CCNA Course: 25 Practice Questions to Boost Your Networking Knowledge

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25 Practice Questions to Boost Your Networking Knowledge

The CCNA (Cisco Certified Network Associate) course is one of the most popular certifications for IT professionals seeking to build a career in networking. Preparing with practice questions can help you understand the key concepts and exam pattern. Below are 25 multiple-choice questions (MCQs) designed to give you an idea of what to expect when studying for the CCNA course.

CCNA Course MCQs

Q1. Which protocol is used to find the hardware address of a host from its IP address?
 a) DNS
 b) ARP
 c) ICMP
 d) RARP
 Answer: b) ARP

Q2. What is the default administrative distance of a static route in Cisco devices?
 a) 0
 b) 1
 c) 90
 d) 120
 Answer: b) 1

Q3. Which layer of the OSI model is responsible for reliable end-to-end communication?
 a) Transport
 b) Network
 c) Data Link
 d) Application
 Answer: a) Transport

Q4. The maximum number of usable host IP addresses in a /29 subnet is:
 a) 6
 b) 8
 c) 14
 d) 30
 Answer: a) 6

Q5. Which command is used to check the routing table in a Cisco router?
 a) show ip protocol
 b) show ip route
 c) show interface
 d) show run
 Answer: b) show ip route

Q6. Which IPv6 address type is equivalent to IPv4 private addresses?
 a) Global Unicast
 b) Multicast
 c) Unique Local Address (ULA)
 d) Link-Local Address
 Answer: c) Unique Local Address (ULA)

Q7. What does VLAN stand for?
 a) Virtual Local Access Network
 b) Virtual Local Area Network
 c) Variable LAN
 d) Virtual LAN Assignment Node
 Answer: b) Virtual Local Area Network

Q8. Which protocol is used for secure remote device management?
 a) Telnet
 b) FTP
 c) SSH
 d) SNMP
 Answer: c) SSH

Q9. What is the default port number of HTTPS?
 a) 20
 b) 22
 c) 80
 d) 443
 Answer: d) 443

Q10. Which Cisco command saves the running configuration to the startup configuration?
 a) copy running-config startup-config
 b) write erase
 c) show run
 d) config save
 Answer: a) copy running-config startup-config

Q11. Which protocol works at Layer 2 of the OSI model to prevent switching loops?
 a) STP
 b) OSPF
 c) EIGRP
 d) BGP
 Answer: a) STP

Q12. The IP address range 192.168.0.0 to 192.168.255.255 belongs to which class?
 a) Class A
 b) Class B
 c) Class C
 d) Class D
 Answer: c) Class C

Q13. What is the maximum cable length of a Cat5e Ethernet cable for 1000 Mbps speed?
 a) 50m
 b) 75m
 c) 100m
 d) 120m
 Answer: c) 100m

Q14. Which protocol does OSPF use for routing updates?
 a) TCP
 b) UDP
 c) ICMP
 d) IP
 Answer: d) IP

Q15. Which type of NAT maps multiple private IPs to a single public IP?
 a) Static NAT
 b) Dynamic NAT
 c) PAT (Port Address Translation)
 d) NAT Overload
 Answer: c) PAT (Port Address Translation)

Q16. Which device operates only at Layer 1 of the OSI model?
 a) Switch
 b) Router
 c) Hub
 d) Bridge
 Answer: c) Hub

Q17. Which IP protocol number is used by ICMP?
 a) 1
 b) 6
 c) 17
 d) 89
 Answer: a) 1

Q18. The command to assign an IP address to a Cisco router interface is:
 a) ip assign
 b) IP address [IP] [Subnet]
 c) set ip [IP] [Mask]
 d) config ip [IP] [Mask]
 Answer: b) IP address [IP] [Subnet]

Q19. Which protocol is used by Ping to test connectivity?
 a) ICMP
 b) TCP
 c) UDP
 d) ARP
 Answer: a) ICMP

Q20. In subnetting, the formula for usable hosts is:
 a) 2^n
 b) 2^n – 1
 c) 2^n – 2
 d) 2^n – 3
 Answer: c) 2^n – 2

Q21. Which routing protocol uses cost as a metric?
 a) RIP
 b) OSPF
 c) EIGRP
 d) BGP
 Answer: b) OSPF

Q22. A switch forwards a broadcast frame to:
 a) Only one port
 b) All ports except the incoming port
 c) All ports, including the incoming port
 d) None
 Answer: b) All ports except the incoming port

Q23. Which of the following is a distance-vector protocol?
 a) OSPF
 b) EIGRP
 c) RIP
 d) IS-IS
 Answer: c) RIP

Q24. Which layer of the OSI model ensures data encryption?
 a) Network
 b) Presentation
 c) Transport
 d) Application
 Answer: b) Presentation

Q25. The CCNA course mainly focuses on which type of skills?
 a) Programming Skills
 b) Networking Skills
 c) Database Skills
 d) AI & ML Skills
 Answer: b) Networking Skills

Final Note

The CCNA course is designed to provide you with a strong foundational knowledge of networking. By practicing questions like these, you can improve your confidence and get familiar with the real exam pattern. Consistent practice is the key to success in the CCNA certification. With TrainingX’s expert-led CCNA program, you can master concepts faster and secure placement opportunities to build a successful networking career.

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