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What is the primary purpose of a Web Application Firewall (WAF)?
a. Improving website aesthetics
b. Granting unrestricted access to all users
c. Actively blocking malicious traffic
d. Monitoring and filtering HTTP traffic to protect web applications
Answer: dexamradar+2
Which attack does a WAF commonly defend against?
a. SQL injection
b. Phishing emails
c. Hardware failure
d. Data loss prevention
Answer: adocsity+2
At which OSI layer does a WAF operate?
a. Physical Layer
b. Network Layer
c. Session Layer
d. Application Layer
Answer: dorca+2
What does the acronym WAF stand for?
a. Wide Area Firewall
b. Web Application Firewall
c. Wireless Access Framework
d. Windows Application Function
Answer: bfastly+2
How does a WAF help mitigate cross-site scripting (XSS) attacks?
a. By blocking TCP/IP packets
b. By inspecting and filtering HTTP requests
c. By enhancing DNS resolution speed
d. By providing server load balancing
Answer: bf5+2
Which security model allows only known good traffic in a WAF?
a. Negative security model
b. Passive security model
c. Positive security model
d. Default security model
Answer: cindusface+1
What is a signature-based WAF approach?
a. Blocks traffic based on anomaly detection
b. Uses known attack patterns to block malicious requests
c. Allows all traffic except DDoS
d. Encrypts server communications only
Answer: bindusface+1
What is the main function of a WAF?
a. To block unauthorized access to the network
b. To filter and monitor HTTP/HTTPS traffic for web applications
c. To scan for malware in emails
d. To manage VPN connections
Answer: bqaautomation+1
Which deployment mode allows a WAF to act without intercepting traffic?
a. Inline mode
b. Passive/Bridge mode
c. Reverse proxy mode
d. Cloud mode
Answer: bcoralogix+1
Which of the following is a cloud-based WAF benefit?
a. Needs physical hardware on-premises
b. Easily scalable and globally available protection
c. Operates only on local subnets
d. Requires manual threat intelligence updates
Answer: bkemptechnologies+2
Which common web vulnerability is targeted by WAFs?
a. DDoS attacks
b. SQL injection
c. Physical access control
d. Bluetooth sniffing
Answer: bdocsity+2
How does a WAF inspect incoming traffic?
a. By analyzing network layer packets
b. By analyzing HTTP headers, URLs, and payloads
c. By reading browser cookies only
d. By filtering wireless signals
Answer: borca+1
What is a reverse proxy?
a. A server that blocks outgoing emails
b. A device that exclusively handles DNS lookups
c. An intermediary that forwards safe HTTP requests to servers
d. A router for TCP/IP traffic
Answer: cfastly+1
Which of the following is NOT a WAF feature?
a. Monitoring HTTP/HTTPS traffic
b. Malware scanning in USB drives
c. Blocking malicious requests
d. Applying security rules to web requests
Answer: bimperva+1
Which organization maintains the OWASP Top 10 list referenced by WAFs?
a. Cisco
b. EC Council
c. OWASP Foundation
d. ISACA
Answer: corca+1
Which WAF deployment is managed entirely by a vendor?
a. Appliance-based
b. Cloud-based as-a-service
c. On-premises proxy
d. Manual installation on web server
Answer: bkemptechnologies+1
WAFs typically protect applications from threats such as:
a. ARP spoofing
b. Cross-site scripting (XSS)
c. Disk fragmentation
d. Data backup failures
Answer: bcloudflare+2
Which model does a negative security approach in WAFs use?
a. Whitelisting valid traffic only
b. Blocking traffic that matches known attack patterns
c. Allowing any traffic that passes port filters
d. Encrypting all web traffic
Answer: bindusface+1
What type of firewall is mainly focused on ports and protocols?
a. Network firewall
b. Web Application Firewall
c. Host-based firewall
d. Database firewall
Answer: aexamradar+1
Which of the following requires regular policy updates due to new vulnerabilities?
a. Physical firewall
b. Router
c. WAF
d. Switch
Answer: cimperva+1
A WAF deployed as an appliance is most suitable for:
a. Cloud-only environments
b. Organizations with strict compliance needs
c. Individual laptops
d. Bluetooth networks
Answer: bpetri+2
Which protocol is primarily filtered by WAFs?
a. FTP
b. HTTP/HTTPS
c. SNMP
d. SMTP
Answer: bf5+2
Which of the following attacks can be blocked by WAFs?
a. Physical server attacks
b. Application-layer attacks
c. Wireless signal jamming
d. Network cable tampering
Answer: bexamradar+2
What is OWASP?
a. An encryption algorithm
b. An open-source security project
c. A product vendor
d. A government agency
Answer: bfastly+1
WAF appliances are installed:
a. In peripheral devices
b. On network core or subnet
c. On end-user computers
d. In cloud provider’s remote server farm
Answer: bpetri
Which deployment allows all maintenance to be handled remotely?
a. On-premises WAF
b. Cloud-based WAF
c. Packet filter firewall
d. Transparent proxy firewall
Answer: bcoralogix+1
Which attack cannot be stopped by most WAFs?
