Q#1: IPv6 address length is:
(A) 32 bits
(B) 64 bits
(C) 128 bits
(D) 256 bits
Answer: (C) 128 bits
Q#2: IPv6 was developed to solve:
(A) IP address exhaustion
(B) MAC address shortage
(C) Port limitation
(D) None
Answer: (A) IP address exhaustion
Q#3: IPv6 address is written in:
(A) Decimal
(B) Hexadecimal
(C) Binary only
(D) Octal
Answer: (B) Hexadecimal
Q#4: IPv6 address consists of how many hexadecimal blocks?
(A) 4
(B) 6
(C) 8
(D) 10
Answer: (C) 8
Q#5: Each IPv6 block contains:
(A) 8 bits
(B) 16 bits
(C) 32 bits
(D) 64 bits
Answer: (B) 16 bits
Q#6: IPv6 loopback address is:
(A) 127.0.0.1
(B) ::1
(C) FE80::1
(D) FF00::1
Answer: (B) ::1
Q#7: IPv6 unspecified address is:
(A) ::
(B) ::1
(C) FE80::
(D) FF00::
Answer: (A) ::
Q#8: IPv6 eliminates the need for:
(A) NAT
(B) Routing
(C) Subnetting
(D) MAC address
Answer: (A) NAT
Q#9: IPv6 header size is fixed at:
(A) 20 bytes
(B) 40 bytes
(C) 60 bytes
(D) 80 bytes
Answer: (B) 40 bytes
Q#10: IPv6 does not include which field from IPv4?
(A) Version
(B) TTL
(C) Header checksum
(D) Source address
Answer: (C) Header checksum
Q#11: In IPv6, TTL field is replaced by:
(A) Hop Limit
(B) Flow Label
(C) Payload Length
(D) Next Header
Answer: (A) Hop Limit
Q#12: Flow Label field is used for:
(A) Quality of Service handling
(B) MAC addressing
(C) Fragmentation
(D) Error detection
Answer: (A) Quality of Service handling
Q#13: Payload Length field indicates:
(A) Size of data
(B) Header size
(C) MAC size
(D) None
Answer: (A) Size of data
Q#14: Next Header field identifies:
(A) Type of following header
(B) MAC address
(C) Port number
(D) None
Answer: (A) Type of following header
Q#15: IPv6 fragmentation is done by:
(A) Routers
(B) Switches
(C) Source host
(D) Destination only
Answer: (C) Source host
Q#16: IPv6 does not support:
(A) Broadcast
(B) Multicast
(C) Unicast
(D) Anycast
Answer: (A) Broadcast
Q#17: IPv6 multicast addresses start with:
(A) 2000::
(B) FE80::
(C) FF00::
(D) ::1
Answer: (C) FF00::
Q#18: IPv6 link-local addresses start with:
(A) FE80::/10
(B) 2000::/3
(C) FF00::/8
(D) ::/128
Answer: (A) FE80::/10
Q#19: Global unicast addresses start with:
(A) 2000::/3
(B) FE80::/10
(C) FF00::/8
(D) ::
Answer: (A) 2000::/3
Q#20: Anycast address delivers packet to:
(A) All hosts
(B) Nearest host in group
(C) Single specific host only
(D) Broadcast group
Answer: (B) Nearest host in group
Q#21: IPv6 uses which protocol for address resolution?
