WGU C839V5/D334 ADDITIONAL PRACTICE QUESTIONS AND ANSWERS 2024/2025 SOLVED 100%;(VIEW AHEAD OF EXAM STUDY TIPS GUARANTEED SUCCESS)

WGU C839V5/D334 ADDITIONAL PRACTICE QUESTIONS AND ANSWERS 2024/2025 SOLVED 100%;(VIEW AHEAD OF EXAM STUDY TIPS GUARANTEED SUCCESS) The hash value in bits for MD5 is ____. A. 128 B. 160 C. 256 ANS- 128 Hashing involves taking a _____ length input and producing a _____ length output (message digest). A. fixed; fixed B. variable; fixed C. fixed; variable ANS- variable; fixed The hash value in bits for SHA-1 is ____. A. 128 B. 160 C. 256 ANS- 160 The hash value in bits for MD4 is ____. A. 128 B. 160 C. 256 ANS- 128 IPSec ______ mode involves "end-to-end" encryption; i.e. data remains encrypted from the time it leaves a sender's device to the time it arrives at the receiver's device. A. Tunnel B. Transport C. Trusted ANS- Transport IPSec ______ mode involves encryption from gateway to gateway, i.e. just through the public network space. A. Tunnel B. Transport C. Trusted ANS- Tunnel A security analyst on a local network using monitoring tools is likely to only be able to read contents of traffic encrypted using IPSec ______ mode. A. Tunnel B. Transport C. Trusted ANS- Tunnel Remember, with tunnel mode, encryption does not happen until just before it leaves the local network. Traffic likely remains unencrypted between the end user device and the local network boundary. _____ is a lightweight cryptography method for signing messages (MAC). It boasts a relatively undemanding hardware implementation (only ~3,333 gates required at 1MHz clock rate) making it suitable for IoT implementation. ANS- Chaskey Chaskey has a key size of _____ bits. A. 256 B. 128 C. 80 ANS- 128 A weakness of one-way hashing is that the same piece of plaintext will result in the same ciphertext unless _____ is applied. A. Salt B. Ash C. Ether ANS- salt The minimum recommended key size to use with RC4 is _____ bits. A. 40 B. 20 C. 64 ANS- 40 RC4 is a symmetric stream cipher with a variable key size up to a max of _____ bits. A. 256 B. 2048 C. 1024 ANS- 2048 _____ has a block size of 64 bits, key size of 56 bits, and 16 rounds of substitution & transposition. A. DES B. AES C. RC4 ANS- Data Encryption Standard (DES) A(n) _____ is a collection of precomputed hash values of actual plaintext passwords used for password cracking. A. initialization vector B. key pair C. rainbow table ANS- rainbow table _____ is a common x.509 certificate file type that is used with both PEM and DER formats. A. .crt B. .cer C. .der ANS- .cer _____ has a block size of 64 bits, key size of 112 bits, and 48 rounds of substitution & transposition. A. DES B. RSA C. 3DES ANS- Triple Data Encryption Standard (3DES) Key sizes used with the Advanced Encryption Standard (AES) include _____. _____, or _____. A. 10, 12, 14 B. 128, 192, 256 C. 32, 64, 80 ANS- 128, 192, 256 The Advanced Encryption Standard (AES) operates using _____ bit blocks. A. 128 B. 192 C. 256 ANS- 128 Skipjack is a symmetric block cipher that uses a ______ bit key. A. 64 B. 80 C. 112 ANS- 80 Enocoro operates with a key size of ______ bits and an initialization vector (IV) of _____ bits. A. 80; 80 B. 128; 64 C. 80; 64 ANS- 128-bit key size; 64-bit IV Skipjack has a block size of _____bits. A. 64 B. 80 C. 128 ANS- 64 PHOTON, SPONGENT, Lesamnta-LW, and Quark are examples of light-weight _____. A. hashing algorithms B. public-key algorithms C. symmetric block ciphers ANS- Light-weight hashing algorithms _____ has a block size of 64 bits, key size of 128 bits, and 17 rounds of substitution & transposition. A. RSA B. DSA C. IDEA ANS- IDEA _______ is a partially homomorphic crypto system that leverages prime number characteristics, operates with a bit variable key size, and 1 round. A. RSA B. Diffie-Hellman C. Chaskey ANS- RSA Blowfish and Twofish are both _____ ciphers with common key sizes of 128, 192, or 256 bits. A. symmetric block B. symmetric stream C. asymmetric ANS- Symmetric Block _____ is a symmetric block cipher that uses block sizes of 32, 64, or 128 bits and boasts a variable key size up to 2048 bits. A. RC2 B. RC4 C. RC5 ANS- RC5 Quark produces a hash value of _____bits. A. 128 B. 64 or 112 C. 80 or 128 ANS- 64 or 112 The block size used with XTEA is _____ bits. A. 56 B. 64 C. 80 ANS- 64 The key size used with XTEA is _____ bits. A. 128 B. 256 C. 2048 ANS- 128 Camelia is a _____. A. Hash Algorithm B. Symmetric block cipher C. Symmetric key exchange algorithm ANS- Symmetric block cipher RC6 can best be described as a _____. A. Lightweight Hash Algorithm B. Symmetric Stream Cipher C. Symmetric Block Cipher ANS- Symmetric Block Cipher RC2 has a block size of 64 bits and variable key size up to 128 bits. What is the minimum recommended key size to use when employing RC2? A. 1 B. 40 C. 64 ANS- 40 The light-weight symmetric steam cipher Mickey v2 operates with a key size of ______ bits and an initialization vector (IV) variable up to _____ bits. A. 80; 80 B. 64; 128 C. 128; 64 ANS- 80; 80 RC4 is a(n) _____. A. Symmetric block cipher B. Symmetric stream cipher C. Asymmetric algorithm ANS- Symmetric stream cipher An entity seeking to obtain a digital certificate must generate and submit a _____ request to a certificate authority to request the certificate. A. certificate binding B. certificate signing C. certificate initialization ANS- certificate signing request (CSR) ChaCha is a(n) _____. A. Symmetric block cipher B. Symmetric stream cipher C. Asymmetric algorithm ANS- Symmetric stream cipher RSA and DSA are both_____. A. Hash algorithms B. Symmetric stream ciphers C. Asymmetric algorithms ANS- Asymmetric algorithms ....................................................................................................... ............................................................................. .................................................................................................