Q#1: IP (Internet Protocol) is responsible for:
(A) Delivering packets from source to destination
(B) Detecting collisions
(C) Controlling access to media
(D) None
Answer: (A) Delivering packets from source to destination
Q#2: IP operates at:
(A) Network layer
(B) Data link layer
(C) Transport layer
(D) None
Answer: (A) Network layer
Q#3: IPv4 header length is:
(A) 20–60 bytes
(B) 8 bytes
(C) 128 bytes
(D) None
Answer: (A) 20–60 bytes
Q#4: IPv4 total length field specifies:
(A) Entire packet size including header and data
(B) Header only
(C) Data only
(D) None
Answer: (A) Entire packet size including header and data
Q#5: IPv4 header fields include:
(A) Version, IHL, TTL, Protocol, Source IP, Destination IP
(B) MAC addresses only
(C) Port numbers only
(D) None
Answer: (A) Version, IHL, TTL, Protocol, Source IP, Destination IP
Q#6: Time-to-Live (TTL) prevents:
(A) Packets from looping indefinitely
(B) Collisions
(C) Data corruption
(D) None
Answer: (A) Packets from looping indefinitely
Q#7: Protocol field in IPv4 header indicates:
(A) Next layer protocol (TCP, UDP, ICMP)
(B) IP version
(C) Packet length
(D) None
Answer: (A) Next layer protocol (TCP, UDP, ICMP)
Q#8: Fragmentation in IPv4 occurs at:
(A) Network layer
(B) Data link layer
(C) Transport layer
(D) None
Answer: (A) Network layer
Q#9: MTU (Maximum Transmission Unit) defines:
(A) Maximum packet size that can be transmitted
(B) Minimum packet size
(C) Port number
(D) None
Answer: (A) Maximum packet size that can be transmitted
Q#10: IPv4 fragmentation fields include:
(A) Identification, Flags, Fragment Offset
(B) MAC only
(C) Port number only
(D) None
Answer: (A) Identification, Flags, Fragment Offset
Q#11: Identification field in IPv4 header:
(A) Identifies fragments of a packet
(B) Identifies device
(C) Detects collisions
(D) None
Answer: (A) Identifies fragments of a packet
Q#12: Flags field indicates:
(A) Whether packet can be fragmented or more fragments follow
(B) IP version
(C) Protocol type
(D) None
Answer: (A) Whether packet can be fragmented or more fragments follow
Q#13: Fragment Offset field specifies:
(A) Position of fragment in original packet
(B) Packet length
(C) TTL
(D) None
Answer: (A) Position of fragment in original packet
Q#14: Checksum in IPv4 header is used for:
(A) Error detection in header
(B) Data correction
(C) IP routing
(D) None
Answer: (A) Error detection in header
Q#15: IPv4 options field is:
(A) Optional, rarely used for control or debugging
(B) Mandatory
(C) Used for checksum only
(D) None
Answer: (A) Optional, rarely used for control or debugging
Q#16: IPv4 address consists of:
(A) Network ID and Host ID
(B) MAC address
(C) Port number
(D) None
Answer: (A) Network ID and Host ID
Q#17: Unicast IP packet is sent to:
(A) Single destination host
(B) All hosts
(C) Multiple specific hosts
(D) None
Answer: (A) Single destination host
Q#18: Broadcast IP packet is sent to:
(A) All hosts in a network
(B) Single host
(C) Multicast group
(D) None
Answer: (A) All hosts in a network
Q#19: Multicast IP packet is sent to:
(A) Group of hosts
(B) Single host
(C) All hosts
(D) None
Answer: (A) Group of hosts
Q#20: IPv4 private addresses cannot be routed on:
(A) Internet
(B) LAN
(C) Wireless LAN
(D) None
Answer: (A) Internet
Q#21: NAT (Network Address Translation) is used to:
(A) Translate private IP to public IP
(B) Assign MAC addresses
(C) Detect collisions
(D) None
Answer: (A) Translate private IP to public IP
Q#22: CIDR notation /24 represents subnet mask:
(A) 255.255.255.0
(B) 255.255.0.0
(C) 255.0.0.0
(D) None
Answer: (A) 255.255.255.0
Q#23: Default gateway is used to:
(A) Forward packets to other networks
(B) Forward within same LAN
(C) Detect collisions
(D) None
