Q#1: A backbone network connects:
(A) Multiple LANs within an organization
(B) Two devices in a LAN
(C) Only wireless devices
(D) None
Answer: (A) Multiple LANs within an organization
Q#2: Backbone network types include:
(A) Collapsed, Distributed, Parallel
(B) Star only
(C) Ring only
(D) None
Answer: (A) Collapsed, Distributed, Parallel
Q#3: Collapsed backbone connects LANs through:
(A) Central device like a switch or router
(B) Direct peer-to-peer
(C) Wireless only
(D) None
Answer: (A) Central device like a switch or router
Q#4: Distributed backbone connects LANs through:
(A) Series of interconnected devices
(B) Single central device
(C) Wireless nodes only
(D) None
Answer: (A) Series of interconnected devices
Q#5: Parallel backbone provides:
(A) Redundant paths for reliability
(B) Single path
(C) Only wireless
(D) None
Answer: (A) Redundant paths for reliability
Q#6: Router operates at:
(A) Network layer
(B) Data link layer
(C) Physical layer
(D) None
Answer: (A) Network layer
Q#7: Switch operates at:
(A) Data link layer
(B) Network layer
(C) Physical layer
(D) None
Answer: (A) Data link layer
Q#8: Bridge is used to:
(A) Connect two LAN segments
(B) Connect LAN to WAN
(C) Wireless only
(D) None
Answer: (A) Connect two LAN segments
Q#9: Repeater is used to:
(A) Extend the distance of a LAN
(B) Connect networks
(C) Route packets
(D) None
Answer: (A) Extend the distance of a LAN
Q#10: VLAN (Virtual LAN) allows:
(A) Logical grouping of devices independent of physical location
(B) Physical only
(C) Wireless only
(D) None
Answer: (A) Logical grouping of devices independent of physical location
Q#11: VLAN benefits include:
(A) Security, performance, and management
(B) Only physical connectivity
(C) No segmentation
(D) None
Answer: (A) Security, performance, and management
Q#12: VLAN types:
(A) Port-based, protocol-based, MAC-based, IP subnet-based
(B) Only physical
(C) Fiber-based
(D) None
Answer: (A) Port-based, protocol-based, MAC-based, IP subnet-based
Q#13: Trunk link in VLAN carries:
(A) Multiple VLANs between switches
(B) Single VLAN
(C) Only wireless
(D) None
Answer: (A) Multiple VLANs between switches
Q#14: Access link in VLAN carries:
(A) Single VLAN
(B) Multiple VLANs
(C) Fiber only
(D) None
Answer: (A) Single VLAN
Q#15: Router-on-a-stick is used for:
(A) Inter-VLAN routing
(B) Single VLAN only
(C) Wireless LAN
(D) None
Answer: (A) Inter-VLAN routing
Q#16: Inter-VLAN routing allows:
(A) Communication between different VLANs
(B) Communication within single VLAN
(C) Wired only
(D) None
Answer: (A) Communication between different VLANs
Q#17: Backbone network speed is generally:
(A) Higher than LAN speed
(B) Same as LAN
(C) Lower than LAN
(D) None
Answer: (A) Higher than LAN speed
Q#18: Distributed backbone advantage:
(A) Scalability and easier expansion
(B) Single point failure
(C) Only wireless
(D) None
Answer: (A) Scalability and easier expansion
Q#19: Collapsed backbone disadvantage:
(A) Single point of failure
(B) Expensive
(C) Only wireless
(D) None
Answer: (A) Single point of failure
Q#20: Backbone network media include:
(A) Fiber optic, coaxial, twisted pair
(B) Wireless only
(C) Copper only
(D) None
Answer: (A) Fiber optic, coaxial, twisted pair
Q#21: VLAN tagging uses:
(A) IEEE 802.1Q standard
(B) CSMA/CD
(C) IP addresses only
(D) None
Answer: (A) IEEE 802.1Q standard
Q#22: IEEE 802.1Q tag adds:
(A) 4 bytes to Ethernet frame
(B) 2 bytes only
(C) 6 bytes
(D) None
Answer: (A) 4 bytes to Ethernet frame
Q#23: VLAN membership can be:
(A) Static or dynamic
(B) Always static
(C) Always dynamic
(D) None
Answer: (A) Static or dynamic
Q#24: Dynamic VLAN membership uses:
(A) MAC addresses to assign VLAN
(B) Port only
(C) Fiber only
(D) None
Answer: (A) MAC addresses to assign VLAN
Q#25: VLAN reduces:
(A) Broadcast domains
(B) Collisions only
(C) Physical distance
(D) None
Answer: (A) Broadcast domains
Q#26: Broadcast domain is:
(A) All devices that receive broadcast frames
(B) Single device