(A) ARP
(B) ICMPv6 Neighbor Discovery
(C) RARP
(D) DHCP only
Answer: (B) ICMPv6 Neighbor Discovery
Q#22: IPv6 auto-configuration can be:
(A) Stateless
(B) Stateful
(C) Both A and B
(D) None
Answer: (C) Both A and B
Q#23: Stateless auto-configuration does not require:
(A) DHCP server
(B) Router
(C) Link-local address
(D) Prefix
Answer: (A) DHCP server
Q#24: IPv6 address compression allows:
(A) Removing leading zeros
(B) Removing all zeros
(C) Removing blocks
(D) None
Answer: (A) Removing leading zeros
Q#25: Double colon (::) can appear in an IPv6 address:
(A) Only once
(B) Twice
(C) Three times
(D) Unlimited
Answer: (A) Only once
Q#26: IPv6 improves routing by:
(A) Hierarchical addressing
(B) Broadcast
(C) Short addresses
(D) None
Answer: (A) Hierarchical addressing
Q#27: IPv6 extension headers provide:
(A) Optional features
(B) Mandatory fields
(C) MAC mapping
(D) None
Answer: (A) Optional features
Q#28: Security in IPv6 is enhanced by:
(A) Built-in IPsec support
(B) NAT
(C) ARP
(D) None
Answer: (A) Built-in IPsec support
Q#29: IPv6 transition technique includes:
(A) Dual stack
(B) Tunneling
(C) Both A and B
(D) None
Answer: (C) Both A and B
Q#30: Dual stack means:
(A) Running IPv4 and IPv6 together
(B) Running IPv6 only
(C) Running IPv4 only
(D) None
Answer: (A) Running IPv4 and IPv6 together
Q#31: Tunneling in IPv6 is used for:
(A) Encapsulating IPv6 in IPv4
(B) Fragmentation
(C) Encryption
(D) None
Answer: (A) Encapsulating IPv6 in IPv4
Q#32: IPv6 header is simpler because it:
(A) Removes rarely used fields
(B) Adds more fields
(C) Uses checksum
(D) None
Answer: (A) Removes rarely used fields
Q#33: IPv6 supports larger address space of:
(A) 2^32
(B) 2^64
(C) 2^128
(D) 2^256
Answer: (C) 2^128
Q#34: IPv6 packet forwarding is based on:
(A) Destination address
(B) Source address
(C) Port number
(D) MAC
Answer: (A) Destination address
Q#35: IPv6 reduces routing table size by:
(A) Aggregation
(B) Broadcast
(C) MAC addressing
(D) None
Answer: (A) Aggregation
Q#36: Neighbor Discovery replaces:
(A) ARP
(B) DNS
(C) RIP
(D) None
Answer: (A) ARP
Q#37: IPv6 address format is separated by:
(A) Dots
(B) Colons
(C) Slashes
(D) Hyphens
Answer: (B) Colons
Q#38: Site-local addresses in IPv6 are:
(A) Deprecated
(B) Global
(C) Multicast
(D) None
Answer: (A) Deprecated
Q#39: Unique local addresses start with:
(A) FC00::/7
(B) FE80::
(C) 2000::
(D) FF00::
Answer: (A) FC00::/7
Q#40: IPv6 improves QoS using:
(A) Flow Label
(B) TTL
(C) Checksum
(D) None
Answer: (A) Flow Label
Q#41: IPv6 header checksum is removed because:
(A) Error checking done at other layers
(B) Not required
(C) Uses MAC
(D) None
Answer: (A) Error checking done at other layers
Q#42: IPv6 routing protocols include:
(A) OSPFv3
(B) RIPng
(C) Both A and B
(D) None
Answer: (C) Both A and B
Q#43: IPv6 supports mobile IP better because:
(A) Larger address space
(B) Broadcast
(C) NAT
(D) None
Answer: (A) Larger address space
Q#44: IPv6 improves security by:
(A) Mandatory IPsec support
(B) NAT
(C) ARP
(D) None
Answer: (A) Mandatory IPsec support
Q#45: IPv6 fragmentation header is an example of:
(A) Extension header
(B) Main header
(C) Transport header
(D) None
Answer: (A) Extension header
Q#46: IPv6 uses ICMPv6 for:
(A) Error reporting and Neighbor Discovery
(B) Routing only
(C) Fragmentation
(D) None
Answer: (A) Error reporting and Neighbor Discovery
Q#47: IPv6 removes broadcast to:
(A) Reduce unnecessary traffic
(B) Increase collisions
(C) Increase load
(D) None
Answer: (A) Reduce unnecessary traffic
Q#48: IPv6 prefix length is written as:
(A) /64
(B) 255.255.255.0
(C) Dotted decimal
(D) None
Answer: (A) /64
Q#49: IPv6 supports:
(A) Unicast, Multicast, Anycast
(B) Broadcast only
(C) Unicast only
(D) None
Answer: (A) Unicast, Multicast, Anycast
Q#50: Main advantage of IPv6 is:
(A) Vast address space and improved performance
(B) Smaller header
(C) No routing
(D) None
Answer: (A) Vast address space and improved performance