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NEW QUESTION 38
Fill in the blank with the appropriate term. ______________ encryption is a type of encryption that uses two
keys, i.e., a public key and a private key pair for data encryption. It is also known as public key encryption.
Asymmetric encryption is a type of encryption that uses two keys, i.e., a public key and a private key pair for
data encryption. The public key is available to everyone, while the private or secret key is available only to the
recipient of the message. For example, when a user sends a message or data to another user, the sender
uses the public key to encrypt the data. The receiver uses his private key to decrypt the data.
NEW QUESTION 39
John wants to implement a firewall service that works at the session layer of the OSI model. The firewall must also have the ability to hide the private network information. Which type of firewall service is John thinking of implementing?
- A. Packet Filtering
- B. Circuit level gateway
- C. Stateful Multilayer Inspection
- D. Application level gateway
NEW QUESTION 40
Fill in the blank with the appropriate term. The ___________ protocol is a feature of packet-based data
transmission protocols. It is used to keep a record of the frame sequences sent and their respective
acknowledgements received by both the users.
The Sliding Window protocol is a feature of packet-based data transmission protocols. It is used in the data link
layer (OSI model) as well as in TCP (transport layer of the OSI model). It is used to keep a record of the frame
sequences sent, and their respective acknowledgements received, by both the users. Its additional feature
over a simpler protocol is that can allow multiple packets to be “in transmission” simultaneously, rather than
waiting for each packet to be acknowledged before sending the next.In transmit flow control, sliding window is
a variable-duration window that allows a sender to transmit a specified number of data units before an
acknowledgment is received or before a specified event occurs.An example of a sliding window is one in
which, after the sender fails to receive an acknowledgment for the first transmitted frame, the sender “slides”
the window, i.e., resets the window, and sends a second frame. This process is repeated for the specified
number of times before the sender interrupts transmission. Sliding window is sometimes called
acknowledgment delay period.
NEW QUESTION 41
Which of the following are the six different phases of the Incident handling process? Each correct answer represents a complete solution. Choose all that apply.
- A. Recovery
- B. Containment
- C. Post mortem review
- D. Eradication
- E. Identification
- F. Lessons learned
- G. Preparation
Following are the six different phases of the Incident handling process:
1.Preparation: Preparation is the first step in the incident handling process. It includes processes like backing up copies of all key data on a regular basis, monitoring and updating software on a regular basis, and creating and implementing a documented security policy. To apply this step a documented security policy is formulated that outlines the responses to various incidents, as a reliable set of instructions during the time of an incident.
The following list contains items that the incident handler should maintain in the preparation phase i.e. before an incident occurs:
Establish applicable policies
Build relationships with key players
Build response kit
Create incident checklists
Establish communication plan
Perform threat modeling
Build an incident response team
Practice the demo incidents
2.Identification: The Identification phase of the Incident handling process is the stage at which the Incident handler evaluates the critical level of an incident for an enterprise or system. It is an important stage where the distinction between an event and an incident is determined, measured and tested.
3.Containment: The Containment phase of the Incident handling process supports and builds up the incident combating process. It helps in ensuring the stability of the system and also confirms that the incident does not get any worse.
4.Eradication: The Eradication phase of the Incident handling process involves the cleaning-up of the identified harmful incidents from the system. It includes the analyzing of the information that has been gathered for determining how the attack was committed. To prevent the incident from happening again, it is vital to recognize how it was conceded out so that a prevention technique is applied.
5.Recovery: Recovery is the fifth step of the incident handling process. In this phase, the Incident Handler places the system back into the working environment. In the recovery phase the Incident Handler also works with the questions to validate that the system recovery is successful. This involves testing the system to make sure that all the processes and functions are working normal. The Incident Handler also monitors the system to make sure that the systems are not compromised again. It looks for additional signs of attack.
6.Lessons learned: Lessons learned is the sixth and the final step of incident handling process. The Incident Handler utilizes the knowledge and experience he learned during the handling of the incident to enhance and improve the incident-handling process. This is the most ignorant step of all incident handling processes. Many times the Incident Handlers are relieved to have systems back to normal and get busy trying to catch up other unfinished work. The Incident Handler should make documents related to the incident or look for ways to improve the process.
Answer option C is incorrect. The post mortem review is one of the phases of the Incident response process.
NEW QUESTION 42
An attacker uses different types of password cracking techniques to crack the password and gain unauthorized access to a system. An attacker uses a file containing a list of commonly used passwords. They then upload this file into the cracking application that runs against the user accounts. Which of the following password cracking techniques is the attacker trying?
- A. Rainbow table
- B. Bruteforce
- C. Dictionary
- D. Hybrid
NEW QUESTION 43
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