SET 9 SSCP Practice Questions – WGU C845
Information Systems Security | Latest Update
2026 | Exam Prep PDF | Graded A+
Which of the following type of cryptography is used when both parties use the same key
to communicate securely with each other?
A. Symmetric Key Cryptography
B. PKI - Public Key Infrastructure
C. Diffie-Hellman
D. DSS - Digital Signature Standard - correct answerA. Symmetric Key Cryptography
Which of the following is true of network security?
A. A firewall is a not a necessity in today's connected world.
B. A firewall is a necessity in today's connected world.
C. A whitewall is a necessity in today's connected world.
D. A black firewall is a necessity in today's connected world. - correct answerB. A
firewall is a necessity in today's connected world.
What is called the access protection system that limits connections by calling back the
number of a previously authorized location?
A. Sendback systems
B. Callback forward systems
C. Callback systems
D. Sendback forward systems - correct answerC. callback systems
What is a decrease in amplitude as a signal propagates along a transmission medium
best known as?
A. Crosstalk
B. Noise
C. Delay distortion
D. Attenuation - correct answerD. Attenuation
Which device acting as a translator is used to connect two networks or applications from
layer 4 up to layer 7 of the ISO/OSI Model?
A. Bridge
B. Repeater
C. Router
D. Gateway - correct answerD. gateway
In which layer of the OSI Model are connection-oriented protocols located in the TCP/IP
suite of protocols?
A. Transport layer
,B. Application layer
C. Physical layer
D. Network layer - correct answerA. Transport layer
Which of the following is a telecommunication device that translates data from digital to
analog form and back to digital?
A. Multiplexer
B. Modem
C. Protocol converter
D. Concentrator - correct answerB. Modem
Which of the following transmission media would NOT be affected by cross talk or
interference?
A. Copper cable
B. Radio System
C. Satellite radiolink
D. Fiber optic cables - correct answerD. Fiber optic cables
What is called an attack where the attacker spoofs the source IP address in an ICMP
ECHO broadcast packet so it seems to have originated at the victim's system,
in order to flood it with REPLY packets?
A. SYN Flood attack
B. Smurf attack
C. Ping of Death attack
D. Denial of Service (DOS) attack - correct answerB. smurf attack
What is the main difference between a Smurf and a Fraggle attack?
A. A Smurf attack is ICMP-based and a Fraggle attack is UDP-based.
B. A Smurf attack is UDP-based and a Fraggle attack is TCP-based.
C. Smurf attack packets cannot be spoofed.
D. A Smurf attack is UDP-based and a Fraggle attack is ICMP-based. - correct
answerA. A Smurf attack is ICMP-based and a Fraggle attack is UDP-based.
Why are coaxial cables called "coaxial"?
A. it includes two physical channels that carries the signal surrounded (after a layer of
insulation) by another concentric physical channel, both running along the
same axis.
B. it includes one physical channel that carries the signal surrounded (after a layer of
insulation) by another concentric physical channel, both running along the
same axis
C. it includes two physical channels that carries the signal surrounded (after a layer of
insulation) by another two concentric physical channels, both running along
the same axis.
D. it includes one physical channel that carries the signal surrounded (after a layer of
insulation) by another concentric physical channel, both running perpendicular
,and along the different axis - correct answerB. it includes one physical channel that
carries the signal surrounded (after a layer of insulation) by another concentric physical
channel, both running along the
same axis
The International Standards Organization / Open Systems Interconnection (ISO/OSI)
Layers does NOT have which of the following characteristics?
A. Standard model for network communications
B. Used to gain information from network devices such as count of packets received
and routing tables
C. Enables dissimilar networks to communicate
D. Defines 7 protocol layers (a.k.a. protocol stack) - correct answerB. Used to gain
information from network devices such as count of packets received and routing tables
In telephony different types of connections are being used. The connection from the
phone company's branch office to local customers is referred to as which of
the following choices?
A. new loop
B. local loop
C. loopback
D. indigenous loop - correct answerB. local loop
Communications and network security relates to transmission of which of the following?
