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Beginner ~10 min

Network+

This assessment covers core networking concepts commonly expected of entry-level IT and network support professionals. Topics include network types and topologies, basic routing and switching, IP addressing, ports and protocols, wired and wireless technologies, network security fundamentals, and basic troubleshooting concepts.

Progress: 0/20

Beginner � ~10 min

Q1. What does the OSI model layer 3 primarily handle?

Select one answer � 1 pt

Physical signaling Framing Error detection Routing and logical addressing

Q2. Which protocol is used to resolve an IP address to a MAC address?

Select one answer � 1 pt

ARP ICMP DHCP DNS

Q3. What type of cable is MOST commonly used to connect a switch to a router?

Select one answer � 1 pt

Fiber optic Straight-through Ethernet Crossover Ethernet Rollover cable

Q4. Which port does HTTPS use by default?

Select one answer � 1 pt

80 443 21 3389

Q5. What device operates at Layer 2 of the OSI model?

Select one answer � 1 pt

Switch Router Load balancer Firewall

Q6. What is the purpose of NAT (Network Address Translation)?

Select one answer � 1 pt

Allow private IP addresses to access public networks Assign IP addresses automatically Encrypt network traffic Convert MAC addresses to IP addresses

Q7. Which wireless standard operates exclusively on the 5 GHz band?

Select one answer � 1 pt

802.11b 802.11g 802.11n 802.11ac

Q8. What is the maximum distance for a standard Ethernet cable (Cat 5e/6)?

Select one answer � 1 pt

50 meters 100 meters 500 meters 185 meters

Q9. Which protocol is connectionless?

Select one answer � 1 pt

FTP SSH UDP TCP

Q10. What does a subnet mask do?

Select one answer � 1 pt

Translate domain names Encrypt traffic Assign IP addresses Identify the network and host portions of an IP address

Q11. Which tool would you use to test connectivity between two devices?

Select one answer � 1 pt

netstat ping traceroute nslookup

Q12. What topology uses a single central device?

Select one answer � 1 pt

Bus Star Ring Mesh

Q13. Which protocol uses port 22?

Select one answer � 1 pt

SFTP SSH SNMP Telnet

Q14. What type of IP address is 169.254.x.x?

Select one answer � 1 pt

Loopback Multicast APIPA Public

Q15. Which DNS record maps a hostname to an IP address?

Select one answer � 1 pt

PTR CNAME A MX

Q16. What does PoE stand for?

Select one answer � 1 pt

Packet over Ethernet Power over Ethernet Port over Ethernet Protocol over Ethernet

Q17. Which device separates broadcast domains?

Select one answer � 1 pt

Access point Router Switch Hub

Q18. What is the main purpose of a firewall?

Select one answer � 1 pt

Filter traffic based on rules Improve wireless speed Monitor cable integrity Assign IP addresses

Q19. Which protocol is used to automatically assign IP addresses?

Select one answer � 1 pt

DNS ARP DHCP SNMP

Q20. What command shows the path packets take to a destination?

Select one answer � 1 pt

arp ipconfig tracert ping

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