A fully updated 2022 WCNA Exam Dumps exam guide from training expert DumpsMaterials
Provides complete coverage of every objective on exam and exam preparation WCNA
NEW QUESTION 26
Wireshark cancapture traffic on an interface even if that interface is not listed on the Start Page.
- A. True
- B. False
Answer: B
NEW QUESTION 27
Network congestion is defined as a condition that can cause packet loss or slow data transfer because the network itself cannot support the data transfer rate.
- A. True
- B. False
Answer: A
NEW QUESTION 28
When you disable the UDP protocol decoding process, applications that use UDP (such as DHCP and DNS) will not bedecoded.
- A. True
- B. False
Answer: A
NEW QUESTION 29
To increase the number of recently created display filters that Wireshark remembers, increase theFilter display max,list entriesvalue in Wireshark's Preferences window.
- A. True
- B. False
Answer: A
NEW QUESTION 30 
Which statement about this traffic is correct?
- A. A firewall is blocking the SYN packets from reaching the desired host.
- B. The SYN packets are sent from asingle source port number.
- C. This is a TCP port scan.
- D. The responses to the SYN packets should only have the RST bit set.
Answer: C
NEW QUESTION 31
Which traffic characteristic is often seen when analyzing database applications that transfer individual records across the network?
- A. large delays between transmissions
- B. separate connections for each record
- C. multicast responses
- D. small packet sizes
Answer: D
NEW QUESTION 32
Wireshark can import CSV (comma separated value) format files for further analysis.
- A. True
- B. False
Answer: A
NEW QUESTION 33
All packets that contain UDP or TCP headers are counted in the IP Protocol Types statistic.
- A. True
- B. False
Answer: A
NEW QUESTION 34
Both sides of a TCP connection must negotiate a common receive window size value.
- A. True
- B. False
Answer: B
NEW QUESTION 35
POP requests consist of a Request Command and Request Parameter.
- A. True
- B. False
Answer: A
NEW QUESTION 36
Which name resolution process translates port numbers to service names if they are listed in Wireshark's services file?
- A. SMI name resolution
- B. transport name resolution
- C. network name resolution
- D. MAC address name resolution
Answer: B
NEW QUESTION 37 
This packet shows the expanded TCP flags area. The display filter tcp.fiags.syn==1 && tcp.flags.ack==1 and the display filter tcp.fiags=0xi2 provide identicalfiltering results.
- A. True
- B. False
Answer: A
NEW QUESTION 38
IP routers strip off the MAC header of incoming packets and apply a new MAC header before forwarding the packet onto the next network.
- A. True
- B. False
Answer: A
NEW QUESTION 39
Which format is used by capture filters?
- A. Berkeley Packet Filtering (BPF) format
- B. display filter format
- C. tshark format
- D. libpcap format
Answer: A
NEW QUESTION 40
The value *REF* in the Time column indicates that a packet has been marked.
- A. True
- B. False
Answer: B
NEW QUESTION 41
You can use the display filter ss1. record.content_type = =22 to view just the SSL/TLS handshakepackets.
- A. True
- B. False
Answer: A
NEW QUESTION 42
A host has just booted up. This host is allowed to send ARP queries for the MAC address of thelocal DNS server before sending gratuitous ARPs to test for duplicate IP addresses on the network.
- A. True
- B. False
Answer: A
NEW QUESTION 43
Whichstatement about ICMP is true?
- A. ICMP packets do not contain a UDP or TCP header.
- B. ICMP packets cannot cross a router.
- C. All ICMP packets are the same length.
- D. Port filtering can block ICMP traffic.
Answer: A
NEW QUESTION 44
The Protocol Hierarchy Statistics window helps identify unusual protocols and applications in captured traffic.
- A. True
- B. False
Answer: A
NEW QUESTION 45
DNS responses contain four sections: Question, Answer RR, Authority RR and Additional RR.
- A. True
- B. False
Answer: A
NEW QUESTION 46
Display filters areapplied to decrease the time required to identify the cause of poor network performance, unusual network traffic patterns or other traffic of interest.
- A. True
- B. False
Answer: A
NEW QUESTION 47
If a DHCP client does not receive an acknowledgment before the expiration of the rebinding time, the DHCP client must release its IP address and send a DHCP broadcast tolocate a DHCP server or Relay Agent.
- A. True
- B. False
Answer: A
NEW QUESTION 48
In the case of a high latency path, more than three identical ACKs may be sent before the retransmission is seen in a trace file.
- A. True
- B. False
Answer: A
NEW QUESTION 49 
Which statement about the Capture Options window shown is correct?
- A. Wireshark will resolve IP addresses to host names.
- B. Wireshark will attempt to resolve OUI values for all MAC addresses.
- C. Wireshark will automatically stop capturing packets after two files have been saved.
- D. Wireshark will scroll to displaythe most recent packet captured.
Answer: D
NEW QUESTION 50
You have opened a trace file that has been sent to you and you noticed the timestamp only offers millisecond-level time values. You can enable Wireshark to add themicrosecond detail information to these packets.
- A. True
- B. False
Answer: A
NEW QUESTION 51
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