Free 100-150: Cisco Certified Support Technician (CCST) Networking Exam Questions and Answers
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Last updated: September 19, 2026
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Question #1
You want to store files that will be accessible by every user on your network. Which endpoint device do you need?
Please select an optionIncorrectCorrect answer: B
To store files that will be accessible by every user on a network, you would need a server. A server is a computer system that provides data to other computers. It can serve data to systems on a local network (LAN) or a wide network (WAN) over the internet. In this context, a file server would be set up to store and manage files, allowing users on the network to access them from their own devices1. References := • What is a Server? • Understanding Servers and Their Functions A server is a computer designed to process requests and deliver data to other computers over a local network or the internet. In this case, to store files that will be accessible by every user on the network, a file server is the appropriate endpoint device. It provides a centralized location for storing and managing files, allowing users to access and share files easily. • A. Access point: Provides wireless connectivity to a network. • C. Hub: A basic networking device that connects multiple Ethernet devices together, making them act as a single network segment. • D. Switch: A networking device that connects devices on a computer network by using packet switching to forward data to the destination device. Thus, the correct answer is B. Server. References := • File Server Overview (Cisco) • Server Roles in Networking (Cisco)
Was this answer correct?Question #2
A user initiates a trouble ticket stating that an external web page is not loading. You determine that other resources both internal and external are still reachable. Which command can you use to help locate where the issue is in the network path to the external web page?
Please select an optionIncorrectCorrect answer: B
The tracert command is used to determine the route taken by packets across an IP network. When a user reports that an external web page is not loading, while other resources are accessible, it suggests there might be an issue at a certain point in the network path to the specific web page. The tracert command helps to diagnose where the breakdown occurs by displaying a list of routers that the packets pass through on their way to the destination. It can identify the network segment where the packets stop progressing, which is valuable for pinpointing where the connectivity issue lies. References := Cisco CCST Networking Certification FAQs – CISCONET Training Solutions, Command Prompt (CMD): 10 network-related commands you should know, Network Troubleshooting Commands Guide: Windows, Mac & Linux - Comparitech, How to Use the Traceroute and Ping Commands to Troubleshoot Network, Network Troubleshooting Techniques: Ping, Traceroute, PathPing. •tracert Command: This command is used to determine the path packets take to reach a destination. It lists all the hops (routers) along the way and can help identify where the delay or failure occurs. •ping -t: This command sends continuous ping requests and is useful for determining if a host is reachable but does not provide path information. •ipconfig /all: This command displays all current TCP/IP network configuration values and can be used to verify network settings but not to trace a network path. •nslookup: This command queries the DNS to obtain domain name or IP address mapping, useful for DNS issues but not for tracing network paths. References: •Microsoft tracert Command: tracert Command Guide •Troubleshooting Network Issues with tracert: Network Troubleshooting Guide
Was this answer correct?Question #3
Which two statements are true about the IPv4 address of the default gateway configured on a host? (Choose 2.) Note: You will receive partial credit for each correct selection.
Select 2 answers.
Please select an optionIncorrectCorrect answer: B, D
•Statement B: "The same default gateway IPv4 address is configured on each host on the local network." This is true because all hosts on the same local network (subnet) use the same default gateway IP address to send packets destined for other networks. •Statement D: "The default gateway is the IPv4 address of the router interface connected to the same local network as the host." This is true because the default gateway is the IP address of the router's interface that is directly connected to the local network. •Statement A: "The IPv4 address of the default gateway must be the first host address in the subnet." This is not necessarily true. The default gateway can be any address within the subnet range. •Statement C: "The default gateway is the Loopback0 interface IPv4 address of the router connected to the same local network as the host." This is not true; the default gateway is the IP address of the router's physical or logical interface connected to the local network. •Statement E: "Hosts learn the default gateway IPv4 address through router advertisement messages." This is generally true for IPv6 with Router Advertisement (RA) messages, but not typically how IPv4 hosts learn the default gateway address. References: •Cisco Default Gateway Configuration: Cisco Default Gateway
Was this answer correct?Question #4
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?
Please select an optionIncorrectCorrect answer: C
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. References := •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. References: •Cisco VLAN Configuration Guide: Cisco VLAN Configuration •Understanding and Configuring VLANs: VLANs Guide
Was this answer correct?Question #5
Which address is included in the 192.168.200.0/24 network?
Please select an optionIncorrectCorrect answer: B
•192.168.200.0/24 Network: This subnet includes all addresses from 192.168.200.0 to 192.168.200.255. The /24 indicates a subnet mask of 255.255.255.0, which allows for 256 addresses. •192.168.199.13: This address is in the 192.168.199.0/24 subnet, not the 192.168.200.0/24 subnet. •192.168.200.13: This address is within the 192.168.200.0/24 subnet. •192.168.201.13: This address is in the 192.168.201.0/24 subnet, not the 192.168.200.0/24 subnet. •192.168.1.13: This address is in the 192.168.1.0/24 subnet, not the 192.168.200.0/24 subnet. References: •Subnetting Guide: Subnetting Basics
Was this answer correct?Question #6
A support technician examines the front panel of a Cisco switch and sees 4 Ethernet cables connected in the first four ports. Ports 1, 2, and 3 have a green LED. Port 4 has a blinking green light. What is the state of the Port 4?
