Daily CISSP certification common mistakes (April 13, 2022)

CISSP Certification is often wrong （ From Mingxue online test platform ：https://www.maxstu.com/page/1773704）

【 The answer is after the question 】

subject 1
Q：Mike There's a flash card he wants to reuse . The card contains sensitive information . What technology can he use to safely delete data from the card and allow it to be reused ？
Mike has a flash memory card that he would like to reuse. The card contains sensitive information. What technique can he use to securely remove data from the card and allow its reuse?
A、 Degaussing  
Degaussing 
B、 Physical damage  
Physical destruction
C、 Encryption crushing
Crypto shredding 
D、 Reformat
Reformatting

subject 2
Q：Kristen Want to use multiple sites to process her data , But I don't want to pay for a complete data center . If she wants to be able to quickly migrate some custom application environments to multiple countries / Facilities in the area , Without waiting to ship or buy hardware , Which of the following would you recommend as her best choice ？
Kristen wants to use multiple processing sites for her data, but does not want to pay for a full data center. Which of the following options would you recommend as her best option if she wants to be able to quickly migrate portions of her custom application environment to facilities in multiple countries without having to wait to ship or acquire hardware?
A、 cloud PaaS supplier
A cloud PaaS vendor
B、 Hosted data center provider
A hosted data center provider
C、 cloud IaaS supplier
A cloud IaaS vendor
D、 Provide rack 、 Data center provider of power supply and remote operation services
A data center vendor that provides rack, power, and remote hands services

subject 3
Q： Open shortest path first (OSPF) The protocol is a routing protocol , Maintain the mapping of all connected remote networks , And use this mapping to select the shortest path to the remote destination . What type of routing protocol is OSPF？
The Open Shortest Path First (OSPF) protocol is a routing protocol that keeps a map of all connected remote networks and uses that map to select the shortest path to a remote destination. What type of routing protocol is OSPF?
A、 Link state
Link state
B、 Shortest path first
Shortest path first
C、 Link mapping  
Link mapping 
D、 Distance vector
Distance vector
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subject 1
answer ：C
analysis ：Mike Encryption should be used , This is a secure data destruction process to protect this device . Although degaussing is an effective secure data deletion Technology , But in this case, it won't work , Because degaussing is only applicable to magnetic media . Physical damage will make the equipment unusable . Reformatting is not a valid safe data deletion technique .
Mike should use crypto shredding, a secure data destruction process to protect this device. While degaussing is a valid secure data removal technique, it would not be effective in this case, since degaussing works only on magnetic media. Physical destruction would prevent the reuse of the device. Reformatting is not a valid secure data removal technique.

subject 2
answer ：C
analysis ： cloud IaaS The supplier will allow Kristen Set up infrastructure and pay for it as soon as possible .PaaS The platform provided by the supplier requires her to migrate custom applications to the platform , This may take longer than hosting data center providers . One company provides racks 、 Data center suppliers with power supply and remote operation assistance cannot meet the demand , because Kristen Don't want to buy or ship hardware .
A cloud IaaS vendor will allow Kristen to set up infrastructure as quickly as she can deploy and pay for it. A PaaS vendor provides a platform that would require her to migrate her custom application to it, likely taking longer than a hosted data center provider. A data center vendor that provides rack, power, and remote hands assistance fails the test based on Kristen’s desire to not have to acquire or ship hardware.

subject 3
answer ：A
analysis ：OSPF It's link state protocol . The link state protocol maintains the path of all connected networks , And the shortest path to the remote network is preferred for service . The distance vector protocol will map to the remote network by hopping , The shortest path first and link mapping are not the types of routing protocols .
OSPF is a link state protocol. Link state protocols maintain a topographical map of all connected networks and preferentially select the shortest path to remote networks for traffic. A distance vector protocol would map the direction and distance in hops to a remote network, whereas shortest path first and link mapping are not types of routing protocols.