100-150 試験問題を無料オンラインアクセス

HOTSPOT
An app on a user's computer is having problems downloading data.
The app uses the following URL to download data: https://www.companypro.net:7100/api
You need to use Wireshark to capture packets sent to and received from that URL.
Which Wireshark filter options would you use to filter the results? Complete the command by selecting the correct option from each drop-down list.
Note: You will receive partial credit for each correct selection.

正解：

Explanation:
To capture packets sent to and received from the URL https://www.companypro.net:7100/api using
Wireshark, you would use the following filter options:
Protocol: tcp
Filter Type: port
Port Number: 7100
This filter setup in Wireshark will display all TCP packets that are sent to or received from port 7100, which is the port specified in the URL for the API service. Since HTTPS typically uses TCP as the transport layer protocol, filtering by TCP and the specific port number will help isolate the relevant packets for troubleshooting the app's data download issues.
tcp: The app is using HTTPS, which relies on the TCP protocol for communication.
port: The specific port number used by the application, which in this case is 7100.
7100: This is the port specified in the URL (https://www.companypro.net:7100/api).
This filter will capture all TCP traffic on port 7100, allowing you to analyze the packets related to the application's data download.
Reference: Wireshark Filters: Wireshark Display Filters

A help desk technician receives the four trouble tickets listed below.
Which ticket should receive the highest priority and be addressed first?

• A.Ticket 1: A user requests relocation of a printer to a different network jack in the same office. The jack must be patched and made active.
• B.Ticket 3: A user reports that response time for a cloud-based application is slower than usual.
• C.Ticket 2: An online webinar is taking place in the conference room. The video conferencing equipment lost internet access.
• D.Ticket 4: Two users report that wireless access in the cafeteria has been down for the last hour.

Which standard contains the specifications for Wi-Fi networks?

• A.IEEE 802.3
• B.IEEE 802.11
• C.EIA/TIA 568A
• D.LTE
• E.GSM

You want to store files that will be accessible by every user on your network.
Which endpoint device do you need?

• A.Server
• B.Access point
• C.Switch
• D.Hub

HOTSPOT
You want to list the IPv4 addresses associated with the host name www.companypro.net.
Complete the command by selecting the correct option from each drop-down list.

正解：

Explanation:
To list the IPv4 addresses associated with the host name www.companypro.net, you should use the following command:
nslookup www.companypro.net
This command will query the DNS servers to find the IP address associated with the hostname provided. If you want to ensure that it returns the IPv4 address, you can specify the -type=A option, which stands for Address records that hold IPv4 addresses1. However, the nslookup command by default should return the IPv4 address if available.
To list the IPv4 addresses associated with the host name www.companypro.net, you should use the nslookup command.
Command: nslookup
Target: www.companypro.net
So, the completed command is:
nslookup www.companypro.net
nslookup: This command is used to query the Domain Name System (DNS) to obtain domain name or IP address mapping or for any other specific DNS record.
www.companypro.net: This is the domain name you want to query to obtain its associated IP addresses.
Reference: Using nslookup: nslookup Command Guide