Please select an optionIncorrectCorrect answer: C
On a Cisco switch, a port with a blinking green LED typically indicates that the port is up (active) and is currently transmitting or receiving data. This is a normal state indicating active traffic on the port. •A. Link is up with cable malfunctions: Usually indicated by an amber or blinking amber light. •B. Link is up and not stable: Not typically indicated by a green blinking light. •D. Link is up and there is no activity: Would be indicated by a solid green light without blinking. Thus, the correct answer is C. Link is up and active. References := •Cisco Switch LED Indicators •Cisco Ethernet Switch LED Patterns
Was this answer correct?Question #7
A local company requires two networks in two new buildings. The addresses used in these networks must be in the private network range. Which two address ranges should the company use? (Choose 2.) Note: You will receive partial credit for each correct selection.
Select 2 answers.
Please select an optionIncorrectCorrect answer: A, D
The private IP address ranges that are set aside specifically for use within private networks and not routable on the internet are as follows: • Class A: 10.0.0.0 to 10.255.255.255 • Class B: 172.16.0.0 to 172.31.255.255 • Class C: 192.168.0.0 to 192.168.255.255 These ranges are defined by the Internet Assigned Numbers Authority (IANA) and are used for local communications within a private network123. Given the options: A. 172.16.0.0 to 172.31.255.255 falls within the Class B private range. * B. 192.16.0.0 to 192.16.255.255 is not a recognized private IP range. C. 11.0.0.0 to 11.255.255.255 is not a recognized private IP range. D. 192.168.0.0 to 192.168.255.255 falls within the Class C private range. Therefore, the correct selections that the company should use for their private networks are A and D. References := • Reserved IP addresses on Wikipedia • Private IP Addresses in Networking - GeeksforGeeks • Understanding Private IP Ranges, Uses, Benefits, and Warnings
Was this answer correct?Question #8
A help desk technician receives the four trouble tickets listed below. Which ticket should receive the highest priority and be addressed first?
Please select an optionIncorrectCorrect answer: B
When prioritizing trouble tickets, the most critical issues affecting business operations or high-impact activities should be addressed first. Here's a breakdown of the tickets: • Ticket 1: Relocation of a printer, while necessary, is not urgent and does not impact critical operations. • Ticket 2: An ongoing webinar losing internet access is critical, especially if the webinar is time-sensitive and involves multiple participants. • Ticket 3: Slower response time for a cloud-based application is important but typically not as urgent as a complete loss of internet access for a live event. • Ticket 4: Wireless access down in the cafeteria affects users but does not have the same immediate impact as a live webinar losing connectivity. Thus, the correct answer is B. Ticket 2: An online webinar is taking place in the conference room. The video conferencing equipment lost internet access. References := • IT Help Desk Best Practices • Prioritizing IT Support Tickets
Was this answer correct?Question #9
You plan to use a network firewall to protect computers at a small office. For each statement about firewalls, select True or False. Note: You will receive partial credit for each correct selection.
Answer Yes or No for each statement in the exhibit.
Please select an optionIncorrectCorrect answer: True, True, False
True: a firewall can redirect web traffic to a specific IP address using NAT/port forwarding. True: a firewall can block traffic to specific ports on internal computers. False: preventing specific apps from running on a computer requires endpoint or application-control software, not a network firewall.
Question #10
Which protocol allows you to securely upload files to another computer on the internet?
Please select an optionIncorrectCorrect answer: A
SFTP, or Secure File Transfer Protocol, is a protocol that allows for secure file transfer capabilities between networked hosts. It is a secure extension of the File Transfer Protocol (FTP). SFTP encrypts both commands and data, preventing passwords and sensitive information from being transmitted openly over the network. It is typically used for secure file transfers over the internet and is built on the Secure Shell (SSH) protocol1. References := •What Is SFTP? (Secure File Transfer Protocol) •How to Use SFTP to Safely Transfer Files: A Step-by-Step Guide •Secure File Transfers: Best Practices, Protocols And Tools The Secure File Transfer Protocol (SFTP) is a secure version of the File Transfer Protocol (FTP) that uses SSH (Secure Shell) to encrypt all commands and data. This ensures that sensitive information, such as usernames, passwords, and files being transferred, are securely transmitted over the network. •ICMP (Internet Control Message Protocol) is used for network diagnostics and is not designed for file transfer. •NTP (Network Time Protocol) is used to synchronize clocks between computer systems and is not related to file transfer. •HTTP (HyperText Transfer Protocol) is used for transmitting web pages over the internet and does not inherently provide secure file transfer capabilities. Thus, the correct protocol that allows secure uploading of files to another computer on the internet is SFTP. References := •Cisco Learning Network •SFTP Overview (Cisco)
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