1|Page
WGU C839V5/D334 EXAM WITH CORRECT ACTUAL
QUESTIONS AND CORRECTLY WELL DEFINED ANSWERS
LATEST ALREADY GRADED A+ 2026
The hash value in bits for MD5 is ____.
A. 128
B. 160
C. 256 ......ANSWER......128
Hashing involves taking a _____ length input and producing a _____
length output (message digest).
A. fixed; fixed
B. variable; fixed
C. fixed; variable ......ANSWER......variable; fixed
The hash value in bits for SHA-1 is ____.
A. 128
B. 160
C. 256 ......ANSWER......160
The hash value in bits for MD4 is ____.
A. 128
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B. 160
C. 256 ......ANSWER......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 ......ANSWER......Transport
IPSec ______ mode involves encryption from gateway to gateway, i.e.
just through the public network space.
A. Tunnel
B. Transport
C. Trusted ......ANSWER......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 ......ANSWER......Tunnel
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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. ......ANSWER......Chaskey
Chaskey has a key size of _____ bits.
A. 256
B. 128
C. 80 ......ANSWER......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 ......ANSWER......salt
The minimum recommended key size to use with RC4 is _____ bits.
A. 40
B. 20
C. 64 ......ANSWER......40
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RC4 is a symmetric stream cipher with a variable key size up to a max of
_____ bits.
A. 256
B. 2048
C. 1024 ......ANSWER......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 ......ANSWER......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 ......ANSWER......rainbow table
_____ is a common x.509 certificate file type that is used with both
PEM and DER formats.
A. .crt
B. .cer
WGU C839V5/D334 EXAM WITH CORRECT ACTUAL
QUESTIONS AND CORRECTLY WELL DEFINED ANSWERS
LATEST ALREADY GRADED A+ 2026
The hash value in bits for MD5 is ____.
A. 128
B. 160
C. 256 ......ANSWER......128
Hashing involves taking a _____ length input and producing a _____
length output (message digest).
A. fixed; fixed
B. variable; fixed
C. fixed; variable ......ANSWER......variable; fixed
The hash value in bits for SHA-1 is ____.
A. 128
B. 160
C. 256 ......ANSWER......160
The hash value in bits for MD4 is ____.
A. 128
,2|Page
B. 160
C. 256 ......ANSWER......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 ......ANSWER......Transport
IPSec ______ mode involves encryption from gateway to gateway, i.e.
just through the public network space.
A. Tunnel
B. Transport
C. Trusted ......ANSWER......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 ......ANSWER......Tunnel
,3|Page
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. ......ANSWER......Chaskey
Chaskey has a key size of _____ bits.
A. 256
B. 128
C. 80 ......ANSWER......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 ......ANSWER......salt
The minimum recommended key size to use with RC4 is _____ bits.
A. 40
B. 20
C. 64 ......ANSWER......40
, 4|Page
RC4 is a symmetric stream cipher with a variable key size up to a max of
_____ bits.
A. 256
B. 2048
C. 1024 ......ANSWER......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 ......ANSWER......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 ......ANSWER......rainbow table
_____ is a common x.509 certificate file type that is used with both
PEM and DER formats.
A. .crt
B. .cer
