CCNA Tutorial 1.1-1.13 – Network Fundamentals

ByMehran

Quiz – CCNA 1 Network Fundamentals

Multiple Choice (50 questions)

1.1 Network Components

  1. Which device forwards traffic using MAC addresses?
    • A) Router
    • B) Switch
    • C) Firewall
    • D) Server
  2. Which device forwards traffic between different networks?
    • A) Switch
    • B) Router
    • C) NIC
    • D) Access Point
  3. Which device manages multiple access points in an enterprise network?
    • A) Switch
    • B) Wireless LAN Controller
    • C) Router
    • D) Firewall
  4. Which device provides both data and power over the same cable?
    • A) Router
    • B) Switch
    • C) PoE-capable switch
    • D) Firewall

1.2 Network Topologies

  1. Which topology has access and distribution layers only?
    • A) Two-tier
    • B) Three-tier
    • C) Spine-leaf
    • D) Mesh
  2. Which topology includes an additional core layer?
    • A) Two-tier
    • B) Three-tier
    • C) Spine-leaf
    • D) SOHO
  3. Spine-leaf is optimized for which traffic pattern?
    • A) North-south
    • B) East-west
    • C) Broadcast
    • D) VPN
  4. A SOHO network typically uses which device?
    • A) Dedicated core switch
    • B) MPLS edge router
    • C) All-in-one router with Wi-Fi
    • D) Firewall cluster

1.3 Interfaces and Cabling

  1. Which type of fiber is best for long distances?
    • A) Multimode
    • B) Single-mode
    • C) Coaxial
    • D) Copper
  2. Which is the maximum recommended distance for copper UTP Ethernet?
  • A) 10 m
  • B) 100 m
  • C) 1000 m
  • D) 10 km
  1. Which connector is most common for Ethernet copper cabling?
  • A) SC
  • B) RJ-45
  • C) LC
  • D) BNC
  1. Which Ethernet design causes collisions?
  • A) Shared media (hubs)
  • B) Point-to-point (switches)
  • C) Full-duplex links
  • D) VLANs

1.4 Interface Issues

  1. A frame smaller than 64 bytes is called a:
  • A) Giant
  • B) Runt
  • C) CRC
  • D) Late
  1. Which issue occurs when one side is full-duplex and the other is half-duplex?
  • A) Speed mismatch
  • B) Duplex mismatch
  • C) Collision domain error
  • D) Runt
  1. A corrupted frame with bad checksum is a:
  • A) Runt
  • B) Giant
  • C) CRC error
  • D) Late collision

1.5 TCP vs UDP

  1. Which protocol provides reliable delivery?
  • A) TCP
  • B) UDP
  • C) ICMP
  • D) ARP
  1. Which protocol is faster with lower overhead?
  • A) TCP
  • B) UDP
  • C) ICMP
  • D) ARP
  1. Which protocol uses three-way handshake?
  • A) TCP
  • B) UDP
  • C) HTTP
  • D) DNS
  1. Which protocol is best for VoIP and gaming?
  • A) TCP
  • B) UDP
  • C) ICMP
  • D) ARP

1.6 IPv4 Addressing

  1. What is the default mask for a Class C network?
  • A) 255.255.0.0
  • B) 255.255.255.0
  • C) 255.0.0.0
  • D) 255.255.255.252
  1. How many usable hosts are in a /26 network?
  • A) 30
  • B) 62
  • C) 126
  • D) 254
  1. Which command assigns an IPv4 address to a Cisco interface?
  • A) ip address
  • B) ifconfig
  • C) ip route
  • D) show running-config
  1. Which address is a loopback in IPv4?
  • A) 127.0.0.1
  • B) 192.168.1.1
  • C) 169.254.0.1
  • D) 224.0.0.5

1.7 Private IPv4

  1. Which is the private Class A range?
  • A) 192.168.0.0/16
  • B) 172.16.0.0/12
  • C) 10.0.0.0/8
  • D) 224.0.0.0/4
  1. Which is the private Class C range?
  • A) 10.0.0.0/8
  • B) 192.168.0.0/16
  • C) 172.16.0.0/12
  • D) 169.254.0.0/16
  1. Which technology allows private addresses to access the public internet?
  • A) DHCP
  • B) NAT
  • C) DNS
  • D) ICMP

1.8 IPv6 Addressing

  1. How many bits are in an IPv6 address?
  • A) 32
  • B) 64
  • C) 128
  • D) 256
  1. Which is the IPv6 loopback address?
  • A) ::
  • B) ::1
  • C) FE80::1
  • D) 2000::1
  1. IPv6 link-local addresses always start with:
  • A) 2000::/3
  • B) FE80::/10
  • C) FC00::/7
  • D) FF00::/8
  1. Which command shows IPv6 interfaces on Cisco IOS?
  • A) show ip interface brief
  • B) show ipv6 interface brief
  • C) show running-config
  • D) show arp

1.9 IPv6 Address Types

  1. Which prefix is used for global unicast addresses?
  • A) 2000::/3
  • B) FE80::/10
  • C) FC00::/7
  • D) FF00::/8
  1. Which prefix is used for unique local addresses?
  • A) 2000::/3
  • B) FE80::/10
  • C) FC00::/7
  • D) FF00::/8
  1. Which IPv6 multicast address is for all routers?
  • A) FF02::1
  • B) FF02::2
  • C) FF02::5
  • D) FF02::A
  1. Modified EUI-64 generates an interface ID from which value?
  • A) Subnet mask
  • B) MAC address
  • C) IP address
  • D) Hostname

