WGU D315 Network and Security
Foundation FINAL EXAM QUESTIONS
WITH CORRECT DETAILED
SOLUTIONS||100% GUARANTEED
PASS||ALREADY A+
GRADED||UPDATED 2026D/2027
SYLLABUS||<<NEWEST VERSION>>
Firewall that only checks the address label - ANSWER ✓ Packet Filter
On what OSI level is a Packet Filter operating - ANSWER ✓ Transport (checks
TCP/UDP prot numbers) and Network (checks source and destination IP)
What is a circuit level gateway - ANSWER ✓ A firewall that conceals the true
identity of the protected network (hides IP) on the transport (4) layer
What does state in stateful mean? - ANSWER ✓ It refers to the connection state
between two computers
Why do we need the 5th layer on a Stateful Inspection - ANSWER ✓ In this
connection, the firewall is creating temporary rules per session to permit
communication (TCP) back to the sender.
What is a stateful inspection - ANSWER ✓ It reduces the amount of firewall rules.
Firewall vendors implemented a feature that only needs one rule to allow the initial
communication.
How do we protect the application level with a firewall - ANSWER ✓ With a
proxy server, Middle man or Layer 7 firewall
, Can a packet filter firewall scan the packet content? - ANSWER ✓ No, a layer 7
or proxy is needed
What is a IDS - ANSWER ✓ Intrusion Detection system. A system for detecting
attempting intrusion. Related to intrusion prevention systems (IPS) that block
suspected attacks
What is IPS - ANSWER ✓ Intrusion Prevention System that can block traffic if a
malicious anomaly is detected
Cyber Attack - Ransomware - ANSWER ✓ Encrypts data. Attacker sells the key.
Prevent with Virus scanner
Cyber Attack - Man in the Middle - ANSWER ✓ Eaves dropping. The data flows
thru the middle man. The attacker can stop/change the data
Cyber Attack - Zero Day exploit - ANSWER ✓ New unheard vulnerability. Needs
to be patched
Cyber Attack - DNS tunneling - ANSWER ✓ An attacker creates a bad server and
connects it to the attacked domain name system. If now a request comes to the
attacked server, the attacker can tunnel into the client and since dns connections
are rarely monitored, the attacker stays hidden.
Cyber Attack - XXS attack - ANSWER ✓ Cross Site Scripting uses a web form to
inject malicious code.
Cyber Attack - Social engineering - ANSWER ✓ Convince someone to give a you
access to sensitive information
Cyber Attack - DoS and DDos - ANSWER ✓ Denial of Service attacks flood a
server with too much traffic
Cyber Attack - SQL Injection - ANSWER ✓ A technique to add a string of sql
code to a query to gain access to the targeted database
Foundation FINAL EXAM QUESTIONS
WITH CORRECT DETAILED
SOLUTIONS||100% GUARANTEED
PASS||ALREADY A+
GRADED||UPDATED 2026D/2027
SYLLABUS||<<NEWEST VERSION>>
Firewall that only checks the address label - ANSWER ✓ Packet Filter
On what OSI level is a Packet Filter operating - ANSWER ✓ Transport (checks
TCP/UDP prot numbers) and Network (checks source and destination IP)
What is a circuit level gateway - ANSWER ✓ A firewall that conceals the true
identity of the protected network (hides IP) on the transport (4) layer
What does state in stateful mean? - ANSWER ✓ It refers to the connection state
between two computers
Why do we need the 5th layer on a Stateful Inspection - ANSWER ✓ In this
connection, the firewall is creating temporary rules per session to permit
communication (TCP) back to the sender.
What is a stateful inspection - ANSWER ✓ It reduces the amount of firewall rules.
Firewall vendors implemented a feature that only needs one rule to allow the initial
communication.
How do we protect the application level with a firewall - ANSWER ✓ With a
proxy server, Middle man or Layer 7 firewall
, Can a packet filter firewall scan the packet content? - ANSWER ✓ No, a layer 7
or proxy is needed
What is a IDS - ANSWER ✓ Intrusion Detection system. A system for detecting
attempting intrusion. Related to intrusion prevention systems (IPS) that block
suspected attacks
What is IPS - ANSWER ✓ Intrusion Prevention System that can block traffic if a
malicious anomaly is detected
Cyber Attack - Ransomware - ANSWER ✓ Encrypts data. Attacker sells the key.
Prevent with Virus scanner
Cyber Attack - Man in the Middle - ANSWER ✓ Eaves dropping. The data flows
thru the middle man. The attacker can stop/change the data
Cyber Attack - Zero Day exploit - ANSWER ✓ New unheard vulnerability. Needs
to be patched
Cyber Attack - DNS tunneling - ANSWER ✓ An attacker creates a bad server and
connects it to the attacked domain name system. If now a request comes to the
attacked server, the attacker can tunnel into the client and since dns connections
are rarely monitored, the attacker stays hidden.
Cyber Attack - XXS attack - ANSWER ✓ Cross Site Scripting uses a web form to
inject malicious code.
Cyber Attack - Social engineering - ANSWER ✓ Convince someone to give a you
access to sensitive information
Cyber Attack - DoS and DDos - ANSWER ✓ Denial of Service attacks flood a
server with too much traffic
Cyber Attack - SQL Injection - ANSWER ✓ A technique to add a string of sql
code to a query to gain access to the targeted database