A. voice
B. voice and multimedia
C. data and multimedia
D. voice, data and multimedia - correct answerB. voice and multimedia
One of the following statements about the differences between PPTP and L2TP is NOT
true
A. PPTP can run only on top of IP networks.
B. PPTP is an encryption protocol and L2TP is not.
C. L2TP works well with all firewalls and network devices that perform NAT.
D. L2TP supports AAA servers - correct answerC. L2TP works well with all firewalls and
network devices that perform NAT.
You have been tasked to develop an effective information classification program. Which
one of the following steps should be performed first?
A. Establish procedures for periodically reviewing the classification and ownership
B. Specify the security controls required for each classification level
C. Identify the data custodian who will be responsible for maintaining the security level
of data
D. Specify the criteria that will determine how data is classified - correct answerD.
Specify the criteria that will determine how data is classified
, A group of independent servers, which are managed as a single system, that provides
higher availability, easier manageability, and greater scalability is:
A. server cluster
B. client cluster
C. guest cluster
D. host cluster - correct answerA. server cluster
A server cluster looks like a:
A. single server from the user's point of view
B. dual server from the user's point of view
C. triple server from the user's point of view
D. quardle server from the user's point of view - correct answerA. single server from the
user's point of view
If any server in the cluster crashes, processing continues transparently, however, the
cluster suffers some performance degradation. This implementation is sometimes called
a:
A. server farm
B. client farm
C. cluster farm
D. host farm - correct answerA. server farm
Which of the following is immune to the effects of electromagnetic interference (EMI)
and therefore has a much longer effective usable length?
A. Fiber Optic cable
B. Coaxial cable
C. Twisted Pair cable
D. Axial cable - correct answerA. fiber optic cable
Which of the following methods of providing telecommunications continuity involves the
use of an alternative media?
A. Alternative routing
B. Diverse routing
C. Long haul network diversity
D. Last mile circuit protection - correct answerA. alternative routing
Which port does the Post Office Protocol Version 3 (POP3) make use of?
A. 110
B. 109
C. 139
D. 119 - correct answerA. 110
Which of the following are WELL KNOWN PORTS assigned by the IANA?
A. Ports 0 to 255
B. Ports 0 to 1024
C. Ports 0 to 1023
Information Systems Security | Latest Update
2026 | Exam Prep PDF | Graded A+
Which of the following type of cryptography is used when both parties use the same key
to communicate securely with each other?
A. Symmetric Key Cryptography
B. PKI - Public Key Infrastructure
C. Diffie-Hellman
D. DSS - Digital Signature Standard - correct answerA. Symmetric Key Cryptography
Which of the following is true of network security?
A. A firewall is a not a necessity in today's connected world.
B. A firewall is a necessity in today's connected world.
C. A whitewall is a necessity in today's connected world.
D. A black firewall is a necessity in today's connected world. - correct answerB. A
firewall is a necessity in today's connected world.
What is called the access protection system that limits connections by calling back the
number of a previously authorized location?
A. Sendback systems
B. Callback forward systems
C. Callback systems
D. Sendback forward systems - correct answerC. callback systems
What is a decrease in amplitude as a signal propagates along a transmission medium
best known as?
A. Crosstalk
B. Noise
C. Delay distortion
D. Attenuation - correct answerD. Attenuation
Which device acting as a translator is used to connect two networks or applications from
layer 4 up to layer 7 of the ISO/OSI Model?
A. Bridge
B. Repeater
C. Router
D. Gateway - correct answerD. gateway
In which layer of the OSI Model are connection-oriented protocols located in the TCP/IP
suite of protocols?
A. Transport layer
,B. Application layer
C. Physical layer
D. Network layer - correct answerA. Transport layer
Which of the following is a telecommunication device that translates data from digital to
analog form and back to digital?
A. Multiplexer
B. Modem
C. Protocol converter
D. Concentrator - correct answerB. Modem
Which of the following transmission media would NOT be affected by cross talk or
interference?
A. Copper cable
B. Radio System
C. Satellite radiolink
D. Fiber optic cables - correct answerD. Fiber optic cables
What is called an attack where the attacker spoofs the source IP address in an ICMP
ECHO broadcast packet so it seems to have originated at the victim's system,
in order to flood it with REPLY packets?
