When we talk about TCP/IP, we are talking about a protocol suite designed as a layered approach and used to interconnect computing devices across the entire continent. Internet Protocol (IP) is like the epitome protocol of the entire TCP/IP protocol suite and helps in the delivery of services. This IP is encapsulated into an IP header before your message is sent. Having briefly discussed about the IP protocol and the encapsulation, here is where typical TCP/IP attacks occur.
Explanation:
- IP address spoofing – As mentioned above, IP is encapsulated into packet headers and inside of those headers are information such as IP source and destination addresses. IP source and destination addresses are needed by the routers to determine the best route path. If hackers can get access to the IP layer, they could easily spoof the source address and somehow make it pretend as if it was another legit host.
- TCP sequence number prediction attack– This is very common. TCT/IP protocol suite contains a three way handshake. For instance, when you do a web search, what is happening is that you are sending information to the server. The server will receive this info and send an acknowledgment receipt with the information it received back to you. You will then send an acknowledgment message to the server and communication will be established. In between this handshake, there is a sequence number called ISN that hackers are able to predict from their own host computers, and this sequence number could send malicious packets to impersonate another source host on a network.
- Port Scanning – It is not a technique used to directly launch an attack. However, hackers can use port scanning to scan a target network for exploitable open ports or listening servers.
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Answer: A) Policy
Explanation:
Security policy framework is the regulations that are links the information security of an organization with the professionals and business .It maintains the responsibilities and documentation with security .
- Policy is the document containing expectation,importance, requirement and scope of an organization about security .This security plan is high level document that need to be approved by higher management for implementation in company.
- Other options are incorrect because standard principles, guidelines in form of regulation and procedure is the manner that is not required for to be permitted by higher management for being implemented on the business organization.
- Thus the correct option is option(A).
Answer:
Explanation:
The answer should be 1.16 or 61.1
Answer:
Insertion sort is a simple sorting algorithm that builds the final sorted array (or list) one item at a time. It is much less efficient on large lists than more advanced algorithms such as quicksort, heapsort, or merge sort. However, insertion sort provides several advantages:
Simple implementation: Jon Bentley shows a three-line C version, and a five-line optimized version[1]
Efficient for (quite) small data sets, much like other quadratic sorting algorithms
More efficient in practice than most other simple quadratic (i.e., O(n2)) algorithms such as selection sort or bubble sort
Adaptive, i.e., efficient for data sets that are already substantially sorted: the time complexity is O(kn) when each element in the input is no more than k places away from its sorted position
Stable; i.e., does not change the relative order of elements with equal keys
In-place; i.e., only requires a constant amount O(1) of additional memory space
Online; i.e., can sort a list as