1.10 Verify Client IP

  1. Which Windows command shows IP, mask, and gateway?
  • A) ipconfig /all
  • B) ifconfig
  • C) netstat
  • D) route print
  1. Which Linux command is the modern replacement for ifconfig?
  • A) ip addr show
  • B) netsh
  • C) arp -a
  • D) route print
  1. Which Mac OS command shows the default gateway?
  • A) netstat -nr
  • B) arp -a
  • C) traceroute
  • D) ping6

1.11 Wireless Principles

  1. How many nonoverlapping channels exist in 2.4 GHz Wi-Fi (US)?
  • A) 1
  • B) 3
  • C) 11
  • D) 13
  1. What is the purpose of an SSID?
  • A) Identifies the wireless network name
  • B) Encrypts data
  • C) Assigns IP addresses
  • D) Prevents interference
  1. Which Wi-Fi encryption standard is the most secure today?
  • A) WEP
  • B) WPA
  • C) WPA2
  • D) WPA3
  1. RF stands for:
  • A) Router Forwarding
  • B) Radio Frequency
  • C) Random Frame
  • D) Reliable Forwarding

1.12 Virtualization Fundamentals

  1. Which software manages virtual machines?
  • A) VRF
  • B) Hypervisor
  • C) NAT
  • D) DHCP
  1. Which type of hypervisor runs directly on hardware?
  • A) Type 1
  • B) Type 2
  • C) Container
  • D) VM
  1. Which is a lightweight virtualization method for apps?
  • A) Containers
  • B) Hypervisors
  • C) VRFs
  • D) VMs
  1. VRFs allow:
  • A) Multiple VLANs on a switch
  • B) Multiple routing tables on one router
  • C) Multiple SSIDs on an AP
  • D) Multiple hypervisors

1.13 Switching Concepts

  1. What is the database a switch uses for forwarding decisions?
  • A) Routing table
  • B) MAC address table
  • C) DHCP table
  • D) ARP table
  1. What happens when a switch does not know the destination MAC?
  • A) Drops the frame
  • B) Floods it out all ports except incoming
  • C) Sends it to router only
  • D) Assigns a new MAC
  1. What is the default MAC aging time on most Cisco switches?
  • A) 60s
  • B) 300s
  • C) 600s
  • D) Unlimited
  1. A broadcast frame has what destination MAC?
  • A) 00:00:00:00:00:01
  • B) FF:FF:FF:FF:FF:FF
  • C) 00:FF:00:FF:00:FF
  • D) None
  1. Which Cisco command shows the MAC address table?
  • A) show mac address-table
  • B) show arp
  • C) show running-config
  • D) show vlan brief

Fill in the Blank (10 questions)

  1. A NIC provides a unique __________ address at Layer 2.
  2. The three nonoverlapping Wi-Fi channels in 2.4 GHz (US) are __________, __________, and __________.
  3. The private Class B block is __________.
  4. IPv6 link-local addresses always begin with __________.
  5. A frame smaller than 64 bytes is called a __________.
  6. TCP establishes connections using a __________ handshake.
  7. The Cisco command to assign an IPv4 address is ip __________.
  8. VRF allows multiple __________ tables on one router.
  9. When the destination MAC is unknown, the switch __________ the frame.
  10. The most secure Wi-Fi encryption standard today is __________.

Answer Key – CCNA 1 Network Fundamentals

  1. B) Switch
  2. B) Router
  3. B) Wireless LAN Controller
  4. C) PoE-capable switch
  5. A) Two-tier
  6. B) Three-tier
  7. B) East-west
  8. C) All-in-one router with Wi-Fi
  9. B) Single-mode
  10. B) 100 m
  11. B) RJ-45
  12. A) Shared media (hubs)
  13. B) Runt
  14. B) Duplex mismatch
  15. C) CRC error
  16. A) TCP
  17. B) UDP
  18. A) TCP
  19. B) UDP
  20. B) 255.255.255.0
  21. B) 62
  22. A) ip address
  23. A) 127.0.0.1
  24. C) 10.0.0.0/8
  25. B) 192.168.0.0/16
  26. B) NAT
  27. C) 128
  28. B) ::1
  29. B) FE80::/10
  30. B) show ipv6 interface brief
  31. A) 2000::/3
  32. C) FC00::/7
  33. B) FF02::2
  34. B) MAC address
  35. A) ipconfig /all
  36. A) ip addr show
  37. A) netstat -nr
  38. B) 3
  39. A) Identifies the wireless network name
  40. D) WPA3
  41. B) Radio Frequency
  42. B) Hypervisor
  43. A) Type 1
  44. A) Containers
  45. B) Multiple routing tables on one router
  46. B) MAC address table
  47. B) Floods it out all ports except incoming
  48. B) 300s
  49. B) FF:FF:FF:FF:FF:FF
  50. A) show mac address-table
  51. MAC
  52. 1, 6, 11
  53. 172.16.0.0/12
  54. FE80::/10
  55. Runt
  56. Three-way
  57. address
  58. Routing
  59. Floods
  60. WPA3

Similar Posts

Leave a Reply