Consider there are 2 boxes, first one has n1 balls and second one has n2 balls. Amal and Bimal are playing the game. In one move they can take from 1 to k1 balls and throw them out, similarly second one will take 1 to k2 balls in his move. Amal starts the game and they plays alternatively. The one who cannot play his move will lose the game. We have to find who will be the winner.So, if the input is like n1 = 2; n2 = 2; k1 ...
Read MoreHow does the keep parameter work in the pandas series.drop_duplicates() method?
The drop_duplicate() method in the pandas series constructor is used to remove the duplicate values from a series object. This method cleans the duplicate values and returns a series with modified rows, and it won’t alter the original series object. Instead, it will return a new one.One of the important parameters in the drop_duplicates() method is “Keep”, the default value of this parameter is “first” which keeps the first occurrence value and deletes the remaining. We can also specify Last and False values to the keep parameter.If keep=False, it will delete all duplicate values. Or if keep= “Last”, it deletes ...
Read MoreC++ program to find minimum how much rupees we have to pay to buy exactly n liters of water
Suppose we have three numbers n, a and b. We want to buy n liters of water. There are only two types of water bottles nearby, 1-liter bottles and 2-liter bottles. The bottle of the first type a rupees and the bottle of the second type costs b rupees. We want to spend as few money as possible. We have to find the minimum amount of money we need to buy exactly n liters of water.So, if the input is like n = 7; a = 3; b = 2, then the output will be 9, because with 3 2-liter ...
Read MoreC++ Program to find minimum possible ugliness we can achieve of towers
Suppose we have an array A with n elements. Consider there are n block towers in a row. The ith tower has height A[i]. In a single day, we can perform the operation: Select two indices i and j (i != j) and move back from tower i to j. It will decrease A[i] by 1 and increase A[j] by 1. The ugliness of the buildings is max(A) − min(A). We have to find the minimum possible ugliness we can achieve.So, if the input is like A = [1, 2, 3, 1, 5], then the output will be 1, because ...
Read MoreC++ Program to find room status after checking guest appearance record
Suppose we have a string S with 'L', 'R' and digits from 0 to 9. Consider there is a hotel with 10 rooms they are numbered from 0 to 9, from left to right. The hotel has two entrances-one from the left side, and another from the right side. When a customer arrives to the hotel through the left entrance, they get an empty room closest to the left entrance. Similarly, when a customer arrives at the hotel through the right entrance, they get an empty room closest to the right entrance. But we have lost the room assignment list. ...
Read MoreC++ Program to find winner name of stick crossing game
Suppose we have two numbers n and k. Amal and Bimal are playing a game. The rules are simple. Amal draws n sticks in a row. After that the players take turns crossing out exactly k sticks from left or right in each turn. Amal starts the game. If there are less than k sticks on the paper before some turn, the game ends. Amal wins if he makes strictly more moves than Bimal. We have to find who will be the winner.So, if the input is like n = 10; k = 4, then the output will be Bimal. ...
Read MoreC++ Program to count number of operations needed to place elements whose index is smaller than value
Suppose we have an array A with n elements. We can perform these operations any number of times −Select any positive integer kSelect any position in the sequence and insert k into that positionSo, the sequence is changed, we proceed with this sequence in the next operation.We have to find minimum number of operations needed to satisfy the condition: A[i]
Read MoreC++ program to find length of non empty substring whose sum is even
Suppose we have an array A with n elements. We have to find the length of a non-empty subset of its elements such that their sum is even or return -1 when there is no such subset.So, if the input is like A = [1, 3, 7], then the output will be 2, because sum of [1, 3] is 4.StepsTo solve this, we will follow these steps −n := size of A for initialize i := 0, when i < n, update (increase i by 1), do: if A[i] mod 2 is same as 0, then: ...
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