(C) Only wireless
(D) None
Answer: (A) All devices that receive broadcast frames
Q#27: Collision domain is:
(A) LAN segment where collisions can occur
(B) All VLANs
(C) Wireless LAN only
(D) None
Answer: (A) LAN segment where collisions can occur
Q#28: VLAN isolation improves:
(A) Security and traffic management
(B) Speed only
(C) Physical cabling
(D) None
Answer: (A) Security and traffic management
Q#29: Router connecting LANs uses:
(A) IP addresses to route packets
(B) MAC addresses only
(C) CSMA/CD
(D) None
Answer: (A) IP addresses to route packets
Q#30: Switch connecting VLANs may require:
(A) Trunk port and tagging
(B) Hub only
(C) Fiber only
(D) None
Answer: (A) Trunk port and tagging
Q#31: VLAN trunking protocol (VTP) manages:
(A) VLAN configuration across switches
(B) Data rate only
(C) CSMA/CD
(D) None
Answer: (A) VLAN configuration across switches
Q#32: Collapsed backbone uses:
(A) Core switch to connect all LANs
(B) Series of hubs
(C) Fiber only
(D) None
Answer: (A) Core switch to connect all LANs
Q#33: Backbone redundancy improves:
(A) Reliability and fault tolerance
(B) Security only
(C) Speed only
(D) None
Answer: (A) Reliability and fault tolerance
Q#34: Parallel backbone uses:
(A) Multiple redundant paths
(B) Single path
(C) Fiber only
(D) None
Answer: (A) Multiple redundant paths
Q#35: VLANs can be based on:
(A) Port, protocol, MAC, IP subnet
(B) Speed only
(C) Physical distance
(D) None
Answer: (A) Port, protocol, MAC, IP subnet
Q#36: Router-on-a-stick requires:
(A) Subinterfaces for each VLAN
(B) Single interface
(C) Hub only
(D) None
Answer: (A) Subinterfaces for each VLAN
Q#37: Backbone network improves:
(A) Network scalability and performance
(B) Only physical layout
(C) Wireless connectivity only
(D) None
Answer: (A) Network scalability and performance
Q#38: Inter-VLAN communication requires:
(A) Router or Layer 3 switch
(B) Hub only
(C) CSMA/CD
(D) None
Answer: (A) Router or Layer 3 switch
Q#39: Broadcast frames are forwarded:
(A) Within same VLAN only
(B) Across all VLANs
(C) Wireless only
(D) None
Answer: (A) Within same VLAN only
Q#40: Trunk port uses:
(A) VLAN tagging
(B) Single VLAN
(C) Only wired LAN
(D) None
Answer: (A) VLAN tagging
Q#41: VLAN benefits for management:
(A) Simplifies network administration
(B) Reduces hardware
(C) Only physical
(D) None
Answer: (A) Simplifies network administration
Q#42: Collapsed backbone disadvantage:
(A) Single point of failure
(B) Expensive
(C) Requires fiber
(D) None
Answer: (A) Single point of failure
Q#43: Backbone networks are used to:
(A) Interconnect multiple LANs
(B) Only one LAN
(C) Wireless LAN only
(D) None
Answer: (A) Interconnect multiple LANs
Q#44: VLAN increases:
(A) Network flexibility
(B) Speed only
(C) Physical distance
(D) None
Answer: (A) Network flexibility
Q#45: Router vs Layer 3 switch for VLANs:
(A) Both perform inter-VLAN routing
(B) Only switch
(C) Only router
(D) None
Answer: (A) Both perform inter-VLAN routing
Q#46: VLAN improves security by:
(A) Segmenting network and isolating traffic
(B) Reducing speed
(C) Only wired LAN
(D) None
Answer: (A) Segmenting network and isolating traffic
Q#47: VLAN tagging allows:
(A) Identification of VLAN frames across trunk links
(B) Reduces collision
(C) Fiber optic use
(D) None
Answer: (A) Identification of VLAN frames across trunk links
Q#48: Distributed backbone advantage:
(A) Easy expansion without disrupting network
(B) Single point of failure
(C) Only wireless
(D) None
Answer: (A) Easy expansion without disrupting network
Q#49: Backbone network design goal:
(A) High speed, reliability, scalability
(B) Low cost only
(C) Wireless only
(D) None
Answer: (A) High speed, reliability, scalability
Q#50: Primary purpose of VLANs:
(A) Logical segmentation of network for performance, security, and management
(B) Physical separation only
(C) Wireless connectivity only
(D) None
Answer: (A) Logical segmentation of network for performance, security, and management