Answer: (A) Forward packets to other networks
Q#24: ARP (Address Resolution Protocol) maps:
(A) IP address to MAC address
(B) MAC to IP
(C) IP to port
(D) None
Answer: (A) IP address to MAC address
Q#25: RARP (Reverse ARP) maps:
(A) MAC address to IP address
(B) IP to MAC
(C) Port to IP
(D) None
Answer: (A) MAC address to IP address
Q#26: IPv4 loopback address:
(A) 127.0.0.1
(B) 0.0.0.0
(C) 192.168.1.1
(D) None
Answer: (A) 127.0.0.1
Q#27: IPv4 address classes include:
(A) A, B, C, D, E
(B) Only A, B, C
(C) Only D, E
(D) None
Answer: (A) A, B, C, D, E
Q#28: Class D addresses are used for:
(A) Multicast
(B) Broadcast
(C) Private networks
(D) None
Answer: (A) Multicast
Q#29: Class E addresses are reserved for:
(A) Experimental use
(B) Multicast
(C) Private use
(D) None
Answer: (A) Experimental use
Q#30: IPv4 address exhaustion led to:
(A) IPv6 adoption
(B) NAT use only
(C) Subnetting removal
(D) None
Answer: (A) IPv6 adoption
Q#31: IPv6 address length:
(A) 128 bits
(B) 32 bits
(C) 64 bits
(D) None
Answer: (A) 128 bits
Q#32: IPv6 global unicast addresses start with:
(A) 2000::/3
(B) FE80::/10
(C) FF00::/8
(D) None
Answer: (A) 2000::/3
Q#33: IPv6 link-local addresses start with:
(A) FE80::/10
(B) 2000::/3
(C) FF00::/8
(D) None
Answer: (A) FE80::/10
Q#34: IPv6 multicast addresses start with:
(A) FF00::/8
(B) 2000::/3
(C) FE80::/10
(D) None
Answer: (A) FF00::/8
Q#35: IPv6 anycast address delivers packets to:
(A) Nearest host among a group
(B) All hosts
(C) Single host only
(D) None
Answer: (A) Nearest host among a group
Q#36: IPv6 eliminates:
(A) NAT requirement
(B) Subnetting
(C) MAC addresses
(D) None
Answer: (A) NAT requirement
Q#37: Fragmentation in IPv6 is performed by:
(A) Source host
(B) Routers
(C) Switches
(D) None
Answer: (A) Source host
Q#38: IPv6 header is:
(A) Simplified compared to IPv4
(B) More complex
(C) Same as IPv4
(D) None
Answer: (A) Simplified compared to IPv4
Q#39: ICMP (Internet Control Message Protocol) is used for:
(A) Error reporting and diagnostics
(B) Routing packets
(C) Fragmentation
(D) None
Answer: (A) Error reporting and diagnostics
Q#40: ICMP echo request/reply is used in:
(A) Ping
(B) Traceroute
(C) Routing
(D) None
Answer: (A) Ping
Q#41: TTL field in IP header decreases by:
(A) 1 at each router hop
(B) 1 per link
(C) 10 per hop
(D) None
Answer: (A) 1 at each router hop
Q#42: IPv4 packet routing is based on:
(A) Destination IP address
(B) MAC address
(C) Port number
(D) None
Answer: (A) Destination IP address
Q#43: IPv6 extension headers allow:
(A) Optional features like routing, fragmentation, authentication
(B) Mandatory fields only
(C) Only checksum
(D) None
Answer: (A) Optional features like routing, fragmentation, authentication
Q#44: Fragmentation fields in IPv6 are in:
(A) Extension header, not main header
(B) Main header only
(C) Transport layer
(D) None
Answer: (A) Extension header, not main header
Q#45: IPv6 auto-configuration can be:
(A) Stateless or stateful (DHCPv6)
(B) Static only
(C) Manual only
(D) None
Answer: (A) Stateless or stateful (DHCPv6)
Q#46: IP packet encapsulation occurs in:
(A) Data link layer
(B) Physical layer
(C) Transport layer
(D) None
Answer: (A) Data link layer
Q#47: IPv4 broadcast is replaced in IPv6 by:
(A) Multicast
(B) Unicast
(C) Anycast
(D) None
Answer: (A) Multicast
Q#48: IP addressing ensures:
(A) Unique identification of devices for packet delivery
(B) Collision detection
(C) MAC assignment
(D) None
Answer: (A) Unique identification of devices for packet delivery
Q#49: IPv6 loopback address:
(A) ::1
(B) FE80::
(C) 127.0.0.1
(D) None
Answer: (A) ::1
Q#50: Primary function of IP:
(A) End-to-end delivery of packets
(B) Error detection
(C) Multiplexing
(D) None
Answer: (A) End-to-end delivery of packets