Monthly Archives: April 2021

Last Updated on April 30, 2021 by Admin What are two hashing algorithms used with IPsec AH to guarantee authenticity? (Choose two.) MD5 SHA AES DH RSA Answers Explanation & Hints: The IPsec framework uses various protocols and algorithms to provide data confidentiality, data integrity, authentication, and secure key exchange. Two popular algorithms used to […]
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Last Updated on April 30, 2021 by Admin Which two statements describe remote access VPNs? (Choose two.) Remote access VPNs are used to connect entire networks, such as a branch office to headquarters. End users are not aware that VPNs exists. A leased line is required to implement remote access VPNs. Client software is usually […]
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Last Updated on April 30, 2021 by Admin What is a benefit of having users or remote employees use a VPN to connect to the existing network rather than growing the network infrastructure? security scalability cost savings compatibility Answers Explanation & Hints: A benefit of VPNs is scalability because organizations can use the Internet and […]
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Last Updated on April 30, 2021 by Admin What is the standard for a public key infrastructure to manage digital certificates? PKI NIST-SP800 x.503 x.509 Answers Explanation & Hints: The x.509 standard is for a PKI infrastructure and x.500 if for directory structures.​
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Last Updated on April 30, 2021 by Admin Which two statements correctly describe certificate classes used in the PKI? (Choose two.) A class 0 certificate is for testing purposes. A class 0 certificate is more trusted than a class 1 certificate. The lower the class number, the more trusted the certificate. A class 5 certificate […]
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Last Updated on April 30, 2021 by Admin What technology allows users to verify the identity of a website and to trust code that is downloaded from the Internet? asymmetric key algorithm digital signature encryption hash algorithm Answers Explanation & Hints: Digital signatures provide assurance of the authenticity and integrity of software codes. They provide […]
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Last Updated on April 30, 2021 by Admin What is a difference between symmetric and asymmetric encryption algorithms? Symmetric algorithms are typically hundreds to thousands of times slower than asymmetric algorithms. Symmetric encryption algorithms are used to authenticate secure communications. Asymmetric encryption algorithms are used to repudiate messages. Symmetric encryption algorithms are used to encrypt […]
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Last Updated on April 30, 2021 by Admin Why are DES keys considered weak keys? They are more resource intensive. DES weak keys are difficult to manage. They produce identical subkeys. DES weak keys use very long key sizes. Answers Explanation & Hints: Weak keys, whether part of an existing encryption algorithm or manually generated, […]
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Last Updated on April 30, 2021 by Admin One method used by Cryptanalysts to crack codes is based on the fact that some letters of the English language are used more often than others. Which term is used to describe this method? cybertext meet-in-the-middle frequency analysis known-plaintext Answers Explanation & Hints: Frequency analysis uses the […]
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Last Updated on April 30, 2021 by Admin Which cipher played a significant role in World War II? RC4 Caesar Enigma One-time pad Answers Explanation & Hints: The Enigma machine was an electromechanical encryption device that created the Enigma cipher and was developed during World War II. The device depended on the distribution of pre-shared […]
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