A. SYN Flood attack
B. Smurf attack
C. Ping of Death attack
D. Denial of Service (DOS) attack - correct answerB. smurf attack
What is the main difference between a Smurf and a Fraggle attack?
A. A Smurf attack is ICMP-based and a Fraggle attack is UDP-based.
B. A Smurf attack is UDP-based and a Fraggle attack is TCP-based.
C. Smurf attack packets cannot be spoofed.
D. A Smurf attack is UDP-based and a Fraggle attack is ICMP-based. - correct
answerA. A Smurf attack is ICMP-based and a Fraggle attack is UDP-based.
Why are coaxial cables called "coaxial"?
A. it includes two physical channels that carries the signal surrounded (after a layer of
insulation) by another concentric physical channel, both running along the
same axis.
B. it includes one physical channel that carries the signal surrounded (after a layer of
insulation) by another concentric physical channel, both running along the
same axis
C. it includes two physical channels that carries the signal surrounded (after a layer of
insulation) by another two concentric physical channels, both running along
the same axis.
D. it includes one physical channel that carries the signal surrounded (after a layer of
insulation) by another concentric physical channel, both running perpendicular
,and along the different axis - correct answerB. it includes one physical channel that
carries the signal surrounded (after a layer of insulation) by another concentric physical
channel, both running along the
same axis
The International Standards Organization / Open Systems Interconnection (ISO/OSI)
Layers does NOT have which of the following characteristics?
A. Standard model for network communications
B. Used to gain information from network devices such as count of packets received
and routing tables
C. Enables dissimilar networks to communicate
D. Defines 7 protocol layers (a.k.a. protocol stack) - correct answerB. Used to gain
information from network devices such as count of packets received and routing tables
In telephony different types of connections are being used. The connection from the
phone company's branch office to local customers is referred to as which of
the following choices?
A. new loop
B. local loop
C. loopback
D. indigenous loop - correct answerB. local loop
Communications and network security relates to transmission of which of the following?
A. voice
B. voice and multimedia
C. data and multimedia
D. voice, data and multimedia - correct answerB. voice and multimedia
One of the following statements about the differences between PPTP and L2TP is NOT
true
A. PPTP can run only on top of IP networks.
B. PPTP is an encryption protocol and L2TP is not.
C. L2TP works well with all firewalls and network devices that perform NAT.
D. L2TP supports AAA servers - correct answerC. L2TP works well with all firewalls and
network devices that perform NAT.
You have been tasked to develop an effective information classification program. Which
one of the following steps should be performed first?
A. Establish procedures for periodically reviewing the classification and ownership
B. Specify the security controls required for each classification level
C. Identify the data custodian who will be responsible for maintaining the security level
of data
D. Specify the criteria that will determine how data is classified - correct answerD.
Specify the criteria that will determine how data is classified
, A group of independent servers, which are managed as a single system, that provides
higher availability, easier manageability, and greater scalability is:
A. server cluster
B. client cluster
C. guest cluster
D. host cluster - correct answerA. server cluster
A server cluster looks like a:
A. single server from the user's point of view
B. dual server from the user's point of view
C. triple server from the user's point of view
D. quardle server from the user's point of view - correct answerA. single server from the
user's point of view
If any server in the cluster crashes, processing continues transparently, however, the
cluster suffers some performance degradation. This implementation is sometimes called
a:
A. server farm
B. client farm
C. cluster farm
D. host farm - correct answerA. server farm
Which of the following is immune to the effects of electromagnetic interference (EMI)
and therefore has a much longer effective usable length?
A. Fiber Optic cable
B. Coaxial cable
C. Twisted Pair cable
D. Axial cable - correct answerA. fiber optic cable
Which of the following methods of providing telecommunications continuity involves the
use of an alternative media?
A. Alternative routing
B. Diverse routing
C. Long haul network diversity
D. Last mile circuit protection - correct answerA. alternative routing
Which port does the Post Office Protocol Version 3 (POP3) make use of?
A. 110
B. 109
C. 139
D. 119 - correct answerA. 110
Which of the following are WELL KNOWN PORTS assigned by the IANA?
A. Ports 0 to 255
B. Ports 0 to 1024
C. Ports 0 to 1023
