Answer:
Option (C) is the correct answer of this question.
Explanation:
Smart card is the security administrator wishes to implement two-factor authentication to improve security.Normally this data is affiliated with either meaning, information, or both, and will be stored and transmitted within the chip of the card.A smart card, usually a Chip Card type.
- It is a flexible card that holds an integral computer chip that preserves and sends a signal data, either database or semiconductor form.
- Used for controlling access to a resource.
- Data authentication, encryption, cloud storage, and software processing can be established by smart cards.
Other options are incorrect.
Attackers frequently use ACK scans to circumvent a firewall or other filtering tools. During a NULL scan, all packet flags are enabled. The most recent versions of Nessus Server and Client are compatible with Windows, Mac OS X, FreeBSD, and the vast majority of Linux variants.
<h3>What is ack scan ?</h3>
- ACK scans are used to identify hosts or ports that have been blocked or are resistant to other types of scanning. An attacker uses TCP ACK segments to learn about firewall or ACL configuration.
- Attackers probe our router or send unsolicited SYN, ACK, and FIN requests to specific UDP/TCP ports.
- TCP ACK Scan sends an ACK message to the target port to determine whether or not it is filtered.
- On unfiltered ports, a RST reply packet will be sent for both open and closed ports. Filtered ports will either generate no response or generate an ICMP reply packet with an unreachable destination.
- The TCP ACK scanning technique attempts to determine whether a port is filtered by using packets with the ACK flag set.
To learn more about ask scan refer to:
brainly.com/question/13055134
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{{5,10,15,20},{25,30,35,40}} is answer where zero is not found.
<u>Explanation:</u>
This program finds zero in giving as arrays of value as a parameter. The program has two loop. One is a row of the array and the other is column loop for each row o an array. For loop is created with a variable namer row and the loop ends with a length of the array of each row.
In side row for loop col loop is created and loop ends with each row-column length of cells. If data in each cell i.e (row, col) calue is zero it returns true and the loop is terminated immediately.
In case if the value of the cell doesn’t found zero it never terminates the loop and continuous loop and returns a false value. Find Zero functions accept the two-dimensional array and check whether cell value is zero. If it is zero found return true otherwise it returns false.
Answer:
See the constructed 12-bit adder/subtractor from the components below
Explanation:
