WGU C172 Network & Security Complete Certification Exam Review Questions with verified Answers 2024/2025
NMAP - correct answer A Linux and Windows port scanner
Penetration Testing - correct answer Evaluating the security of a user's network by trying to exploit vulnerabilities
Virus - corr...
NMAP - correct answer A Linux and Windows port scanner
Penetration Testing - correct answer Evaluating the security of a user's network by
trying to exploit vulnerabilities
Virus - correct answer A piece of malicious computer code that, when opened, can
damage hardware, software, or other files
Worm - correct answer A type of virus that attacks computers, typically proliferates by
itself, and can deny service to networks
Malware (Malicious Software) - correct answer any program intended to harm, disrupt,
deny, or gain unauthorized access to a computing system
Zero-Day Attack - correct answer An attack that exploits a software vulnerability that is
unknown to the developer
DoS (Denial of Service) - correct answer An attack in which service is denied to a
computer, network, or server
Directed Broadcast - correct answer A broadcast that is sent to a specific subnet
PDoS (permanent denial of
service) - correct answer A malicious attack that aims to sabotage hardware and
render it useless
,Spoof - correct answer To insert a different IP address in place of an IP packet's
source address to make it appear that a packet came from another network
Reflective/Amplified DoS Attack - correct answer An attack that uses spoofing to carry
out the attack and is a combination of a reflection attack and an amplification attack
Coordinated Attack - correct answer A type of distributed denial of service attack that is
deliberate toward a specific target and orchestrated by a controller source like the
command-and-control server in a botnet
botnet - correct answer a group of infected/compromised computers on the Internet
that are used to launch coordinated DoS attacks against another system on the network
NAQC (Network Access Quarantine Control) - correct answer Windows server
resource kit tool that allows admins to prevent remote clients from connecting to
network
Firewall - correct answer Hardware or software used to protect a computer network
Access Control List (ACL) - correct answer A basic form of firewall protection involving
a list of permissions attached to an object
access-list permit ip any any - correct answer The instruction added to the last line of
an access list to allow all other data packets to enter and exit the router
DMZ (Demilitarized Zone) - correct answer An area used to isolate servers
Packet Filtering - correct answer Protection in which a limit is placed on the information
that can enter the network
Proxy Server - correct answer A setup in which clients go through a proxy to
communicate with secure systems
,Stateful Firewall - correct answer A firewall that keeps track of data packet flow
IDS and IPS (Intrusion Detection System; Intrusion Prevention System) - correct
answer Systems that identify misuse and anomalies on a network
Packet Shaper - correct answer A device that sits between a campus network and an
outside network and is configured with a set of rules that are used to prioritize data
traffic for shaping the bandwidth
Authentication, Authorization, and Accounting (AAA) - correct answer A framework
developed to control access to computing resources, enforce policies, and audit usage
RADIUS (Remote Authentication Dial-In User Service) - correct answer most widely
used AAA protocol
UTM (Unified Threat Management) - correct answer an all-in-one solution that
integrates a wide range of security features into one appliance
site-to-site VPN - correct answer VPN that requires network hardware like a router or
firewall to create and maintain the connection
remote access VPN - correct answer VPN that facilitates network access for users that
travel a lot and need access to the network
client-to-site VPN - correct answer type of VPN that provides mobile users a way to
remotely access their information from the home network
IP Tunnel - correct answer creates a virtual circuit between two endpoints and makes
the connection appear like a dedicated connection even though it spans over the
Internet infrastructure
, GRE (Generic Routing Encapsulation) - correct answer A tunneling protocol developed
by Cisco and is commonly used as a site-to-site VPN
PAP (Password Authentication Protocol) - correct answer simple, unencrypted
authentication method;
commonly used by PPP for authentication
CHAP (Challenge Handshake Authentication Protocol) - correct answer encrypted
authentication method that uses the MD5 file hashing algorithm;
commonly used by PPP for authentication
Message Digest 5 - correct answer MD5
SHA (Secure Hash Algorithm) - correct answer A cryptographic hash algorithm used
in certain government applications
PPTP (Point-to-Point Tunneling Protocol) - correct answer tunneling protocol that
works in connection with a standard PPP
-uses a modified GRE tunnel to carry its encapsulated packet for IP transmission
-relies heavily on the underlying PPP authentication
L2TP (Layer 2 Tunneling Protocol) - correct answer tunneling protocol that allows
tunnel authentication and was created with the intention of merging 2 incompatible
tunneling protocols (PPTP/L2F)
L2F (Layer 2 Forwarding) - correct answer tunneling protocol that relies on the PPP
authentication to be passed on to the corporate authentication server
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