CREST CPSA Exam Prep Questions and Answers 2024 QUESTION What is a hash collision? Answer: A Hash Collision Attack is an attempt to find two input strings of a hash function that produce the same hash result. Because hash functions have infinite input length and a predefined output length, there is inevitably going to be the possibility of two different inputs that produce the same output hash. QUESTION What is Ipsec. Answer: Internet Protocol Security (IPsec) is a secure network protocol suite that authenticates and encrypts the packets of data sent over an Internet Protocol network. QUESTION What are two modes of operation for IPsec. Answer: Host -to-Host and Tunnelling mode. QUESTION What does IKE stand for? Answer: Internet Key Exchange Answer: Answer: Answer: Answer: Answer: QUESTION What does the linux file permission of 777 mean everyone(owner, group, users) has read write and excuate of the file. QUESTION What is the definition of ACL? Access control list. QUESTION Common tool used on Microsoft operating system for managing process. Task Manager. QUESTION Where is the SAM file located? C:\Windows \System32 \drivers \etc\lmhosts.sam QUESTION What is an AS system. autonomous system QUESTION What is whois and what port ? Answer: a public Internet database that contains information about Internet domain names and the people or organisations that registered the domains. It is a source of information that can be used to exploit system vulnerabilities. port 43. QUESTION Name five DNS record. Answer: CNAME, SOA, A, AAAA, MX, HINFO QUESTION What does a cname record point to. Answer: A Canonical Name or CNAME record is a type of DNS record that maps an alias name to a true or canonical domain name. CNAME records are typically used to map a subdomain such as www or mail to the domain hosting that subdomain's content. QUESTION what does the mx record point to. Answer: an MX recored points to a A record QUESTION Difference between iterative and recurisve querys
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