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Cisco Certified Support Technician (CCST) Networking - Blueprint Practice Exam 1

Suggested duration: 40 minutes

Exam code: 100-150

By Oleksandr Andrushchenko — Published on

40 questions ยท Free

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40 original practice questions aligned to the current exam outline, with explanations for every option. Fixed-length choice-based practice; official exam length, adaptive delivery, labs and scaled scoring are not reproduced.

Questions — 40

  1. A /24 IPv4 network is divided into four equal conventional subnets. What is each resulting prefix?
  2. A backup transfers 100 megabytes over an otherwise idle 100-megabit-per-second link. What is the ideal minimum duration, ignoring overhead?
  3. A browser resolves a hostname before contacting its web server. Which service provides that mapping?
  4. A Cisco technician needs interface IP addresses and basic up/down status quickly. Which command is appropriate?
  5. A client sends an HTTPS request using TCP. Which destination port is the conventional default?
  6. A company wants one device to connect wired clients and wireless clients locally. Which function admits Wi-Fi clients?
  7. A copper network link is required across 500 meters between buildings. Which alternative best addresses distance and electrical isolation?
  8. A copper port shows increasing CRC errors after a desk move. What should be checked first?
  9. A fiber link's transmit and receive strands are reversed at one endpoint. What is the likely symptom?
  10. A guest network must not reach internal payroll servers. What control directly enforces this boundary?
  11. A host can ping a web server's IP address but its hostname fails to resolve. What should be investigated?
  12. A host is 10.4.8.20/24. Which destination should it normally reach directly without routing?
  13. A laptop reaches local peers but cannot reach any remote subnet. Its mask is correct. Which setting should be checked?
  14. A new workstation needs an IP address, subnet mask, gateway and DNS servers automatically. Which service supplies these?
  15. A phone or laptop is missing after a conference. What is the technician's first organizational step?
  16. A ping fails but the destination application works. Which conclusion is best?
  17. A server must be reachable from clients in two different VLANs. Which network function is required between those VLANs?
  18. A small network uses PAT for Internet access. Which address does a public server normally see as the client's source?
  19. A support account only needs read-only device diagnostics. Which permission approach is appropriate?
  20. A technician compares TCP and UDP for a reliable file transfer. Which TCP behavior is relevant?
  21. A technician repairs a wrong gateway and connectivity returns. What should happen before closing the ticket?
  22. A technician replaces a transceiver. What must be verified besides fitting the socket?
  23. A user reports that one website fails while other services work. What should the technician establish first?
  24. A video call remains connected but audio arrives irregularly. Which measurement most directly describes varying packet arrival delay?
  25. A Windows technician needs to display address configuration and DHCP information. Which command is appropriate?
  26. A wireless network uses one shared password. Which change supports individual employee authentication?
  27. A workstation has 169.254.18.9 after startup and cannot reach the routed office network. What is the likely issue?
  28. A workstation has Wi-Fi disabled but a working Ethernet connection. What identifies its wired network interface at Layer 2?
  29. An administrator must securely manage a switch remotely through its CLI. Which protocol is appropriate?
  30. An AP receives both power and connectivity through one Ethernet cable. Which switch capability enables this?
  31. An employee receives an unsolicited message asking for a switch password. What is the best response?
  32. An IPv4 /29 is used as a conventional LAN subnet. How many usable host addresses are available?
  33. An office switch connects local workstations; a router connects the office to a provider. What distinguishes their usual roles?
  34. An unused access port is available in a public lobby. Which hardening action is most appropriate?
  35. Nearby APs use overlapping 2.4 GHz channels and users see poor throughput. Which change is appropriate?
  36. Two departments share one switch but should be separate Layer 2 broadcast domains. What should be configured?
  37. Two hosts are assigned the same static IPv4 address on one subnet. What is the likely result?
  38. Which IPv4 address belongs to the private address space defined for internal networks?
  39. Which notation correctly compresses IPv6 address 2001:0db8:0000:0000:0000:0000:0000:0025?
  40. Which tool helps identify successive routed hops toward a destination?

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