Free NSE4_FGT-7.2 Practice Exam Questions

Which three statements explain a flow-based antivirus profile? (Choose three.)

A. Flow-based inspection uses a hybrid of the scanning modes available in proxy-based inspection.

B. If a virus is detected, the last packet is delivered to the client.

C. The IPS engine handles the process as a standalone.

D. FortiGate buffers the whole file but transmits to the client at the same time.

E. Flow-based inspection optimizes performance compared to proxy-based inspection.

A.   Flow-based inspection uses a hybrid of the scanning modes available in proxy-based inspection.

D.   FortiGate buffers the whole file but transmits to the client at the same time.

E.   Flow-based inspection optimizes performance compared to proxy-based inspection.

Reference: https://forum .fortinet.com/tm .aspx?m=192309

Which two statements explain antivirus scanning modes? (Choose two.)

A. In proxy-based inspection mode, files bigger than the buffer size are scanned.

B.

In flow-based inspection mode, FortiGate buffers the file, but also simultaneously transmits it to the client.

C.

In proxy-based inspection mode, antivirus scanning buffers the whole file for scanning, before sending it to the client.

D.

In flow-based inspection mode, files bigger than the buffer size are scanned.

B.

In flow-based inspection mode, FortiGate buffers the file, but also simultaneously transmits it to the client.

C.

In proxy-based inspection mode, antivirus scanning buffers the whole file for scanning, before sending it to the client.

An antivirus profile in full scan mode buffers up to your specified file size limit. The default is 10 MB. That is large enough for most files, except video files. If your FortiGate model has more RAM, you may be able to increase this threshold. Without a limit, very large files could exhaust the scan memory. So, this threshold balances risk and performance. Is this tradeoff unique to FortiGate, or to a specific model? No. Regardless of vendor or model, you must make a choice. This is because of the difference between scans in theory, that have no limits, and scans on real world devices, that have finite RAM. In order to detect 100% of malware regardless of file size, a firewall would need infinitely large RAM- something that no device has in the real world. Most viruses are very small. This table shows a typical tradeoff. You can see that with the default 10 MB threshold, only 0.01% of viruses pass through.

FortiGate Security 7.2 Study Guide (p.350 & 352): "In flow-based inspection mode, the IPS engine reads the payload of each packet, caches a local copy, and forwards the packet to the receiver at the same time. Because the file is ransmitted simultaneously, flow-based mode consumes more CPU cycles than proxy-based." "Each protocol’s proxy picks up a connection and buffers the entire file first (or waits until the oversize limit is reached) before scanning. The client must wait for the scanning to finish."

An administrator is configuring an Ipsec between site A and siteB. The Remotes Gateway setting in both sites has been configured as Static IP Address. For site A, the local quick mode selector is 192. 16. 1.0/24 and the remote quick mode selector is 192. 16.2.0/24. How must the administrator configure the local quick mode selector for site B?

A. 192. 168.3.0/24

B. 192. 168.2.0/24

C. 192. 168. 1.0/24

D. 192. 168.0.0/8

B. 192. 168.2.0/24

Which two protocols are used to enable administrator access of a FortiGate device? (Choose two.)

A. SSH

B. HTTPS

C. FTM

D. FortiTelemetry

A. SSH

B. HTTPS

Reference:

https://docs.fortinet.com/document/fortigate/6.4.0/hardening-yourfortigate/995103/buildingsecurity-into-fortios

Which statement about video filtering on FortiGate is true?

A. Video filtering FortiGuard categories are based on web filter FortiGuard categories.

B. It does not require a separate FortiGuard license.

C. Full SSL inspection is not required.

D. its available only on a proxy-based firewall policy.

FortiGate Security 7.2 Study Guide (p.279): "To apply the video filter profile, proxy-based firewall polices currently allow you to enable the video filter profile. You must enable full SSL inspection on the firewall policy."

https://docs.fortinet.com/document/fortigate/7.2.4/administration-guide/860867/filteringbased-on-fortiguard-categories

NSE4_FGT-7.2 Practice Test