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Cisco CCST-Networking Exam
Cisco Certified Support Technician (CCST) Networking (Page 3 )

Updated On: 1-Feb-2026
Page 2 of 9
PDF with 40 Questions

What is the most compressed valid format of the IPv6 address 2001 :0db8:0000:0016:0000:001b: 2000:0056?

  1. 2001:db8: : 16: : 1b:2:56
  2. 2001:db8: : 16: : 1b: 2000: 56
  3. 2001:db8: 16: :1b:2:56
  4. 2001:db8: 0:16: :1b: 2000:56

Answer(s): D

Explanation:

IPv6 addresses can be compressed by removing leading zeros and replacing consecutive groups of zeros with a double colon (::). Here's how to compress the address 2001:0db8:0000:0016:0000:001b:2000:0056:

Remove leading zeros from each segment:

2001:db8:0000:0016:0000:001b:2000:0056 becomes 2001:db8:0:16:0:1b:2000:56

Replace the longest sequence of consecutive zeros with a double colon (::). In this case, the two consecutive zeros between the 16 and 1b:

2001:db8:0:16::1b:2000:56

Thus, the most compressed valid format of the IPv6 address is 2001:db8:0:16::1b:2000:56.


Reference:

Cisco Learning Network

IPv6 Addressing (Cisco)



DRAG DROP (Drag and Drop is not supported)

Move the security options from the list on the left to its characteristic on the right. You may use each security option once, more than once, or not at all.

Note: You will receive partial credit for each correct answer.

  1. See Explanation section for answer.

Answer(s): A

Explanation:

The correct matching of the security options to their characteristics is as follows:

WPA2-Enterprise: Uses a RADIUS server for authentication

WEP: Uses a minimum of 40 bits for encryption

WPA2-Personal: Uses AES and a pre-shared key for authentication

Here's why each security option matches the characteristic:

WPA2-Enterprise uses a RADIUS server for authentication, which provides centralized Authentication, Authorization, and Accounting (AAA) management for users who connect and use a network service.

WEP (Wired Equivalent Privacy) is an outdated security protocol that uses a minimum of 40 bits for encryption (and up to 104 bits), which is relatively weak by today's standards.

WPA2-Personal (Wi-Fi Protected Access 2 - Personal) uses the Advanced Encryption Standard (AES) for encryption and a pre-shared key (PSK) for authentication, which is shared among users to access the network.

These security options are essential for protecting wireless networks from unauthorized access and ensuring data privacy.



HOTSPOT (Drag and Drop is not supported)

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.

  1. See Explanation section for answer.

Answer(s): A

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



HOTSPOT (Drag and Drop is not supported)

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.

  1. See Explanation section for answer.

Answer(s): A

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.

cp: 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



An engineer configured a new VLAN named VLAN2 for the Data Center team.
When the team tries to ping addresses outside VLAN2 from a computer in

VLAN2, they are unable to reach them.

What should the engineer configure?

  1. Additional VLAN
  2. Default route
  3. Default gateway
  4. Static route

Answer(s): C

Explanation:

When devices within a VLAN are unable to reach addresses outside their VLAN, it typically indicates that they do not have a configured path to external networks. The engineer should configure a default gateway for VLAN2. The default gateway is the IP address of the router's interface that is connected to the VLAN, which will route traffic from the VLAN to other networks12.


Reference:

· Understanding and Configuring VLAN Routing and Bridging on a Router Using the IRB Feature

· VLAN 2 not able to ping gateway - Cisco Community

=========================

· VLANs: Virtual Local Area Networks (VLANs) logically segment network traffic to improve security and performance. Devices within the same VLAN can communicate directly.

· Default Gateway: For devices in VLAN2 to communicate with devices outside their VLAN, they need a default gateway configured. The default gateway is typically a router or Layer 3 switch that routes traffic between different VLANs and subnets.

· Additional VLAN: Not needed in this scenario as the issue is related to routing traffic outside VLAN2, not creating another VLAN.

· Default Route: While a default route on the router may be necessary, the primary issue for devices within VLAN2 is to have a configured default gateway.

· Static Route: This is used on routers to manually specify routes to specific networks but does not address the need for a default gateway on the client devices.


· Cisco VLAN Configuration Guide: Cisco VLAN Configuration

· Understanding and Configuring VLANs: VLANs Guide



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