a. SQL injection
b. XSS
c. Man-in-the-middle at physical layer
d. HTTP Protocol violations
Answer: corca+1
Which kind of attack do WAFs specifically filter out?
a. Network-layer attacks
b. Physical attacks
c. Application-layer threats like XSS and CSRF
d. Email spam
Answer: cfastly+1
Which of these should NOT be enabled on a WAF by default?
a. Allow all traffic without inspection
b. Rule-based inspection
c. Signature-based filtering
d. Behavioral modeling
Answer: aexamradar+1
What is a common challenge with WAF implementation?
a. Maintaining scalability and performance
b. Bluetooth device compatibility
c. TCP/IP stack fragmentation
d. SIEM integration
Answer: akemptechnologies+1
What does a positive security model enforce?
a. Known malicious patterns are blocked
b. Only legitimate traffic patterns are allowed
c. Traffic is randomly blocked
d. All traffic is allowed
Answer: bindusface+1
Machine learning in WAFs is mainly used for:
a. Encrypting HTTP traffic
b. Automated updates for threat intelligence
c. Setting up VPN connections
d. Packet switching optimization
Answer: bkemptechnologies+1
WAF as a reverse proxy means:
a. WAF blocks outgoing emails
b. WAF stands between users and web servers, filtering requests
c. WAF only monitors DNS requests
d. WAF is installed on client devices
Answer: borca+1
Which is NOT a benefit of cloud-based WAFs?
a. Global scalability
b. Automatic security updates
c. Dedicated hardware management by customer
d. Ease of deployment
Answer: ckemptechnologies+1
WAF policy updates address:
a. New application vulnerabilities
b. Hardware device drivers
c. 802.11 wireless protocol changes
d. Firmware updates in routers
Answer: aimperva+2
Which parameter can be controlled by a WAF?
a. Physical port address
b. HTTP header content
c. USB device type
d. Bluetooth signal strength
Answer: bimperva+1
In passive deployment, a WAF:
a. Actively blocks traffic
b. Monitors traffic without interception
c. Generates SSL certificates
d. Performs network address translation
Answer: bcoralogix+1
Which WAF type provides the fastest protection for high-traffic applications?
a. Appliance-based WAF
b. Manual ruleset engine
c. Passive monitoring tool
d. Physical firewall
Answer: apetri+1
What is the role of behavioral analysis in WAFs?
a. Encrypting SSL traffic
b. Detecting suspicious request patterns
c. Routing application traffic
d. Optimizing bandwidth
Answer: bcoralogix+1
What is rule-based inspection in WAFs?
a. Inspection based on standardized firewall protocols
b. Blocking or allowing traffic based on predefined rules
c. Monitoring TCP handshake errors
d. Generating automated backups
Answer: bimperva+1
What type of attacks are included in OWASP Top 10 for WAF defense?
a. Physical server break-ins
b. Application-level vulnerabilities like XSS, CSRF, and SQLi
c. Bluetooth device eavesdropping
d. 5G network interference
Answer: bfastly+1
How do cloud-based WAFs deliver updates?
a. Manual patching by system admins
b. VIA automatic threat intelligence feeds from providers
c. Through hardware device ROM flashes
d. Embedded in browser plugins
Answer: bkemptechnologies+1
Which configuration enables a WAF to inspect SSL-encrypted traffic?
a. Disabling SSL/TLS entirely
b. Terminating SSL at the WAF with appropriate keys/certificates
c. Blocking all HTTPS requests
d. Enabling network address translation
Answer: bimperva+1
What does a WAF’s anomaly detection feature do?
a. Identifies unusual or abnormal patterns in web traffic
b. Locks unused user accounts
c. Encrypts file storage libraries
d. Disables unused network ports
Answer: aorca+1
Which deployment gives organizations total control over WAF policies?
a. Cloud-based WAF managed by a third-party
b. Appliance-based on-premises WAF
c. Passive/bridge-mode deployment in other networks
d. Managed service WAF in remote location
Answer: bpetri+1
Why are regular updates crucial for signature-based WAFs?
a. To support faster web hosting
b. To block new, emerging threats effectively
c. To enable Wi-Fi compatibility
d. To perform hardware upgrades automatically
Answer: bindusface+1
What is a transparent WAF?
a. A WAF that monitors traffic without modifying it
b. A WAF that encrypts all traffic
c. A WAF that only scans emails
d. A WAF that operates only in the cloud
Answer: aorca
What is the main reason organizations use cloud-based WAFs?
a. To offload maintenance and attain scalability
b. To troubleshoot physical cable issues
c. To audit disk fragmentation
d. To implement wireless signal control
Answer: acoralogix+1
How does a WAF assist during a zero-day vulnerability outbreak?
a. By using generic behavioral models to block unknown attacks
b. By patching firmware automatically
c. By changing network protocols
d. By disabling HTTP port entirely
Answer: aindusface+1
Which component is NOT part of a typical WAF architecture?
a. Rule engine
b. Threat intelligence module
c. Wi-Fi transceiver
d. Logging and reporting system
Answer: ccoralogix+2

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