Cisco 100-150 CCST Networking Exam Practice Questions
US$39
Every question with the correct answer and why the other options are wrong.
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TBH these dumps are an essential resource for anyone pursuing the CCST-Networking certification in 2025. Thnks certstash.
Three of the 75 questions in this pack
Question 1
What is the most compressed valid format of the IPv6 address 2001:0db8:0000:0016:0000:001b:2000:0056?
Show answer and explanation
Correct answer: A. 2001:db8:0:16::1b:2000:56
IPv6 addresses are compressed by removing leading zeros in each hextet and replacing one contiguous sequence of all-zero hextets with a double colon (::). In 2001:0db8:0000:0000:0000:001b:2000:0056, the four consecutive zero hextets (positions 3-6) are replaced with ::, yielding 2001:db8::1b:2000:56. However, option A shows 2001:db8:0:16::1b:2000:56, which correctly compresses the address by removing leading zeros and applying the :: notation appropriately to the longest run of consecutive zeros.
Why the other options are wrong
- B. The double colon (::) can only be used once in an IPv6 address; using it twice is invalid.
- C. This incorrectly compresses 2000 to 2, which changes the actual hextet value.
- D. This uses the double colon twice and also incorrectly compresses 2000 to 2, both of which are invalid transformations.
Question 2
Which two statements are true about the IPv4 address of the default gateway configured on a host? (Choose two.) Note: You will receive partial credit for each correct selection.
Show answer and explanation
Correct answer: C, D. The default gateway is the IPv4 address of the router interface connected to the same local network as the host; The same default gateway IPv4 address is configured on each host on the local network.
The default gateway is the IPv4 address of the router interface on the same local network segment as the host, allowing the host to reach remote networks. All hosts on the same local network typically use the same default gateway address to route traffic outside their subnet. Option C is correct because the default gateway must be a router interface on the local network. Option D is correct because all hosts on the same subnet share the same default gateway to maintain consistent routing.
Why the other options are wrong
- A. The default gateway address does not need to be the first host address; it is simply a router interface address on the local network.
- B. The default gateway is not the Loopback0 interface; it must be a real interface connected to the same physical network as the host.
- E. Hosts typically learn the default gateway through DHCP or manual configuration, not through router advertisement messages (which are used for IPv6 prefix discovery).
Question 3
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 two.) Note: You will receive partial credit for each correct selection.
Show answer and explanation
Correct answer: B, C. 192.168.0.0 to 192.168.255.255; 172.16.0.0 to 172.31.255.255
RFC 1918 defines three ranges of private IPv4 addresses: 10.0.0.0 to 10.255.255.255, 172.16.0.0 to 172.31.255.255, and 192.168.0.0 to 192.168.255.255. Option B (192.168.0.0 to 192.168.255.255) and option C (172.16.0.0 to 172.31.255.255) are both valid private ranges that the company should use for their two networks.
Why the other options are wrong
- A. The 11.0.0.0 range is not part of the RFC 1918 private address space and is publicly routable.
- D. The 192.16.0.0 range is not a private address range; only 192.168.0.0 to 192.168.255.255 within the 192.x.x.x space is private.
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How much of the Cisco 100-150 CCST Networking bank is free?
75 questions in the bankEach step includes the one before, so buying only adds new questions.
- You are here10questionsFree sampleThree on this page, all ten as a PDF.Download the sample
- 1925% of the bankPractice pageFree on the site, every answer explained.Go to the practice page
- 2635% of the bankHalf PackFree by email, as one PDF, every answer explained.Get the Half Pack
- 75100%, the whole bankFull pack, US$39Plus the questions-only PDF, monthly updates, refund if you fail.Get the full pack
What’s in the Cisco 100-150 CCST Networking pack
- 75 questions mapped to the 100-150 CCST Networking exam topics
- Answers and explanations for every question, including the wrong options
- A questions-only PDF for timed practice runs
- Delivered by email shortly after checkout
- Free monthly updates for as long as the exam is live
- Pass or your money back
A failed 100-150 attempt costs another US$125. This pack is US$39, paid once, and refunded if you fail.
What makes the CCST Networking hard
CCST Networking is Cisco's entry point below CCNA, built for people who have never configured a network device. It runs 50 minutes with no prerequisites, is delivered by Pearson VUE and Certiport, and Cisco positions it explicitly as the stepping stone to CCNA 200-301.
What catches people out is how practical it is for a foundations exam. You are expected to check connectivity on Windows, Linux, macOS, Android and iOS, read the status lights on a Cisco device, cable a topology from an engineer's diagram, identify ports, run basic show commands, capture packets in Wireshark and save the file, interpret diagnostic command output, and follow help desk practice for ticketing and documentation. The concept side covers bandwidth versus throughput, LAN, WAN, MAN, CAN, PAN and WLAN, cloud versus on-premises, common protocols, private versus public addressing, IPv4 subnet and IPv6 prefix formats, cables and connectors, basic routing and switching, how firewalls filter traffic, and foundational security. Study it like a help desk job description rather than a theory exam and the questions make sense.
About the exam
100-150 (Cisco Certified Support Technician Networking) earns the CCST Networking certification. It covers networking standards and concepts, addressing and subnet formats, endpoints and media types, infrastructure, diagnosing problems, and security, at entry level. No prerequisites, and Cisco recommends it as preparation for CCNA 200-301.
50 minutes, US$125 per attempt, delivered by Pearson VUE and Certiport, with registration at a Pearson VUE test centre or online proctored. Cisco does not publish a fixed passing score.
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Wilson Garcia –
TBH these dumps are an essential resource for anyone pursuing the CCST-Networking certification in 2025. Thnks certstash.
Kenneth –
I had limited time to study, but Cert Stash dumps made the preparation process much easier and more efficient.