CCST Networking Fundamentals 3 — Questions and Answers
Question 1: What is the purpose of the ARP protocol?
- Translate domain names to IP addresses
- Map IP addresses to MAC addresses (Correct answer)
- Assign IP addresses dynamically
- Encrypt data during transmission
Correct answer: Map IP addresses to MAC addresses
ARP (Address Resolution Protocol) resolves a known IP address to its corresponding MAC address on a local network segment.
Question 2: Which cable type uses light pulses to transmit data and is immune to electromagnetic interference?
- Cat5e
- Coaxial
- Fiber optic (Correct answer)
- Cat6a
Correct answer: Fiber optic
Fiber optic cable transmits data as pulses of light through glass or plastic strands, making it immune to EMI and capable of long-distance transmission.
Question 3: A device receives the IP address 169.254.45.10 automatically. What does this indicate?
- The DHCP server assigned a static address
- The device is using a public IP address
- DHCP was unavailable and APIPA assigned a link-local address (Correct answer)
- The default gateway is unreachable
Correct answer: DHCP was unavailable and APIPA assigned a link-local address
A 169.254.x.x address is an APIPA (Automatic Private IP Addressing) address assigned by Windows when no DHCP server is reachable.
Question 4: Which topology connects all devices to a single central device such as a switch or hub?
- Ring
- Mesh
- Bus
- Star (Correct answer)
Correct answer: Star
In a star topology, all end devices connect to a central switch or hub, making troubleshooting easier and limiting the impact of a single cable failure.
Question 5: What is the maximum cable length for a standard Cat5e or Cat6 Ethernet run?
- 50 meters
- 100 meters (Correct answer)
- 150 meters
- 200 meters
Correct answer: 100 meters
IEEE 802.3 standards specify a maximum horizontal cable run of 100 meters (328 feet) for copper Ethernet (Cat5e/Cat6).
Question 6: Which command on a Windows PC displays the routing table?
- ipconfig /route
- netstat -r
- route print (Correct answer)
- arp -a
Correct answer: route print
'route print' displays the IPv4 and IPv6 routing tables on a Windows system, showing network destinations, gateways, and interfaces.
Question 7: How many usable host addresses are available in a /30 subnet?
- 2 (Correct answer)
- 4
- 6
- 8
Correct answer: 2
A /30 subnet has 4 total addresses: 1 network address, 1 broadcast address, and 2 usable host addresses — commonly used for point-to-point links.
CCST Networking Fundamentals 3
What is the purpose of the ARP protocol?