Page 1 of 305
WGU C839 - INTRO TO CRYPTOGRAPHY -
STUDY PREP | {LATEST 2026/ 2027 UPDATE}
COMPLETE ACTUAL AND AUTHENTIC EXAM |
BRAND NEW!
Which encryption standard uses the same key to encrypt and decrypt
messages?
A) Asymmetric Key Encryption
B) Symmetric Key Encryption
C) Public Certificate
D) CRL
B
With _________, the routing is done using computers of volunteers
around the world to route the traffic around the Internet, and within
each hop the chances to trace the original source significantly reduces.
A) Netgear
B) Cisco
,Page 2 of 305
C) TOR
D) HTTP
C
Determination of whether AH, ESP or both will be used in a given
IPSec connection occurs in the 1st phase, IKE.
A) True
B) False
B
Shawn has configured IPSec tunnel mode within his network
environment to facilitate the security team being able to employ
intrusion detection and and virus scanning of traffic entering/leaving
the trusted network. There have several instances where certain
traffic entering the network could still not be scanned. From the list
below, what could be the reason.
A) Transport vs Tunnel mode should be used
B) The network connection used SSL
C) TCP/IP was used
,Page 3 of 305
D) The payload is stripped at the firewall
B
What IP protocol number does Encapsulating Security Protocol (ESP)
use?
A) 50
B) 51
C) 500
D) 443
A
From the list below, select the management protocol most commonly
associated with UDP port 500 by default.
A) Windows Remote Management (WinRM )
B) Internet Key Exchange (IKE)
C) Remote Desktop Protocol (RDP)
D) Simple Network Management Protocol (SNMP)
B
, Page 4 of 305
With IPSec _____ mode, we have end-to-end tunneling, where the
encryption scope spans across of the network, and where no
intermediate scanning is possible for the content stored within the
packets.
A) Transport
B) Payload
C) Datagram
D) Tunnel
A
AES has proven to be free from major vulnerabilities, but AES use of
ECB makes it susceptible to which which type of attack?
A) Dictionary attack
B) Hash attack
C) Pad-and-Store attack
D) Copy-and-Paste attack
D
WGU C839 - INTRO TO CRYPTOGRAPHY -
STUDY PREP | {LATEST 2026/ 2027 UPDATE}
COMPLETE ACTUAL AND AUTHENTIC EXAM |
BRAND NEW!
Which encryption standard uses the same key to encrypt and decrypt
messages?
A) Asymmetric Key Encryption
B) Symmetric Key Encryption
C) Public Certificate
D) CRL
B
With _________, the routing is done using computers of volunteers
around the world to route the traffic around the Internet, and within
each hop the chances to trace the original source significantly reduces.
A) Netgear
B) Cisco
,Page 2 of 305
C) TOR
D) HTTP
C
Determination of whether AH, ESP or both will be used in a given
IPSec connection occurs in the 1st phase, IKE.
A) True
B) False
B
Shawn has configured IPSec tunnel mode within his network
environment to facilitate the security team being able to employ
intrusion detection and and virus scanning of traffic entering/leaving
the trusted network. There have several instances where certain
traffic entering the network could still not be scanned. From the list
below, what could be the reason.
A) Transport vs Tunnel mode should be used
B) The network connection used SSL
C) TCP/IP was used
,Page 3 of 305
D) The payload is stripped at the firewall
B
What IP protocol number does Encapsulating Security Protocol (ESP)
use?
A) 50
B) 51
C) 500
D) 443
A
From the list below, select the management protocol most commonly
associated with UDP port 500 by default.
A) Windows Remote Management (WinRM )
B) Internet Key Exchange (IKE)
C) Remote Desktop Protocol (RDP)
D) Simple Network Management Protocol (SNMP)
B
, Page 4 of 305
With IPSec _____ mode, we have end-to-end tunneling, where the
encryption scope spans across of the network, and where no
intermediate scanning is possible for the content stored within the
packets.
A) Transport
B) Payload
C) Datagram
D) Tunnel
A
AES has proven to be free from major vulnerabilities, but AES use of
ECB makes it susceptible to which which type of attack?
A) Dictionary attack
B) Hash attack
C) Pad-and-Store attack
D) Copy-and-Paste attack
D
