[2021年更新]WCNAはWireshark Certificationリアルな無料試験練習テスト
無料Wireshark Certification WCNA試験問題を提供します
質問 11
By default, Mergecap combinestrace files based on the order they are listed on the command-line.
- A. True
- B. False
正解: B
質問 12
1O Graphs supportdisplay filters and expressions.
- A. True
- B. False
正解: A
質問 13 
This TCP Round Trip Time graph indicates thehighest round trip latency time seen in this trace file is 1 millisecond.
- A. True
- B. False
正解: B
質問 14
Which statement about TCP sequence and acknowledgment numbering is correct?
- A. Starting Sequence Numbers cannot be larger than 65,535 because this is a 2-byte field.
- B. Both sides of a TCP connection must agree on an Initial Sequence Number value.
- C. The sequence number always increments by 1 for each data packettransmitted.
- D. The Acknowledgment Number field indicates the next sequence number expected from the other side of the connection.
正解: D
質問 15
Wireshark can be used to capture, reassemble and playback encrypted VoIP conversations.
- A. True
- B. FiFalse
正解: B
質問 16 
This is a DNS inverse query packet used to resolve an IP address to a host name.
- A. True
- B. False
正解: B
質問 17
Baselines of basic VoIP traffic patterns should include analysis of the call setup and actual call process traffic.
- A. True
- B. False
正解: A
質問 18
How can you quickly Identify all WLAN BSSIDs seen In a trace file?
- A. openStatistics|WLAN Traffic
- B. filter on wlan.bssid.id
- C. openStatistics|Summary
- D. sort on the MAC header type
正解: A
質問 19
All packets that contain UDP or TCP headers are counted in the IP Protocol Types statistic.
- A. True
- B. False
正解: A
質問 20
DNS responses contain four sections: Question, Answer RR, Authority RR and Additional RR.
- A. True
- B. False
正解: A
質問 21
You are performing a TCP scan on a target while capturing your traffic with Wireshark. Which statement about the analysis is correct?
- A. If a TCP RST response is received, the target is not currently powered up.
- B. If you receive ICMP responses, the target port is likely firewalled.
- C. If only UDP responses are received, the target does not support TCP.
- D. If you receive TCP Push responses, the target port is blocked.
正解: B
質問 22
When you disable the UDP protocol decoding process, applications that use UDP (such as DHCP and DNS) will not bedecoded.
- A. True
- B. False
正解: A
質問 23
The IPv4 Total Length field defines the length of the IP header, valid data and data link padding.
- A. True
- B. False
正解: B
質問 24
By default, Wireshark will only dissect port 443 traffic as SSL/TLS traffic. If you are using another port for SSL/TLS communications, you must add that port number in the HTTP preferences setting for SSL/TLS ports.
- A. True
- B. False
正解: A
質問 25
The capture filterport 67 would capture all DHCP traffic seen by Wireshark.
- A. True
- B. False
正解: B
質問 26
Applications may override the default port value defined in the TCP/IP stack services file.
- A. True
- B. False
正解: A
質問 27
ThePrepare a Filterfeature creates a display filter in the display filter window, but does not apply the filter to the traffic.
- A. True
- B. False
正解: A
質問 28
Wireshark's GeoIP feature launches an OpenStreetMap view of the world from the Endpoints window to plot IP addresses seen in the trace file.
- A. True
- B. False
正解: A
質問 29
What is the purpose of creating Wireshark profiles?
- A. customize Wireshark for more efficient analysis in specific environments
- B. create a customized method of name resolution
- C. discover and test RSA keys for traffic decryption
- D. create a manageable database of packets for use in third-party programs
正解: A
質問 30
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Protocol Analysis WCNAリアルな問題と知能問題集：https://jp.fast2test.com/WCNA-premium-file.html